Brother Sewing Machine KE 430F User Manual

SERVICE MANUAL  
KE-430F  
BE-438F  
Please read this manual before making any adjustments.  
ELECTRONIC DIRECT DRIVE LOCKSTITCH BAR TACKER  
ELECTRONIC DIRECT DRIVE LOCKSTITCH BUTTON SEWER  
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SAFETY INSTRUCTIONS  
[1] Safety indications and their meanings  
This service manual and the indications and symbols that are used on the machine itself are provided in order to ensure  
safe operation of this machine and to prevent accidents and injury to yourself or other people.  
The meanings of these indications and symbols are given below.  
Indications  
The instructions which follow this term indicate situations where failure to follow the  
instructions will result in death or serious injury.  
DANGER  
The instructions which follow this term indicate situations where failure to follow the  
instructions could result in death or serious injury.  
WARNING  
The instructions which follow this term indicate situations where failure to follow the  
instructions may result in minor or moderate injury.  
CAUTION  
Symbols  
This symbol ( ) indicates something that you should be careful of. The picture inside the triangle  
indicates the nature of the caution that must be taken.  
(For example, the symbol at left means “beware of injury”.)  
・・・・・・  
This symbol ( ) indicates something that you must not do.  
・・・・・・  
This symbol ( ) indicates something that you must do. The picture inside the circle indicates the  
nature of the thing that must be done.  
・・・・・・  
(For example, the symbol at left means “you must make the ground connection”.)  
KE-430F, BE-438F  
i
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[2] Notes on safety  
DANGER  
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet  
before opening the face plate of the control box. Touching areas where high voltages are present will result in  
serious injury from electric shocks.  
WARNING  
Do not allow any liquids to get onto this sewing machine, otherwise fire, electric shocks or operating problems could  
occur.  
If any liquid gets inside the sewing machine (machine head or control box), immediately turn off the power and  
disconnect the power plug from the electrical outlet, and then contact the place of purchase or a qualified  
technician.  
CAUTION  
Environmental requirements  
Use the sewing machine in an area which is free from  
sources of strong electrical noise such as electrical  
line noise or static electric noise.  
Sources of strong electrical noise may cause  
problems with correct operation.  
The ambient temperature should be within the range  
of 5°C to 35°C during use.  
Temperatures which are lower or higher than this  
may cause problems with correct operation.  
The relative humidity should be within the range of  
45% to 85% during use, and no dew formation should  
occur in any devices.  
Excessively dry or humid environments and dew  
formation may cause problems with correct operation.  
Any fluctuations in the power supply voltage should  
be within ±10% of the rated voltage for the machine.  
Voltage fluctuations which are greater than this may  
cause problems with correct operation.  
The power supply capacity should be greater than the  
requirements for the sewing machine’s power  
consumption.  
In the event of an electrical storm, turn off the power  
and disconnect the power cord from the wall outlet.  
Lightning may cause problems with correct operation.  
Insufficient power supply capacity may cause  
problems with correct operation.  
Installation  
Machine installation should only be carried out by a  
qualified technician.  
All cords should be secured at least 25 mm away  
from any moving parts. Furthermore, do not  
excessively bend the cords or secure them too firmly  
with staples, otherwise there is the danger that fire or  
electric shocks may occur.  
Contact your Brother dealer or a qualified electrician  
for any electrical work that may need to be done.  
The sewing machine weighs approximately 57 kg.  
The installation should be carried out by two or more  
people.  
Install the safety covers to the machine head and  
motor.  
If using a work table which has casters, the casters  
should be secured in such a way so that they cannot  
move.  
Do not connect the power cord until installation is  
complete, otherwise the machine may operate if the  
foot switch is depressed by mistake, which may result  
in injury.  
Be sure to wear protective goggles and gloves when  
handling the lubricating oil and grease, so that they  
do not get into your eyes or onto your skin, otherwise  
inflammation can result.  
Furthermore, do not drink the oil or eat the grease  
under any circumstances, as they can cause vomiting  
and diarrhoea.  
Hold the machine head with both hands when tilting it  
back or returning it to its original position.  
Furthermore, after tilting back the machine head, do  
not push the face plate side or the pulley side from  
above, as this may cause the machine head to topple  
over, which may result in personal injury or damage  
to the machine.  
Keep the oil out of the reach of children.  
Be sure to connect the ground. If the ground  
connection is not secure, you run a high risk of  
receiving a serious electric shock, and problems with  
correct operation may also occur.  
KE-430F, BE-438F  
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ii  
CAUTION  
Sewing  
This sewing machine should only be used by  
operators who have received the necessary training  
in safe use beforehand.  
If using a work table which has casters, the casters  
should be secured in such a way so that they cannot  
move.  
The sewing machine should not be used for any  
applications other than sewing.  
Attach all safety devices before using the sewing  
machine. If the machine is used without these  
devices attached, injury may result.  
Be sure to wear protective goggles when using the  
machine.  
If goggles are not worn, there is the danger that if a  
needle breaks, parts of the broken needle may enter  
your eyes and injury may result.  
Do not touch any of the moving parts or press any  
objects against the machine while sewing, as this  
may result in personal injury or damage to the  
machine.  
Turn off the power switch at the following times,  
otherwise the machine may operate if the foot switch  
is depressed by mistake, which may result in injury.  
If an error occurs in machine operation, or if abnormal  
noises or smells are noticed, immediately turn off the  
power switch. Then contact your nearest Brother  
dealer or a qualified technician.  
When replacing the needle and bobbin  
When not using the machine and when leaving the  
machine unattended  
If the machine develops a problem, contact your  
nearest Brother dealer or a qualified technician.  
Use threading mode or turn off the power first in order  
to carry out threading.  
Cleaning  
Turn off the power switch before carrying out  
cleaning, otherwise the machine may operate if the  
foot switch is depressed by mistake, which may result  
in injury.  
Be sure to wear protective goggles and gloves when  
handling the lubricating oil and grease, so that they  
do not get into your eyes or onto your skin, otherwise  
inflammation can result.  
Furthermore, do not drink the oil or eat the grease  
under any circumstances, as they can cause vomiting  
and diarrhoea.  
Keep the oil out of the reach of children.  
Maintenance and inspection  
Maintenance and inspection of the sewing machine  
should only be carried out by a qualified technician.  
Hold the machine head with both hands when tilting it  
back or returning it to its original position.  
Furthermore, after tilting back the machine head, do  
not push the face plate side or the pulley side from  
above, as this could cause the machine head to  
topple over, which may result in personal injury or  
damage to the machine.  
Ask your Brother dealer or a qualified electrician to  
carry out any maintenance and inspection of the  
electrical system.  
Turn off the power switch and disconnect the power  
cord from the wall outlet at the following times,  
otherwise the machine may operate if the foot switch  
is depressed by mistake, which may result in injury.  
When replacing parts and installing optional  
accessories, be sure to use only genuine Brother  
parts.  
Brother will not be held responsible for any accidents  
or problems resulting from the use of non-genuine  
parts.  
When carrying out inspection, adjustment and  
maintenance  
When replacing consumable parts such as the  
rotary hook  
If any safety devices have been removed, be  
absolutely sure to re-install them to their original  
positions and check that they operate correctly before  
using the machine.  
If the power switch needs to be left on when carrying  
out some adjustment, be extremely careful to observe  
all safety precautions.  
To prevent accidents and problems, do not modify  
the machine yourself.  
Brother will not be held responsible for any accidents  
or problems resulting from modifications made to the  
machine.  
KE-430F, BE-438F  
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iii  
[3] Warning labels  
The following warning labels appear on the sewing machine.  
Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are  
difficult to read, please contact your nearest Brother dealer.  
1
Touching areas where high voltages are present can result in severe injury.  
Turn off the power before removing the cover.  
2
*Safety devices  
3
Eye guard  
Finger guard  
Solenoid cover  
Thread take-up cover  
Side cover  
Rear cover, etc.  
Be sure to connect the ground. If  
the ground connection is not  
6
secure, you run a high risk of  
receiving a serious electric shock,  
and  
problems  
with  
correct  
operation may also occur.  
Direction of operation  
7
8
Be careful to avoid injury from the moving thread  
take-up.  
Do not hold, otherwise  
problems with  
4
5
operation or injury may  
occur.  
Be careful not to get your hands caught when  
returning the machine head to its original position  
after it has been tilted.  
9
KE-430F, BE-438F  
iv  
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Thread take-up cover  
Eye guard  
Finger guard  
2520B  
2522B  
Rear cover  
Solenoid cover  
Side cover  
Transformer box  
(100V/400V system only)  
Oil tank  
2521B  
2559B  
KE-430F, BE-438F  
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v
CONTENTS  
1. SPECIFICATIONS ............................... 1  
2. NOTES ON HANDLING........................ 2  
7. USING SD CARDS...............................43  
7-1. Notes on handling SD cards  
(commercially available) ...................................... 43  
3. RELATIONSHIP BETWEEN  
7-2. Structure of an SD card folder ............................. 43  
7-3. Preparation for reading and writing data.............. 44  
PROGRAMS AND PATTERNS ........... 3  
4. FUNCTION SETTINGS......................... 6  
7-4. Reading additional pattern data........................... 45  
7-5. Writing additional pattern data to an SD card ...... 46  
7-6. Reading memory switch data .............................. 47  
4-1. List of special functions when power is  
turned on.............................................................. 6  
4-2. List of advanced functions ................................... 8  
4-3. Setting memory switches (Advanced).................. 9  
4-4. List of memory switches..................................... 10  
4-5. Setting the foot switch operation mode.............. 22  
4-6. Checking the error history....................................24  
4-7. Input checking method.........................................25  
4-8. Output checking method......................................28  
4-9. Confirming software version ................................30  
4-10. Protection settings .............................................31  
5. EDITING PATTERN DATA.................. 34  
5-1. Tension information in pattern data......................34  
5-2. Work flowchart .....................................................35  
5-3. Switching to pattern editing mode........................36  
5-4. Checking pattern data..........................................36  
5-5. Copying pattern data............................................37  
5-6. Adding tension codes...........................................38  
5-7. Changing tension codes ......................................39  
5-8. Deleting tension codes.........................................40  
7-7. Writing memory switch data to the SD card......... 48  
7-8. Reading program data......................................... 49  
7-9. Writing program data to an SD card .................... 50  
7-10. Reading sewing machine data .......................... 51  
7-11. Writing sewing machine data to an SD card...... 52  
7-12. Writing error log data and memory switch log  
data to an SD card ............................................ 53  
7-13. Updating the control program version ............... 54  
8. MECHANICAL DESCRIPTIONS ..........55  
8-1. Needle bar and thread take-up mechanisms....... 55  
8-2. Lower shaft and shuttle race mechanisms........... 55  
8-3. Work clamp lifter mechanism............................... 56  
8-4. Thread wiper mechanism .................................... 57  
8-5. Feed mechanism................................................. 58  
8-6. Thread trimmer mechanism................................. 59  
8-7. Tension release mechanism................................ 60  
8-8. Thread nipper mechanism (KE-430F -03, -0F,  
-0K specifications only)........................................ 60  
6. X AND Y PARALLEL MOVEMENT OF  
SEWING PATTERNS........................... 41  
KE-430F, BE-438F  
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10-14. Work clamp arm mechanism (KE-430F) ....... 100  
10-15. Work clamp arm mechanism (BE-438F) ....... 101  
10-16. Covers........................................................... 102  
11. ADJUSTMENT.................................. 103  
9. DISASSEMBLY ................................... 61  
9-1. Covers .................................................................61  
9-2. Work clamp arm mechanism................................62  
9-3. Needle bar mechanism........................................63  
9-4. Upper shaft mechanism.......................................64  
9-5. Lower shaft mechanism.......................................66  
9-6. Lubrication ...........................................................68  
9-7. Feed mechanism .................................................69  
9-8. Thread wiper mechanism.....................................70  
9-9. Work clamp lifter mechanism...............................71  
9-10. Threading mechanism .......................................73  
9-11. Tension release mechanism..............................73  
11-1. Standard thread tension.................................. 103  
11-1-1. Upper and lower thread tension................ 104  
11-1-2. Thread take-up spring............................... 105  
11-1-3. Arm thread guide C................................... 106  
11-1-4. Needle bar bush thread guide D............... 106  
11-2. Adjusting the needle bar height....................... 106  
11-3. Adjusting the needle bar lift amount and the  
driver needle guard ......................................... 107  
11-4. Adjusting the needle clearance ....................... 107  
11-5. Adjusting the shuttle race thread guide ........... 108  
11-6. Rotary hook lubrication amount....................... 108  
11-7. Adjusting the thread trimming.......................... 109  
11-8. Adjusting the position of the movable knife ..... 110  
11-9. Replacing the movable knife and fixed knife ... 111  
9-12. Thread nipper mechanism (KE-430F -03, -0F,  
-0K specifications only)......................................74  
9-13. Thread trimmer mechanism...............................75  
9-14. Shuttle hook mechanism ...................................77  
10. ASSEMBLY ....................................... 78  
10-1. Thread trimmer mechanism (1)..........................78  
10-2. Tension release mechanism..............................80  
10-3. Threading mechanism .......................................80  
10-4. Thread wiper mechanism ..................................81  
10-5. Thread nipper mechanism.................................82  
10-6. Work clamp lifter mechanism.............................83  
10-7. Feed mechanism ...............................................86  
10-8. Upper shaft mechanism.....................................90  
10-9. Needle bar mechanism......................................92  
10-10. Lower shaft mechanism...................................94  
10-11. Lubrication.......................................................98  
10-12. Shuttle hook mechanism .................................98  
10-13. Thread trimmer mechanism (2) .......................99  
11-10. Adjusting the work clamp lift amount  
(KE-430F) ..................................................... 112  
11-11. Adjusting the button clamp lift amount  
(BE-438F) ..................................................... 112  
11-12. Adjusting the holding pressure (BE-438F) .... 113  
11-13. Adjusting the position of the button clamp  
(BE-438F) ..................................................... 113  
11-14. Adjusting the thread trimmer cam position .... 113  
11-15. Adjusting the thread wiper............................. 114  
11-16. Adjusting the tension release amount ........... 115  
11-17. Adjusting the backlash amount (play) of the  
lower shaft gear............................................. 116  
11-18. Adjusting the home position .......................... 117  
11-18-1. X- and Y-feed motor home positions ...... 117  
11-18-2. Work clamp lift motor home position....... 119  
11-18-3. Thread nipper motor home position........ 121  
11-19. Adjusting the main shaft motor standard  
position.......................................................... 123  
KE-430F, BE-438F  
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11-20. Correcting the digital tension output ..............125  
11-21. Checking the machine head switch ...............127  
11-22. Setting method for standard depression  
strokes (Foot switch) .....................................127  
12. APPLYING GREASE........................129  
12-1. Applying grease (Work clamp: KE-430F).........129  
12-2. Applying grease  
(When “GREASEUP” appears)........................129  
13. HOW TO INSTALL THE FEED PLATE  
FOR KE-430C SERIES IN KE-430F  
AND BE-438F ................................. 133  
14. INSTALLING THE 2-PEDAL FOOT  
SWITCH (OPTION) ...........................134  
15. ELECTRIC MECHANISM .................135  
15-1. Precautions at the time of adjustment..............135  
15-2. Components inside and outside the control box  
and in the operation panel ...............................136  
15-3. Fuse explanation .............................................137  
15-4. Connectors ......................................................138  
15-4-1. Connector positions ..................................138  
15-4-2. Contact failure...........................................140  
15-5. Troubleshooting...............................................144  
15-5-1. Troubleshooting flowchart.........................144  
15-5-2. Problem solution and measures................148  
16. TABLE OF ERROR CODES.............163  
17. TROUBLESHOOTING......................168  
18. 7-SEGMENT DISPLAY.....................171  
KE-430F, BE-438F  
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1. SPECIFICATIONS  
1. SPECIFICATIONS  
2452B  
2278B  
KE-430F  
BE-438F  
Electronic direct drive lockstitch bar tacker Electronic direct drive lockstitch button sewer  
Stitch formation  
Single needle lock stitch  
Maximum sewing speed  
Pattern size (X x Y)  
3,200 sti/min  
2,700 sti/min  
40 x 30 mm max.  
6.4 x 6.4 mm max.  
Dimensions of buttons  
that can be sewn  
Outer diameter of button 8 - 30 mm (*1)  
Feed mechanism  
Stitch length  
Y-θ intermittent feed mechanism (pulse-motor driven mechanism)  
0.05 - 12.7 mm 0.05 – 6.4 mm  
Refer to “List of Sewing Patterns” on the CD instruction manual for the number of stitches  
in sewing patterns which have already been entered.  
Number of stitches  
Maximum stitch number  
Work clamp lifter  
Approx. 5,000 stitches (1 pattern)  
Pulse-motor driven mechanism  
Work clamp height  
Button clamp height  
17 mm max.  
13 mm max.  
Starting method  
Hook  
Foot switch or 2-pedal foot switch (option)  
Shuttle hook (shuttle hook 2, optional)  
Standard equipment  
Shuttle hook  
Digital tension set  
Thread wiper device  
Thread trimmer device  
Standard equipment  
Standard equipment  
-03, -0K, -0F specifications:  
Standard equipment ;  
Thread nipper device  
Option  
-05 specifications: Option  
Data storage method  
Data recording media  
Number of cycle programs  
Flash memory (Any sewing pattern can be added using SD card)  
SD card (*2)  
Up to 30 can be registered (up to 50 steps each)  
89 sewing patterns are set already  
64 sewing patterns are set already  
Number of stored data  
(Up to a maximum of 512 additional types of sewing patterns. Total number of stitches of  
stored data which can be added is within 500,000.) (*3)  
Motor  
AC servo motor 550 W  
Machine head: approx. 57 kg, Operation panel: approx. 0.4 kg  
Control box: approx. 9 kg  
Weights  
Power source  
Single-phase 110V / 220V / 230V, 3-phase 220V / 380V / 400V 400VA  
*1 Use the optional button clamp B (S03634-101) for diameters of 20 mm or greater.  
*2 No guarantees of operation can be given for any media. Use one with a capacity of 2GB or less.  
*3 The number of sewing patterns and the number of stitches that can be recorded will vary depending on the number of  
stitches in each sewing pattern.  
KE-430F, BE-438F  
1
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2. NOTES ON HANDLING  
2. NOTES ON HANDLING  
About the machine set-up location  
Do not set up this sewing machine near other equipment such  
as televisions, radios or cordless telephones, otherwise such  
equipment may be affected by electronic interference from the  
sewing machine.  
The sewing machine should be plugged directly into an AC wall  
outlet. Operation problems may result if extension cords are  
used.  
2516B  
Carrying the machine  
The machine should be carried by the arm by two people as  
shown in the illustration.  
When holding the machine head, do not hold it by the pulse  
motor (1) or the solenoid (2), otherwise it may damage the  
pulse motor (1) or the solenoid (2).  
2517B  
Tilting back the machine head  
1. Pack away any tools which are near the table.  
2. Secure the foot (A) so that the table will not move, and then pull  
the arm with both hands to tilt back the machine head.  
* While supporting the arm with both hands, gently lower it.  
2518B  
Returning the machine head to the upright position  
1. Pack away any tools which are near the table.  
2. While supporting the arm with both hands, gently return the  
machine head to its original position.  
2519B  
KE-430F, BE-438F  
2
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3. RELATIONSHIP BETWEEN PROGRAMS AND PATTERNS  
3. RELATIONSHIP BETWEEN PROGRAMS AND  
PATTERNS  
Programs specify the way that patterns (stitches) are to be sewn (parameters).  
Program  
Pattern  
Parameter  
X-scale  
Y-scale  
Sewing speed  
Slow start pattern  
Upper thread tension  
etc. *1  
2590B  
<Programming method>  
1. Use a standard pattern which has been registered in the actual sewing machine (430F: No. 1 to 89, 438F: 1 to 64) *2,  
and save the pattern that you want to sew into that program number.  
2. Set the parameters (such as X-scale, Y-scale, sewing speed and upper thread tension). This completes the program.  
* When actually sewing, select the program number and then start sewing.  
*1 Depending on the memory switch settings, the height of the work clamp/button clamp can also be set by means of  
parameters.  
*2 The PS300B can be used to create patterns and load them into actual sewing machines.  
KE-430F, BE-438F  
3
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3. RELATIONSHIP BETWEEN PROGRAMS AND PATTERNS  
This sewing machine contains programs numbered 1 to 89 (1 to 64 for the 438F) which contain standard patterns, and can  
also be programmed with additional programs numbered from 200 to 999.  
Program number 1  
Pattern  
Parameter  
number 1  
Program number 2  
Pattern  
Parameter  
number 2  
Pattern numbers 1 to 89 (1 to 64 for the  
438F) are registered (set) into program  
Program number 3  
Pattern  
numbers 1 to 89 (1 to 64 for the 438F), and  
only the parameters for these programs can  
be set.  
Parameter  
number 3  
Program number 89  
Pattern  
Parameter  
number 89  
Program numbers200 to 999  
Standard patterns 1 to 89 (1 to 64 for the  
Pattern  
numbers 200 to 999  
Parameter  
438F) can be selected as desired for  
program numbers 200 to 999. In addition,  
patterns which have been created using the  
PS300B can also be selected.  
* Patterns 1 to 89 (1 to 64 for the 438F) are  
listed in “2-2. List of Sewing Patterns  
(KE-430F)” and “2-3. List of Sewing  
Patterns (BE-438F)” in the CD instruction  
manual.  
2591B  
KE-430F, BE-438F  
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4
3. RELATIONSHIP BETWEEN PROGRAMS AND PATTERNS  
After a program has been finished, you can revise the program by changing the setting details.  
You can organize the use of program numbers so that, for instance, programs with the same pattern but different sizes or  
upper thread tensions to suit the material being sewn are preset. (Refer to “5-2. Program setting method” in the CD  
instruction manual.)  
Example:  
Program No. 200  
Pattern: No. 50  
X- and Y-scale: 150%  
Sewing speed: 2700 sti/min  
Upper thread tension: 100  
Pattern: No. 50  
Program No. 201  
Pattern: No. 50  
X- and Y-scale: 100%  
Sewing speed: 1000 sti/min  
Upper thread tension: 30  
Program No. 202  
Pattern: No. 50  
X- and Y-scale: 50%  
Sewing speed: 2700 sti/min  
Upper thread tension: 200  
2592B  
The following table shows restrictions for sewing program numbers, pattern numbers and parameters.  
Additional available  
Standard programs  
patterns  
Initial value  
Preset  
Not preset  
Set by user  
430F / 438F  
Model  
430F 438F  
430F  
438F  
430F 438F  
200 - 999  
(800 programs)  
Sewing program No.  
1 - 89 1 - 64 90 - 199  
1 - 89 1 - 64  
65 - 199  
1 - 999  
Number set when  
program is created (512  
programs from 200 to  
999)  
Pattern No.  
Fixed at same number as sewing  
program  
X-scale (%)  
Y-scale (%)  
20 - 200  
20 - 200  
100  
100  
Sewing speed (sti/min)  
Slow start pattern  
430F: 200 - 3200 / 438F: 200 - 2700  
2700 2300  
Lo1 - 9  
Lo8  
Lo7  
X parallel movement amount (mm)  
When memory switch No. 465 is set to 3  
Y parallel movement amount (mm)  
When memory switch No. 465 is set to 3  
-9.9 - 9.9  
0.0  
0.0  
-9.9 - 9.9  
Work clamp/button clamp height (high) (mm)  
When memory switch No. 470 is set to ON.  
430F: 10 - 17 / 438F: 6 - 13  
14  
1
10  
1
Work clamp/button clamp height (medium) (mm)  
When memory switch No. 470 is set to ON.  
430F: 1 - 17 / 438F: 1 - 13  
0 - 300  
Upper thread tension setting value  
75  
KE-430F, BE-438F  
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5
4. FUNCTION SETTINGS  
4. FUNCTION SETTINGS  
4-1. List of special functions when power is turned on  
This list shows the key operations for using special functions.  
2593B  
2594B  
2599B  
2595B  
Data initialization function  
Software version display function  
1
2
5
6
Refer to the CD Instruction Manual.  
Refer to “4-9. Confirming software version”.  
2596B  
Memory switch setting mode (Advanced)  
Error log display function  
2600B  
Refer to “4-3. Setting memory switches (Advanced)”.  
Refer to “4-6. Checking the error history”.  
2597B  
2601B  
Input check function  
Home position adjusting mode  
3
4
7
8
Refer to “4-7. Input checking method”.  
Refer to “11-18. Adjusting the home position”.  
2598B  
2602B  
Output check function  
Treadle position adjustment mode  
Refer to “11-22. Setting method for standard  
depression strokes (Foot switch)”.  
Refer to “4-8. Output checking method”.  
KE-430F, BE-438F  
6
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4. FUNCTION SETTINGS  
2603B  
2605B  
Main shaft motor standard position  
adjustment mode  
Protect setting mode  
9
11  
Refer to “11-19. Adjusting the main shaft motor  
standard position”.  
Refer to “4-10. Protection settings”.  
2606B  
2604B  
Digital tension output correction mode  
Version update  
10  
12  
Refer to “7-13. Updating the control program  
version”.  
Refer to “11-20. Correcting the digital tension output”.  
KE-430F, BE-438F  
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4. FUNCTION SETTINGS  
4-2. List of advanced functions  
This list shows the key operations for using advanced functions.  
2607B  
2612B  
2608B  
Memory switch setting mode (Standard)  
Cycle program setting mode  
1
5
6
7
Refer to the CD Instruction Manual.  
Refer to the CD Instruction Manual.  
2613B  
2609B  
Lower thread counter setting mode  
Pattern data editing mode  
2
3
Refer to the CD Instruction Manual.  
Refer to “5-3. Switching to pattern editing mode”.  
2614B  
2610B  
Production counter setting mode  
Parallel movement mode  
Refer to “6. X and Y parallel movement of sewing  
patterns”.  
Refer to the CD Instruction Manual.  
2615B  
2611B  
Program mode  
SD data read/write mode  
4
8
Refer to “7-3. Preparation for reading and writing  
data”  
Refer to the CD Instruction Manual.  
KE-430F, BE-438F  
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4. FUNCTION SETTINGS  
4-3. Setting memory switches (Advanced)  
Change the mode to memory switch setting mode.  
While pressing the TEST key and the SELECT key, turn  
on the power switch.  
1
All indicators switch off  
The memory switch number will be displayed in the  
PROGRAM No. display and the setting value for that  
number will be displayed in the menu display.  
2420B 2616B  
Select the memory switch that you would like to Press the  
change the setting for.  
number.  
or  
key to select the memory switch  
2
2422B  
If you would like to display only the numbers of While pressing the SELECT key, press the  
memory switches that have been changed from (1).  
or  
key  
default settings  
The numbers of memory switches that have been  
changed from default settings will appear in order.  
2423B  
Change the memory switch setting.  
3
4
Press the  
or  
key to change the setting value.  
The flashing display means that the setting has not yet  
been applied.  
You can make the initial setting appear in the display  
by pressing the RESET key.  
2424B  
Apply the changed setting.  
Press the ENTER key.  
The menu display will change from flashing to  
illuminated, and this means that the parameter setting  
has been applied.  
If you press the  
or  
key (1) or the TEST key  
without pressing the ENTER key, you can cancel the  
parameter changes.  
2414B  
Repeat steps 2 to 4 above to set each memory switch.  
5
6
Exit setting mode.  
Press the TEST key.  
The changes will be memorized and the sewing  
machine will switch to home position detection  
standby.  
2404B  
TEST indicator switches off  
KE-430F, BE-438F  
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4. FUNCTION SETTINGS  
4-4. List of memory switches  
NOTE:  
In standard memory switch setting mode (refer to the CD Instruction Manual), the bottom two digits only display memory  
switch Nos. 00 to 49. The bottom two digits do not display memory switch Nos. 50 to 99.  
Work clamp/button clamp settings (001 099)  
Initial  
value  
No.  
Setting range  
Setting units  
Setting details  
Work clamp/button clamp lift timing when sewing is complete  
OFF: Does not lift automatically.  
1: Lifts at the final stitch position.  
001  
1
1
OFF, 1 2  
2: Lifts after moving to the sewing start position.  
Work clamp/button clamp operation before moving to the sewing start  
position  
ON: The work clamp/button clamp can operate vertically even before  
moving to the sewing start position.  
OFF: The work clamp/button clamp cannot operate vertically before  
moving to the sewing start position.  
Work clamp/button clamp operation during pause (split program)  
ON: The work clamp/button clamp cannot rise automatically during a  
pause (split program).  
051  
052  
ON/OFF  
ON/OFF  
OFF  
OFF  
-
-
OFF: The work clamp/button clamp can rise automatically during a  
pause (split program).  
Time after the work clamp/button clamp drops until the upper shaft  
starts rotating  
0 3000  
060  
070  
0
1
10  
1
(ms)  
Type of foot switch used  
1: Foot switch  
2: 2-pedal foot switch (option)  
1 2  
1 2  
Foot switch operating mode  
* Enabled when No. 070 is set to “1”. (Refer to page 22.)  
1: (1st step) Drop Æ (2nd step) Start  
071  
1
1
2: (1st step) Drop to intermediate height Æ (2nd step) Drop and start  
2-pedal foot switch operating mode  
* Enabled when No. 070 is set to “2”. (Refer to page 23.)  
1: (Work clamp switch 1st step) Drop, (Start switch) Start  
2: (Work clamp switch 1st step) Drop to intermediate height Æ (Work  
clamp switch 2nd step) Drop, (Start switch) Start  
3: (While work clamp switch depressed to 1st step) Work clamp/button  
clamp rises, (Start switch) Start  
072  
1
1
1 5  
4: (Work clamp switch 1st step) Drop Æ (Work clamp switch 2nd step)  
Start  
5: (Work clamp switch 1st step) Drop to intermediate height Æ (Work  
clamp switch 2nd step) Drop and start  
KE-430F, BE-438F  
10  
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4. FUNCTION SETTINGS  
Sewing machine motor settings (100 199)  
Initial  
value  
No.  
Setting range  
Setting units  
Setting details  
Slow start pattern setting method  
ON: Follows the slow start patterns for each program.  
(Refer to “5-2. Program setting method” in the CD Instruction  
Manual.)  
100  
ON/OFF  
ON  
-
OFF: The sewing speed for the first 1 - 5 stitches is set by  
memory switch Nos. 151 – 155.  
Highest needle position stop  
ON: When the upper shaft stops, the motor operates in  
reverse to return the needle bar close to its highest  
position.  
NOTE:  
When the motor operates in reverse to raise the  
needle, the thread take-up will stop at a position  
which is lower than its normal stopping position. As a  
result, the thread take-up will rise slightly at the  
sewing start. This may result in the thread pulling out  
under certain conditions.  
150  
ON/OFF  
OFF  
-
OFF: Disabled  
430F: 200 3200  
(sti/min)  
438F: 200 2700  
(sti/min)  
430F: 200 3200  
(sti/min)  
438F: 200 2700  
(sti/min)  
430F: 200 3200  
(sti/min)  
438F: 200 2700  
(sti/min)  
430F: 200 3200  
(sti/min)  
438F: 200 2700  
(sti/min)  
430F: 200 3200  
(sti/min)  
438F: 200 2700  
(sti/min)  
430F: 400 3200  
(sti/min)  
438F: 400 2700  
(sti/min)  
430F: 400 3200  
(sti/min)  
438F: 400 2700  
(sti/min)  
430F: 400 3200  
(sti/min)  
438F: 400 2700  
(sti/min)  
1st stitch sewing speed at the sewing start  
* Enabled when No. 100 is set to “OFF”.  
151  
152  
153  
154  
155  
156  
157  
158  
159  
*1  
*1  
*1  
*1  
*1  
*1  
*1  
*1  
*1  
100  
100  
100  
100  
100  
100  
100  
100  
100  
2nd stitch sewing speed at the sewing start  
* Enabled when No. 100 is set to “OFF”.  
3rd stitch sewing speed at the sewing start  
* Enabled when No. 100 is set to “OFF”.  
4th stitch sewing speed at the sewing start  
* Enabled when No. 100 is set to “OFF”.  
5th stitch sewing speed at the sewing start  
* Enabled when No. 100 is set to “OFF”.  
Sewing speed for 5th stitch before the sewing end  
Sewing speed for 4th stitch before the sewing end  
Sewing speed for 3rd stitch before the sewing end  
Sewing speed for 2nd stitch before the sewing end  
430F: 400 3200  
(sti/min)  
438F: 400 2700  
(sti/min)  
*1: The initial value will vary depending on the specifications. (Refer to “Initial values for each application” on the following  
page.)  
KE-430F, BE-438F  
11  
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4. FUNCTION SETTINGS  
Initial values for each application  
No.  
151  
152  
153  
154  
155  
156  
157  
158  
159  
KE-430F-03  
800  
KE-430F-05  
1500  
KE-430F-0K  
400  
KE-430F-0F  
800  
BE-438F  
400  
1200  
2000  
800  
1200  
400  
2500  
2500  
1200  
2500  
3200  
3200  
3200  
3200  
2400  
2500  
600  
3200  
3200  
3200  
900  
3200  
3200  
3200  
2700  
2700  
2700  
2700  
2700  
3200  
3200  
3200  
3200  
3200  
3200  
3200  
3200  
3200  
2400  
2700  
2400  
Initial  
value  
No.  
161  
Setting range  
Setting units  
Setting details  
Effective hammer operation when needle does not pierce  
ON: Enabled  
ON/OFF  
OFF  
-
OFF: Disabled  
Regulation of sewing speed changes due to sewing pitch  
changes  
ON: Restricted (Speed is fixed at the minimum sewing speed  
for the maximum pitch of the sewing data.)  
* Set to ON if there may be a problem with sewing  
speed changes as a result of pitch changes.  
OFF: Not restricted (Sewing speed varies depending on  
sewing pitch of the sewing data.)  
162  
ON/OFF  
OFF  
-
430F: 1200 3200  
(sti/min)  
438F: 1200 2700  
(sti/min)  
3200  
2700  
Sewing speed limit value  
* When setting the sewing speed, the speed will be limited by  
this value.  
163  
164  
100  
-
Thread trimming operation prevention  
ON: All thread trimming operations are disabled.  
OFF: Thread trimming is carried out in accordance with the  
sewing data.  
ON/OFF  
OFF  
Stop position at highest needle position stop  
: Becomes higher  
-20 20  
165  
166  
167  
0
1
10  
-
(degrees)  
+: Becomes lower  
Delay time until reverse operation starts during highest needle  
position stop operation  
10 500  
(ms)  
150  
OFF  
Servo lock operation  
ON: Used  
ON/OFF  
OFF: Not used  
Servo lock timer setting  
* Enabled when No. 167 is set to “ON”.  
OFF: No timer operation  
1 to 120: Timer operation (1 to 120 secs.)  
OFF, 1 120  
168  
169  
170  
OFF  
45  
1
1
(seconds)  
Servo lock release rotation angle  
* Enabled when No. 167 is set to “ON”.  
30 89  
(degrees)  
430F: 0 2800  
(sti/min)  
438F: 0 2300  
(sti/min)  
Lowers the allowable speed for the sewing pitch by the  
amount set.  
However, the minimum allowable speed value is 400 sti/min.  
0
100  
Automatic needle lifter operation  
ON: If the needle bar is not at the needle up stop position  
during work clamp/button clamp home position detection,  
it moves automatically to the needle up stop position.  
OFF: An “UP” error is displayed without the needle bar moving  
automatically.  
171  
ON/OFF  
ON  
-
(No. 655 can also be used to ignore this sensor.)  
KE-430F, BE-438F  
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4. FUNCTION SETTINGS  
Feed settings (200 299)  
No.  
Setting range Initial value Setting units  
Setting details  
Single stitch test feed  
ON: During test feeding, the mechanism moves one stitch at a time  
when the foot switch is depressed to the 2nd step (for a  
2-pedal foot switch, when the start switch is depressed).  
In addition, when the test indicator is illuminated, test feeding  
will move forward one stitch at a time when the machine pulley  
is turned by hand.  
OFF: During test feeding, sewing starts and automatically  
continues to the last stitch when the foot switch is  
depressed to the 2nd step (for a 2-pedal foot switch, when  
the start switch is depressed).  
430F:OFF  
200  
ON/OFF  
-
438F:ON  
Home position detection at the sewing end  
ON: At the sewing end, the work clamp/button clamp will detect the  
home position and then move to the sewing start position.  
OFF: At the sewing end, the work clamp/button clamp will move to  
the sewing start position.  
Feeding speed  
1: 100 mm/s (Slow)  
2: 200 mm/s  
250  
251  
ON/OFF  
OFF  
-
3
1
1 5  
3: 300 mm/s  
4: 400 mm/s  
5: 500 mm/s (Fast)  
High-speed test feed method  
* Enabled when No. 200 is set to “OFF”.  
ON: High-speed feeding starts at the same time test feeding starts.  
OFF: Normally slow, but becomes faster when the foot switch is  
depressed to the 1st step (for a two-pedal foot switch, when  
the work clamp switch is depressed).  
252  
ON/OFF  
OFF  
-
Moving method to the sewing start point  
0: Depress the foot switch to the 2nd step (for a two-pedal foot  
switch, depress the start switch) while the program number is  
flashing.  
1: Press the RESET key while the program number is flashing.  
2: Press the special external input switch (option input (IN3)) while  
the program number is flashing.  
253  
*1  
0
1
0 2  
Changes the overall feed timing  
: Feed timing becomes earlier.  
+: Feed timing becomes later.  
Changes the feed timing for the 1st stitch at the sewing start  
: Feed timing becomes earlier.  
+: Feed timing becomes later.  
Changes the feed timing for the 2nd stitch at the sewing start  
: Feed timing becomes earlier.  
+: Feed timing becomes later.  
Changes the feed timing for the 3rd stitch at the sewing start  
: Feed timing becomes earlier.  
+: Feed timing becomes later.  
Changes the feed timing for the 3rd stitch before the sewing end  
: Feed timing becomes earlier.  
+: Feed timing becomes later.  
Changes the feed timing for the 2nd stitch before the sewing end  
: Feed timing becomes earlier.  
+: Feed timing becomes later.  
Changes the feed timing for the 1st stitch before the sewing end  
: Feed timing becomes earlier.  
+: Feed timing becomes later.  
-80 80  
260  
261  
262  
263  
264  
265  
266  
*2  
*2  
*2  
*2  
*2  
*2  
*2  
1
1
1
1
1
1
1
(degrees)  
-80 80  
(degrees)  
-80 80  
(degrees)  
-80 80  
(degrees)  
-80 80  
(degrees)  
-80 80  
(degrees)  
-80 80  
(degrees)  
*1: This is not initialized during initialization mode.  
*2: The initial value will vary depending on the specifications. (Refer to “Initial values for each application” on the following  
page.)  
KE-430F, BE-438F  
13  
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4. FUNCTION SETTINGS  
Initial values for each application  
No.  
260  
261  
262  
263  
264  
265  
266  
KE-430F-03  
KE-430F-05  
KE-430F-0K  
KE-430F-0F  
BE-438F  
10  
-15  
45  
45  
45  
0
-15  
50  
45  
45  
25  
35  
0
-15  
45  
45  
45  
0
-15  
45  
45  
45  
0
-80  
-50  
-50  
0
35  
35  
35  
35  
35  
35  
15  
15  
Initial  
value  
No.  
267  
Setting range  
Setting units  
Setting details  
If the overall feed timing (setting No. 260) has been changed  
from the default value, this specifies the effective number of  
stitches.  
OFF, 1 99  
(stitches)  
OFF: No limit  
OFF  
1
1
1 to 99: When the specified number of stitches from the  
sewing start is exceeded, the feed timing returns to  
the standard timing.  
Changes the overall feed timing reference.  
0: [Feed start reference] Makes the timing uniform at the start  
of feed.  
1: [Needle up reference] Changes the timing at the start of  
feed so that the feed moves half the feed width when the  
needle bar is at its highest position.  
2: [Feed end reference] Makes the timing uniform at the end  
of feed.  
Changes the feed timing reference for the first three stitches at  
the sewing start.  
0: [Feed start reference] Makes the timing uniform at the start  
of feed.  
1: [Needle up reference] Changes the timing at the start of  
feed so that the feed moves half the feed width when the  
needle bar is at its highest position.  
268  
269  
1
0 2  
430F: 0  
438F: 1  
1
0 2  
2: [Feed end reference] Makes the timing uniform at the end  
of feed.  
Moving method to the sewing start point after the program is  
changed  
* However, operation for the "0" setting is always carried out  
when No. 273 is set to ON.  
0: Moves to sewing start position and then stops.  
2: Home position detection is carried out, then moves to the  
sewing start position and stops.  
Work clamp/button clamp standby position  
ON: For the 430F, the center of the sewing area is the standby  
position (escape point).  
270  
271  
2
2
-
0 2  
ON/OFF  
OFF  
For the 438F, the front is the standby position (escape  
point).  
OFF: The sewing start position becomes the standby position.  
Reduced feed noise  
272  
273  
ON/OFF  
ON/OFF  
OFF  
OFF  
-
-
ON: Enable (Operating speed is limited to 2500 sti/min.)  
OFF: Disable  
Start switch operation after program is changed  
ON: Moves to sewing start position and starts (program No.  
illuminates)  
OFF: Only moves to sewing start position (program No.  
flashes)  
KE-430F, BE-438F  
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4. FUNCTION SETTINGS  
Operation panel settings (300 399)  
No.  
Setting range  
Initial value Setting units  
Setting details  
Production counter display  
300  
ON/OFF  
OFF  
OFF  
OFF  
-
-
-
ON: Production counter display  
OFF: Lower thread counter display  
Production counter counting units  
ON: Counted for each cycle program.  
OFF: Counted for each item of sewing data.  
* Counted for each individual split when No. 451 is set to  
“ON”.  
Lower thread counter counting operation  
ON: Counted at the sewing start.  
OFF: Counted at the sewing end.  
352  
353  
ON/OFF  
ON/OFF  
Program settings (400 499)  
No.  
Setting range  
Initial value Setting units  
Setting details  
Button hole distance display  
* Enabled when No. 402 is set to “ON” and (for the BE-438F)  
when pattern No. 1 to 64 (buttonhole data) is selected.  
ON: X-scale and Y-scale will be displayed as button hole  
distances (mm).  
OFF: X-scale and Y-scale will be displayed as pattern outer  
dimensions (mm).  
401  
ON/OFF  
OFF  
OFF  
-
-
X-scale/Y-scale mm display  
* The mm display may vary from actual sewing dimensions.  
ON: Displayed as mm.  
402  
404  
ON/OFF  
ON/OFF  
OFF: Displayed as %.  
Display for program numbers 1 to 89 (1 to 64 for BE-438F)  
ON: Program numbers 1 to 89 (1 to 64 for the BE-438F) are  
displayed during program number selection operations.  
OFF: Program numbers 1 to 89 (1 to 64 for the BE-438F) are  
skipped during program number selection operations so  
that these numbers cannot be selected.  
* If no other programs have been recorded, the setting will  
return to “ON”.  
Cycle program No. display (C01 to C30)  
ON: Cycle program numbers are displayed during program  
number selection operations.  
OFF: Cycle program numbers are skipped during program  
number selection operations so that these numbers  
cannot be selected.  
ON  
ON  
-
-
405  
ON/OFF  
Program numbers switched by F keys  
0: When the F1 to F4 keys are pressed, operation switches to  
program numbers 1 to 4.  
1: When the F1 to F4 keys are pressed, operation switches to  
program numbers 201 to 204.  
2: When the F1 to F4 keys are pressed, operation switches to  
cycle program numbers C01 to C04.  
3: When the F1 to F4 keys are pressed, operation switches to  
the program number which has been pre-assigned to the  
respective key.  
406  
0
1
0 3  
Assignment to F1 key: Memory switch No. 407  
Assignment to F2 key: Memory switch No. 408  
Assignment to F3 key: Memory switch No. 409  
Assignment to F4 key: Memory switch No. 410  
KE-430F, BE-438F  
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4. FUNCTION SETTINGS  
No.  
407  
Setting range  
1 999,  
C01 C30  
1 999,  
C01 C30  
1 999,  
C01 C30  
1 999,  
Initial value Setting units  
Setting details  
Program No. assigned to the F1 key  
* Enabled when No. 406 is set to “3”.  
Program No. assigned to the F2 key  
* Enabled when No. 406 is set to “3”.  
Program No. assigned to the F3 key  
* Enabled when No. 406 is set to “3”.  
Program No. assigned to the F4 key  
1
2
3
4
-
-
-
-
408  
409  
410  
C01 C30  
* Enabled when No. 406 is set to “3”.  
Split mode selection  
451  
ON/OFF  
OFF  
-
ON: Independent split mode  
OFF: Continuous split mode  
430F: 40.0  
438F: 6.4  
430F: 40.0  
438F: 6.4  
0.0 40.0  
460  
461  
0.1  
0.1  
X direction sewing area limitation  
Y direction sewing area limitation  
(mm)  
0.0 30.0  
(mm)  
Enlargement/reduction reference point  
0: Center of sewing frame  
1: Sewing start point  
2: Center of pattern  
3: Front of pattern center  
4: Back of pattern center  
5: Back-left corner of sewing area  
6: Front-left corner of sewing area  
7: Back-right corner of sewing area  
8: Front-right corner of sewing area  
Enlargement/reduction of bar tacking  
ON: Bar tacking stitch lengths (pitch less than approx. 1 mm)  
are also enlarged or reduced.  
462  
463  
0
1
0 8  
ON/OFF  
OFF  
-
OFF: Bar tacking stitch lengths (pitch less than approx. 1 mm)  
are not enlarged or reduced.  
Setting parallel movement amount for sewing pattern  
1: The parallel movement amount for the currently-selected  
program can be set in parallel movement mode.  
The movement amount is initialized when the power is  
turned off and when the program number, pattern number,  
X-scale or Y-scale is changed.  
2: The parallel movement amount for the currently-selected  
program can be set in parallel movement mode.  
The movement amount is retained when the power is  
turned off, but is initialized when the program number,  
pattern number, X-scale or Y-scale is changed.  
3: The movement amount can be set for each program using  
parameters.  
465  
1
1
1 3  
The movement amount is retained when the power is  
turned off and when the program number, X-scale or  
Y-scale is changed, but is initialized when the pattern  
number is changed.  
Tension value setting  
ON: A common tension value is set for all programs.  
* Uniform correction operations are not possible.  
OFF: Set separately for each program.  
Work clamp/button clamp height setting for each program  
ON: Work clamp/button clamp height is set separately for each  
program.  
469  
470  
471  
ON/OFF  
ON/OFF  
OFF  
OFF  
-
-
OFF: A common work clamp/button clamp height is set for all  
programs.  
* The work clamp/button clamp height is set by Nos. 471  
and 472.  
430F: 10 17  
(mm)  
438F: 6 13  
(mm)  
14  
10  
Work clamp/button clamp raise position setting  
* Enabled when No. 470 is set to “OFF”.  
1
KE-430F, BE-438F  
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16  
4. FUNCTION SETTINGS  
No.  
472  
Setting range  
430F: 1 17  
(mm)  
438F: 1 13  
(mm)  
Initial value Setting units  
Setting details  
Work clamp/button clamp intermediate drop position setting  
* Enabled when No. 470 is set to “OFF”.  
1
1
<Work clamp lifting height>  
* When memory switch No. 470 is set to “ON”, the following parameters are displayed during program mode and sewing  
standby mode.  
Setting range  
Item  
Display during program mode  
Display during sewing standby mode  
and initial value  
430F:  
10 17mm  
438F:  
6 13mm  
Setting units: 1mm  
Work  
clamp/button  
clamp height  
(raised)  
(Initial settings are:  
430F: 14mm,  
438F: 10mm)  
For example,  
initial value for  
430F  
2780B  
2781B  
430F:  
1 17mm  
438F:  
1 13mm  
Setting units: 1mm  
Work  
clamp/button  
clamp height  
(intermediate  
drop)  
(Initial setting is 1mm)  
* This is displayed  
when memory switch  
No. 071 is set to “2”  
or when memory  
switch No. 072 is set  
to “2” or “5”.  
Initial value  
2782B  
2783B  
KE-430F, BE-438F  
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17  
4. FUNCTION SETTINGS  
<X and Y parallel movement amounts>  
* When memory switch No. 465 is set to “3”, the following parameters are displayed during program mode and sewing  
standby mode.  
Setting range  
and initial value  
Item  
Display during program mode  
Display during sewing standby mode  
-9.9 9.9mm  
Setting units: 0.1mm  
(Initial setting is 0.0mm)  
+ direction:  
X
parallel  
Work clamp/button  
clamp moves to  
the left.  
movement  
amount  
Initial value  
2784B  
2785B  
-9.9 9.9mm  
Setting units: 0.1mm  
(Initial setting is 0.0mm)  
+ direction:  
Y
parallel  
Work clamp/button  
clamp  
forward.  
movement  
amount  
moves  
Initial value  
2786B  
2787B  
KE-430F, BE-438F  
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18  
4. FUNCTION SETTINGS  
Device settings (500 599)  
No.  
Setting range  
Initial value  
OFF  
Setting units  
Setting details  
Thread nipper operation  
ON: Used  
* However, all of the following conditions must be  
satisfied.  
500  
ON/OFF  
-
Memory switch No. 100 = ON  
Memory switch No. 566 = ON  
Slow start speed is Lo8 or Lo9  
Sewing speed is 1500 sti/min. or more  
OFF: Not used  
Output continue time for needle cooler device when sewing  
machine is stopped  
OFF: Needle cooler device is not used  
OFF,  
100 2000  
(ms)  
550  
551  
OFF  
100  
1
100 to 2000: Output is continued for the specified time.  
430F-03:OFF  
430F-05:1  
430F-0K:OFF  
430F-0F:OFF  
438F:OFF  
Upper thread tension release at the sewing start  
* Only enabled when the thread nipper is not operating.  
OFF: Not released  
OFF, 1 3  
(stitches)  
1 to 3: Released during the specified number of stitches.  
Use of the thread breakage sensor (available by special order)  
ON: Used  
OFF: Not used  
Sewing start sensing sensitivity for thread breakage sensor  
(available by special order)  
ON: 10 stitches at sewing start  
OFF: 5 stitches at sewing start  
Thread nipper device installation  
ON: Installed  
554  
*1  
ON/OFF  
ON/OFF  
OFF  
-
-
555  
*1  
OFF  
430F-03:ON  
430F-05:OFF  
430F-0K:ON  
430F-0F:ON  
438F:OFF  
* The thread nipper device only operates when all of the  
following conditions are satisfied.  
Memory switch No. 100 = ON  
Memory switch No. 500 = ON  
Slow start speed is Lo8 or Lo9  
Sewing speed is 1500 sti/min. or more  
566  
*2  
ON/OFF  
ON/OFF  
-
-
OFF: Not installed  
NOTE:  
If the thread nipper device is installed, do not set this to  
“OFF”. If this is not observed, damage may occur.  
Upper thread tension during feeding while upper shaft is  
stopped  
ON: Not released  
OFF: Released  
567  
OFF  
-80 115  
580  
581  
0
0
5
5
Nip timing offset for thread nipper device  
(degrees)  
-160 110  
(degrees)  
Release timing offset for thread nipper device  
*1: These functions can be used if the main PCB version is 1.5.00 or later.  
*2: This is not initialized during initialization mode.  
KE-430F, BE-438F  
19  
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4. FUNCTION SETTINGS  
No.  
582  
Setting range  
ON/OFF  
Initial value  
ON  
Setting units  
1
Setting details  
Upper thread tension tightening at the sewing start  
ON: Enabled  
OFF: Disabled  
Upper thread tension change (tightening) angle offset at the  
sewing start  
-150 150  
583  
584  
585  
587  
588  
589  
590  
591  
592  
593  
594  
0
0
5
5
(degrees)  
-110 40  
(degrees)  
Upper thread tension release angle offset at the sewing end  
Upper thread tension value (tightening) at the sewing start  
Upper thread tension value (release) at the sewing start  
Thread trimmer solenoid ON timing  
470  
0
1
0 500  
0 300  
1
0 50  
(ms)  
35  
20  
5
1
0 50  
(ms)  
1
Thread trimmer solenoid ON time  
1
Thread trimmer solenoid holding force  
5 10  
430F: 270  
438F: 260  
0 300  
(degrees)  
5
Specified final speed output angle offset  
200 700  
(sti/min)  
600  
8
100  
1
Last stitch sewing speed for upper shaft motor  
Speed change delay until thread nipper operation is complete  
* If the thread nipper device is not to operate, set to “0”.  
0 15  
(ms)  
-160 20  
(degrees)  
0
5
Needle up stop signal output angle offset  
Error processing settings (600 699)  
Initial  
value  
No.  
Setting range  
Setting units  
1
Setting details  
Error release method when operation has stopped  
0: Press the RESET key on the operation panel.  
1: Press the STOP switch (available by special order).  
2: Press the external input switch (EXIN2).  
Needle stop position when sewing is interrupted by the STOP  
switch (available by special order)  
ON: Needle stops in the up position.  
OFF: Needle stops in the down position.  
Thread trimming operation when sewing is paused  
ON: Thread trimming is not carried out when the pause is  
canceled.  
650  
*1  
*2  
0
0 2  
651  
*2  
ON/OFF  
ON/OFF  
OFF  
-
-
652  
*2  
OFF  
OFF: Thread trimming is carried out when the pause is  
canceled.  
Use of STOP switch (available by special order)  
ON: Used  
OFF: Not used  
Disables needle up stop position monitoring.  
ON: Disabled  
OFF: Enabled (If the needle up stop position is incorrect, “UP”  
will be displayed.)  
Time from error occurring to buzzer stopping  
OFF: Buzzer does not stop.  
2 – 30: Buzzer stops after the specified time.  
654  
*2  
ON/OFF  
ON/OFF  
OFF  
OFF  
OFF  
-
-
655  
657  
OFF, 2 30  
(seconds)  
2
*1: This is not initialized during initialization mode.  
*2: These functions can be used if the main PCB version is 1.5.00 or later.  
KE-430F, BE-438F  
20  
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4. FUNCTION SETTINGS  
Maintenance settings (700 799)  
Initial  
value  
No.  
Setting range  
Setting units  
Setting details  
Continuous operation mode (for administrator)  
ON: Continuous operation is repeated while the foot switch is  
being depressed to the 2nd step (for a 2-pedal foot  
switch, while the start switch is being depressed).  
NOTE:  
750  
ON/OFF  
OFF  
-
This setting is for use by an administrator in test  
running mode. It is dangerous to set it to “ON” for  
normal sewing, so it should always be set back to  
“OFF” after use.  
OFF: Disabled  
Continuous operation cycle time adjustment timer (for  
administrator)  
* Enabled when No. 750 is set to “ON”.  
0 3000  
751  
752  
200  
0
10  
1
(ms)  
Sewing machine ID code (for specifying SD card folder)  
Thread winding speed limit  
0 99  
ON: Upper limit is limited to 2000 sti/min.  
* If the speed specified at the operation panel exceeds  
2000 sti/min, thread winding will be limited to 2000  
sti/min.  
756  
ON/OFF  
ON  
-
OFF: Upper limit is not limited to 2000 sti/min.  
* Thread winding is carried out at the speed specified at  
the operation panel.  
Specification and destination settings (800 899)  
Initial  
value  
No.  
Setting range  
Setting units  
Setting details  
430F-03: 3, 5, K, F  
430F-05: 3, 5, K, F  
430F-0K: 3, 5, K, F  
430F-0F: 3, 5, K, F  
438F-03: 3  
3
Specification code setting  
* The 438F has only -03 specifications.  
3: -03 specifications (medium-weight material)  
5: -05 specifications (heavy-weight material)  
K: -0K specifications (knitted wear)  
5
K
F
3
850  
*1  
-
F: -0F specifications (foundation garments)  
*1: This is not initialized during initialization mode.  
Unique settings for each model (900 999)  
Initial  
value  
No.  
Setting range  
Setting units  
1
Setting details  
Eyelet bar tack closing device (old 432 series)  
OFF: Disable  
1: Eyelet bar tacker closing device operates after the work  
951  
OFF  
OFF, 1 2  
clamp has dropped.  
2: Eyelet bar tack closing device operates at the sewing start.  
KE-430F, BE-438F  
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21  
4. FUNCTION SETTINGS  
4-5. Setting the foot switch operation mode  
When using a foot switch  
The following table describes the operation of the work clamp/button clamp during sewing standby mode when using the foot  
switch.  
Neutral  
1st step  
2nd step  
4441Q  
1. Set memory switch No. 070 to “1”.  
2. Use memory switch No. 071 to select the desired operation mode from the following.  
* In the following table, the term “work clamp” refers to the work clamp/button clamp.  
Foot switch  
Neutral  
1st step  
1st step  
2nd step  
Setting  
value  
No. 071  
Depress  
1st step  
2nd step  
Neutral  
Depressed further  
Release  
Work clamp  
maximum drop  
Sewing machine  
start  
1
2
Work clamp raised  
Work clamp raised  
Work clamp  
maximum drop +  
sewing machine  
start  
Work clamp  
intermediate drop  
2984B 2985B  
KE-430F, BE-438F  
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22  
4. FUNCTION SETTINGS  
When using a 2-pedal foot switch (option)  
The following table describes the operation of the work clamp/button clamp during sewing standby mode when using a  
2-pedal foot switch.  
Work clamp switch (2-step)  
Start switch  
4923Q  
1. Set memory switch No. 070 to “2”.  
2. Use memory switch No. 072 to select the desired operation mode from the following.  
* In the following table, the term “work clamp” refers to the work clamp/button clamp.  
Work clamp switch (left side)  
1st step  
Neutral  
1st step  
Setting  
value  
Start switch  
(right side)  
2nd step  
No. 072  
Depress  
Release  
Depressed further  
Release slightly  
1st step  
2nd step  
Neutral  
Work clamp raised  
Work clamp  
maximum drop  
Sewing  
machine  
start *1  
Work clamp  
maximum drop  
1
1
*
Work clamp  
raised  
Work clamp raised  
Work clamp  
intermediate drop  
Work clamp raised  
Work clamp  
intermediate drop  
Sewing  
machine  
start *1  
Work clamp  
maximum drop  
2
Work clamp  
Work clamp  
maximum drop  
1
maximum drop  
*
Work clamp raised  
Work clamp  
raised  
Sewing  
machine  
start *1  
Work clamp  
maximum drop  
Work clamp  
raised  
1
3
4
5
*
Work clamp  
maximum drop  
Sewing  
machine start  
Work clamp raised  
Work clamp raised  
Work clamp  
maximum drop  
+ sewing  
Work clamp  
intermediate  
drop  
machine start  
*1 Enabled when the work clamp switch is at neutral and the work clamp/button clamp is fully lowered.  
2986B 2987B  
KE-430F, BE-438F  
23  
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4. FUNCTION SETTINGS  
4-6. Checking the error history  
The past error history can be checked by the following procedure.  
2617B  
1. While pressing the  
key (1), turn on the power switch.  
The error history number will appear in the PROGRAM No. display (2) and the error code will appear in the menu display  
(3).  
NOTE:  
E025, E035, E065, E705 and error codes which can be reset do not remain in the error history, and so they will not be  
displayed.  
2. Press the  
or  
key (4) to change the order of the error history number.  
The history stores 99 entries (01 to 99) in order starting from the most recent. No. 01 is the most recent entry. (If there are  
no error codes, “E---“ will be displayed.  
The production counter when the error occurred will appear in the PROGRAM No. display (2) and the menu display (3) in  
units of 100 stitches while the  
key (6) is being pressed.  
3. Press the TEST key (5) to return to the normal display. The sewing machine will switch to home position detection  
standby.  
KE-430F, BE-438F  
24  
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4. FUNCTION SETTINGS  
4-7. Input checking method  
This is used at the following times.  
When you would like to check for problems with the operation panel  
When you would like to check for broken cords  
When you would like to adjust a sensor position  
This lets you check if the CPU is reading signals from the keys and the sensors correctly.  
2618B  
1. While pressing the  
key (1), turn on the power switch.  
The item number will appear in the PROGRAM No. display (2), the item name will appear in the tension display (3), and  
the input status will appear in the menu display (4).  
2. Press the  
key (1) or the  
key (5) to select the desired item number.  
3. Refer to the input check list to check the key and sensor responses.  
4. When returning to normal operation, turn power off and then on again.  
< Input check list >  
Item No.  
Item name  
Input status  
on] / [ oFF]  
Check items and checking methods  
X-feed motor home position sensor position  
Move the work clamp/button clamp manually in the X direction.  
Left = ON, right = OFF.  
X-feed motor encoder counter value  
Move the work clamp/button clamp manually in the X direction.  
[
[
1]  
2]  
[orX]  
[
[EnX]  
[-999] [ 999]  
Right = down, and left = up.  
* When the power is turned on, the position will be “0”.  
Y-feed motor home position sensor position  
Move the work clamp/button clamp manually in the Y direction.  
Back = ON, and forward = OFF.  
Y-feed motor encoder counter value  
Move the work clamp/button clamp manually in the Y direction.  
* Back = down, and forward = up.  
[
[
3]  
4]  
[orY]  
[
on] / [ oFF]  
[EnY]  
[-999] [ 999]  
* When the power is turned on, the position will be “0”.  
KE-430F, BE-438F  
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25  
4. FUNCTION SETTINGS  
Item No.  
Item name  
Input status  
on] / [ oFF]  
Check items and checking methods  
Work clamp motor home position sensor position  
Remove the side cover and raise the work clamp/button clamp  
[
5]  
[orP]  
[
manually.  
* ON when raised, OFF when lowered.  
Work clamp motor encoder counter value  
Remove the side cover and raise the work clamp/button clamp  
manually.  
* Back = down, and forward = up.  
* When the power is turned on, the position will be “0”.  
Upper shaft 360 rotation segment signal  
Turn the pulley by hand.  
* The forward direction (the direction of the arrow) = up.  
Needle up signal  
Turn the pulley by hand.  
* ON in the needle up region, OFF in any other region.  
Shows the input voltage.  
Operation panel key input check  
The key name will be displayed while a key is pressed.  
Key name  
[
[
6]  
7]  
[EnP]  
[-999] [ 999]  
[ 000] [ 359]  
[dEG]  
[ UP]  
[
[
8]  
9]  
[
on] / [ oFF]  
[voL]  
[PnL]  
[ ***]  
[ 10]  
[*] / [ oFF]  
* ON display  
[rESt]  
RESET key  
[tESt]  
TEST key  
[tHrE]  
THREAD/CLAMP key  
[ tEn]  
TENSION key  
[SELE]  
[UP-M]  
[dn-M]  
[UP-S]  
[dn-S]  
[UP-t]  
SELECT key  
key  
key  
SECTION + key  
SECTION - key  
TENSION + key  
[dn-t]  
TENSION - key  
[
[
[
[
F1]  
F2]  
F3]  
F4]  
Function key F1  
Function key F2  
Function key F3  
Function key F4  
[ Ent]  
ENTER key  
Foot switch analog value  
Depress the foot switch.  
* When depressed forward, the value increases.  
* Should normally display somewhere around 102 when at the  
neutral position.  
Foot switch signal  
bAck: Depressed backward  
oFFNeutral  
CLnP1st step (Work clamp signal)  
[ 11]  
[ 12]  
[FtA]  
[FtS]  
[
0] [ 255]  
[bAck] / [oFF] /  
[CLnp] / [Strt]  
Strt2nd step (Start signal)  
Work clamp switch 1st step for 2-step foot switch  
Depress the work clamp switch to the 1st step.  
Work clamp switch 2nd step for 2-step foot switch  
Depress the work clamp switch to the 2nd step.  
Start switch for 2-step foot switch  
[ 13]  
[ 14]  
[ 15]  
[CL1]  
[CL2]  
[Stt]  
[
[
[
on] / [ oFF]  
on] / [ oFF]  
on] / [ oFF]  
Depress the start switch.  
KE-430F, BE-438F  
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26  
4. FUNCTION SETTINGS  
Item No.  
[ 16]  
Item name  
[EMC]  
Input status  
no] /  
[ oFF] / [ on]  
Check items and checking methods  
Stop switch (option)  
* [ no] is displayed when not connected.  
[
Machine head switch  
[ oFF] is displayed when the machine head is tilted back.  
Thread nipper home position sensor  
[ 17]  
[HEd]  
[
on] / [ oFF]  
Press the  
direction.  
Press the  
direction.  
key to move the thread nipper in the home position  
[ 18]  
[orn]  
[
on] / [ oFF]  
key to move the thread nipper in the retract  
* [ on] is displayed for the retract direction.  
Thread nipper motor encoder counter value  
Press the  
direction.  
Press the  
direction.  
key to move the thread nipper in the home position  
key to move the thread nipper in the retract  
[ 19]  
[Enn]  
[-999] [ 999]  
* Retract direction = down, home direction = up  
* When the power is turned on, the position will be “0”.  
Option input (IN1)  
Option input (IN2)  
Option input (IN3)  
Option input (IN4)  
Option input (IN5)  
Option input (IN6)  
Option input (IN7)  
[ 20]  
[ 21]  
[ 22]  
[ 23]  
[ 24]  
[ 25]  
[ 26]  
[ 27]  
[ 28]  
[ 29]  
[in1]  
[in2]  
[in3]  
[in4]  
[in5]  
[in6]  
[in7]  
[in8]  
[in9]  
[i10]  
[
[
[
[
[
[
[
[
[
[
on] / [ oFF]  
on] / [ oFF]  
on] / [ oFF]  
on] / [ oFF]  
on] / [ oFF]  
on] / [ oFF]  
on] / [ oFF]  
on] / [ oFF]  
on] / [ oFF]  
on] / [ oFF]  
Option input (IN8)  
Option input (IN9)  
Option input (IN10)  
KE-430F, BE-438F  
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27  
4. FUNCTION SETTINGS  
4-8. Output checking method  
This is used at the following times.  
When you would like to check for problems with the operation panel  
When you would like to check for a problem with the drive mechanism  
When you would like to check for broken cords  
You can check whether the signals being output by the CPU are driving the mechanisms correctly.  
2619B  
1. While pressing the  
The item number will appear in the PROGRAM No. display (2), and the item name will appear in the menu display (3).  
2. Press the key (4) or the key (1) to select the desired item number.  
3. For item numbers 51 to 54, press the or key (5) to check the operation.  
* The operation for that check item will be carried out while the key is being pressed.  
key (1), turn on the power switch.  
4. For item numbers 55 onward, depress the foot switch to the 2nd step. (For a 2-pedal foot switch, depress the start  
switch.)  
* The operation for that check item will be carried out while the foot switch is being depressed.  
5. When returning to normal operation, turn power off and then on again.  
Item No.  
[ 51]  
Item name  
Operation  
When the  
When the  
When the  
When the  
When the  
When the  
key is pressed, the work clamp/button clamp will move to the left.  
key is pressed, the work clamp/button clamp will move to the right.  
key is pressed, the work clamp/button clamp will move forward.  
key is pressed, the work clamp/button clamp will move back.  
key is pressed, the work clamp/button clamp will lift.  
key is pressed, the work clamp/button clamp will drop.  
[PMX]  
[ 52]  
[ 53]  
[ 54]  
[PMy]  
[PMP]  
[PMn]  
When you press the  
When you press the  
key, the thread nipper moves toward the home position.  
key, the thread nipper moves toward the retract position.  
KE-430F, BE-438F  
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28  
4. FUNCTION SETTINGS  
Item No.  
[ 55]  
[ 56]  
[ 57]  
[ 58]  
Item name  
[CLr]  
[CLL]  
[Foot]  
Operation  
The valve for the right work clamp turns on. (*)  
The valve for the left work clamp turns on. (*)  
The valve for the stepping foot turns on. (*)  
Inner clamping valve is turned ON (*)  
[FLiP]  
[ 59]  
[CooL]  
Needle cooler valve is turned ON. (*)  
Panel indicators illuminate in sequence, and then the 7-segment display turns on one  
digit at a time.  
[ 60]  
[7SEG]  
Blank Æ 0 Æ 1 Æ 2 . . . . Æ 8 Æ 9 Æ 8. Æ Blank  
Thread trimmer solenoid is turned ON for the specified period.  
Remove the rear cover and check the operation.  
The digital tension solenoid is turned ON for the specified period.  
The external wiper solenoid is turned ON for the specified period. (*)  
Option output 1 turns on. (*)  
Option output 2 turns on. (*)  
Option output 3 turns on. (*)  
Option output 4 turns on.  
Option output 5 turns on.  
Option output 6 turns on.  
Option output 7 turns on.  
Option output 8 turns on.  
Option output 9 turns on.  
Option output 10 turns on.  
Option output 11 turns on.  
Option output 17 turns on.  
Option output 18 turns on.  
[ 61]  
[ CUt]  
[ 62]  
[ 63]  
[ 64]  
[ 65]  
[ 66]  
[ 67]  
[ 68]  
[ 69]  
[ 70]  
[ 71]  
[ 72]  
[ 73]  
[ 74]  
[ 75]  
[ 76]  
[ 77]  
[ 78]  
[dtEn]  
[ WiP]  
[oP 1]  
[oP 2]  
[oP 3]  
[oP 4]  
[oP 5]  
[oP 6]  
[oP 7]  
[oP 8]  
[oP 9]  
[oP10]  
[oP11]  
[oP17]  
[oP18]  
[oP19]  
[oP20]  
Option output 19 turns on.  
Option output 20 turns on.  
* Cannot be used with the KE-430F and BE-438F.  
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4. FUNCTION SETTINGS  
4-9. Confirming software version  
2620B  
1. If you turn on the power while pressing the  
key (1), the software version will be displayed in the menu display (2).  
2. The PROGRAM No. display (4) will change as follows each time the  
or  
key (3) is pressed.  
PROGRAM No. display (4)  
Software  
Main control program  
Motor control program  
Panel control program  
Main IPL  
Menu display (2) example  
[1.Mn]  
[2.Mt]  
[3.PL]  
[4.in]  
[5.it]  
[1.0.00]  
[1.00 ]  
[1.00 ]  
[1.00 ]  
[1.00 ]  
[1.00 ]  
Motor IPL  
Panel IPL  
[6.iL]  
3. Press the TEST key (5) to return to the normal display. The sewing machine will switch to home position detection standby.  
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4. FUNCTION SETTINGS  
4-10. Protection settings  
There are two ways which can be used to switch to protect setting mode: Method A (which does not require an SD card) and  
Method B (which requires an SD card).  
If you want to set up the sewing machine so that these modes cannot be distinguished, it is recommended that you set the  
method to Method B.  
* If using an SD card, read the section titled “7-1. Notes on handling SD cards (commercially available)”.  
Method A  
1. While pressing the RESET key (1) and the TEST key (2) and the ENTER key (3), turn on the power switch.  
* The previous protection level (OFF, 1 to 7) will appear in the menu display (4).  
* The protection level is set to OFF at the time of shipment from the factory.  
2621B  
* If a beeping sound is heard and “ Pr” “diFF” is displayed, it means that the method has been set to method B.  
In this case, start by means of method B. (Refer to the next page.)  
2. Press the  
or  
key (5) to select the protection level.  
Nothing is disallowed.  
Protection level  
OFF  
Details  
1 – 6  
Certain operations are disallowed depending on the protection level.  
* Protected items have been preset for each level. Refer to “Table of protection levels  
and corresponding protected items” on page 33.  
7
You can change the protection setting for each of the 21 items individually.  
* Set to ON (disallowed) or OFF (allowed) for each item.  
* All items are set to OFF at the time of shipment from the factory.  
3. Press the ENTER key (3) to store the protection level.  
* If setting to a protection level other than level 7, proceed to step 4. If setting to level 7, proceed to step 5.  
4. Press the TEST key (2).  
* The display will return to the normal display and the sewing machine will change to home position standby.  
5. The item number will appear in the PROGRAM No. display (6), and the setting (ON/OFF) will appear in the menu display  
(4).  
6. Press the  
7. Press the  
or  
or  
key (7) to select the item number (1 to 21). (Refer to page 33.)  
key (5) to change the setting (ON/OFF).  
8. Press the ENTER key (3) to store the setting (ON/OFF).  
9. Repeat steps 6 to 8 above for each item, and then press the TEST key (2).  
* The protect setting mode will be exited and the sewing machine will change to home position standby.  
* If you would like to return to protection level setting (2 above), press the F1 key (8).  
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4. FUNCTION SETTINGS  
Method B  
Have an SD card ready.  
* The SD card is only used at the step of selecting protect setting mode, so any type of SD card can be used as long as it  
can be accessed. In addition, if making the setting two or more times, a different SD card from the one used before can be  
used.  
1. Insert the SD card, and then while pressing the RESET key (1) and the TEST key (2) and the ENTER key (3), turn on the  
power switch.  
* The previous starting method (A or b) will be displayed in the menu display.  
* The method is set to A at the time of shipment from the factory.  
2622B  
2. Press the  
or  
key (5) to select the next starting method.  
Starting method  
Details  
A
B
Protect setting mode can be started using either Method A or Method B.  
Protect setting mode can only be started using Method B.  
3. Press the ENTER key (3) to store the starting method.  
4. For the method of operation from this point onward, refer to steps 2 to 9 in “Method A” (previous page).  
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4. FUNCTION SETTINGS  
Table of protection levels and corresponding protected items  
× : Operation disallowed  
Level  
Item  
No.  
Protection  
details  
OFF  
7 (Individual settings)  
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
Data  
initialization  
Memory switch  
(Advanced)  
Memory switch  
(Standard)  
<Home position,  
upper  
reference>  
position  
adjustment  
×
×
×
×
×
×
×
1
2
3
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
shaft  
×
4
×
5
6
Program No.  
XY  
enlarge  
change during  
wait (Possible if  
100% or less)  
XY  
enlarge/reduce  
change during  
wait  
×
×
×
7
Sewing speed  
during wait  
×
×
×
×
×
×
×
8
9
Slow  
start  
×
during wait  
Work  
clamp/button  
×
×
×
×
10  
clamp  
height  
during wait  
Tension during  
wait  
×
×
×
11  
12  
Lower  
thread  
counter change  
during wait  
×
Production  
counter  
during wait  
Lower  
counter setting  
mode  
Production  
counter setting  
mode  
clear  
×
×
13  
14  
15  
thread  
×
×
Program setting  
mode  
Cycle program  
setting mode  
×
×
×
×
×
×
×
×
×
×
×
16  
17  
18  
19  
×
Pattern  
data  
×
editing mode  
Data read/write  
mode  
×
Sewing  
after  
start  
pause  
using the STOP  
switch (available  
by special order)  
Parallel  
movement  
mode  
×
20  
21  
×
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33  
5. EDITING PATTERN DATA  
5. EDITING PATTERN DATA  
5-1. Tension information in pattern data  
Tension codes are recorded in the pattern data to provide tension information.  
The tension codes indicate the type of tension (T1 to T9).  
In addition, the units which tension codes are divided into are called sections, and sequential numbers are assigned to them  
starting from the first stitch. Up to a maximum of 99 sections are possible.  
* The tension values for the tension codes are set in program mode for each program.  
Example: Pattern No. 200  
Final stitch  
1st stitch  
28th stitch  
10th stitch  
2nd stitch  
2623B  
Section <1>  
Section <2>  
Section <3>  
Section <4>  
Needle Drop No. <1>  
Tension Code <T1>  
Needle Drop No. <2>  
Tension Code <T6>  
Needle Drop No. <10>  
Tension Code <T4>  
Needle Drop No. <28>  
Tension Code <T1>  
Upper thread tension <75>  
Upper thread tension <125> Upper thread tension <110>  
Upper thread tension <75>  
Example: When sewing program No. 900 into which pattern No. 200 has been programmed  
Example: Editing in pattern editing mode  
Pattern No. 200  
Example: Program mode editing  
Program No. 900  
Needle Drop No.  
1st stitch  
Section No.  
Tension Code  
Pattern No.  
X-scale  
200  
100  
100  
2700  
Lo8  
75  
1
2
3
4
T1  
T6  
T4  
T1  
2nd stitch (to 9th stitch)  
10th stitch (to 27th stitch)  
28th stitch (to final stitch)  
Y-scale  
Sewing speed  
Slow start pattern  
Upper thread tension T1  
Upper thread tension T4  
Upper thread tension T6  
110  
125  
Tension Code  
* Of all the tension codes (T1 to T9), only the  
tension codes which have been programmed  
into pattern No. 200 will be displayed.  
Section  
No.  
Final stitch  
2624B  
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5. EDITING PATTERN DATA  
5-2. Work flowchart  
2922B  
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5. EDITING PATTERN DATA  
5-3. Switching to pattern editing mode  
While pressing the TEST key, press the  
key.  
1
The pattern number will flash in the PROGRAM No.  
display.  
The number of stitches remaining until the final stitch  
will be displayed in the menu display.  
The section number will be displayed in the section  
No. display. “. ” means the start of a section.  
The tension code will be displayed in the tension  
display.  
2626B 2627B  
Press the  
number.  
or  
key to select the desired pattern  
2
* Only the pattern numbers which are currently  
registered will be displayed.  
2628B  
Depress the foot switch to the 2nd step.  
Home position detection will be carried out.  
The pattern number will changed to illuminated.  
3
2nd step  
From this point on, the condition is referred to as pattern  
editing mode.  
4441Q  
5-4. Checking pattern data  
You can check the tension information (section numbers and tension codes) in pattern data.  
Carry out steps 1 to 3 in “5-3. Switching to pattern editing  
mode” to switch to pattern editing mode.  
When you press the or key, the work clamp/button  
1
clamp will move one stitch at a time.  
The section number and tension code and the number  
of stitches remaining until the final stitch are displayed  
at the current position.  
While holding down the SELECT key, press the  
SECTION [+ -] key to automatically move the work  
clamp/button clamp to the beginning of a section.  
+: Moves in the forward direction  
-: Moves in the reverse direction  
2629B 2630B  
End pattern editing mode  
Press the TEST key.  
The display will return to the normal display and the  
sewing machine will change to home position standby.  
2
2404B  
TEST indicator switches off  
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5. EDITING PATTERN DATA  
5-5. Copying pattern data  
Editing (adding, changing or deleting) of the tension codes within pattern data is limited to pattern numbers within the range of  
200 to 999.  
Because of this, if you would like to edit pattern data which has already been registered, you will need to copy the pattern to a  
number that is 200 or higher.  
* If you would like to delete pattern data which has already been registered, this can be done using initialization mode. Refer  
to “6-7. Resetting all settings to their defaults” in the CD Instruction Manual.  
Carry out steps 1 to 3 in “5-3. Switching to pattern editing  
mode” to switch to pattern editing mode.  
1
Press the F1 key and the F4 key at the same time.  
The pattern number which is to be copied will be  
displayed in the PROGRAM No. display.  
“Copy” will be displayed in the menu display.  
“ Pt” will be displayed in the section No. display.  
The pattern number for the copy destination will be  
displayed in the tension display.  
2631B 2632B  
2
Press the TENSION (  
) keys to select the  
pattern number for the copy destination.  
* Only patterns numbers which have not yet been  
recorded will be displayed.  
For example, if copying to  
pattern No. 204.  
2633B  
To do the copying, press the ENTER key.  
The pattern will be copied and the sewing machine will  
then return to pattern editing mode.  
3
or  
If you would like to return to pattern editing mode without  
copying the pattern, press the RESET key.  
2414B 2634B  
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5. EDITING PATTERN DATA  
5-6. Adding tension codes  
<If adding a T5 code at the 5th stitch in section 2>  
Final stitch  
Final stitch  
2639B  
1
Carry out steps 1 to 3 in “5-3. Switching to pattern editing  
mode” to switch to pattern editing mode.  
Press the  
or  
key to move the work clamp/button  
clamp to the desired position.  
* Move it to a position other than the start of the section  
(so that “.” is not displayed).  
2635B 2636B  
2
Press the TENSION (  
desired tension code (T1 to T9).  
) keys to select the  
The tension code will flash.  
For example, tension code T5  
2637B  
To add a tension code, press the ENTER key.  
3
A new tension code will be added and the sewing  
machine will return to pattern editing mode. As well  
as this, a section will be added and the numbers for  
subsequent sections will be incremented by 1.  
or  
If you would like to return to pattern editing mode without  
adding a tension code, press the  
or  
key.  
or  
If you would like to end pattern editing mode without  
adding a tension code, press the TEST key.  
2414B 2638B 2404B  
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5. EDITING PATTERN DATA  
5-7. Changing tension codes  
<If changing T6 to T3 in section 2>  
Final stitch  
Final stitch  
2642B  
1
Carry out steps 1 to 3 in “5-3. Switching to pattern editing  
mode” to switch to pattern editing mode.  
While pressing the SELECT key, press the SECTION  
[+ -] keys. Each time a key is pressed, the work  
clamp/button clamp automatically moves to the start of  
the next or the previous section.  
Move the work clamp/button clamp to the start of the  
section you would like to change.  
2630B 2641B  
2
Press the TENSION (  
desired tension code (T1 to T9).  
) keys to select the  
The tension code will flash.  
For example, change the tension  
code to T3 in section 2.  
2640B  
To change the tension code, press the ENTER key.  
The tension code will be changed and the sewing  
machine will then return to pattern editing mode.  
3
or  
or  
If you would like to return to pattern editing mode without  
changing a tension code, press the  
or  
key.  
If you would like to end pattern editing mode without  
changing a tension code, press the TEST key.  
2414B 2638B 2404B  
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5. EDITING PATTERN DATA  
5-8. Deleting tension codes  
<Deleting section 2>  
Final stitch  
Final stitch  
2647B  
1
Carry out steps 1 to 3 in “5-3. Switching to pattern editing  
mode” to switch to pattern editing mode.  
While pressing the SELECT key, press the SECTION  
[+ -] keys. Each time a key is pressed, the work  
clamp/button clamp automatically moves to the start of  
the next or the previous section.  
Move the work clamp/button clamp to the start of the  
section you would like to delete.  
2630B 2641B  
While pressing a TENSION key, press the RESET key.  
The delete selection display will appear.  
2
The TEST indicator will turn off.  
“ dEL” will be displayed in the menu display.  
2643B 2644B  
When you press the SECTION [+ -] keys, the delete  
selection display will switch between all sections and an  
individual section.  
3
For example, when an  
individual section is selected  
Tension code T6  
For example, when all  
sections are selected  
2645B 2646B  
To delete the section, press the ENTER key.  
4
The specified tension code will be deleted and the sewing  
machine will return to pattern editing mode. As well as  
this, the section will also be deleted and the numbers  
for subsequent sections will be decremented by 1.  
* The tension code in section 1 is the only tension code  
which cannot be deleted.  
or  
If you would like to return to pattern editing mode without  
deleting the tension code, press the RESET key.  
2414B 2634B  
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6. X AND Y PARALLEL MOVEMENT OF SEWING PATTERNS  
6. X AND Y PARALLEL MOVEMENT OF SEWING  
PATTERNS  
The work clamp/button clamp can be moved to any desired position so that sewing patterns which have already been  
programmed can be moved in parallel directions forward, back or to the left or right.  
Use this when you would like to correct the sewing position with respect to the work clamp/button clamp.  
Press the  
or  
key to select the program number.  
1
* If a cycle program has been selected, the following  
operation cannot be carried out. Select a program  
from 1 to 999.  
For example, program  
No. 1  
2776B  
While holding down the TEST key, press the  
switch to parallel movement mode.  
key to  
2
The amount of parallel movement in the horizontal  
direction which has currently been set will be  
displayed in the menu display in mm units.  
* The sewing machine will not switch to parallel  
movement mode if memory switch No. 465 is set to  
“3”.  
Set it to “1” or “2”.  
2777B 2648B  
Depress the foot switch to the 2nd step.  
Home position detection will be carried out.  
The pattern number will change to illuminated.  
3
4
2nd step  
4441Q  
Each time the  
or  
key is pressed, the work  
clamp/button clamp will move by 0.05 mm.  
In X-scale parallel movement mode, the work  
clamp/button clamp will move to the left when the  
key is pressed, and to the right when the  
pressed.  
key is  
The range of movement is a maximum of -9.95 mm to  
+9.95 mm. However, the sewing pattern cannot be  
moved outside the sewing area.  
For example, set to 0.05.  
2778B  
2414B  
Confirm the movement amount.  
Press the ENTER key.  
5
The amount of parallel movement in the horizontal  
direction will be confirmed, and the menu display will  
change to illuminated.  
(Continued on next page.)  
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6. X AND Y PARALLEL MOVEMENT OF SEWING PATTERNS  
Press the SELECT key so that the Y-scale indicator  
flashes.  
6
Y-scale  
X-scale  
Parallel movement mode  
Parallel movement mode  
2401B  
* When the SELECT key is pressed, the X-SCALE  
indicator and the Y-SCALE indicator will flash  
alternately.  
2649B  
7
Each time the  
or  
key is pressed, the work  
clamp/button clamp will move by 0.05 mm.  
In Y-scale parallel movement mode, the work  
clamp/button clamp will move forward when the  
key is pressed, and backward when the  
pressed.  
key is  
The range of movement is a maximum of -9.95 mm to  
+9.95 mm. However, the sewing pattern cannot be  
moved outside the sewing area.  
For example, set to -0.05.  
2779B  
2414B  
Confirm the movement amount  
Ending parallel movement mode  
Press the ENTER key.  
8
9
The amount of parallel movement in the vertical  
direction will be confirmed, and the menu display will  
change to illuminated.  
Press the TEST key.  
The display will return to the normal display and the  
sewing machine will change to home position standby.  
* If you would like to return to step 4, press the SELECT  
key instead of the TEST key.  
TEST indicator switches off  
NOTE:  
If you change the program number, the pattern number, the X-scale or the Y-scale, the movement amount which has  
been stored will be reset.  
When the power switch is turned off, the movement amount which has been stored will be reset. However, if memory  
switch No. 465 is set to “2”, the movement amount will remain stored and will not be reset.  
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7. USING SD CARDS  
7. USING SD CARDS  
7-1. Notes on handling SD cards (commercially available)  
Use an SD card or a multimedia card with a capacity of 2GB or less.  
Do not disassemble or alter SD cards.  
Do not bend, drop, scratch or place heavy objects on top of the SD cards.  
Do not allow the SD cards to become wet, such as with water, oil, solvents, drinks or any other liquids.  
Do not use or store the SD cards in a locations exposed to strong static electricity or electrical interference.  
Do not use or store the SD cards in a locations exposed to vibrations or impacts, direct sunlight, extreme dust (or lint), high  
temperatures, high humidity, severe temperature fluctuations, or strong magnetic forces (such as from speakers).  
Do not subject the SD cards to vibration or shocks or remove them from the sewing machine while data reading or writing  
is in progress.  
Data on the SD cards may be lost or damaged due to some malfunction or accident. We recommend backing up important  
data.  
The SD cards that you purchased is already formatted. We recommend that the SD cards not be reformatted.  
The recommended SD cards are those sold by SanDisk and Panasonic. Cards from other manufacturers may use different  
formatting methods and may not work correctly as a result.  
For additional information, refer to the instruction manual included with the SD cards that you have purchased.  
* This product is compatible with SD cards that have been formatted using the FAT16/32 method. Cards that have  
been formatted using other formatting methods cannot be used.  
* All other company and product names mentioned in this instruction manual are trademarks or registered trademarks  
of their respective companies. However, the explanations for markings such as TM are not clearly described within  
the text.  
7-2. Structure of an SD card folder  
Data type  
Folder name  
\BROTHER\ISM\ISMSYS\  
File name  
ISM08MN.BVP (Main control program)  
ISM08MT.BVP (Motor control program)  
ISM08PL.BVP (Panel control program)  
Control program  
\BROTHER\ISM\ISMDA**\  
* ‘**’ represents the value for memory switch No.  
752. If storing additional pattern data from  
other sewing machines in the same SD card,  
change the name of the folder.  
ISMS0***.sew  
* ‘***’ represents the pattern data number.  
Pattern data  
Memory switch  
Same as above  
ISMMSW.SEW  
Parameter  
Same as above  
Same as above  
ISMUPG.SEW  
ISMCYC.SEW  
Cycle program  
Error log  
\BROTHER\ISM\ISMLDT\  
Stores the files which relate to error logs.  
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7. USING SD CARDS  
7-3. Preparation for reading and writing data  
Insert the SD card into the SD slot.  
1
NOTE:  
Make sure the SD card is facing the correct way.  
The cover should be closed at all times except when  
the SD card is inserted and removed, otherwise dust  
may cause trouble  
2650B  
Turn on the power switch.  
2
3
While pressing the TEST key, press the ENTER key.  
Switching to SD data read/write mode  
2652B  
“ sd” will appear in the PROGRAM No. display and  
“read” will appear in the menu display while the SD  
card is being read.  
Once reading of the SD card is complete, the mode  
number will appear in the PROGRAM No. display and  
the setting for that mode number will appear in the  
menu display.  
The initialization mode is additional pattern data read  
mode. (Refer to “Read/write mode list” below.)  
TEST indicator flashes  
2651B  
Press the  
or  
key to select the mode.  
4
For example mode No. w2  
2653B  
[Read/write mode list]  
PROGRAM No.  
Menu display  
Setting items  
display  
r 1  
[-Ptn]  
[Ptn-]  
Reads additional pattern data from the SD card. *  
w 2  
r 3  
Writes additional pattern data to the SD card.  
[-MEM]  
[MEM-]  
[-PrG]  
[PrG-]  
Memory switch settings are read from the SD card.  
Memory switch settings are written to the SD card.  
w 4  
r 5  
Reads sewing program data and cycle program data from the SD card.  
Writes sewing program data and cycle program data to the SD card.  
w 6  
Reads all sewing machine data (sewing program data, cycle program data, memory  
switch settings and additional pattern data) from the SD card.  
r 7  
[-ALL]  
Writes all sewing machine data (sewing program data, cycle program data, memory  
switch settings and additional pattern data) to the SD card.  
w 8  
W9  
[ALL-]  
[LoG-]  
Error log data is written to the SD card.  
* The additional pattern data that can be used with this sewing machine is data which has been created for the  
KE-430F/BE-438F or for the KE-430D/BE-438D.  
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7. USING SD CARDS  
7-4. Reading additional pattern data  
Select the “ r 1” SD data read/write mode.  
(Refer to “7-3. Preparation for reading and writing data”.)  
1
The number of the additional pattern data in the SD  
card folder will appear in the tension display.  
(The initial value displayed is “ALL”.)  
2651B  
2
Press the  
or  
key to select the number for the  
additional pattern that you would like to be read (ALL,  
200 to 999).  
When “ALL” is displayed, all of the additional pattern  
data will be read at once.  
For example, to read pattern  
number 200  
The additional pattern numbers displayed will only be  
those that are in the SD card folders. (If there is no  
data on the card, “ALL” will be the only thing  
displayed.)  
2656B  
Press the ENTER key.  
3
2414B  
The buzzer will sound and the selected pattern data  
will be read from the folder on SD card and copied into  
the sewing machine’s memory.  
While reading  
If no additional pattern data exists, an error buzzer will  
sound.  
Pattern number being read  
appears in the tension display  
2657B 2658B  
When the display returns to the status in step 1, reading  
of the additional pattern data is complete.  
4
5
If you would like to use any other read/write modes,  
press the  
run it.  
or  
key to select the mode and then  
2654B  
Ending read/write mode  
Press the TEST key.  
* To sew a pattern that you want to add, register a  
program while referring to “5-2. Program setting  
method” in the CD Instruction Manual.  
TEST indicator switches off  
2404B  
KE-430F, BE-438F  
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7. USING SD CARDS  
7-5. Writing additional pattern data to an SD card  
Select the “ w2” SD data read/write mode.  
(Refer to “7-3. Preparation for reading and writing data”.)  
1
The numbers for the additional pattern data in the  
sewing machine memory will appear in the tension  
display.  
(The initial value displayed is “ALL”.)  
2901B  
2
Press the  
or  
key to select the number for the  
additional pattern that you would like to write (ALL, 200  
to 999).  
When “ALL” is displayed, all of the additional pattern  
data will be read at once.  
The additional pattern numbers displayed will only be  
those that are in the sewing machine memory. (If  
there is no data in the memory, “ALL” will be the only  
thing displayed.)  
For example, writing pattern  
number 200  
2656B  
Press the ENTER key.  
3
2414B  
The buzzer will sound and the selected pattern data  
will be written to the SD card.  
If no additional pattern data exists, an error buzzer will  
sound.  
While writing  
Pattern number being written  
appears in the tension display  
2660B 2658B  
When the display returns to the status in step 1, writing  
of the additional pattern data is complete.  
4
5
If you would like to use any other read/write modes,  
press the  
run it.  
or  
key to select the mode and then  
2659B  
Ending read/write mode  
TEST indicator switches off  
Press the TEST key.  
2404B  
KE-430F, BE-438F  
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46  
7. USING SD CARDS  
7-6. Reading memory switch data  
Select the “ r3” SD data read/write mode.  
(Refer to “7-3. Preparation for reading and writing data”.)  
1
2661B  
Press the ENTER key.  
2
2414B  
The buzzer will sound and the memory switch data will  
be read from the SD card and stored in the sewing  
machine memory, and the memory switch settings will  
then be applied.  
While reading  
If no memory switch data exists, an error buzzer will  
sound.  
“MEM” appears in the tension  
display  
2662B 2663B  
When the display returns to the status in step 1, reading  
of the memory switch data is complete.  
3
4
If you would like to use any other read/write modes,  
press the  
run it.  
or  
key to select the mode and then  
2661B  
Ending read/write mode  
TEST indicator switches off  
Press the TEST key.  
2404B  
KE-430F, BE-438F  
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47  
7. USING SD CARDS  
7-7. Writing memory switch data to the SD card  
Select the “ w4” SD data read/write mode.  
(Refer to “7-3. Preparation for reading and writing data”.)  
1
2664B  
Press the ENTER key.  
2
2414B  
The buzzer will sound and the memory switch data will  
be copied to the SD card.  
While writing  
“MEM” appears in the tension  
display  
2902B 2663B  
When the display returns to the status in step 1, writing of  
the memory switch data is complete.  
3
4
If you would like to use any other read/write modes,  
press the  
run it.  
or  
key to select the mode and then  
2664B  
Ending read/write mode  
TEST indicator switches off  
Press the TEST key.  
2404B  
.
KE-430F, BE-438F  
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48  
7. USING SD CARDS  
7-8. Reading program data  
Select the “ r5” SD data read/write mode.  
(Refer to “7-3. Preparation for reading and writing data”.)  
1
2665B  
Press the ENTER key.  
2
2414B  
The buzzer will sound and the sewing program data  
and cycle program data will be read from the SD card  
and stored in the sewing machine’s memory, and the  
sewing programs and cycle programs will then be set.  
If no program data or cycle program data exists, an  
error buzzer will sound.  
While reading  
“PrG” appears in the tension  
display  
2903B 2668B  
When the display returns to the status in step 1, reading  
of the program data is complete.  
3
4
If you would like to use any other read/write modes,  
press the  
run it.  
or  
key to select the mode and then  
2665B  
Ending read/write mode  
TEST indicator switches off  
Press the TEST key.  
2404B  
KE-430F, BE-438F  
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49  
7. USING SD CARDS  
7-9. Writing program data to an SD card  
Select the “ w6” SD data read/write mode.  
(Refer to “7-3. Preparation for reading and writing data”.)  
1
2666B  
Press the ENTER key.  
2
2414B  
The buzzer will sound and the memory switch data will  
be copied to the SD card.  
While writing  
“PrG” appears in the tension  
display  
2667B 2668B  
When the display returns to the status in step 1, writing of  
the program data is complete.  
3
If you would like to use any other read/write modes,  
press the  
run it.  
or  
key to select the mode and then  
2666B  
Ending read/write mode  
Press the TEST key.  
4
TEST indicator switches off  
2404B  
KE-430F, BE-438F  
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50  
7. USING SD CARDS  
7-10. Reading sewing machine data  
Select the “ r7” SD data read/write mode.  
(Refer to “7-3. Preparation for reading and writing data”.)  
1
2669B  
Press the ENTER key.  
2
2414B  
The buzzer will sound and the sewing program data,  
cycle program data, memory switch settings and  
additional pattern data will be read from the SD card  
and stored in the sewing machine's memory.  
If no program data or cycle program data exists, an  
error buzzer will sound.  
While reading  
“MEM” appears in the tension  
display while memory switch  
settings are being read, the  
pattern number appears while  
additional pattern data is being  
read, and “PrG” appears while  
program data is being read  
2670B 2663B  
When the display returns to the status in step 1, reading  
of the sewing machine data is complete.  
3
4
If you would like to use any other read/write modes,  
press the  
run it.  
or  
key to select the mode and then  
2669B  
Ending read/write mode  
TEST indicator switches off  
Press the TEST key.  
2404B  
KE-430F, BE-438F  
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51  
7. USING SD CARDS  
7-11. Writing sewing machine data to an SD card  
Select the “ w8” SD data read/write mode.  
(Refer to “7-3. Preparation for reading and writing data”.)  
1
2671B  
Press the ENTER key.  
2
2414B  
The buzzer will sound and the sewing program data,  
cycle program data, memory switch settings and  
additional pattern data will be read from the SD card  
and stored in the sewing machine's memory.  
While writing  
“MEM” appears in the tension  
display while memory switch  
settings are being written, the  
pattern number appears while  
additional pattern data is being  
written, and “PrG” appears while  
program data is being written  
2672B 2663B  
When the display returns to the status in step 1, writing of  
the sewing machine data is complete.  
3
4
If you would like to use any other read/write modes,  
press the  
run it.  
or  
key to select the mode and then  
2671B  
Ending read/write mode  
TEST indicator switches off  
Press the TEST key.  
2404B  
KE-430F, BE-438F  
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52  
7. USING SD CARDS  
7-12. Writing error log data and memory switch log data to an SD card  
Select the “ w9” SD data read/write mode.  
(Refer to “7-3. Preparation for reading and writing data”.)  
1
2673B  
Press the ENTER key.  
2
2414B  
The buzzer will sound and the error log data and  
memory switch log data will be copied to the SD card.  
While writing  
“LoG” appears in the tension  
display while log data is being  
written  
2674B 2675B  
When the display returns to the status in step 1, writing of  
the log data is complete.  
3
4
If you would like to use any other read/write modes,  
press the  
run it.  
or  
key to select the mode and then  
2673B  
Ending read/write mode  
TEST indicator switches off  
Press the TEST key.  
2404B  
KE-430F, BE-438F  
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53  
7. USING SD CARDS  
7-13. Updating the control program version  
Place the control program that you would like to update into the folder of the SD card as specified in “7-2. Structure of  
a SD card folder”.  
1
With the power switch turned off, insert the SD card into the SD card slot.  
(Refer to step 1 in “7-3. Preparation for reading and writing data”.)  
2
While holding down the RESET, TEST and keys, turn  
on the power switch.  
3
2677B  
The same “bro”, “ther”, “-F” (may vary depending on  
specifications) and “430” (“438” as appear in the  
PROGRAM No. display, menu display, section No.  
display and tension display will appear. Keep holding  
down the keys until you hear a beep.  
2676B  
“1.Mn”will appear in the PROGRAM No. display and  
“*.*.**” (control program version stored on the SD card)  
will appear in the menu display.  
4
2678B  
Press the  
updated.  
or  
key to select the program to be  
5
PROGRAM No.  
display  
Menu  
display  
Control program  
Main  
[1.Mn]  
[*.*.**]  
Motor  
Panel  
[2.Mt]  
[3.PL]  
[*.**]  
[*.**]  
If there is no program to be updated which is stored on  
the SD card, “----” will appear in the menu display.  
2679B  
Press the ENTER key.  
6
2414B  
The buzzer will sound and updating of the program  
version will start.  
When “End” appears in the menu display, updating is  
complete.  
To continue updating another program, return to step  
5 and select the next program to be updated.  
“WAIT” will appear in the menu  
display and the value in the  
tension display will increment  
while the program version is  
being updated.  
2680B 2681B  
Turn off the power switch.  
7
KE-430F, BE-438F  
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54  
8. MECHANICAL DESCRIPTIONS  
8. MECHANICAL DESCRIPTIONS  
The mechanisms operate in the order of the numbers given in the illustrations.  
* <number> and [number] indicates the flow of each operations given.  
* (number) indicates part names only. (They do not represent the flow of operations.)  
8-1. Needle bar and thread take-up mechanisms  
2523B  
1. Pulley  
2. Upper shaft  
3. Thread take-up crank  
4. Needle bar crank  
5. Needle bar connecting <5> Thread take-up  
rod assembly  
6. Needle bar clamp  
7. Needle bar  
lever assembly  
8-2. Lower shaft and shuttle race mechanisms  
2524B  
1. Pulley  
2. Upper shaft  
3. Crank rod assembly  
4. Rock gear  
5. Lower gear  
6. Lower shaft assembly  
7. Driver  
8. Shuttle hook  
KE-430F, BE-438F  
55  
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8. MECHANICAL DESCRIPTIONS  
8-3. Work clamp lifter mechanism  
1. Pulse motor T assembly  
2. Gear 16  
3. Cam gear  
4. Driving lever  
5. Link  
6. Lifter lever assembly  
7. Work clamp lifter plate assembly  
8. Work clamp arm lever plate  
9. Work clamp arm lever shaft  
10. Work clamp arm lever  
11. Work clamp  
2525B  
* When the work clamp pulse motor is turned off, the work  
clamp lifter plate rises, and work clamps lower.  
2526B  
BE-438F  
7. Button clamp rod  
8. Button clamp lever  
9. Button clamp holder hook assembly  
10. Button clamp holder shaft  
* When the work clamp pulse motor is turned off, the button  
clamp rod rises, and button clamps lower.  
11. Button clamp  
KE-430F, BE-438F  
56  
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8. MECHANICAL DESCRIPTIONS  
8-4. Thread wiper mechanism  
When the work clamp pulse motor is turned off, the  
thread wiper operates in the opposite direction.  
2527B  
1. Pulse motor T assembly  
2. Gear 16  
3. Cam gear  
4. Cam shaft  
5. Thread wiper cam  
6. Thread wiper driving lever  
7. Thread wiper rod assembly  
8. Connecting plate  
9. Thread wiper arm assembly  
KE-430F, BE-438F  
57  
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8. MECHANICAL DESCRIPTIONS  
8-5. Feed mechanism  
Sewing patterns are created through combinations of X and Y movements.  
X direction  
2528B  
1. Pulse motor X assembly  
2. Feed gear  
3. X-feed gear  
4. X-feed lever  
5. Regulator block assembly  
6. Feed bracket sub assembly  
Y direction  
2529B  
1.Pulse motor Y assembly  
2.Feed gear  
3.Y-feed rack shaft  
4.Y-feed rack shaft clamp  
5.Feed bracket sub assembly  
KE-430F, BE-438F  
58  
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8. MECHANICAL DESCRIPTIONS  
8-6. Thread trimmer mechanism  
2530B  
1. Upper shaft  
13. Thread trimmer lever H  
2. Pulse motor T assembly  
3. Gear 16  
4. Cam gear  
(1) Fixed knife  
14. Thread trimmer rod H assembly <14>Thread trimmer link  
15. Movable knife lever  
16. Movable knife connecting plate  
17. Movable knife  
5. Cam shaft  
6. Thread trimmer driving cam  
7. Cam lever thread trimmer  
8. Thread driving lever  
9. Thread trimmer collar  
10. Thread trimmer cam  
11. Thread trimmer rod V assembly  
12. Thread trimmer lever V  
<Pulse motor ON>  
18. Gear  
<Thread trimmer solenoid ON>  
[18] Thread trimmer solenoid assembly  
[19] Thread trimmer link  
[20] Thread trimmer rod H assembly  
[21] Movable knife lever  
19. Thread trimmer driving cam  
20. Cam lever thread trimmer  
21. Thread trimmer collar  
[22] Movable knife connecting plate  
[23] Movable knife  
KE-430F, BE-438F  
59  
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8. MECHANICAL DESCRIPTIONS  
8-7. Tension release mechanism  
1. Tension solenoid  
2. Bolt  
2531B  
3. Tension release bar  
4. Tension release pin  
8-8. Thread nipper mechanism (KE-430F -03, -0F, -0K specifications only)  
2532B  
1. Pulse motor P assembly  
2. Motor lever  
3. TR-link  
4. Thread driving lever  
5. Connecting plate R  
6. TN-Connecting plate assembly F  
7. Thread nipper D assembly  
8. Thread nipper U  
KE-430F, BE-438F  
60  
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9. DISASSEMBLY  
9. DISASSEMBLY  
CAUTION  
When replacing parts and installing optional  
accessories, be sure to use only genuine Brother  
parts.  
Brother will not be held responsible for any  
accidents or problems resulting from the use of  
non-genuine parts.  
Disassembly should only be carried out by a  
qualified technician.  
Turn off the power switch before disassembly,  
otherwise the machine may operate if the foot switch  
is depressed by mistake, which may result in injury.  
Be sure to wear protective goggles and gloves when  
handling the lubricating oil and grease, so that they  
do not get into your eyes or onto your skin,  
otherwise inflammation can result.  
Furthermore, do not drink the oil or eat the grease  
under any circumstances, as they can cause  
vomiting and diarrhea.  
If any safety devices have been removed, be  
absolutely sure to re-install them to their original  
positions and check that they operate correctly  
before using the machine.  
To prevent accidents and problems, do not modify  
the machine yourself.  
Brother will not be held responsible for any  
accidents or problems resulting from modifications  
made to the machine.  
Keep the oil out of the reach of children.  
Disassemble each part in order of the numbers.  
9-1. Covers  
2533B  
7. Bolts [2 pcs]  
8. Eye guard assembly  
9. Screws [3 pcs]  
10. Face plate assembly  
11. Shoulder screws 8-2 [2 pcs]  
12. Washer, wave springs [2 pcs]  
13. Shuttle race cover assembly  
1. Screws [4 pcs]  
2. Top cover  
3. Screws [4 pcs]  
4. Rear cover  
5. Screws [4 pcs]  
6. Side cover  
KE-430F, BE-438F  
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61  
9. DISASSEMBLY  
9-2. Work clamp arm mechanism  
KE-430F  
1. Set screw  
2. Needle  
3. Needle bar thread guide  
4. Bolts [2 pcs]  
5. Plain washers [2 pcs]  
6. Work clamp arm assembly  
7. Screws [2 pcs]  
8. Feed plate  
2534B  
BE-438F  
2535B  
1. Set screw  
5. Set screws [2 pcs: Loosen]  
2. Needle  
3. Needle bar thread guide  
4. Nuts [2 pcs]  
6. Button clamp holder shaft  
7. Button clamp holder  
8. Screws [2 pcs]  
9. Feed plate  
Adjusting screw  
Compression spring [Push upward and remove horizontally]  
KE-430F, BE-438F  
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62  
9. DISASSEMBLY  
9-3. Needle bar mechanism  
2536B  
Left-hand thread  
2537B  
Do not remove the slide block guide if  
possible to prevent the machine from  
overheating due to needle bar rubbing.  
1. Rubber cap  
11. Screw [Loosen]  
2. Screw  
12. Needle bar connecting rod assembly  
13. Rubber cap  
14. Set screws [3 pcs: Loosen]  
15. Needle bar crank  
16. Washer  
17. Thread take-up lever assembly  
18. Washer  
19. Bolts [2 pcs]  
3. Needle bar [Pull out]  
4. Needle bar clamp  
5. Slide block  
6. Rubber caps [3 pcs]  
7. Set screws [2 pcs: Loosen]  
8. Set screws [2 pcs: Loosen]  
9. Thread take-up support  
10. Set screw collar  
20. Slide block guide  
KE-430F, BE-438F  
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9. DISASSEMBLY  
9-4. Upper shaft mechanism  
2538B  
1. Screws [2 pcs]  
2. Grease support F  
3. Bolt  
4. Crank rod washer  
5. Crank rod base  
(Continued on next page.)  
KE-430F, BE-438F  
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64  
9. DISASSEMBLY  
If the motor assembly cannot be  
removed, insert the bolts 23 into these  
two tapping holes and gradually tighten  
them to remove the motor assembly.  
Be careful not to drop the balancer.  
(Remove)  
(Loosen)  
2539B  
6. Screw  
17. Set screws [2 pcs: Loosen]  
18. Set screws [2 pcs: Loosen]  
19. Screws [2 pcs]  
20. Plain washers [2 pcs]  
21. Bobbin winder unit  
22. Set screws [2 pcs: Loosen]  
23. Bolts [4 pcs]  
7. Set screw [Loosen]  
8. Thread take-up crank  
9. Bolts [2 pcs]  
(Remove one, loosen one.)  
10. Balancer plate  
11. Balancer  
12. Set screws [2 pcs: Loosen]  
13. Rubber cap  
14. Set screws [2 pcs: Loosen]  
15. Set screws [2 pcs: Loosen]  
16. Set screws [2 pcs: Loosen]  
24. Motor assembly  
25. Thread trimmer cam  
26. Joint assembly  
27. Upper shaft  
28. Pulley gear R  
KE-430F, BE-438F  
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9. DISASSEMBLY  
9-5. Lower shaft mechanism  
2540B  
If the adjusting stud 3 will not pull  
out, screw a M3 or similar screw (1)  
into the tap hole and then pull on the  
M3 or similar screw (1) so that the  
adjusting stud 3 can be removed.  
1. Bolt [Loosen]  
2. Driver  
3. Adjusting stud [Pull out]  
4. Set screw [Loosen]  
5. Screw  
6. Oil tube support  
7. Screw  
8. Cord holder U3  
9. Shuttle race base assembly  
Do not remove the gear cover if at all  
possible, otherwise grease will leak out.  
2541B  
10. Screws [5 pcs]  
11. Gear cover  
12. Screws [2 pcs]  
13. Positioning plate  
(Continued on next page.)  
KE-430F, BE-438F  
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66  
9. DISASSEMBLY  
2547B  
The rubber seal and the oil seal cannot be reused, so have new parts ready for use.  
2549B  
14. Rubber caps [2 pcs]  
22. Lower shaft assembly  
15. Set screws [4 pcs: Loosen]  
16. Set screws [2 pcs]  
17. Set screws [2 pcs]  
18. Rock gear shaft R [Pull backward]  
19. Rock gear shaft assembly [Pull forward]  
20. Rock gear  
23. Rubber seal L  
24. Bearing bush assembly  
(Tap out the rubber seal L 23 and the bearing bush  
together toward the rear.)  
25. Oil seal  
26. Bearing bush assembly  
(Tap out the oil seal 25 and the bearing bush  
together toward the front.)  
21. Set screws [4 pcs: Loosen]  
KE-430F, BE-438F  
67  
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9. DISASSEMBLY  
9-6. Lubrication  
2542B  
1. Bolts [2 pcs]  
2. Bolts [2 pcs]  
3. Plain washers [2 pcs]  
4. Oil tank plate  
5. Oil tank nut  
6. Oil tank assembly  
KE-430F, BE-438F  
68  
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9. DISASSEMBLY  
9-7. Feed mechanism  
2543B  
1. Set screw [Loosen]  
2. Retaining ring, E  
3. Y-feed rack shaft cramp [Pull upward]  
4. Screws [6 pcs]  
5. Feed bracket cover  
6. Set screw [Loosen]  
7. Regulator block assembly  
8. Feed bracket sub assembly  
9. Bolts [4 pcs]  
2544B  
10. Feed bracket support plate  
11. Bolt sockets (S/P washers) [3 pcs]  
12. Y-motor setting plate [Pulse motor Y assembly]  
13. Y-feed rack shaft  
14. Bolt  
15. X-feed gear  
16. Bolt sockets (S/P washers) [3 pcs]  
17. X-motor setting plate [Pulse motor X assembly]  
18. X-feed lever [Pull upward]  
2545B  
KE-430F, BE-438F  
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9. DISASSEMBLY  
9-8. Thread wiper mechanism  
2546B  
1. Set screw [Loosen]  
2. Retaining ring, E  
3. Screws [2 pcs]  
4. Plain washers [2 pcs]  
5. Thread wiper arm assembly  
6. Retaining ring, E  
7. Plain washer  
8. O rings [2 pcs]  
9. Connecting plate [Pull upward]  
10. Set screw [Loosen]  
11. Retaining ring, E  
12. Plain washer  
13. Wiper shaft  
14. Thread wiper rod assembly [Pull forward]  
KE-430F, BE-438F  
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70  
9. DISASSEMBLY  
9-9. Work clamp lifter mechanism  
2548B  
1. Link shoulder screw  
2. Bolts [3 pcs]  
11. Cam lever thread trimmer  
12. Plain washer  
21. Thread wiper driving lever  
22. Plain washer  
3. Motor bracket assembly  
4. Bolts [4 pcs]  
13. Springs [2 pcs]  
14. Bolts [2 pcs]  
23. Set screws [2 pcs: Loosen]  
24. Set screw collar  
5. Pulse motor T assembly  
6. Set screws [2 pcs: Loosen]  
7. Gear 16  
8. Set screws [2 pcs: Loosen]  
9. Retaining ring, E  
15. Spring hook  
25. Set screws [6 pcs: Loosen]  
26. Cam shaft  
27. Cam gear  
28. Thread wiper cam  
29. Thread trimmer driving cam  
16. Set screws [2 pcs: Loosen]  
17. Retaining ring, E  
18. Lever shaft  
19. Drive lever w-clamp lifter  
20. Plain washer  
10. Driving thread trimmer shaft  
(Continued on next page.)  
KE-430F, BE-438F  
71  
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9. DISASSEMBLY  
KE-430F  
30. Rubber cap  
31. Link shoulder screw  
32. Link  
33. Set screw [Loosen]  
34. Retaining ring, E  
35. Lever shaft  
36. Plain washer  
37. Lifter lever assembly  
38. Needle bar guide slide block  
39. Work clamp lifter plate assembly  
NOTE:  
Hold the work clamp lifter plate  
when removing the lifter lever  
assembly 37, otherwise the work  
clamp lifter plate assembly may fall  
down.  
2550B  
BE-438F  
30. Rubber cap  
31. Link shoulder screw  
32. Link  
33. Set screw [Loosen]  
34. Retaining ring, E  
35. Lever shaft  
36. Plain washer  
37. Lifter lever assembly  
38. Needle bar guide slide block  
39. Nuts [2 pcs]  
40. Button clamp roller shaft  
41. Plain washer  
42. Roller  
43. Button clamp rod [Pull upward]  
44. Set screw [Loosen]  
45. Button clamp lever shaft [Pull out]  
46. Retaining ring, E  
47. Plain washer  
48. Button clamp lever  
49. Bolts [2 pcs]  
50. Button clamp lever holder  
2551B  
KE-430F, BE-438F  
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72  
9. DISASSEMBLY  
9-10. Threading mechanism  
2552B  
1. Set screw [Loosen]  
2. Tension bracket [Pull out]  
3. Tension release pin  
4. Nut  
5. Plain washer  
6. Set screw [Loosen]  
7. Tension stud assembly [Pull out]  
8. Thread take-up spring  
9-11. Tension release mechanism  
1. Screws [2 pcs]  
8. Solenoid setting plate  
2. Solenoid cover  
9. Bolt  
3. Screws [2 pcs]  
10. Nut  
4. Tension solenoid  
5. Bolts [2 pcs]  
6. Spring washers [2 pcs]  
7. Plain washers [2 pcs]  
11. Plain washer  
12. Solenoid cushion  
13. Tension release bar  
2553B  
KE-430F, BE-438F  
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73  
9. DISASSEMBLY  
9-12. Thread nipper mechanism (KE-430F -03, -0F, -0K specifications only)  
2554B  
1. Link shoulder screws [2 pcs]  
2. TR-Ling  
3. Set screws [2 pcs: Loosen]  
4. Motor lever  
17. Washers [2 pcs]  
18. TN-connecting plate R  
19. TN-connecting plate F assembly  
20. Shoulder screw  
5. Bolts [4 pcs]  
6. Pulse motor P assembly  
7. Bolts [3 pcs]  
21. Thread nipper D assembly  
22. Collar  
23. Spacer  
8. Motor bracket rear assembly  
9. Link shoulder screw  
10. Washer, wave spring  
11. Set screws [2 pcs: Loosen]  
12. Thread nipper lever shaft  
13. Retaining ring, E  
14. Washer  
24. Shoulder screw, 6-0.9  
25. Thread nipper U  
26. Spring  
27. Screws [2 pcs]  
28. Plain washers [2 pcs]  
29. Spring hook plate  
30. Set screw [Loosen]  
31. Eccentric shaft  
2584B  
15. Thread nipper lever  
16. Bolts [2 pcs]  
(The ball bearing (1) can be removed at the same time.)  
KE-430F, BE-438F  
74  
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9. DISASSEMBLY  
9-13. Thread trimmer mechanism  
2555B  
1. Set screws [2 pcs: Loosen]  
2. Thread trimmer cam  
3. Screws [3 pcs]  
4. Fan  
5. Set screws [2 pcs: Loosen]  
6. Guide shaft  
7. Spring  
8. Nut  
9. Shoulder screw B  
10. Driving lever  
11. Set screws [2 pcs: Loosen]  
12. Retaining ring, C  
13. Collar shaft  
14. Thread trimmer collar  
15. Screws [2 pcs]  
16. Flat screws [2 pcs]  
17. Needle plate  
2556B  
(Continued on next page.)  
KE-430F, BE-438F  
75  
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9. DISASSEMBLY  
2557B  
18. Nut  
19. Shoulder screw B  
20. Thread trimmer rod V assembly 35. Nut  
33. Thread trimmer lever V  
34. Washer, wave spring  
47. Thread trimmer rod H assembly  
48. Movable knife shoulder screw  
49. Thrust washer  
21. Nut  
36. Solenoid shaft  
50. Movable knife collar  
51. Movable knife assembly  
52. Movable knife spacer  
53. Screws [2 pcs]  
22. Shoulder screw B  
23. Washer, wave spring  
24. Bolt  
37. Thread trimmer link  
38. Set screws [2 pcs: Loosen]  
39. Bolts [3 pcs]  
25. Spring washer  
40. Thread trimmer solenoid assembly 54. Spring washers [2 pcs]  
26. Plain washer  
41. Shoulder screw  
55. Plain washers [2 pcs]  
27. Set screws [2 pcs: Loosen]  
28. Thread trimmer lever shaft  
29. Retaining ring, C  
30. Washers [2 pcs]  
31. Thread trimmer lever H  
32. Link shoulder screw  
42. Connecting plate 6-1.8  
43. Set screw [Loosen]  
44. Movable knife lever shaft  
45. Shoulder screw 6.35-6  
46. Movable knife lever  
56. Fixed knife  
* 57. Screws [2 pcs] [KE-430F only]  
* 58. Spring washers [2 pcs] [KE-430F only]  
* 59. Plain washers [2 pcs] [KE-430F only]  
* 60. Bobbin thread clamp spring [KE-430F only]  
For the BE-438F, parts marked with * are supplied as accessories. Install  
them if necessary.  
KE-430F, BE-438F  
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9. DISASSEMBLY  
9-14. Shuttle hook mechanism  
2558B  
1. Bobbin case assembly  
2. Shuttle race base setting claw  
[Open to right and left]  
3. Shuttle race base  
4. Shuttle hook  
KE-430F, BE-438F  
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10. ASSEMBLY  
10. ASSEMBLY  
CAUTION  
When replacing parts and installing optional  
accessories, be sure to use only genuine Brother  
parts.  
Brother will not be held responsible for any  
accidents or problems resulting from the use of  
non-genuine parts.  
Disassembly should only be carried out by a  
qualified technician.  
Turn off the power switch before disassembly,  
otherwise the machine may operate if the foot switch  
is depressed by mistake, which may result in injury.  
Be sure to wear protective goggles and gloves when  
handling the lubricating oil and grease, so that they  
do not get into your eyes or onto your skin,  
otherwise inflammation can result.  
Furthermore, do not drink the oil or eat the grease  
under any circumstances, as they can cause  
vomiting and diarrhea.  
If any safety devices have been removed, be  
absolutely sure to re-install them to their original  
positions and check that they operate correctly  
before using the machine.  
To prevent accidents and problems, do not modify  
the machine yourself.  
Brother will not be held responsible for any  
accidents or problems resulting from modifications  
made to the machine.  
Keep the oil out of the reach of children.  
Assemble each part in order of the numbers.  
* (number) indicates part names only. (The numbers do not indicate the order of assembly.)  
* Apply grease to the required places when reassembling the parts and once every two years.  
10-1. Thread trimmer mechanism (1)  
Apply grease to the portions indicated by the white arrows.  
When the ball joint assembly of the thread  
trimmer rod assembly has been  
disassembled, assemble it so that the distance  
between the centers of the holes is 290.1 ± 0.5  
mm.  
Tighten the set screw 5 on the screw stop  
while lightly pressing the thread trimmer  
lever shaft.  
H
2
2831B  
1. Movable knife lever  
2. Thread trimmer rod H assembly  
3. Shoulder screw 6.35-6  
4. Movable knife lever shaft  
5. Set screw (Tighten)  
6. Thread trimmer lever H  
7. Washer, wave spring  
8. Shoulder screw B  
9. Nut  
10. Thread trimmer lever V  
11. Washers [2 pcs]  
12. Button clamp holder shaft  
13. Retaining ring, C  
14. Set screws [2 pcs: Tighten]  
Tighten the two set screws 14 on the screw  
stop while lightly pressing the thread trimmer  
lever shaft.  
2832B  
(Continued on next page.)  
KE-430F, BE-438F  
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78  
10. ASSEMBLY  
Tighten the two set screws 19 on  
the screw stop while lightly  
pressing the collar shaft 17 in the  
direction shown in the illustration.  
Check that the thread trimmer  
collar 16 turns smoothly.  
Apply grease.  
2833B  
Push the thread  
trimmer solenoid  
assembly 38 downward  
gently to install it.  
2834B  
When the ball joint assembly of the  
thread trimmer rod V assembly 20  
has been disassembled, assemble  
it so that the distance between the  
centers of the holes is 309.5 ± 0.5  
mm.  
15. Driving lever  
16. Thread trimmer collar  
17. Collar shaft  
18. Retaining ring, C  
19. Set screws [2 pcs: Tighten]  
20. Thread trimmer rod V assembly  
21. Shoulder screw B  
22. Nut  
28. Plain washer  
29. Spring washer  
30. Bolt  
31. Thread trimmer link  
32. Solenoid shaft  
33. Set screws [2 pcs: Tighten]  
34. Thread trimmer link  
35. Washer, wave spring  
36. Link shoulder screw  
37. Nut  
23. Guide shaft  
24. Spring  
25. Set screws [2 pcs: Tighten]  
26. Shoulder screw B  
27. Nut  
38. Thread trimmer solenoid assembly  
39. Bolts [3 pcs]  
40. Connecting plate  
41. Shoulder screw, 6-1.8  
2835B  
KE-430F, BE-438F  
79  
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10. ASSEMBLY  
10-2. Tension release mechanism  
Adjust while referring to “11-16.  
Adjusting the tension release amount”.  
1. Tension release bar  
2. Tension solenoid  
3. Solenoid setting plate  
4. Plain washers [2 pcs]  
5. Spring washers [2 pcs]  
6. Bolts [2 pcs]  
9. Nut  
10. Bolt  
11. Screws [2 pcs]  
12. Solenoid cover  
13. Screws [2 pcs]  
7. Solenoid cushion  
8. Plain washer  
2836B  
10-3. Threading mechanism  
While gently pushing the tension stud assembly 3  
in the direction shown in the illustration, tighten the  
set screw 6 until there is no clearance between the  
tension bracket 1 and the nut 5.  
1. Tension bracket  
2. Thread take-up spring  
3. Tension stud assembly  
4. Plain washer  
2837B  
5. Nut  
6. Set screw [Tighten]  
7. Tension release pin  
8. Set screw [Tighten]  
Adjust the thread take-up spring height while  
referring to “11-1-2. Thread take-up spring”.  
KE-430F, BE-438F  
80  
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10. ASSEMBLY  
10-4. Thread wiper mechanism  
Apply grease to the portions indicated by the white arrows.  
Gently push the wiper shaft 2 while  
tightening the set screw 5.  
Adjust while referring to “11-15.  
Adjusting the thread wiper”.  
少量  
2838B  
1. Thread wiper rod assembly [Insert from the front]  
2. Wiper shaft  
3. Plain washer  
4. Retaining ring, E  
5. Set screw [Tighten]  
6. O rings [2 pcs]  
7. Connecting plate  
8. Plain washer  
9. Retaining ring, E  
10. Thread wiper arm assembly  
11. Plain washers [2 pcs]  
12. Screws [2 pcs]  
13. Retaining ring, E  
14. Set screw [Tighten]  
KE-430F, BE-438F  
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10. ASSEMBLY  
10-5. Thread nipper mechanism  
Apply grease to the portions indicated by the white arrows.  
Set so that the hole (4) in the needle hole  
plate is near the center of the hole in the  
thread nipper D assembly (3), and also set so  
that the screw stop of the pulse motor P  
assembly 26 is facing the same way as the  
harness connector (5); then tighten the two  
set screws 31.  
Screw stop  
2839B  
1. Eccentric shaft (Install the ball bearing (2) at the same time.)  
2. Set screw [Tighten]  
18. Bolts [2 pcs]  
3. Spring hook plate  
19. Lever shaft  
4. Plain washers [2 pcs]  
20. Washer  
21. Retaining ring, E  
22. Thread nipper lever  
23. Set screws [2 pcs: Tighten]  
5. Screws [2 pcs]  
6. Spring extension  
7. Thread nipper U  
8. Shoulder screw, 6-0.9  
24. Washer, wave spring  
9. Thread nipper spacer  
25. Link shoulder screw  
10. Thread nipper collar  
26. Pulse motor P assembly  
11. Thread nipper D assembly  
27. Bolts [4 pcs]  
2900B  
12. Thread nipper shoulder screw  
28. Motor lever  
1) Loosen the set screw 2 about 1/3 of a turn  
from its fully-tightened position so that the  
eccentric shaft 1 can rotate.  
2) Insert the Y-feed rack shaft (1), and then  
turn the eccentric shaft 1 so that it is lightly  
touching the ball bearing (2); then tighten  
the set screw 2.  
13. TN-connecting plate F assembly  
29. TR-Link  
14. TN-connecting plate R  
30. Link shoulder screws [2 pcs]  
31. Set screws [2 pcs: Tighten]  
15. Bolts [3 pcs]  
16. Motor bracket rear assembly  
17. Washers [2 pcs]  
3) Temporarily remove the Y-feed rack shaft  
(1).  
KE-430F, BE-438F  
82  
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10. ASSEMBLY  
10-6. Work clamp lifter mechanism  
Apply grease to the portions indicated by the white arrows.  
* Refer to the next page for the points to note during reassembly.  
D on next page  
B on next page  
Set so that the worn surface is on the inside, and align with  
the screw stop. Tighten the two set screws 10 so that there is  
no play in the axial direction. Check that the cam shaft 7  
rotates smoothly.  
A on next page  
C on next page  
C, D on next page  
A on next page  
B, D on next page  
2840B  
1. Spring hook  
11. Plain washer  
21. Retaining ring, E  
2. Bolts [2 pcs]  
3. Springs [2 pcs]  
12. Thread wiper driving lever  
13. Plain washer  
22. Set screws [2 pcs: Tighten]  
23. Gear 16  
4. Cam gear  
14. Drive lever w-clamp lifter  
15. Lever shaft  
16. Retaining ring, E  
17. Set screws [2 pcs: Tighten]  
18. Plain washer  
19. Cam lever thread trimmer  
20. Driving thread trimmer shaft  
24. Pulse motor T assembly  
25. Set screws [2 pcs: Tighten]  
26. Bolts [4 pcs]  
27. Motor bracket assembly  
28. Bolts [3 pcs]  
5. Thread wiper cam  
6. Thread trimmer driving cam  
7. Cam shaft  
8. Set screws [6 pcs: Tighten]  
9. Set screw collar  
10. Set screws [2 pcs: Tighten]  
29. Link shoulder screw  
(Continued on next page.)  
KE-430F, BE-438F  
83  
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10. ASSEMBLY  
Set so that the clearance between  
drive gear 16 23 and the edge of the  
pulse motor T assembly 24 is 0.5 mm.  
Reference line  
A
B
Align  
(Screw stop side)  
2841B  
2863B  
Set the first two set screws 25 in the  
clockwise direction to the screw stop  
position.  
Set the first set screws 8 and 10 in the clockwise  
direction to the screw stop position.  
The cam gear 6 also has a slot c in it, so make sure the correct hole is used.  
C
Motor bracket  
Align the positions of hole a in the cam gear  
6 and hole b in the motor bracket 27.  
2864B  
D
2842B  
Make sure the harness connector is  
facing the correct way.  
2865B  
1) While maintaining the condition in C, install drive gear 16 23 to the motor bracket 27 so that the index  
mark is facing directly upward. Make sure that the harness connector is facing the correct way at this  
time.  
2) Engage drive gear 16 23 and the cam gear 6, and while taking up the backlash (play), install the pulse  
motor T assembly 24.  
(Continued on next page.)  
KE-430F, BE-438F  
84  
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10. ASSEMBLY  
KE-430F  
30. Work clamp lifter plate assembly  
31. Needle bar guide slide block  
32. Lifter lever assembly  
33. Plain washer  
34. Lever shaft  
35. Retaining ring, E  
36. Set screw [Tighten]  
37. Link  
38. Link shoulder screw  
39. Rubber cap  
BE-438F  
2843B  
30. Button clamp lever holder  
31. Bolts [2 pcs]  
32. Button clamp lever  
33. Plain washer  
34. Button clamp lever shaft  
35. Retaining ring, E  
36. Set screw [Tighten]  
37. Button clamp roller shaft  
38. Roller  
39. Button clamp roller shaft  
40. Plain washer  
41. Nuts [2 pcs]  
42. Needle bar guide slide block  
43. Lifter lever assembly  
44. Plain washer  
45. Lever shaft  
46. Retaining ring, E  
47. Set screw [Tighten]  
48. Link  
49. Link shoulder screw  
50. Rubber cap  
2844B  
Align the set screw 36 (430F) or 47 (438F) with the screw stop on the  
lever shaft 34 (430F) or 45 (438F), and then tighten the set screw while  
gently pushing the lifter lever assembly 32 (430F) or 43 (438F) so that  
there is no play in it.  
Check that the lifter lever assembly 32 (430F) or 43 (438F) moves  
smoothly.  
NOTE:  
When the work clamp lifter plate assembly 30 (430F)/button clamp rod 37  
(438F) is lowered, the needle bar guide slide block 31 (430F) or 42  
(438F) moves away, so hold the work clamp lifter plate assembly 30  
(430F)/button clamp rod 37 (438F) in place until the link shoulder screw  
38 (430F) or 49 (438F) is tightened.  
2845B  
KE-430F, BE-438F  
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10. ASSEMBLY  
10-7. Feed mechanism  
Apply grease to the portions indicated by the arrows.  
Set so that the clearance between  
the feed gear 1 and the pulse motor  
X assembly 2 is 0.5 mm, and then  
align the two set screws 3 with the  
screw stops as shown in the  
illustration and tighten them.  
Grease  
Screw stop  
2866B  
Apply grease to the grease hole on the inside.  
2846B  
2847B  
2848B  
Adjust the X-motor setting plate 2 so that the  
backlash amount (play) of the feed gear 1 is 0 to  
0.05 mm, and then tighten the bolts with washer 4.  
Make sure that the harness faces correctly.  
Index marks  
1. Feed gear  
2. X-motor setting plate [Pulse motor X assembly]  
3. Set screws [2 pcs: Tighten]  
4. Bolt sockets (S/P washers) [3 pcs]  
5. X-feed lever  
6. X-feed gear  
7. Bolt  
2849B  
Engage the feed gear 1 and the X-feed gear 6 so that the  
index marks are as close together as possible, and then  
tighten the bolt 7 so that the gears move smoothly in the  
axial direction with no play.  
(Continued on next page.)  
KE-430F, BE-438F  
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86  
10. ASSEMBLY  
Set screw  
Grease  
Remove the set screw and  
apply grease, and then  
retighten the set screw.  
8. Y-feed rack shaft  
2851B  
9. Retaining ring, E  
10. Feed bracket support plate  
11. Bolts [4 pcs: Temporarily tighten]  
12. Feed bracket sub assembly  
13. Regulator block assembly  
14. Set screw  
15. Feed bracket cover  
16. Screws [6 pcs]  
17. Y-feed rack shaft cramp  
18. Bolt  
2852B  
Move the feed bracket sub assembly 12 back and forth so that the Y-feed rack  
shaft 8 and the feed bracket sub assembly 12 move smoothly, and then tighten  
the four bolts 11.  
(Continued on next page.)  
KE-430F, BE-438F  
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10. ASSEMBLY  
Align the set screw 21 with the screw  
stop and tighten it so that the  
clearance between the feed gear 1  
and the pulse motor Y assembly 20 is  
0.5 mm as shown in the illustration.  
Screw stop  
2846B  
2847B  
19. Feed gear  
20. Pulse motor Y assembly (Y-motor setting plate)  
21. Set screws [2 pcs]  
2853B  
22. Bolt sockets (S/P washers)  
[3 pcs: Temporarily tighten]  
Make sure that the harness faces correctly.  
1) Provisionally tighten the three bolts with  
washer 22 so that the distance shown in the  
illustration is 95 mm with the screw stop of the  
pulse motor Y assembly 20 is facing the same  
way as the harness connector.  
Harness  
connector  
2) Move the pulse motor Y assembly 20 up or  
down so that the Y-feed rack shaft 8 moves  
with a force of 16 to 22 N, and then tighten the  
three bolts with washer 22.  
Screw stop  
* For the BE-438F, be particularly careful that the  
mechanism is in the correct position shown in  
the illustration.  
Approx. 95 mm  
2854B  
After installing, carry out the steps in "Feed mechanism home position adjustment"  
on the following page.  
(Continued on next page.)  
KE-430F, BE-438F  
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10. ASSEMBLY  
<Feed mechanism home position adjustment>  
2855B  
2856B  
1. Install the home position standard plate (1) to the feed bracket sub assembly (2) with the two screws (3).  
2. Gently tilt back the machine head.  
3. Switch the sewing machine to home position adjustment mode. (See "11-18-1. X- and Y-feed motor home positions".)  
4. Press and hold the RESET key (4) for 2 seconds or more.  
* The offset value will be cleared and reset to " 0".  
4640Q  
2857B  
2858B  
5. Turn the pulley by hand in the direction of the arrow and check at what point the needle drops to the home position  
standard plate. If the needle does not drop to point (A), carry out the following adjustments.  
NOTE:  
Be careful not to let the needle touch the home position standard plate.  
6. Loosen the bolt (5) and move the home position standard plate (1) to the left or right to adjust so that the needle drops to  
point A.  
* If play occurs in the axial direction, tighten the M6 or similar bolt (7) on the X-feed lever (6), and adjust while pulling the  
M6 or similar bolt (7).  
7. Tighten the bolt (5).  
8. Turn off the power switch and check that there is no play in the X-feed gear (8) in the axial direction.  
9. Make fine adjustments while referring to "11-18-1. X- and Y-feed motor home positions".  
KE-430F, BE-438F  
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10. ASSEMBLY  
10-8. Upper shaft mechanism  
Apply grease <GREASE BZL-300P> specified by Brother to the portions indicated by the white arrows.  
* 17, 18 and 19 should be installed after carrying out the installations in “10-10. Lower shaft mechanism”.  
* Set screws marked with * in the illustration are on the screw stop side.  
* Refer to the next page for the points to note during reassembly.  
1) Tighten the screw 5 of the thread take-up crank 4 so that it  
is aligned with the hole in the upper shaft 1.  
2) While pressing the thread take-up crank 4 so that there is  
no play in it, tighten the two set screws 7.  
Apply adhesive (Threebond 1401 or similar) to the thread  
section of the screw 5.  
C on next page  
A on next page  
Adjust while referring  
to “11-14. Adjusting  
the thread trimmer  
cam position”.  
B on next page  
Apply adhesive (Threebond  
1324 or similar) to the outer  
circumference of the joint  
assembly bearing 10.  
D on next page  
Be careful not to drop the  
balancer 20.  
E on next page  
2860B  
1. Upper shaft  
11. Set screws [2 pcs: Tighten]  
21. Balancer plate  
2. Crank rod base  
3. Pulley gear R  
4. Thread take-up crank  
5. Screw  
6. Set screw [Tighten]  
7. Set screws [2 pcs: Tighten]  
8. Set screws [2 pcs: Tighten]  
9. Set screws [2 pcs: Tighten]  
10. Joint assembly  
12. Thread trimmer cam  
13. Motor assembly  
14. Bolts [4 pcs]  
15. Set screws [2 pcs: Tighten]  
16. Set screws [2 pcs: Tighten]  
17. Crank rod washer  
18. Bolt  
22. Bolts [2 pcs]  
23. Rubber cap  
24. Bobbin winder unite  
25. Plain washers [2 pcs]  
26. Screws [2 pcs]  
(1) Eccentric wheel  
(2) Rock gear shaft assembly  
19. Set screws [2 pcs: Tighten]  
20. Balancer  
(Continued on next page.)  
KE-430F, BE-438F  
90  
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10. ASSEMBLY  
A
B
Tighten the set screw so that the screw stop a on the  
motor shaft is in the same phase as the screw stop b on  
the upper shaft 1.  
Tighten the set screw so that the screw stop c on the  
thread trimmer cam 12 is at a phase of approximately 180  
degrees from the screw stop a on the motor shaft.  
2859B  
C
Reference line  
2868B  
2891B  
With the motor assembly 13 provisionally installed, turn  
it in the direction of the arrow and then tighten the four  
bolts 14.  
Install pulley gear R 3 so that it is aligned with the  
reference line on the upper shaft 1.  
D
E
Grease  
Approx. 0.2 mm  
Approx. 0.2 mm  
2892B  
2893B  
1) Apply grease to the rock gear shaft assembly (2).  
2) Tighten the two set screws 19 so that there are  
gaps of 0.2 mm at both the front and rear of the  
crank rod assembly 2.  
With the edge of the balancer 20 pushed up against  
the edge of the cam (1), tighten the two bolts 22. In  
addition, check that there are gaps at section d (crank  
rod assembly 2 and balancer 20).  
KE-430F, BE-438F  
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91  
10. ASSEMBLY  
10-9. Needle bar mechanism  
Apply grease <GREASE BZL-300P> specified by Brother to the portions indicated by the white arrows.  
When tightening the two set screws  
11, first turn the pulley approximately  
Inside hole  
10 times to the position where it turns  
smoothly.  
0.1mm  
clearance  
Horizontal  
Screw stop  
Align the set screw 11  
with the screw stop.  
3006B  
Left-hand thread  
Fit the beveled side of the  
slide block into the groove  
on the slide block guide 1.  
After securing the needle bar, position  
the slide block guide 1 so that the  
machine pulley turns smoothly, and then  
tighten the two bolts 2.  
Align the set screw 9 with  
the screw stop.  
1. Slide block guide  
2. Bolts [2 pcs: Temporarily tighten]  
3. Washer  
4. Thread take-up lever assembly  
5. Washer  
6. Needle bar crank  
9. Set screws [3 pcs: Tighten]  
10. Set screws [2 pcs: Tighten]  
11. Set screws [2 pcs: Tighten]  
12. Rubber caps [3 pcs]  
13. Rubber cap  
14. Needle bar connecting rod assembly  
15. Screw [Tighten]  
16. Slide block  
7. Set screw collar  
8. Thread take-up support shaft assembly  
(Continued on next page.)  
KE-430F, BE-438F  
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92  
10. ASSEMBLY  
17. Needle bar clamp  
18. Needle bar [Insert from above]  
19. Screw  
With the needle bar 18 near  
its highest position, apply  
grease inside the holes.  
20. Rubber cap  
Inside  
hole  
2862B  
Cut section  
Align the needle bar 18 so that reference line A (the second lowest  
reference line on the needle bar 18) or reference line a (top  
reference line) is aligned with the lower edge of the needle bar bush  
when the machine pulley is turned to lower the needle bar 18 to its  
lowest position, and then set the cut section so that it is facing  
forward and tighten the screw 19.  
Needle bar  
bush  
4647Q  
KE-430F, BE-438F  
93  
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10. ASSEMBLY  
10-10. Lower shaft mechanism  
Apply grease < GREASE BZL-300P > or < GREASE BZL-302R > specified by Brother to the portions indicated by the white  
arrows.  
1. Shuttle race base assembly  
2. Oil tube support  
3. Screw  
4. Cord holder U3  
5. Screw  
6. Adjusting stud  
7. Set Screw [Tighten]  
GREASE BZL-302R  
GREASE BZL-302R  
2869B  
(Continued on next page.)  
KE-430F, BE-438F  
94  
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10. ASSEMBLY  
* Set screws marked with * in the illustration are on the screw stop side.  
While pushing the rock gear shaft assembly 9 and rock gear shaft  
R 10 so that there is no play in the axial direction, tighten the two  
set screws 11.  
GREASE BZL-300P  
Notch facing  
straight down  
2870B  
Take up  
the play  
Take up  
the play  
Align the  
angles of  
the grooves  
Gap distribution  
2871B  
8. Rock gear  
9. Rock gear shaft assembly  
10. Rock gear shaft R  
11. Set screws [2 pcs: Tighten]  
12. Set screws [2 pcs: Tighten]  
(Continued on next page.)  
KE-430F, BE-438F  
95  
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10. ASSEMBLY  
Adjust while referring to “11-17. Adjusting  
the backlash amount (play) of the lower  
shaft gear”.  
While pushing the bearing bush  
assemblies 14 and 17 so that  
there is no play in the axial  
direction, tighten the four set  
screws 18.  
2872B  
Gap distribution  
Align  
Align  
13. Oil seal  
14. Bearing bush assembly  
15. Lower shaft assembly  
16. Rubber seal L  
17. Bearing bush assembly  
18. Set screws [4 pcs: Tighten]  
19. Driver  
Take up  
the play  
Take up  
the play  
20. Bolt [Temporarily tighten]  
21. Set screws [4 pcs]  
22. Positioning plate  
23. Screws [4 pcs]  
1) The oil seal 13 and rubber seal L 16 cannot be reused, so have new parts  
ready for use.  
2) Make sure that the installation directions for the oil seal 13 and rubber seal  
L 16 are correct.  
3) Apply grease (BZL-500 grease) to the outer circumferences of the oil seal  
13 and rubber seal L 16 when inserting the oil seal 13 and rubber seal L  
16 into the holes in the bed.  
(Temporarily tighten)  
2873B  
2874B  
(Continued on next page.)  
KE-430F, BE-438F  
96  
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10. ASSEMBLY  
After applying sealant (Threebond 1215) to the  
shaded area, install the gear cover 24 by tightening  
the five screws 25 at a torque of 1 Nm.  
24. Gear cover  
25. Screws [5 pcs]  
26. Grease support F  
27. Screws [2 pcs]  
28. Rubber caps [2 pcs]  
(1) Rubber cap  
2875B  
2876B  
Remove the rubber cap (1) and apply grease,  
and then reinstall the rubber cap (1).  
1) Turn the pulley to set the needle bar to  
near its lowest position.  
2) Insert the grease nozzle (3) into the  
gear box as far as the lower shaft gear  
(2), and apply 16g of grease (BZL-500  
grease).  
16g of grease  
Insert as far as this  
2877B  
KE-430F, BE-438F  
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97  
10. ASSEMBLY  
10-11. Lubrication  
Adjust while referring to “11-6.  
Rotary hook lubrication amount”.  
1. Oil tank assembly  
2. Oil tank nut  
3. Oil tank plate  
4. Plain washers [2 pcs]  
5. Bolts [2 pcs]  
6. Bolts [2 pcs]  
2878B  
10-12. Shuttle hook mechanism  
2879B  
2880B  
1. Needle bar thread guide  
2. Needle  
3. Set screw  
4. Shuttle hook  
5. Shuttle race base  
6. Shuttle race base setting claw [Close]  
7. Bobbin case assembly  
After installing the shuttle hook 4, carry out the adjustments in “11-3. Adjusting  
the needle bar lift amount and the driver needle guard” and “11-4. Adjusting the  
needle clearance”.  
KE-430F, BE-438F  
98  
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10. ASSEMBLY  
10-13. Thread trimmer mechanism (2)  
Apply grease to the portions indicated by the white arrows.  
<Seen from the right>  
<Seen from below>  
2881B  
1) Apply grease to the pin (1) of the movable knife, and  
then insert it into the hole in the movable knife  
connecting plate (2), and then while inserting the pin  
(3) of TN-connecting plate assembly F into the hole in  
the thread nipper D assembly (4), install the needle  
plate 14.  
2) Check that the center of the needle hole and the tip of  
the needle are aligned.  
2883B  
2882B  
1. Fixed knife  
9. Movable knife shoulder screw  
2. Plain washers [2 pcs]  
3. Spring washers [2 pcs]  
4. Screws [2 pcs]  
5. Movable knife spacer  
6. Movable knife assembly  
7. Movable knife collar  
8. Thrust collar  
* 10. Bobbin thread clamp spring [KE-430F only]  
* 11. Plain washers [2 pcs] [KE-430F only]  
* 12. Spring washers [2 pcs] [KE-430F only]  
* 13. Screws [2 pcs] [KE-430F only]  
14. Needle plate  
15. Screws [2 pcs]  
16. Flat screws [2 pcs]  
For the BE-438F, parts marked with * are supplied as accessories. Install  
them if necessary.  
KE-430F, BE-438F  
99  
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10. ASSEMBLY  
10-14. Work clamp arm mechanism (KE-430F)  
Push the work clamp arm lever plate (3) in the direction  
of the arrow to raise the work clamp (4) by about 5  
mm, set so that there is a clearance of 0.1 mm  
between the underside of the work clamp arm support  
plate (5) and the slider (1), and then secure the slider  
(1) of the work clamp support shaft (6) with the set  
screw (2).  
2885B  
1. Feed plate  
2. Screws [2 pcs]  
3. Work clamp arm assembly  
4. Plain washers [2 pcs]  
5. Bolts [2 pcs]  
(1) Slider  
(2) Set screw  
(3) Work clamp arm lever plate  
(4) Work clamp  
(5) Work clamp arm support plate  
(6) Support shaft  
(7) Needle hole  
2884B  
After installing, carry out test feeding and check that the needle hole (7) is not inside the work clamp (4) and the  
frame of the feed plate 1. If the needle hole (7) is inside the frame, adjust the position of the work clamp arm  
assembly 3 and the feed plate.  
Apply grease to all sliding parts during assembly.  
It is recommended that you  
use commercially-available  
SHIN  
NISSEKI  
Power  
Knock WB2 as the grease  
to be applied to the sliding  
part of the work clamp.  
Grease  
2887B  
a. Sliding portion of the work clamp  
(Apply small amount of grease.)  
b. Sliding portion of the work clamp arm lever shaft  
and the work clamp arm levers R and L  
c. Round portion of the work clamp arm lever plate  
d. Slider of work clamp support shaft  
2886B  
KE-430F, BE-438F  
100  
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10. ASSEMBLY  
10-15. Work clamp arm mechanism (BE-438F)  
1. Feed plate  
2. Screws [2 pcs]  
3. Button clamp holder  
4. Button clamp holder shaft  
5. Set screws [2 pcs]  
6. Nuts [2 pcs]  
Adjusting screw  
Compression spring  
2888B  
After installing, check that the needle passes into the button hole without touching the button. (Refer to “11-13.  
Adjusting the position of the button clamp (BE-438F)”.)  
Apply grease to the portions indicated by the arrows during assembly.  
2889B  
KE-430F, BE-438F  
101  
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10. ASSEMBLY  
10-16. Covers  
2890B  
1. Shuttle race cover assembly  
2. Washer, wave spring [2 pcs]  
3. Shoulder screws, 8-2 [2 pcs]  
4. Face plate assembly  
5. Screws [3 pcs]  
8. Side cover  
9. Screws [4 pcs]  
10. Rear cover  
11. Screws [4 pcs]  
12. Top cover  
6. Eye guard assembly  
7. Bolts [2 pcs]  
13. Screws [4 pcs]  
KE-430F, BE-438F  
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102  
11. ADJUSTMENT  
11. ADJUSTMENT  
CAUTION  
Maintenance and inspection of the sewing machine  
Hold the machine head with both hands when tilting  
should only be carried out by a qualified technician.  
it back or returning it to its original position.  
Furthermore, after tilting back the machine head, do  
not push the face plate side or the pulley side from  
above, as this may cause the machine head to  
topple over, which may result in personal injury or  
damage to the machine.  
Ask your Brother dealer or a qualified electrician to  
carry out any maintenance and inspection of the  
electrical system.  
Turn off the power switch and disconnect the power  
cord from the wall outlet at the following times,  
otherwise the machine may operate if the foot  
switch is depressed by mistake, which may result in  
injury.  
If the power switch needs to be left on when carrying  
out some adjustment, be extremely careful to  
observe all safety precautions.  
If any safety devices have been removed, be  
absolutely sure to re-install them to their original  
positions and check that they operate correctly  
before using the machine.  
When carrying out inspection, adjustment and  
maintenance  
When replacing consumable parts such as the  
rotary hook  
11-1. Standard thread tension  
KE-430F  
Use  
BE-438F  
Medium-weight  
materials (-03)  
#50 or  
equivalent  
#50 or  
Knitted wear  
(-0K)  
Foundation  
garments (-0F)  
#60 or  
Heavy-weight  
materials (-05)  
#60 or  
equivalent  
#80 or  
equivalent  
0.8 - 1.2  
[80 - 120]*1  
Upper thread  
Lower thread  
#30 or equivalent #60 or equivalent  
#50 or equivalent #60 or equivalent  
equivalent  
#60 or  
equivalent  
equivalent  
Upper thread tension (N)  
[Tension value]  
1.2 – 1.8  
0.5 - 1.2  
[70 - 130]*1  
[50 - 150]*1  
Lower thread tension (N)  
Pre-tension (N)  
Needle  
0.2 - 0.3  
0.05 - 0.3  
DP x 5KN #11  
0.2 - 0.3  
0.1 - 0.4  
DP x 5 #14  
DP x 5 #9  
DP x 17NY #19  
DP x 17NY #12  
*1: This is the tension value when the pretension is 0.05 N.  
KE-430F, BE-438F  
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103  
11. ADJUSTMENT  
11-1-1. Upper and lower thread tension  
2318B  
2319B  
<Foot switch>  
Backward depression position  
Neutral  
<2-pedal foot switch(option)>  
Work clamp switch (2-step)  
Start switch  
2923B  
2924B 2925B  
<Operating the upper thread tension>  
When using a foot switch  
In the sewing standby condition and during test operation standby, the thread tension in the TENSION display (2) which has  
been set for the section appearing in the SECTION No. display (1) on the operation panel will be output while the foot switch  
is being depressed backward.  
When the foot switch is returned to the neutral position, the thread tension will be released.  
* If the work clamp/button clamp is lowered when the foot switch is returned to the neutral position, the thread tension output  
will be maintained.  
When using a 2-pedal foot switch (option)  
In the sewing standby condition and during test operation standby, the thread tension which has been set in the SECTION No.  
1 (sewing start section) will be output while the work clamp/button clamp is lowered (while the work clamp switch is being  
depressed) regardless of the section which appears in the SECTION No. display (1) on the operation panel.  
When the work clamp switch is released, the thread tension will be released.  
* If the work clamp/button clamp is lowered when the work clamp switch is released, the thread tension output will be  
maintained.  
* The above operations are enabled when memory switch No. 072 is set to “1” or “2”.  
KE-430F, BE-438F  
104  
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11. ADJUSTMENT  
11-1-2. Thread take-up spring  
KE-430F  
Foundation  
garments (-0F)  
6 - 11  
Use  
BE-438F  
Medium-weight  
Knitted wear  
(-0K)  
Heavy-weight  
materials (-05)  
materials (-03)  
Thread take-up spring  
height (mm)  
6 - 11  
Thread take-up spring  
tension (N)  
0.2 - 0.4  
0.6 - 1.0  
0.15 – 0.35  
<Thread take-up spring height>  
Lower  
Higher  
Loosen the set screw (1) and turn the tensioner body to  
adjust the thread take-up spring height.  
2320B  
<Thread take-up spring tension>  
Stronger  
Weaker  
2321B  
Adjust by turning the shaft (2) with a screwdriver.  
NOTE:  
When the spring height (stroke) is great or the spring tension is insufficient, it may cause the thread end length to vary after  
thread trimming.  
KE-430F, BE-438F  
105  
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11. ADJUSTMENT  
11-1-3. Arm thread guide C  
The standard position of arm thread guide C (1) is when the  
screw (2) is aligned with the position of the reference line.  
To adjust the position, loosen the screw (2) and then move  
arm thread guide C (1).  
When sewing heavy-weight materials, move arm thread  
guide C (1) to the left. (The thread take-up amount will  
increase.)  
Increase  
Decrease  
When sewing light-weight materials, move arm thread  
guide C (1) to the right. (The thread take-up amount will  
decrease.)  
Reference  
line  
2322B  
11-1-4. Needle bar bush thread guide D  
Check that needle bar bush thread guide D (1) is at the  
middle of the needle bar (2).  
NOTE:  
If needle bar bush thread guide D (1) is not in the correct  
position, the thread may pull out or skipped stitches may  
occur.  
2325B  
11-2. Adjusting the needle bar height  
2326B  
2904B  
1. Loosen the two bolts (1), and then remove the eye guard assembly (2).  
2. Turn the pulley in the direction of the arrow to move the needle bar to the lowest position. Then remove the rubber cap (4),  
loosen the screw (5) and then move the needle bar up or down to adjust so that the second reference line from the bottom  
of the needle bar (reference line A) is aligned with the lower edge of the needle bar bush (3).  
* If using a DP x 5 needle, use the highest reference line (reference line a).  
KE-430F, BE-438F  
106  
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11. ADJUSTMENT  
11-3. Adjusting the needle bar lift amount and the driver needle guard  
2926B  
2544Q  
Center of the needle  
Tip  
2927B  
0135Q  
1. Turn the pulley in the direction of the arrow to raise the needle bar from the lowest position until the lowest reference line  
on the needle bar (reference line B) is aligned with the lower edge of the needle bar bush (1).  
* If using a DP x 5 needle, align with reference line b which is the second reference line from the top.  
NOTE:  
Check that the wiper and the needle do not touch when lowering the needle bar. If the wiper is in a position where it will  
touch the needle, move the wiper to the right by hand so that it does not touch the needle.  
2. Loosen the bolt (2).  
3. Move the driver (3) back and forth to adjust so that it is touching the needle when the tip of the rotary hook is aligned with  
the center of the needle, and then tighten the bolt (2).  
NOTE:  
If the needle contact pressure from the driver (3) is too great, skipped stitches may occur. On the other hand, if the  
driver (3) is not touching the needle, the tip of the inner rotary hook will obstruct the needle, resulting in an excessively  
high amount of friction.  
11-4. Adjusting the needle clearance  
0.01 - 0.08mm  
0138Q  
2328B  
Turn the pulley in the direction of the arrow to align the tip of the rotary hook with the needle center line. Then loosen the set  
screw (1) and turn the rotary hook adjustment shaft (2) to adjust so that the clearance between the tip of the needle and the  
rotary hook is 0.01 to 0.08 mm.  
KE-430F, BE-438F  
107  
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11. ADJUSTMENT  
11-5. Adjusting the shuttle race thread guide  
2329B  
Install the shuttle race thread guide (1) by pushing it in the direction of the arrow so that the needle groove is aligned with the  
center of the needle plate hole.  
NOTE:  
If the shuttle race thread guide is in the wrong position, thread breakages, soiled thread or thread entanglements may  
occur.  
The position of the shuttle race thread guide is adjusted at the time of shipment from the factory. It should not be changed if  
at all possible.  
11-6. Rotary hook lubrication amount  
KE-430F (-05 specifications)  
KE-430F (-03, -0K, -0F specifications), BE-438F  
More  
oil  
More  
oil  
Less  
oil  
Less  
oil  
2729B  
1. Tilt back the machine head.  
2. Loosen the two bolts (1), and then adjust by moving the oil tank assembly (2) up or down.  
KE-430F (-05 specifications)  
The standard position is when the centers of the two bolts (1) are aligned with the reference line on the oil tank plate (3).  
KE-430F (-03, -0K, -0F specifications), BE-438F  
The standard position is when the oil tank assembly (2) is as far forward as possible as shown in the illustration.  
<If you would like to increase the lubrication amount  
further>  
Remove the two rubber caps 5.5 (4).  
* Keep the two rubber caps 5.5 (4) safely so that they do  
get lost.  
2905B  
KE-430F, BE-438F  
108  
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11. ADJUSTMENT  
11-7. Adjusting the thread trimming  
Push  
down  
A
2730B  
1. Remove the top cover, side cover and rear cover.  
2. Turn the pulley in the direction of the arrow to move the needle bar to its lowest position.  
3. Loosen the three bolts (1), and then set the clearance (section A) between the rubber and the plunger to 0.65 mm. While  
holding them in this position, move the thread trimmer solenoid assembly (2) back and forth.  
4. Set the thread trimmer collar (3) so that it is touching against the outside of the thread trimmer cam (4), and then while  
pushing the thread trimmer solenoid assembly (2) down, tighten the three bolts (1).  
5. Install the top cover, side cover and rear cover.  
B
A
2957B  
* Set so that the clearance (section A) is 0 mm, and then check that there is a clearance of 0.1 to 0.3 mm between the thread  
trimmer collar (3) and the outside of the thread trimmer cam (4) (section B).  
KE-430F, BE-438F  
109  
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11. ADJUSTMENT  
11-8. Adjusting the position of the movable knife  
2732B  
<Thread trimmer cam seen from the side>  
Reverse position  
2733B  
1. Remove the top cover and the side cover.  
2. Turn the pulley by hand in the direction of the arrow to move the needle bar to its lowest position, and then turn the cam  
shaft (1) so that the thread trimmer collar (2) goes into the groove in the thread trimmer cam (3).  
3. Tilt back the machine head.  
4. With the thread trimmer collar (2) inserted into the groove of the thread trimmer cam (3), turn the pulley by hand in the  
direction of the arrow to set the thread trimmer driving lever (4) to the reverse position (when the thread take-up (5) is close  
to its lowest position).  
Touching  
2734B  
2958B  
5. Loosen the bolt (6).  
6. Move thread trimmer rod H assembly(7) back and forth to adjust so that the ridge line on the movable knife (8) is touching  
the edge of the index mark (9), and then while keeping the parts in this position, tighten the bolt (6).  
7. Turn the pulley so that the thread trimmer driving lever (4) is in the reverse position, and then while pushing thread trimmer  
rod V assembly (10) in the direction of the arrow so that the thread trimmer collar (2) is touching the inside of the thread  
trimmer cam (3), check if the ridge line on the movable knife (8) is touching the edge of the index mark (9).  
8. Return the machine head to its original position, and then install the top cover and the side cover.  
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11. ADJUSTMENT  
11-9. Replacing the movable knife and fixed knife  
2331B  
1. Open the shuttle race cover, remove the two screws (1), and then remove the feed plate (2).  
2. Remove the two screws (3) and the two flat screws (4), and then remove the needle plate (5).  
3. Remove the movable knife (6) and the fixed knife (7).  
2332B  
2333B  
4. Install new fixed knife (7) in the position shown in the illustration.  
5. Apply grease to the outside of the movable knife collar (8) and to the movable knife shoulder screw (9), and then install the  
new movable knife (6) together with the thrust washer (10) and movable knife spacer (11).  
6. Check that the movable knife (6) and the fixed knife (7) cut the thread cleanly.  
7. Apply grease to the pin (12) of the movable knife, and then insert it into the hole in the movable knife connecting plate (13),  
and then while inserting the pin (15) of TN-connecting plate assembly F into the hole in the thread nipper D assembly (14),  
install the needle plate (5).  
8. Check that the center of the needle hole and the tip of the needle are aligned.  
Select an accessory movable knife spacer (11) which allows  
the movable knife (6) to cross over the fixed knife (7) with a  
force that is as gentle as possible while still allowing the  
thread to be trimmed.  
* Move the movable knife (6) as shown in the illustration and  
check that it trims the thread cleanly.  
NOTE:  
If the movable knife spacer (11) is too thick, it will not be  
possible to trim the thread.  
2334B  
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11. ADJUSTMENT  
11-10. Adjusting the work clamp lift amount (KE-430F)  
Adjust so that the actual maximum lift amount for the work clamp is 17 mm above the top of the needle plate when the  
maximum work clamp height has been set to 17 mm using the operation panel (refer to “Work clamp lifting height” on P.17).  
2385B  
1. Loosen the bolt (1) and move the work clamp arm lever plate (2) up or down to adjust.  
2. Apply grease to the bottom of the work clamp lifter plate assembly (3), to the top of the work clamp arm lever plate (2) and  
to the sliding part of the work clamp (4) (grease is already applied at the time of shipment), and check that the movement  
becomes easier.  
11-11. Adjusting the button clamp lift amount (BE-438F)  
Adjust so that the actual maximum lift amount for the button clamp is 13 mm above the top of the needle plate when the  
maximum work clamp height has been set to 13 mm using the operation panel (refer to “Work clamp lifting height” on P.17).  
2386B  
Remove the compression spring (1), loosen the screw (2) and adjust the button clamp holder hook assembly (3) by moving it  
up and down.  
* If the button clamp lift amount is too large, the button clamp will not be raised.  
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11. ADJUSTMENT  
11-12. Adjusting the holding pressure (BE-438F)  
Loosen the nut (1) and turn the nut (2) to the point where it is  
just tight enough that the material will not slip out of place  
when it is slightly pulled (keeping pressure as slight as  
possible).  
2387B  
11-13. Adjusting the position of the button clamp (BE-438F)  
1. Loosen the two bolts (1) and adjust the button clamp  
base (2) by moving it.  
2. Carry out test feeding to check that the needle will go  
through the button hole with no contact.  
2388B  
11-14. Adjusting the thread trimmer cam position  
1. Remove the top cover.  
2. Loosen the two set screws (1), and then adjust the  
position of the thread trimmer cam (3) so that the distance  
between the edge of the collar shaft (2) and the edge of  
the thread trimmer cam (3) is 0.5 - 0.7 mm. After adjusting,  
tighten the two set screws (1).  
2736B  
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11. ADJUSTMENT  
11-15. Adjusting the thread wiper  
<Thread wiper height adjustment>  
Loosen the two screws (2) and adjust  
the thread wiper (1) so that the  
clearance between the top of the thread  
wiper (1) and the tip of the needle is  
approximately 2 mm when the thread  
wiper (1) is aligned with the center of  
the needle at the needle bar stop  
position.  
NOTE:  
Check that the needle bar thread guide  
(3) and the thread wiper base shaft (4)  
are not touching at this time.  
Approx. 2 mm  
2338B  
2906B  
<Thread wiper racking width adjustment>  
1. Remove the side cover.  
2. Loosen the set screw (1) and  
adjust so that the distance from the  
thread wiper to the center of the  
needle is as shown in the  
illustration.  
Approx. 25 mm Approx. 20 mm  
2336B  
4683Q  
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11. ADJUSTMENT  
11-16. Adjusting the tension release amount  
2737B  
A
B
2738B  
2928B  
2739B  
1. Remove the two screws (1), and then remove the solenoid cover (2).  
2. Remove the two screws (3).  
3. With the plunger (5) of the tension solenoid (4) pushed all the way in, loosen the nut (8) and turn the bolt (6) to adjust so  
that the end of the bolt (6) is 11.5 m from the side of the solenoid setting plate (7). (Figure A)  
4. With the tension solenoid (4) installed to the arm with the two screws (3), insert spacers or similar to operate the thread  
tension so that distance (a) is 1.9±0.1 mm. (Figure B)  
* Select a spacer that can maintain the distance (a) without becoming bent when the tension solenoid (4) operates.  
* Refer to “11-1-1. Upper and lower thread tension” for details on operating the thread tension.  
5. Loosen the bolt (9) and adjust the sideways position of the set collar (10) so that the opening amount (b) for the tension  
discs is 0 mm. After adjusting, retighten the bolt (9).  
* Make sure that the movement range for the set collar (10) does not pass the edge of the shaft (11) at this time.  
6. Release the thread tension.  
Check that the opening about (b) for the tension discs is 0.8 to 1.5 mm.  
7. Install the solenoid cover (2) with the two screws (1).  
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11. ADJUSTMENT  
11-17. Adjusting the backlash amount (play) of the lower shaft gear  
1. Tilt back the machine head.  
2. Open the shuttle race base cover.  
3. Remove the shuttle race base, shuttle hook and bobbin  
case.  
4. Remove the two screws (with washer) (1), and then  
remove grease holder F (2).  
2998B  
Backlash amount  
becomes smaller  
Backlash amount  
becomes greater  
2959B  
5. Remove the two rubber caps (3).  
6. Loosen the two set screws (4) and the two set screws (5).  
7. Use the tip of a screwdriver or similar to adjust the front and back rock gear collars (6) so that the backlash amount (play)  
is 0.05 to 0.2 mm.  
*
Alternately move the phase of the front and back rock gear collars (6) slightly to adjust so that the phase of the front  
and back rock gear collars (6) is about the same (within ±10 degrees).  
If the backlash amount (play) is small, it will result in wear in the rock gear (7) and the lower shaft gear (8).  
If the backlash amount (play) is large, it will result in wear in the rock gear (7) and the lower shaft gear (8) and also  
result in increased noise during sewing.  
8. First tighten the two set screws (4), and then tighten the two set screws (5).  
9. Recheck that the backlash amount (play) which was adjusted in step 7 above is correct.  
10. Install any parts which were removed from step 5 onward by carrying out the removal procedure in reverse.  
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11. ADJUSTMENT  
11-18. Adjusting the home position  
11-18-1. X- and Y-feed motor home positions  
With the power switch turned off, turn the pulley in the direction of the arrow to set the needle to the needle up stop  
position (near the highest thread take-up position).  
1
2
While pressing the  
the power switch.  
keys simultaneously, turn on  
"orG" will flash in the PROGRAM No. display and the  
currently-recorded offset value will be displayed in the  
menu display.  
2788B 2789B  
Press the SELECT key so that either the X-SCALE  
indicator or the Y-SCALE indicator illuminates.  
3
4
2790B 2401B  
Depress the foot switch to the 2nd step (for a 2-pedal foot switch,  
depress the start switch). (*1)  
Home position detection for the X-feed or Y-feed motor will be  
2nd step  
carried out based on the currently-displayed offset value.  
"orG" will illuminate in the PROGRAM No. display.  
*
If you press the RESET key for 2 seconds or more at this time, the  
offset value will be reset to "0" and home position detection for the  
X-feed or Y-feed motor will be carried out.  
4441Q 2791B 2634B  
(*1) When “UP” appears in the menu display and the CAUTION indicator flashes and the buzzer sounds, turn the pulley in  
the direction of the arrow to move the needle bar to the up stop position (near the highest thread take-up position).  
(Continued on next page.)  
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11. ADJUSTMENT  
Use the home position standard plate and press the  
keys to change the offset value (-50 to 50) so that the  
needle drops at the home position.  
or  
5
The X-feed or Y-feed motor will operate according to  
the offset value.  
The offset value in the menu display will flash, and  
“JoG” will illuminate in the TENSION display.  
For example, if the offset value is 5  
2792B 2793B 2794B 2795B  
Depress the foot switch to the 2nd step (for a 2-pedal foot  
switch, depress the start switch) to provisionally confirm  
the offset value. (*1)  
Feed motor home position detection will be carried out  
based on the currently-displayed offset value. Check  
the home position.  
6
2nd step  
“JoG” will disappear from the TENSION display.  
4441Q 2796B  
Repeat steps 5 and 6 to set the home position to the correct position.  
Press the ENTER key to confirm the offset value.  
7
8
The offset value will illuminate in the menu display.  
* If the offset value has not been provisionally confirmed  
(if “JoG” is illuminated), the invalid buzzer will sound.  
2414B  
End adjustment mode.  
Press the TEST key.  
9
The display will return to the normal display and the  
sewing machine will switch to home position detection  
standby.  
2404B  
TEST indicator switches off  
(*1) When “UP” appears in the menu display and the CAUTION indicator flashes and the buzzer sounds, turn the pulley in  
the direction of the arrow to move the needle bar to the up stop position (near the highest thread take-up position).  
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11. ADJUSTMENT  
11-18-2. Work clamp lift motor home position  
With the power switch turned off, turn the pulley in the direction of the arrow to set the needle to the needle up stop  
position (near the highest thread take-up position).  
1
2
While pressing the  
the power switch.  
keys simultaneously, turn on  
"orG" will flash in the PROGRAM No. display and the  
currently-recorded offset value will be displayed in the  
menu display.  
2797B 2789B  
Press the SELECT key until the THREAD/CLAMP indicator  
illuminates.  
3
4
2798B 2401B  
Depress the foot switch to the 2nd step (for a 2-pedal foot switch,  
depress the start switch).  
Home position detection for the work clamp lift motor will be carried  
out based on the currently-displayed offset value.  
"orG" will illuminate in the PROGRAM No. display.  
2nd step  
*
If you press the RESET key for 2 seconds or more at this time, the  
offset value will be reset to "0" and home position detection for the  
work clamp lift motor will be carried out.  
4441Q 2634B  
1. Remove the top cover. Press the  
key until the  
5
TR-driving lever (1) is at the position where it starts  
moving backward to set the offset value (-80 to 20).  
(The TR-driving lever (1) will operate according to the  
offset value.)  
The offset value in the menu display will flash, and  
“JoG” will illuminate in the TENSION display.  
2. Press the  
key once to reduce the offset value by 1.  
For example, if the offset value is -2  
3007B 2800B 2801B 2899B  
(Continued on next page.)  
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11. ADJUSTMENT  
Depress the foot switch to the 2nd step (for a 2-pedal foot switch,  
depress the start switch) to provisionally confirm the offset value.  
6
Work clamp lift motor home position detection will be carried out  
based on the currently-displayed offset value. Check the home  
position.  
2nd step  
“JoG” will disappear from the TENSION display.  
4441B  
Repeat steps 5 and 6 to set the home position to the correct position.  
7
8
Press the ENTER key to confirm the offset value.  
The offset value will illuminate in the menu display.  
* If the offset value has not been provisionally confirmed  
(if “JoG” is illuminated), the invalid buzzer will sound.  
2414B  
End adjustment mode.  
Press the TEST key.  
9
The display will return to the normal display and the  
sewing machine will switch to home position detection  
standby.  
2404B  
TEST indicator switches off  
Turn off the power switch and install the top cover.  
10  
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11. ADJUSTMENT  
11-18-3. Thread nipper motor home position  
With the power switch turned off, turn the pulley in the direction of the arrow to set the needle to the needle up stop  
position (near the highest thread take-up position).  
1
Open the shuttle race base cover and remove the shuttle race base, shuttle hook and bobbin case assembly.  
2
3
While pressing the  
the power switch.  
keys simultaneously, turn on  
"orG" will flash in the PROGRAM No. display and  
the currently-recorded offset value will be displayed  
in the menu display.  
2802B 2789B  
Press the SELECT key until the TENSION indicator  
illuminates.  
4
5
2803B 2401B  
Depress the foot switch to the 2nd step.  
Home position detection for the thread nipper motor will be carried out  
based on the currently-displayed offset value.  
"orG" will illuminate in the PROGRAM No. display.  
2nd step  
*
If you press the RESET key for 2 seconds or more at this time, the  
offset value will be reset to "0" and home position detection for the  
thread nipper motor will be carried out.  
4441Q 2634B  
Press the  
or  
key to change the offset value (-50 to 50) so that  
6
the hole (2) in the needle hole plate is near the center of the hole in  
the thread nipper D assembly (1).  
For example, if the offset value is 8  
The thread nipper will operate in accordance with the offset  
value.  
The offset value in the menu display will flash, and “JoG” will  
illuminate in the TENSION display.  
2804B 2805B  
(Continued on next page.)  
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11. ADJUSTMENT  
Depress the foot switch to the 2nd step to provisionally confirm the  
offset value.  
7
Thread nipper motor home position detection will be carried out  
based on the currently-displayed offset value. Check the home  
position.  
2nd step  
“JoG” will disappear from the TENSION display.  
4441Q 2806B  
Press the F1, F2 and F3 keys and check the respective positions.  
When the F1 key is pressed, the thread nipper D assembly (1)  
will move to the home position.  
8
* “F1” will illuminate in the SECTION No. display.  
When the F2 key is pressed, the thread nipper D assembly (1)  
will move to the thread nipping position.  
* “F2” will illuminate in the SECTION No. display.  
Check that the thread is being firmly held at this time. If the  
thread is not being held, adjust the home position (F1) so that the  
hole in the thread nipper D assembly (1) is not inside the hole (2)  
in the needle hole plate.  
When the F3 key is pressed, the thread nipper D assembly (1)  
will move to the thread release position.  
* “F3” will illuminate in the SECTION No. display.  
2807B 2808B 2809B  
Depress the foot switch to the 2nd step to return the thread nipper  
motor to the home position.  
9
The SECTION No. display will stop illuminating.  
2nd step  
4441Q 2810B  
Repeat steps 6 to 9 to set the home position.  
10  
11  
Press the ENTER key to confirm the offset value.  
The offset value will illuminate in the menu display.  
* If the offset value has not been provisionally  
confirmed (if “JoG” is illuminated), the invalid buzzer  
will sound.  
2414B  
End adjustment mode.  
Press the TEST key.  
12  
13  
The display will return to the normal display and the  
sewing machine will switch to home position  
detection standby.  
TEST indicator switches off  
2404B  
Turn off the power switch, install the shuttle race base, shuttle hook and bobbin case assembly, and then close the  
shuttle race base cover.  
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11. ADJUSTMENT  
11-19. Adjusting the main shaft motor standard position  
Remove the needle, the needle bar thread guide and the feed plate.  
1
While pressing the [+ -] keys simultaneously, turn on the  
power switch.  
2
"Mot" will illuminate in the PROGRAM No. display and  
"Set" will illuminate in the menu display.  
2811B 2818B  
Turn the pulley one full turn in the direction of the arrow.  
" UP" will flash in the SECTION No. display and  
3
"
dn" will flash in the TENSION display.  
*
If nothing is displayed, turn the pulley by hand until  
the displays appear.  
2813B  
Turn the pulley in the direction of the arrow to lower the  
needle bar from its highest position to the height shown in  
the illustration at left.  
4
2814B  
Press the ENTER key.  
5
" UP" will illuminate in the SECTION No. display and  
"
dn" will illuminate in the TENSION display.  
*
If the displays are still flashing, carry out step 4 once  
more.  
2414B 2815B  
(Continued on next page.)  
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11. ADJUSTMENT  
End adjustment mode.  
Press the TEST key.  
6
The display will return to the normal display and the  
sewing machine will switch to home position detection  
standby.  
2404B  
TEST indicator switches off  
Turn off the power switch and install the needle, the needle bar thread guide and the feed plate.  
7
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11. ADJUSTMENT  
11-20. Correcting the digital tension output  
The procedure for correcting the tension (output) from the  
digital tension involves carrying out the procedure of measuring  
the actual upper thread tension and entering the measured  
value using the operation panel four times.  
No. of  
measurement  
Standard tension value  
for digital tension (gf)  
1st  
2nd  
3rd  
20  
80  
The standard values for the four tensions for the digital tension  
vary for each measurement as shown in the table at right.  
By entering the actual measurement values each time, the  
digital tension output will be automatically corrected, and the  
tension that corresponds to the setting can then be obtained  
when sewing.  
180  
4th  
330  
1. Adjust the pretension to 5 to 7 gf (0.05 to 0.07 N).  
* At this time, use the TOYOBO polyester #50 (white) thread  
which is recommended by Brother.  
1
2. Thread the upper thread as shown in the illustration at left.  
NOTE:  
Do not thread the thread through the thread take-up spring.  
* If you do not observe the above note, the digital tension output  
correction may not be carried out correctly.  
2816B 2817B  
2
While pressing the  
switch.  
keys simultaneously, turn on the power  
* Keep pressing the  
key until the model name is displayed  
and the buzzer beeps once.  
The tension discs will close, and “tEn” will illuminate in the  
PROGRAM No. display, “ 1” will illuminate in the SECTION No.  
display, and a value from “0” to “39” will illuminate in the menu display  
respectively.  
* The value in the menu display may vary for individual sewing  
machines.  
2819B 2818B  
(Continued on next page.)  
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11. ADJUSTMENT  
Use a tension gauge to measure the upper thread tension as shown  
in the illustration at left.  
3
Press the  
or  
key to increase or decrease the value appearing  
in the menu display until it corresponds with the measurement value.  
For example, if the upper thread  
tension is 28 gf  
*
*
Round off any decimal places in the measurement value.  
The units for the measurement values which are input to the  
operation panel are “gf”. If the values are measured using units of  
“N”, convert using a factor of 1 N 100 gf.  
*
The value will illuminate in the menu display, and it will change to  
flashing if it is increased or decreased.  
2820B 2821B  
1. Press the ENTER key.  
2. Open the tension discs and then close them again.  
4
"tEn" will illuminate in the PROGRAM No. display, the number of  
the measurement will illuminate in the SECTION No. display, and  
the allowable setting range will illuminate in the menu display.  
(Refer to the table below.)  
* The value in the menu display may vary for individual sewing  
machines.  
NOTE:  
If you need to enter a value which is greater than the allowable setting  
range in the table, problems may occur with the digital tension.  
Refer to “11-16. Adjusting the tension release amount” and then  
repeat the procedure from step 1.  
2414B  
Repeat steps 3 and 4 to set the 2nd to 4th measurements of the upper thread tension.  
5
6
When the ENTER key is pressed after the 4th measurement, “END”  
will appear in the menu display and the tension discs will open.  
2822B  
Turn off the power switch.  
7
Standard  
value (gf)  
Allowable setting  
range (gf)  
SECTION No. display  
Setting value  
1st  
2nd  
3rd  
4th  
20  
[039]  
80  
[40119]  
[120239]  
[240419]  
180  
330  
Number of measurement  
2819B  
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11. ADJUSTMENT  
11-21. Checking the machine head switch  
1. Turn on the power switch.  
2. Check that no error numbers appear on the operation  
panel.  
<If error [E050], [E051] or [E055] is displayed>  
If the machine head switch (1) is not turned on, error [E050],  
[E051] or [E055] will occur.  
Use the screw (2) to adjust the installation position of the  
machine head switch as shown in the illustration.  
2295B  
11-22. Setting method for standard depression strokes (Foot switch)  
Use the following procedure to set the operating positions for the depression stroke.  
Signal setting entry  
While pressing the  
switch.  
and  
key, turn on the power  
1
"PdL" will illuminate in the PROGRAM No. display  
and “1.Frt” will illuminate will illuminate in the menu  
display.  
2826B  
Memorizing the maximum forward position  
With the foot switch depressed all the way forward, wait  
until the value in the TENSION display stabilizes and  
then press the ENTER key.  
2
* XXX indicates the treadle depression voltage.  
2827B  
Memorizing the neutral position  
With your foot released from the foot switch, wait until the  
value in the TENSION display stabilizes and then press  
the ENTER key.  
3
4
2828B  
Memorizing the maximum backward position  
With the foot switch depressed all the way backward,  
wait until the value in the TENSION display stabilizes and  
then press the ENTER key.  
2829B  
(Continued on next page.)  
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11. ADJUSTMENT  
Completion of setting  
“ END” will be displayed in the menu display.  
5
NOTE:  
If the foot switch operations are not carried out correctly,  
“ END” will not be displayed and the buzzer will sound.  
After “1.Frt” is displayed in the menu display, repeat the  
operation from step 2.  
2830B  
Turn off the power switch.  
6
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12. APPLYING GREASE  
12. APPLYING GREASE  
CAUTION  
Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get  
into your eyes or onto your skin, otherwise inflammation can result.  
Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and  
diarrhoea.  
12-1. Applying grease (Work clamp: KE-430F)  
Periodically apply grease to the sliding parts of the work  
clamp (1) and the work clamp arm (2).  
NOTE:  
Viewed from directly above  
After replacing the work clamp (1), be sure to apply  
grease before using it.  
Grease  
* It is recommended that you use commercially-available  
NIPPON OIL CORPORATION Powernoc WB 2 grease for  
the work clamp (1).  
2312B  
12-2. Applying grease (When “GREASEUP” appears)  
If “GrE” and “AS.UP" flash on the PROGRAM No. display (1) and the menu display (2) respectively, and a buzzer sounds  
when the power switch is turned on, it means that grease needs to be applied. (The sewing machine will not operate at this  
time, even if the foot switch is depressed.)  
Apply grease as required, while referring to the following for details.  
2907B  
<To continue sewing temporarily without applying grease>  
1. Press the RESET key (3).  
2. The PROGRAM No. display (1) and the menu display (2) will change to the normal displays, and sewing can be carried  
out by depressing the foot switch.  
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12. APPLYING GREASE  
NOTE:  
• "GrE" and "AS.UP" will continue to be displayed each time the power is turned on until grease is applied and the notification  
is reset by carrying out the procedure on page 131.  
• If you continue to use the sewing machine after the “GrE” and “AS.UP" notification appears without applying grease (or  
without carrying out the reset procedure), “E100” will appear after a certain period of time and the sewing machine will be  
forcibly prevented from operating for safety reasons.  
If this happens, apply grease and carry out the reset procedure.  
* If you continue to use the sewing machine after carrying out the reset procedure but without applying grease,  
problems with the sewing machine may result.  
<Applying grease>  
Use Brother-specified “Grease unit (SB1275-001)”.  
1. Removing the grease assembly  
1. Remove the four screws (1), and  
then remove the rear cover (2).  
2. Remove the grease assembly (3)  
from inside the rear cover (2).  
2458B  
2. Using the tube  
2313B  
Use in “B. Applying grease to the rock gear shaft  
F assembly”.  
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12. APPLYING GREASE  
3. Applying grease  
< A. Applying grease to the eccentric wheel >  
2314B  
1. Turn off the power switch.  
2. Remove the four screws (1), and then remove the top cover (2).  
3. Remove the bolt (4) from the eccentric wheel (3).  
* Be careful not to drop the bolt (4) when removing it.  
4. Loosen the two bolts (5), and slide the grease cover (6) in the direction of the arrow.  
* To prevent the bolts (5) from being dropped, do not remove them completely.  
5. Wipe away any grease which is remaining inside the  
eccentric wheel (3).  
6. Insert the grease nozzle into the holes in the eccentric  
wheel (3), and apply the grease.  
* Insert the grease nozzle into both holes to apply the  
grease, in order to make sure that the grease is applied  
evenly without missing any parts.  
7. Check that enough grease has been applied so that it is  
overflowing slightly from the edges.  
8. Return the grease cover (6) to its original position, and  
then secure it by tightening the bolt (4) and the two bolts  
(5).  
Grease  
NOTE:  
Securely tighten the bolt (4) and the two bolts (5). If any of  
these bolts are loose, grease may leak out and problems  
with sewing machine operation such as seizing may occur.  
2316B  
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12. APPLYING GREASE  
< B. Applying grease to the rock gear shaft F assembly >  
1. Tilt back the machine head.  
2. Loosen the two screws (1), and then remove grease  
holder F (2).  
3. Turn the pulley in the direction of the arrow to move the  
rock gear shaft F assembly (3) to the most forward  
position.  
4. Remove the bolt (4) and the crank rod washer (5).  
5. Insert the grease nozzle (6) into the hole in the rock gear  
shaft F assembly (3) as far as it will go as shown in the  
illustration, and apply grease until it is overflowing slightly  
from the edges.  
6. Pull out the grease nozzle (6) while adding the grease.  
7. Install the bolt (4) and the crank rod washer (5).  
8. Install grease holder F (2) with the two screws (1).  
9. Install the rear cover with the four screws.  
2317B  
NOTE:  
• Once the grease tube has been opened, remove the nozzle from the tube, attach the cap securely and store the tube in a  
cool dark place.  
• The grease should be used as quickly as possible.  
• When using the grease again, remove any old grease from inside the nozzle first.  
(Store the tube away carefully once the tube has been opened, otherwise the grease remaining inside the tube may  
deteriorate, and this may affect its lubricating performance.)  
<Resetting the grease up counter>  
Once the grease has been applied, follow the procedure  
below to reset the cumulative number of stitches between  
grease applications.  
1. While pressing the F1 key (1), turn on the power switch.  
“GCt” will appear in the PROGRAM No. display (2), and  
the cumulative number of stitches until grease should be  
applied will be displayed in the total of six columns in the  
section No. display (3) and the menu display (4) in units of  
10,000 stitches.  
2. Press and hold the RESET key (5) for 2 seconds or more.  
(This completes the reset procedure.)  
3. When you press the TEST key (6), the displays will return  
to their normal displays.  
2344B  
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13. HOW TO INSTALL THE FEED PLATE FOR KE-430C SERIES IN KE-430F AND BE-438F  
13. HOW TO INSTALL THE FEED PLATE FOR  
KE-430C SERIES IN KE-430F AND BE-438F  
If using the feed plate for the KE-430C and BE-438C, install it as follows.  
<KE-430F>  
4868Q  
For KE-430F  
For KE-430C  
4870Q  
Countersink  
Do not use the screws for feed  
plate that is used for the KE-430C.  
4869Q  
Install using the two screws (1) and the accessory feed plate cover (2), screw (3) and washer (4) as shown in the illustration.  
<BE-438F>  
For BE-438F  
For BE-438C  
4871Q  
Install using the two screws (1) and the accessory feed plate cover (2) and screw (3) as shown in the illustration.  
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14. INSTALLING THE 2-PEDAL FOOT SWITCH (OPTION)  
14. INSTALLING THE 2-PEDAL FOOT SWITCH (OPTION)  
The foot switch conversion harness (SB1565001) that is sold separately is required.  
DANGER  
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet  
before opening the face plate of the control box. Touching areas where high voltages are present will result in  
serious injury from electric shocks.  
Be sure to connect the ground.  
If the ground connection is not secure, you run a high risk of serious injury from electric shocks, and problems with  
correct operation will also occur.  
No. 2-pedal foot switch  
10P connector  
1
2
3
4
5
6
7
8
9
10  
-
-
-
-
Start  
0V  
0V  
Clamp  
Option  
0V  
2825B  
1. Insert the foot switch conversion harness (1) into connector <P15> on the main PCB.  
2. Connect the connector (2) for the 2-pedal foot switch to the foot switch conversion harness (1).  
3. Temporarily remove the screw (4) from the ground terminal of the control box, and then connect the two ground wires (3)  
in the 2-pedal foot switch harness to the ground terminal and retighten the screw to the ground terminal.  
4. Close the cord presser plate (5) in the direction of the arrow, and secure it by tightening the two screws (6).  
NOTE:  
Make sure that the ground connections are secure in order to ensure safety.  
Close the cord presser plate (5) securely so that no foreign objects, insects or small animals can get inside the control  
box.  
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15. ELECTRIC MECHANISM  
15. ELECTRIC MECHANISM  
DANGER  
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet  
before opening the face plate of the control box. Touching areas where high voltages are present will result in  
serious injury from electric shocks.  
15-1. Precautions at the time of adjustment  
Pay attention to the following when opening the control box for maintenance.  
Electric shock  
Some large capacitors may have a high voltage remaining in them for up to 5 minutes after the power is turned off. To prevent  
electric shock, wait at least 5 minutes after the power is turned off before doing the following:  
• Opening and closing the control box  
• Replacing fuses  
• Separating and joining connectors  
• Measuring resistance  
• Doing anything with a possibility of touching something inside the control box  
Some adjustments require measuring the voltage while the power is turned on with the control box kept open.  
In such a case, be careful not to touch any place other than that for the measurement. In addition, always keep in mind that a  
high voltage remains for about 5 minutes after power is turned off.  
Injury  
When separating or rejoining connectors, and measuring something, be careful not to cut your fingers on metal parts such as  
heat sinks and covers.  
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15. ELECTRIC MECHANISM  
15-2. Components inside and outside the control box and in the operation panel  
Main PCB  
Secured to the rear. This PCB drives the pulse motor and solenoids.  
Motor PCB  
Secured to the side. This PCB drives the main shaft motor. There are two fuses on this PCB.  
Power PCB  
Secured to the base. This PCB generates the voltages which are required for control operations.  
Conversion transformer box (100V, 110V, 380V, 400V AC specifications only)  
Steps-down the power supply voltage and generates the voltages that are required for the control box.  
NF box (For Europe)  
Eliminates electrical noise that is transmitted along the power supply line.  
Panel PCB  
Secured inside the operation panel. This PCB controls indications of the machine status and the input operation.  
Control box  
Operation panel  
Main PCB  
Panel PCB  
Motor PCB  
Transformer box  
Power PCB  
NF box  
2682B  
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15. ELECTRIC MECHANISM  
15-3. Fuse explanation  
When replacing a fuse, be sure to use the specified ones listed below.  
If a component on a PCB is damaged, the fuses may blow again soon even after they have been replaced.  
No.  
Part name  
Fuse 15AFB  
(glass tube fuse, 15A-250V)  
Part code  
When a fuse has blown  
F1  
F2  
The power indicator is not illuminated, and  
nothing operates.  
A10193-001  
Motor PCB  
2930B  
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15. ELECTRIC MECHANISM  
15-4. Connectors  
Most of the machine trouble is due to connector problems including improper connection or sufficient contact. Therefore, be  
sure to check if each connector is correctly inserted and that there is no contact failure between pins and wires before starting  
troubleshooting procedures.  
15-4-1. Connector positions  
Main PCB  
2931B  
Motor PCB  
(Refer to the diagram in “15-3. Fuse explanation”.)  
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Power PCB  
2932B  
Panel PCB  
2687B  
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15. ELECTRIC MECHANISM  
15-4-2. Contact failure  
The connectors functions are divided into five categories. Some connectors may belong to more than one group. Be sure to  
investigate another category if a problem is not found in one category.  
Feed mechanism  
Problem  
Connector No. and position  
• The work clamp/button clamp operates for a moment but the  
home position is not detected correctly.  
• Error E200 or E210 is displayed.  
2933B  
2934B  
2935B  
• Problem with work clamp/button clamp operation in the  
forward-back (Y) direction.  
• Error E210, E211, E214, E215 or E216 is displayed.  
• Problem with work clamp/button clamp operation in the  
sideways (X) direction.  
• Error E200, E201, E204, E205 or E206 is displayed.  
• The feed motor does not operate for home position detection  
immediately after the power is turned on.  
• Error E300 is displayed.  
2936B  
Work clamp mechanism  
Problem  
Connector No. and position  
• The work clamp pulse motor rotates but the home position is not  
detected correctly.  
• Error E300 is displayed.  
2937B  
• The work clamp pulse motor does not rotate correctly.  
• Error E300, E301, E330 or E331 is displayed.  
2938B  
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15. ELECTRIC MECHANISM  
Thread trimmer mechanism  
Problem  
Connector No. and position  
• Thread trimming is not performed. (There is no error display.)  
• Digital tension does not operate. (There is no error display.)  
• Error E690 is displayed.  
2939B  
2940B  
2941B  
Sewing operation  
Problem  
Connector No. and position  
• The power indicator is not illuminated, and nothing operates.  
• Machine operation is unstable.  
2942B  
• The main shaft motor does not operate correctly.  
• Error E130 is displayed.  
2943B  
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15. ELECTRIC MECHANISM  
Others  
Problem  
Connector No. and position  
• Panel indication is strange.  
• The power indicator is not illuminated.  
• Any operation panel key does not have any effect.  
2944B  
• The sewing machine does not operate when the foot switch is  
depressed. (No error display.)  
2945B  
• Error E055 is displayed after the power is turned on.  
2946B  
• Error E452 is displayed after the power is turned on.  
2947B  
• The machine does not start up with the “brother” display  
appearing.  
2948B  
(Continued on next page.)  
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15. ELECTRIC MECHANISM  
Problem  
Connector No. and position  
• Only the power indicator illuminates.  
• Nothing appears on the operation panel display.  
2949B  
• The sewing machine does not operate when the foot switch is  
depressed.  
• Error E130 is displayed.  
2950B  
• Error E131 is displayed.  
2951B  
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15. ELECTRIC MECHANISM  
15-5. Troubleshooting  
15-5-1. Troubleshooting flowchart  
Symbols and their meanings  
Set-up operation or  
condition  
Switch operation  
The  
procedure  
to  
Yes-or-no  
decision-making process  
follow continues on the  
next page  
The error status number  
in the first column of the  
table of “15-5-2. Problem  
solution and measures”  
Turning-off  
power switch  
of  
the  
2707B  
2952B  
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15. ELECTRIC MECHANISM  
2953B  
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15. ELECTRIC MECHANISM  
2954B  
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15. ELECTRIC MECHANISM  
2955B  
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15. ELECTRIC MECHANISM  
15-5-2. Problem solution and measures  
DANGER  
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet  
before opening the face plate of the control box. Touching areas where high voltages are present will result in  
serious injury from electric shocks.  
1. Pay attention to the following when opening the control box for maintenance.  
Electrical shock  
Some large capacitors may have a high voltage remaining in them for up to 5 minutes after the power is turned off.  
To prevent electrical shock, wait at least 5 minutes after the power is turned off before doing the following:  
• Opening and closing the control box  
• Replacing fuses  
• Separating and joining connectors  
• Measuring resistance  
• Doing anything with a possibility of touching something inside the control box  
Some adjustments require measuring the voltage while the power is turned on with the control box kept open.  
In such a case, be careful not to touch any place other than that for the measurement. In addition, always keep in  
mind that a high voltage remains for about 5 minutes after power is turned off.  
Injury  
When separating or rejoining connectors, and measuring something, be careful not to cut your fingers on metal parts such  
as heat sinks and covers.  
2. When replacing a fuse, be sure to use a new one of the same quality and capacity as the old one.  
Before adjustment  
1. While the power is turned off, check each connector is securely plugged in by referring to “15-4. Connectors”.  
2. Find the error status number in the troubleshooting flowchart.  
3. From the applicable part of the flowchart, take the reference number to find the correspondingly numbered details of the  
problem in the following table.  
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15. ELECTRIC MECHANISM  
Error status #1 The power indicator does not light when the power is turned on.  
Probable causes  
1. (Check the LEDs)  
Check/ repair/ adjust  
Turn on the power switch and check that the  
various LEDs illuminate in the following order.  
a. LD2 (red) on motor PCB does not illuminate.  
12、#13、#14  
Parts to be replaced  
b. LD2 (red) on power PCB does not illuminate.  
15、#16、#17、#18  
c. LD3 (green) on motor PCB does not  
illuminate.  
19  
d. Power indicator on panel does not illuminate.  
110  
2. Malfunction of power cord  
Disconnect the power supply connector which  
links the power cord for the power switch and the  
motor PCB, turn on the power switch, and then  
measure the voltage between terminals 1 and 3 of  
the cord-side connector.  
OK if the voltage is the same as mains voltage.  
In addition, check that the power supply voltage at  
the wall outlet is within the range of the  
specification voltage +/- 10%.  
After inspecting, turn off the power switch and  
connect the power supply connector.  
2712B  
3. Blown fuse  
Remove fuses F1 and F2 from the motor PCB GFUSE15A  
and check the continuity.  
OK if there is continuity.  
(15A-250V)  
4. Malfunction of motor PCB 1  
Remove P2 (DCIN) from the power PCB, turn the Motor PCB assembly  
power back on, and then check LD2 (red) on the  
motor PCB.  
OK if illuminated.  
After checking, turn off the power switch, wait for  
five minutes or more, and then insert P2 into the  
power PCB.  
Turn the power back on, and then with P2  
inserted into the power PCB, check the voltage  
between terminals 1 and 3 of P2.  
OK if 170 to 270 V DC.  
5. Malfunction of power PCB  
Disconnect connector P1 (POWER2) from the Power PCB assembly  
main PCB and connectors P4 (POWER3) and P6  
(POWER2) from the motor PCB, and then turn on  
the power switch and check LD2 (red) on the  
power PCB.  
OK if illuminated.  
After checking, turn off the power switch, wait for  
one minute or more, and then insert P1 into the  
main PCB and P4 and P6 into the motor PCB.  
(Continued on next page.)  
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15. ELECTRIC MECHANISM  
Error status #1 The power indicator does not light when the power is turned on.  
Probable causes  
Check/ repair/ adjust  
Parts to be replaced  
6. Malfunction of main PCB  
Disconnect connectors P4 (POWER3) and P6 Main PCB assembly  
(POWER2) from the motor PCB, and then turn on  
the power switch and check LD2 (red) on the  
power PCB.  
OK if illuminated.  
(LD1 (red) on power PCB does not illuminate)  
After checking, turn off the power switch, wait for  
one minute or more, and then insert P4 and P6  
into the motor PCB.  
7. Malfunction of main PCB 2  
8. Malfunction of panel PCB  
9. Poor harness connection  
Disconnect connector P1 (POWER2) from the Motor PCB assembly  
main PCB and connectors P1 (MT-ENC), P2  
(MAIN) and P3 (PANEL) from the motor PCB, and  
then turn on the power switch and check LD2  
(red) on the power PCB.  
OK if illuminated.  
After checking, turn off the power switch, wait for  
one minute or more, and then insert P1 into the  
main PCB and P1, P2 and P3 into the motor PCB.  
Disconnect connector P1 (POWER2) from the Panel PCB assembly  
main PCB and connectors P1 (MT-ENC) and P2 Panel harness  
(MAIN) from the motor PCB, and then turn on the  
power switch and check LD2 (red) on the power  
PCB.  
OK if illuminated.  
After checking, turn off the power switch, wait for  
one minute or more, and then insert P1 into the  
main PCB and P1 and P2 into the motor PCB.  
Check that connector P4 (POWER3) of the motor Power PCB assembly  
PCB is inserted, and then turn on the power  
switch and check the voltage between terminals 1  
and 4 of P4.  
OK if approximately 24 V DC.  
2713B  
10. Malfunction of operation panel  
Check that connector P3 (PANEL) of the motor Operation panel assembly  
PCB is inserted.  
Panel PCB assembly  
Panel harness  
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15. ELECTRIC MECHANISM  
Error status #2 Error code appears on the display when the power is turned on.  
Probable causes Check/ repair/ adjust  
1. If “E025” or “E035” is displayed, a. Check if the foot switch is still depressed.  
Parts to be replaced  
Treadle unit  
the foot switch is still depressed.  
b. Check if there is a short-circuit in the harness.  
c. Check if connector P12 (PEDAL) is connected  
to the motor PCB.  
d. Reset the depression stroke for the foot switch  
while referring to “11-22. Standard setting for  
depression stroke (foot switch)”.  
* For a 2-pedal foot switch, the connector for the 2-pedal foot switch assembly  
main PCB will be P15 (PEDAL).  
2. If "E055" is displayed, there is a a. Check if the machine head switch is off.  
malfunction of the machine head b. Check if there is a broken wire in the harness.  
Switch assembly machine  
head  
switch.  
c. Check if connector P14 (HEAD-SW) is  
connected to the main PCB.  
3. If "E065" is displayed, one of the a. Check that there is no incorrect sensitivity Operation panel assembly  
keys on the operation panel is still  
depressed.  
when the surface of the panel sheet and the Panel PCB assembly  
keys are pressed.  
Panel harness  
b. Check that connector P3 (PANEL) is  
connected to the motor PCB, and that  
connector P1 (MAIN) is connected to the  
panel PCB.  
4. If “E131” is displayed, there is a Check that connector P11 (RESOLVER) and P1  
poor  
synchronizer.  
connection  
of  
the (MT-ENC) is connected to the motor PCB, and  
that connector P6 (MT-ENC) is connected to the  
main PCB.  
5. If "E400" and "E401" is displayed, a. Check LD3 (green) on the main PCB.  
there is connection fault OK if illuminated.  
between the main PCB , motor b. Check LD3 (green) on the motor PCB.  
PCB and the panel PCB. OK if illuminated.  
Main PCB assembly  
Motor PCB assembly  
Panel PCB assembly  
Connection harness  
a
c. Check that connector P5 (MOTOR) is Panel harness  
connected to the main PCB, and that  
connector P2 (MAIN) is connected to the  
motor PCB.  
d. Check that connector P3 (PANEL) is  
connected to the motor PCB, and that  
connector P1 (MAIN) is connected to the  
panel PCB.  
e. Check if there is a broken wire in the harness.  
6. If "E450" or "E452" is displayed, a. Check if connector P3 (HEAD-M) is connected  
the machine head memory cannot  
be recognized.  
to the main PCB.  
b. Check if there is a broken wire in the harness.  
7. If "E700" is displayed, the power a. Check that the power supply voltage at the  
supply voltage is abnormally high.  
mains is at the specification voltage plus or  
minus 10%.  
b. See #1-2.  
8. If "E705" is displayed, the power a. Check that the power supply voltage at the  
supply voltage is abnormally low.  
mains is at the specification voltage plus or  
minus 10%.  
b. See #1-2.  
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Error status #3 No keys on the operation panel are not activated.  
Probable causes  
1. Malfunction of panel PCB  
Check/ repair/ adjust  
Parts to be replaced  
Check that connector P3 (PANEL) is connected to Operation panel assembly  
the motor PCB, and that connector P1 (MAIN) is Panel PCB assembly  
connected to the panel PCB.  
Panel harness  
2. Main  
software  
not  
installed Carry out the restore operation by referring to  
"7-13. Updating the control program version ".  
correctly  
Error status #4 Work clamp does not return to the home position even after the foot switch is depressed.  
Probable causes  
1. Incorrect depression  
adjustment  
Check/ repair/ adjust  
position Adjust the position while referring to “11-22.  
Setting method for standard depression strokes  
(Foot switch)”.  
Parts to be replaced  
2. Malfunction of treadle unit  
With the motor PCB connector P12 (PEDAL) Foot switch  
connected, turn on the power and measure the  
voltage between pins 3-4 of the cord connector  
(No. 3 +, No. 4 -).  
OK if the voltage is approximately 2 V at neutral,  
approximately 4 V when the foot switch is  
depressed as far as it will go, and approximately  
0.5 V when it is depressed backward.  
2714B  
3. Malfunction of foot switch and cord (Check that the power is turned off.)  
(option) Disconnect the foot switch from the foot switch  
Foot switch  
adapter harness, and measure the voltage  
between pins 5-6 and 7-8 of the foot switch  
connector. (Check between pins 9-10 if using a  
2-pedal foot switch.)  
OK if the resistance is normally ohms but 0  
ohms when depressed.  
2956B  
4. Malfunction of foot switch adapter After checking the foot switch in step 3, connect Foot switch  
harness (option)  
the foot switch adapter harness to the foot switch Foot switch cord  
and measure the voltage between pins 1-2 and  
3-4 of connector P15 (PEDAL) of the main PCB.  
(Check between pins 5-6 if using a 2-pedal foot  
switch.)  
(Touch the ohmmeter against the lead wires  
without disconnecting the connector.)  
OK if the resistance is normally ohms but 0  
ohms when depressed.  
2716B  
KE-430F, BE-438F  
152  
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15. ELECTRIC MECHANISM  
Error status #5 Error code appears on the display when the foot switch is depressed.  
Probable causes Check/ repair/ adjust  
1. If “E130”, “E131” or “E132” is Refer to inspection #2-4.  
displayed, there is poor  
connection of the synchronizer.  
Parts to be replaced  
a
2. If “E130”, “E131” or “E132” is Check the connection of the relay connector  
displayed, there is poor between the machine motor and the motor PCB.  
connection of the machine motor.  
a
3. If “E130”, “E131” or “E132” is a. Remove fuses F1 and F2 from the motor PCB GFUSE15A  
displayed, there is a blown fuse.  
and check the continuity.  
OK if there is continuity.  
(15A-250V)  
b. If fuse F1 or F2 is blown, check the resistance  
values between each pin of the relay  
connector between the machine motor and the  
motor PCB and between each terminal of the  
fuses.  
OK if ohms.  
Motor PCB assembly  
c. If the fuses blow again after they are replaced,  
replace the motor PCB.  
4. If “E130”, “E131” or “E132” is a. Check the synchronizer input while referring to Resolver stator 430 assembly  
displayed, there is a malfunction of  
the motor PCB.  
“4-7. Input checking method”.  
OK if the signal turns on and off.  
b. If step a. (above) is OK, there is a malfunction  
of the motor PCB.  
Motor PCB assembly  
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15. ELECTRIC MECHANISM  
Error status #6 Error code appears on the display when the foot switch is depressed.  
Probable causes  
Check/ repair/ adjust  
Parts to be replaced  
1. If the X feed does not move and Disconnect connectors P1 (POWER2) and P24 Power PCB assembly  
"E200" is displayed, there is a (POWER1) from the main PCB, and then turn on  
malfunction of the power PCB.  
the power switch and check LD1 (red) on the  
power PCB.  
OK if illuminated.  
After checking, turn off the power switch, wait for  
one minute or more, and then insert P1 and P24  
into the main PCB.  
2. If the X feed does not move and a. Disconnect connector P24 (POWER1) from Main PCB assembly  
"E200" is displayed, there is a  
malfunction of the main PCB.  
the main PCB, and check the continuity  
between terminals 1 and 2 of P24.  
OK if ohms.  
b. Disconnect connector P21 (XPM) from the  
main PCB, and check the continuity between  
terminals 1 and 2, 3 and 4 of P21.  
OK if ohms.  
c. Insert P21 and P24 into the main PCB, turn on  
the power switch and then check LD1 (red) on  
the power PCB.  
OK if illuminated.  
If LD1 is illuminated during the check in step 1  
but it does not illuminate when P1 and P24  
are connected, there is a malfunction of the  
main PCB.  
d. Check LD1 (orange) on the main PCB.  
OK if illuminated.  
2717B  
2718B  
3. If the X feed moves slightly and a. Check that connector P17 (X-ENC) is inserted Pulse motor X assembly  
"E200" is displayed, there is a  
malfunction of the encoder.  
into the main PCB and that the color matches.  
Main PCB assembly  
b. Check the encoder input while referring to  
"4-7. Input checking method".  
4. If the X feed does not move and a. Disconnect the main PCB connector P21 Pulse motor X assembly  
"E200" is displayed, there is a  
malfunction of the pulse motor and  
cord.  
(XPM) and measure the resistance between  
pins 1-2 and 3-4 of the cord connector.  
OK if 2-3 ohms.  
b. If step a. (above) is OK, there is a malfunction  
of the main PCB.  
Main PCB assembly  
2719B  
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15. ELECTRIC MECHANISM  
Error status #7 Error code appears on the display when the foot switch is depressed.  
Probable causes Check/ repair/ adjust  
Parts to be replaced  
1. If the Y feed does not move and Disconnect connectors P1 (POWER2) and P24 Power PCB assembly  
"E210" is displayed, there is a (POWER1) from the main PCB, and then turn on  
malfunction of the power PCB.  
the power switch and check LD1 (red) on the  
power PCB.  
OK if illuminated.  
After checking, turn off the power switch, wait for  
one minute or more, and then insert P1 and P24  
into the main PCB.  
2. If the Y feed does not move and a. Disconnect connector P24 (POWER1) from Main PCB assembly  
"E210" is displayed, there is a  
malfunction of the main PCB.  
the main PCB, and check the continuity  
between terminals 1 and 2 of P24.  
OK if ohms.  
b. Disconnect connector P22 (YPM) from the  
main PCB, and check the continuity between  
terminals 1 and 2, 3 and 4 of P22.  
OK if ohms.  
c. Insert P22 and P24 into the main PCB, turn on  
the power switch and then check LD1 (red) on  
the power PCB.  
OK if illuminated.  
If LD1 is illuminated during the check in step 1  
but it does not illuminate when P1 and P24  
are connected, there is a malfunction of the  
main PCB.  
d. Check LD1 (orange) on the main PCB.  
OK if illuminated.  
2717B  
2720B  
3. If the Y feed moves slightly and a. Check that connector P18 (Y-ENC) is inserted Pulse motor Y assembly  
"E210" is displayed, there is a  
malfunction of the encoder.  
into the main PCB and that the color matches.  
Main PCB assembly  
b. Check the encoder input while referring to  
"4-7. Input checking method".  
4. If the Y feed does not move and a. Disconnect the main PCB connector P22 Pulse motor Y assembly  
"E210" is displayed, there is a  
malfunction of the pulse motor and  
cord.  
(YPM) and measure the resistance between  
pins 1-2 and 3-4 of the cord connector.  
OK if 2-3 ohms.  
b. If step a. (above) is OK, there is a malfunction Main PCB assembly  
of the main PCB.  
2721B  
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15. ELECTRIC MECHANISM  
Error status #8 Error code appears on the display when the foot switch is depressed.  
Probable causes  
Check/ repair/ adjust  
Parts to be replaced  
1. If the work clamp pulse motor Disconnect connectors P1 (POWER2) and P24 Power PCB assembly  
does not operate and "E300" is (POWER1) from the main PCB, and then turn on  
displayed, there is a malfunction of the power switch and check LD1 (red) on the  
the power PCB.  
power PCB.  
OK if illuminated.  
After checking, turn off the power switch, wait for  
one minute or more, and then insert P1 and P24  
into the main PCB.  
2. If the work clamp pulse motor a. Disconnect connector P24 (POWER1) from Main PCB assembly  
does not move and "E300" is  
displayed, there is a malfunction of  
the main PCB.  
the main PCB, and check the continuity  
between terminals 1 and 2 of P24.  
OK if ohms.  
b. Disconnect connector P23 (PPM) from the  
main PCB, and check the continuity between  
terminals 1 and 2, 3 and 4 of P23.  
OK if ohms.  
c. Insert P23 and P24 into the main PCB, turn on  
the power switch and then check LD1 (red) on  
the power PCB.  
OK if illuminated.  
If LD1 is illuminated during the check in step 1  
but it does not illuminate when P1 and P24  
are connected, there is a malfunction of the  
main PCB.  
d. Check LD1 (orange) on the main PCB.  
OK if illuminated.  
2717B  
2722B  
3. If the work clamp pulse motor a. Check that connector P19 (P-ENC) is inserted Pulse motor P assembly  
moves slightly and "E300" is  
displayed, there is a malfunction of  
the encoder.  
into the main PCB and that the color matches.  
Main PCB assembly  
b. Check the encoder input while referring to  
"4-7. Input checking method".  
4. If the work clamp pulse motor a. Disconnect the main PCB connector P23 Pulse motor P assembly  
does not move and "E300" is  
displayed, there is a malfunction of  
the pulse motor and cord.  
(PPM) and measure the resistance between  
pins 1-2 and 3-4 of the cord connector.  
OK if 2-3 ohms.  
b. If step a. (above) is OK, there is a malfunction Main PCB assembly  
of the main PCB.  
2723B  
KE-430F, BE-438F  
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15. ELECTRIC MECHANISM  
Error status #9 Error code appears on the display when the foot switch is depressed.  
Probable causes Check/ repair/ adjust  
1. If "E690" is displayed during home a. Check the position of the thread nipper driving  
Parts to be replaced  
position detection, there is  
malfunction of the thread nipper.  
a
lever.  
b. Remove any thread scraps from behind the  
needle plate.  
2. If "E960" is displayed during home Adjust the home position while referring to  
position detection, the thread "11-18-3. Thread nipper motor home position".  
nipper home position adjustment is  
incorrect.  
3. If the thread nipper pulse motor Disconnect connectors P1 (POWER2) and P24 Power PCB assembly  
does not operate and “E690” is (POWER1) from the main PCB, and then turn on  
displayed, there is a malfunction of the power switch and check LD1 (red) on the  
the power PCB.  
power PCB.  
OK if illuminated.  
After checking, turn off the power switch, wait for  
one minute or more, and then insert P1 and P24  
into the main PCB.  
4. If the thread nipper pulse motor a. Disconnect connector P1 (POWER2) from the Main PCB assembly  
does not move and "E690" is  
displayed, there is a malfunction of  
the main PCB.  
main PCB, and check the continuity between  
terminals 1 and 2 of P1.  
OK if ohms.  
b. Disconnect connector P4 (TPM) from the main  
PCB, and check the continuity between  
terminals 1 and 2, 3 and 4 of P4.  
OK if ohms.  
c. Insert P1 and P4 into the main PCB, turn on  
the power switch and then check LD1 (red) on  
the power PCB.  
OK if illuminated.  
If LD1 is illuminated during the check in step 1  
but it does not illuminate when P1 and P24  
are connected, there is a malfunction of the  
main PCB.  
d. Check LD2 (green) on the main PCB.  
OK if illuminated.  
2717B  
2724B  
5. If the thread nipper pulse motor a. Check that connector P20 (T-ENC) is inserted Pulse motor T assembly  
moves slightly and "E690" is  
displayed, there is a malfunction of  
the encoder.  
into the main PCB and that the color matches.  
Main PCB assembly  
b. Check the encoder input while referring to  
"4-7. Input checking method".  
6. If the thread nipper pulse motor a. Disconnect the main PCB connector P4 (TPM) Pulse motor T assembly  
does not move and "E690" is  
displayed, there is a malfunction of  
the pulse motor and cord.  
and measure the resistance between pins 1-2  
and 3-4 of the cord connector.  
OK if 2-3 ohms.  
b. If step a. (above) is OK, there is a malfunction Main PCB assembly  
of the main PCB.  
2725B  
KE-430F, BE-438F  
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15. ELECTRIC MECHANISM  
Error status #10 Work clamp does not rise.  
Probable causes  
Check/ repair/ adjust  
Parts to be replaced  
1. Incorrect work clamp home position a. Adjust the home position while referring to  
adjustment  
"11-18. Adjusting the home position".  
b. Check if the work clamp/button clamp is  
touching anything.  
2. Incorrect mechanism adjustment  
Check if the work clamp arm moves smoothly.  
Work clamp arm assembly  
Parts to be replaced  
Error status #11 Work clamp does not lower.  
Probable causes  
Check/ repair/ adjust  
1. Incorrect work clamp home position a. Adjust the home position while referring to  
adjustment  
"11-18. Adjusting the home position".  
b. Check if the work clamp/button clamp is  
touching anything.  
2. Incorrect mechanism adjustment  
Check if the work clamp arm moves smoothly.  
Work clamp arm assembly  
Parts to be replaced  
Error status #12 The TEST indicator does not light when the TEST key is pressed.  
Probable causes  
Check/ repair/ adjust  
Malfunction of panel PCB  
Check that connector P3 (PANEL) is connected to Panel PCB assembly  
the motor PCB, and that connector P1 (MAIN) is Panel harness  
connected to the panel PCB.  
Error status #13 The feed mechanism does not slowly move stitch by stitch during test feeding.  
Probable causes  
1. Incorrect memory switch setting  
Check/ repair/ adjust  
Set memory switch No. 200 to OFF.  
(The default setting is ON for the BE-438F.)  
Parts to be replaced  
2. Malfunction of foot switch and cord  
See #4.  
Error status #14 Quick feeding cannot be performed during test feeding.  
Probable causes  
Malfunction of foot switch and cord  
Check/ repair/ adjust  
Parts to be replaced  
Parts to be replaced  
See #4.  
Error status #15 The machine does not operate correctly for the set program during test feeding.  
Probable causes  
Check/ repair/ adjust  
Malfunction of foot switch and cord  
See #4.  
KE-430F, BE-438F  
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15. ELECTRIC MECHANISM  
Error status #16 The machine does not operate during sewing, and the error code [E130], [E131] or [E132] appears on the display.  
Probable causes  
Check/ repair/ adjust  
Parts to be replaced  
Malfunction of synchronizer, machine Refer to steps 1 to 4 in #5.  
motor, fuses or motor PCB.  
Error status #17 Error code appears on the display after the machine operates.  
Probable causes  
Check/ repair/ adjust  
Parts to be replaced  
1. If “E111”, “E130”, “E131”, “E132” or Check that connectors P11 (RESOLVER) and P1  
“E133” is displayed after the (MT-ENC) of the motor PCB and connector P6  
sewing machine operates, there is (MT-ENC) of the main PCB are inserted.  
a
poor  
connection  
of  
the  
synchronizer.  
2. If “E111”, “E130”, “E131”, “E132” or Check the connection of the relay connector  
“E133” is displayed after the between the machine motor and the motor PCB.  
sewing machine operates, there is  
a poor connection of the machine  
motor.  
3. If “E111”, “E130”, “E131”, “E132” or Check that the ground wire is securely connected  
“E133” is displayed after the and that the sewing machine is not close to any  
sewing  
machine  
operates, equipment that generates strong electrical  
interference is causing operating interference.  
errors.  
4. If “E111”, “E130”, “E131”, “E132” or Refer to steps 1 to 4 in #5.  
“E133” is displayed after the  
Resolver stator assembly  
Motor PCB assembly  
sewing machine operates, there is  
a malfunction of the motor PCB.  
5. If "E111", "E130", "E132"or "E133" If an error occurs after inspection steps 1 to 4 Motor 430 assembly  
is displayed after the sewing above have been carried out, there is  
machine operates, there is malfunction of the machine motor.  
a
a
malfunction of the motor PCB or of  
the machine motor.  
6. If "E121" is displayed after the Check if the blades of the fixed knife and movable  
sewing machine operates, there is knife are damaged or worn.  
a malfunction of a component.  
7. If "E121" is displayed after the Adjust the home position while referring to “11-18.  
sewing machine operates, the Adjusting the home position”.  
home  
position  
is  
incorrectly  
adjusted.  
8. If "E121" is displayed after the Refer to steps 3 to 6 in #9.  
sewing machine operates, there is  
Power PCB assembly  
Main PCB assembly  
Pulse motor T assembly  
a problem with the operation of the  
thread nipper pulse motor.  
9. If "E121" is displayed after the Refer to steps 3 to 4 in #8.  
sewing machine operates, there is  
Main PCB assembly  
Pulse motor P assembly  
a problem with the operation of the  
work clamp pulse motor.  
(Continued on next page.)  
KE-430F, BE-438F  
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15. ELECTRIC MECHANISM  
Error status #17 Error code appears on the display after the machine operates.  
Probable causes  
Check/ repair/ adjust  
Parts to be replaced  
10. If "E150" is displayed after the a. Turn off the power and let the motor stand for Resolver stator 430 assembly  
sewing machine operates, the  
motor is abnormally overheating.  
30 minutes or more.  
Motor PCB assembly  
Motor 430 assembly  
b. Turn the power back on, and OK if operation  
is normal.  
c. If the area around the motor is not hot, carry  
out steps 1 to 5 in #17.  
* Avoid repeated sewing of sewing data that  
contains 15 stitches or less.  
Error status #18 The machine cannot produce correct stitches.  
Probable causes  
1. Malfunction of synchronizer  
Check/ repair/ adjust  
Refer to step 1 in #17.  
Parts to be replaced  
2. If uneven seams are being sewn, a. Refer to step 4 in #6.  
there is a malfunction of the pulse  
motor or the mechanism is b. If the uneven seams are due to insufficient  
incorrectly adjusted.  
work clamp pressure, adjust while referring to  
"11-10. Adjusting the work clamp lift amount  
(KE-430F)" or "11-11. Adjusting the button  
clamp lift amount (BE-438F)".  
c. If there is play in the feed mechanism, adjust  
the feed mechanism.  
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15. ELECTRIC MECHANISM  
Error status #19 The thread trimmer does not operate.  
Probable causes  
Check/ repair/ adjust  
Parts to be replaced  
1. Incorrect memory switch setting  
Set memory switch No. 164 to OFF.  
* If it is set to ON, thread trimming will not be  
carried out.  
2. Incorrect mechanism adjustment  
Adjust the thread trimmer mechanism while  
referring to "11-14. Adjusting the thread trimmer  
cam position".  
* If it seems that the thread trimming mechanism  
is not operating properly, carry out steps 3 to 6  
below.  
3. Poor connector connection  
Check that main PCB connector P2 (SOL1) and  
P3 (SOL2) is connected.  
4. Malfunction of thread trimmer Disconnect main PCB connector P2 (SOL1) and Thread trimmer solenoid  
solenoid  
measure the resistance between pins 3-6 of the assembly  
cord connector.  
OK if 6-8 ohms.  
2726B  
5. Malfunction of tension solenoid  
Disconnect main PCB connector P3 (SOL2) and Tension solenoid  
measure the resistance between pins 1-2 of the  
cord connector.  
OK if 6-8 ohms.  
2727B  
6. Malfunction of main PCB.  
a. Turn on the power switch and check LD2 Main PCB assembly  
(green) on the main PCB.  
OK if illuminated.  
b. Turn off the power switch, and with connector  
P2 (SOL1) disconnected from the main PCB,  
check the continuity between terminals 3 and  
6 of connector P2 on the main PCB.  
OK if ohms.  
c. With connector P3 (SOL2) disconnected from  
the main PCB, check the continuity between  
terminals 1 and 2 of connector P3 on the main  
PCB.  
OK if ohms.  
d. With connector P2 (SOL1) inserted into the  
main PCB, turn on the power switch, carry out  
sewing and measure the voltage between  
terminals 3 and 6 of connector P2.  
OK if voltage is output momentarily at the  
sewing end.  
e. With main PCB connector P3 (SOL2)  
connected, turn on the power and carry out  
sewing, and measure the voltage between  
pins 1-2 of connector P3 (SOL2).  
OK if there is voltage output momentarily after  
sewing stops.  
2728B  
KE-430F, BE-438F  
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15. ELECTRIC MECHANISM  
Error status #20 The machine does not stop at the needle up stop position. (“UP” is frequently displayed after sewing)  
Probable causes  
1. Incorrect adjustment  
Check/ repair/ adjust  
Adjust while referring to "11-18. Adjusting the  
home position”.  
Parts to be replaced  
2. Problem with machine motor Refer to steps 1 to 5 in #17  
operation  
Resolver stator assembly  
Motor PCB assembly  
Motor 430 assembly  
Error status #21 SD card read/write mode cannot be activated.  
Probable causes  
Check/ repair/ adjust  
Parts to be replaced  
1. If “E420” is displayed, the SD card a. Check the direction of insertion of the SD  
is incorrectly inserted.  
card.  
(Insert the card so that it matches the direction  
of the pattern on the card cover.)  
b. Check the insertion of the SD card.  
2650B  
2. If “E420” is displayed, the SD card Check the format of the SD card.  
is incorrectly formatted.  
(Carry out 16-sector formatting.)  
3. Malfunction of SD card  
Use a PC to check if the contents of the SD card  
can be read.  
4. Malfunction of operation panel  
See #12.  
Panel PCB assembly  
Panel harness  
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16. TABLE OF ERROR CODES  
16. TABLE OF ERROR CODES  
DANGER  
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet  
before opening the face plate of the control box. Touching areas where high voltages are present will result in  
serious injury from electric shocks.  
If a malfunction should occur with the sewing machine, a buzzer will sound and an error code will appear in the display  
window. Follow the remedy procedure to eliminate the cause of the problem.  
Warnings displayed as symbols  
Code  
Cause and remedy  
The sewing machine started when the work clamp/button clamp was not lowered.  
First lower the work clamp/button clamp.  
CLdn  
The needle bar is not in the needle up stop position.  
Turn the pulley until this error display disappears.  
UP  
Switch-related errors  
Code  
Cause and remedy  
The STOP switch was pressed.  
Press the RESET key (*1) to clear the error.  
E010  
The STOP switch was pressed.  
Press the RESET key (*1) to clear the error.  
E011  
You can press the  
key to move the work clamp so that you can continue sewing.  
The STOP switch was pressed.  
Press the RESET key (*1) to clear the error, and then depress the foot switch to the 2nd step to carry out home  
E012  
position detection.  
The STOP switch was still being pressed when the power was turned on, or there is a problem with the STOP  
switch connection.  
E015  
E016  
E025  
Turn off the power, and then check that connector P9 on the main PCB is properly connected.  
Problem with the STOP switch connection when the power was turned on.  
Turn off the power, and then check that connector P9 on the main PCB is properly connected.  
The foot switch was depressed to the 2nd step when the power was turned on.  
(Start switch for a two-pedal foot switch).  
Turn off the power and check the foot switch.  
The foot switch was depressed to the 1st step when the power was turned on.  
(Work clamp switch for a two-pedal foot switch).  
E035  
Turn off the power and check the foot switch.  
Machine head tilting was detected after the power was turned on.  
Turn off the power, and then return the machine head to its original position.  
Check that connector P14 on the main PCB is properly connected.  
Machine head tilting was detected while the sewing machine was operating.  
Turn off the power, and then check that connector P14 on the main PCB is properly connected.  
Machine head tilting was detected when the power was turned on.  
Turn off the power, and then return the machine head to its original position.  
Check that connector P14 on the main PCB is properly connected.  
An operation panel key was still being pressed when the power was turned on, or key is faulty.  
Turn off the power and check the operation panel.  
E050  
E051  
E055  
E065  
(*1) If the main PCB version is 1.5.00 or later, press the key or switch which has been set by memory switch No. 650.  
KE-430F, BE-438F  
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16. TABLE OF ERROR CODES  
Upper shaft motor-related errors  
Code  
Cause and remedy  
Sewing machine has continued to be used for a certain period after the “GREASEUP” notification appears  
without the grease being applied (without the reset procedure being carried out).  
Apply grease and then carry out the reset procedure. (Refer to the service manual for the reset procedure.)  
Upper shaft did not stop at the needle up stop position when the sewing machine stopped.  
Turn off the power, and then check that there are no problems with the thread trimming mechanism and the  
machine motor mechanism.  
Thread trimming was not completed.  
Turn off the power, and then check if the cutting edges of the fixed knife and movable knife are damaged or worn.  
Sewing machine motor stopped abnormally, or synchronizer is faulty.  
Turn off the power, and then turn the machine pulley to check if the machine has locked up.  
Check that connector P11 on the motor PCB and the 4-pin upper shaft motor connector are properly connected.  
Synchronizer is not connected correctly.  
Turn off the power, and then check that connector P11 on the motor PCB is properly connected.  
Problem detected with sewing machine motor operation.  
Turn off the power, and then check that connector P11 on the motor PCB is properly connected.  
Sewing machine motor stopping position is incorrect.  
Turn off the power, and then check that connector P11 on the motor PCB is properly connected.  
E100  
E111  
E121  
E130  
E131  
E132  
E133  
Sewing machine motor is overheating, or temperature sensor is faulty.  
Turn off the power, and then check the sewing machine motor.  
(When sewing data with a small number of stitches (15 stitches or less) is sewn repeatedly (short cycle  
E150  
operation), the upper shaft motor may overheat and the “E150” error code may be displayed.)  
Feed mechanism-related errors  
Code  
Cause and remedy  
X feed motor home position cannot be detected. Problem with X feed motor or poor X encoder connection.  
Turn off the power, and then check that connectors P17 and P21 on the main PCB are properly connected.  
X feed motor stopped abnormally.  
Turn off the power and check that there is no problem with the X feed direction.  
X feed motor stopped abnormally during sewing.  
Turn off the power and check that there is no problem with the X feed direction.  
X-feed motor stopped abnormally while moving to the sewing start position.  
Turn off the power and check that there is no problem with the X feed direction.  
X feed motor stopped abnormally during test feeding.  
Turn off the power and check that there is no problem with the X feed direction.  
Y feed motor home position cannot be detected. Problem with Y feed motor or poor Y encoder connection.  
Turn off the power, and then check that connectors P18 and P22 on the main PCB are properly connected.  
Y feed motor stopped abnormally.  
Turn off the power and check that there is no problem with the Y feed direction.  
Y feed motor stopped abnormally during sewing.  
Turn off the power and check that there is no problem with the Y feed direction.  
Y-feed motor stopped abnormally while moving to the sewing start position.  
Turn off the power and check that there is no problem with the Y feed direction.  
Y feed motor stopped abnormally during test feeding.  
E200  
E201  
E204  
E205  
E206  
E210  
E211  
E214  
E215  
E216  
Turn off the power and check that there is no problem with the Y feed direction.  
Work clamp-related errors  
Code  
Cause and remedy  
Work clamp home position cannot be detected. Problem with work clamp motor or poor work clamp encoder  
connection.  
Turn off the power, and then check that connectors P19 and P23 on the main PCB are properly connected.  
Work clamp/button clamp raised or lowered position cannot be detected.  
Turn off the power, and then check that there is no problem with the vertical work clamp/button clamp position.  
E300  
E301  
164  
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16. TABLE OF ERROR CODES  
Communication and memory-related errors  
Code  
Cause and remedy  
Communication error detected between the main PCB and the panel PCB when the power was turned on.  
Turn off the power, and then check that connector P1 on the panel PCB and connector P3 on the motor PCB are  
properly connected.  
Communication error detected between the main PCB and the motor PCB when the power was turned on.  
Turn off the power, and then check that connector P5 on the main PCB and connector P2 on the motor PCB are  
properly connected.  
E400  
E401  
Communication error between main PCB and panel PCB detected.  
Turn off the power, and then turn it back on again.  
Communication error between main PCB and motor PCB detected.  
Turn off the power, and then turn it back on again.  
No media is inserted.  
E410  
E411  
E420  
Press the RESET key (*1) to clear the error.  
Data contents are incorrect and cannot be used, or no data.  
Press the RESET key (*1) to clear the error.  
Check that data for this pattern number is present in the media.  
Error occurred while reading from media.  
Press the RESET key (*1) to clear the error.  
Check the data in the media.  
Insufficient space in media.  
Press the RESET key (*1) to clear the error.  
E421  
E422  
E424  
Use different media.  
Error occurred while writing to media.  
Press the RESET key (*1) to clear the error.  
Use the specified type of media.  
E425  
Check if the media is write-protected and if it has enough free space.  
A pattern registered in a cycle program has been erased.  
Press the RESET key (*1) to clear the error.  
Re-register the cycle program, or add the pattern.  
A pattern registered in a program has been erased.  
Press the RESET key (*1) to clear the error.  
E427  
E428  
Re-register the program, or add the pattern.  
Data cannot be backed up to main PCB.  
Turn off the power, and then turn it back on again.  
Data memory error on main PCB.  
Turn off the power, and then turn it back on again.  
Model selection has not been loaded from the machine head memory.  
Turn off the power and check that connector P16 on the main PCB is properly connected.  
Machine head memory is not connected.  
Turn off the power, and then check that connector P16 on the main PCB is properly connected.  
Internal memory is full and copying is not possible.  
Press the RESET key (*1) to clear the error.  
E430  
E440  
E450  
E452  
E474  
Clear any unnecessary additional patterns.  
(*1) If the main PCB version is 1.5.00 or later, press the key or switch which has been set by memory switch No. 650.  
KE-430F, BE-438F  
165  
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16. TABLE OF ERROR CODES  
Data editing-related errors  
Code  
Cause and remedy  
The enlargement ratio setting caused the sewing data to extend outside the sewing area.  
Press the RESET key (*1) to clear the error.  
Set the enlargement ratio or the sewing area again.  
The enlargement ratio caused the data pitch to exceed the maximum pitch of 12.7 mm.  
Press the RESET key (*1) to clear the error.  
Set the enlargement ratio again.  
Error in pattern data.  
E500  
E502  
E510  
E511  
E512  
Press the RESET key (*1) to clear the error.  
Re-read the pattern data from the media, or recreate the pattern data.  
No end code has been input into pattern data.  
Press the RESET key (*1) to clear the error.  
Recreate the pattern data containing the end code, or change the pattern number being read.  
Number of stitches exceeds allowed maximum.  
Press the RESET (*1) key to clear the error.  
Change the number of the pattern being read.  
Memory switch file cannot be read correctly.  
Copy source model and copy destination model are incorrect. (Maybe the 430F is attempting to read data for the  
438F.)  
E581  
Press the RESET key (*1) to clear the error.  
Read data for the same sewing machine model.  
Memory switch version does not match.  
Press the RESET (*1) key to clear the error.  
Read data for the same version.  
Parameter version does not match.  
E582  
E583  
Press the RESET key (*1) to clear the error.  
Read data for the same version.  
(*1) If the main PCB version is 1.5.00 or later, press the key or switch which has been set by memory switch No. 650.  
Device-related errors  
Code  
Cause and remedy  
Upper thread breakage occurred.  
Press the RESET key (*1) to clear the error.  
E600  
Thread nipper motor home position cannot be detected. Problem with thread nipper motor or poor thread nipper  
encoder connection.  
Turn off the power, and then clean underneath the needle plate to remove any dust and thread scraps.  
Check that connector P20 on the main PCB is properly connected.  
Thread nipper motor stopped abnormally.  
E690  
E692  
Check if the upper thread trailing length is too long.  
Turn off the power, and then clean underneath the needle plate to remove any dust and thread scraps.  
Check that connectors P20 and P4 on the main PCB are properly connected.  
(*1) If the main PCB version is 1.5.00 or later, press the key or switch which has been set by memory switch No. 650.  
166  
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16. TABLE OF ERROR CODES  
PCB-related errors  
Code  
Cause and remedy  
Abnormal rise in power supply voltage.  
Turn off the power and check the input voltage.  
Abnormal rise in sewing machine motor drive voltage.  
Turn off the power, and then check the voltage.  
Abnormal drop in power supply voltage.  
Turn off the power and check the input voltage.  
Abnormal current detected in sewing machine motor.  
Turn off the power, and then check if there are any problems with the sewing machine.  
Abnormal current detected in pulse motor.  
Turn off the power, and then check if there are any problems with the work clamp/button clamp operation.  
E700  
E701  
E705  
E710  
E711  
Version update errors  
Code  
Cause and remedy  
No control program is present.  
Repeat the version update procedure.  
Version update requests cannot be received.  
Turn off the power, and then turn it back on again.  
E870  
E880  
E881  
Version updating did not complete normally.  
Turn off the power, and then repeat the version update procedure.  
Communication error between main PCB and panel PCB detected.  
Turn off the power, and then check that connector P1 on the panel PCB, connector P5 on the main PCB and  
connectors P2 and P3 on the motor PCB are properly inserted.  
No control program is present on the SD card.  
Check that the control program has been saved into the correct folder.  
There is a problem with the control program.  
E882  
E883  
E884  
Save the correct file onto the SD card.  
E885  
-887  
Version updating could not be carried out.  
Turn off the power, and then turn it back on again.  
If an error code that is not listed above appears or if carrying out the specified remedy does not solve  
the problem, contact the place of purchase.  
KE-430F, BE-438F  
167  
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17. TROUBLESHOOTING  
17. TROUBLESHOOTING  
• Please check the following points before calling for repairs or service.  
• If the following remedies do not fix the problem, turn off the power switch and consult a qualified technician or the place of  
purchase.  
CAUTION  
Turn off the power switch and disconnect the power cord before carrying out troubleshooting, otherwise the  
machine may operate if the foot switch is depressed by mistake, which may result in injury.  
Problem  
Cause  
Remedy  
Ref.  
Work clamp does not  
rise. (KE-430F)  
Grease the sliding part of the work  
clamp.  
Work clamp operation is sluggish.  
P. 112  
Too much friction between work clamp  
lifter plate and work clamp arm lever  
plate.  
Grease the work clamp lifter plate and  
work clamp arm lever plate.  
P. 112  
Work clamp is contacting thread wiper.  
Work clamp is contacting thread wiper.  
Adjust the position of the thread wiper.  
Adjust the position of the thread wiper.  
Adjust the work clamp lift amount.  
P. 114  
P. 114  
P. 112  
Button clamp does not  
rise. (BE-438F)  
Work clamp lift amount  
is incorrect. (KE-430F)  
Incorrect position of work clamp arm  
lever plate  
Button clamp lift  
amount is incorrect.  
(BE-438F)  
Incorrect position of button clamp holder  
hook.  
Adjust the button clamp lift amount.  
Adjust the height of the thread wiper.  
P. 112  
P. 114  
P. 114  
P. 114  
Thread wiper does not  
operate correctly.  
The thread wiper is obstructing the  
needle.  
Adjust the operating distance of the  
thread wiper.  
Adjust the operating distance of the  
thread wiper.  
Thread wiper position is incorrect.  
CD  
Instruction  
manual  
Lower thread winds to  
one side.  
Height of bobbin winder tension Adjust the height of the bobbin winder  
assembly is incorrect.  
tension assembly.  
CD  
Instruction  
manual  
Lower thread winding  
amount is incorrect.  
Adjust the position of the bobbin  
presser.  
Bobbin presser position is incorrect.  
Thread comes  
unthreaded.  
Stitches being skipped at the sewing  
start.  
Refer to “Skipped stitches occur”  
Adjust the sub-tension.  
P. 169  
CD  
Instruction  
manual  
Uneven needle thread.  
CD  
Instruction  
manual  
Needle thread is too short.  
Use a thread nipper device.  
168  
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17. TROUBLESHOOTING  
Problem  
Cause  
Remedy  
Ref.  
CD  
Instruction  
manual  
Upper thread breaks.  
Upper thread tension is too strong.  
Adjust the upper thread tension.  
CD  
Instruction  
manual  
Needle is installed incorrectly.  
Install the needle correctly.  
Thread is too thick for the needle.  
Use the correct thread for the needle.  
P. 103  
P. 105  
Thread take-up spring tension and Adjust the tension and height of the  
height are incorrect. thread take-up spring.  
Damaged or burred rotary hook, needle File smooth or replace the affected  
hole plate or needle.  
part.  
CD  
Instruction  
manual  
Thread melting (synthetic thread)  
Use the needle cooler.  
CD  
Instruction  
manual  
Lower thread breaks.  
Lower thread tension is too strong.  
Adjust the lower thread tension.  
Corners of needle hole plate or bobbin File smooth or replace the affected  
case are damaged.  
part.  
Skipped stitches occur.  
Clearance between needle and rotary  
hook tip is too great.  
Adjust the needle clearance.  
P. 107  
P.107  
P. 107  
Incorrect needle and rotary hook timing. Adjust the needle bar lift amount.  
Driver is contacting needle more than is  
Adjust the driver needle guard.  
necessary.  
Needle is bent.  
Replace the needle.  
CD  
Instruction  
manual  
Needle is installed incorrectly.  
Install the needle correctly.  
Adjust the needle clearance.  
Adjust the needle bar lift amount.  
Replace the needle.  
Needle breaks.  
P. 107  
P. 107  
Needle is touching the rotary hook.  
Needle is bent.  
Needle is too thin.  
Use the correct needle for the material.  
Refer to “5-5. Checking the sewing  
P. 103  
CD  
Instruction  
manual  
Needle is striking the button. (BE-438F) pattern (BE-438F)” in the CD instruction  
manual.  
Button breaks.  
(BE-438F)  
Refer to “5-5. Checking the sewing  
pattern (BE-438F)” in the CD instruction  
manual.  
CD  
Instruction  
manual  
Needle is striking the button.  
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17. TROUBLESHOOTING  
Problem  
Cause  
Remedy  
Ref.  
Upper thread is not  
trimmed.  
Movable knife is blunt.  
Replace the movable knife.  
P. 111  
Fixed knife is blunt.  
Sharpen or replace the fixed knife.  
P. 111  
P. 108  
P. 107  
P. 169  
P. 110  
Adjust the position of the shuttle race  
thread guide.  
Movable knife does not pick up the  
thread.  
Adjust the needle bar lift amount.  
The movable knife does not pick up the  
thread because of skipped stitches at Refer to “Skipped stitches occur”.  
the sewing end.  
Adjust the position of the movable  
Movable knife position is incorrect.  
knife.  
CD  
Instruction  
manual  
Turn the sub-tension nut to adjust the  
Sub-tension is too weak.  
tension.  
Thread jamming.  
Thread take-up spring tension and Adjust the tension and height of the  
P. 105  
P. 107  
P. 108  
P. 108  
height are incorrect.  
thread take-up spring.  
Incorrect needle and rotary hook timing. Adjust the needle bar lift amount.  
Shuttle race thread guide is not Adjust the position of the shuttle race  
separating the threads.  
thread guide.  
Poor seam finish on  
Shuttle race thread guide is separating Adjust the position of the shuttle race  
reverse  
side  
of  
the threads insufficiently.  
thread guide.  
material.  
CD  
Instruction  
manual  
Upper thread is not properly tight.  
Adjust the upper thread tension.  
CD  
Instruction  
manual  
Uneven needle thread.  
Adjust the sub-tension.  
Adjust the sub-tension.  
CD  
Instruction  
manual  
<When using the thread nipper  
device>  
Turn the tension nut to adjust the upper  
thread trailing length to 35 – 38 mm.  
Needle thread is too long.  
Refer to “5-5. Checking the sewing  
Needle is striking the button. (BE-438F) pattern (BE-438F)” in the CD instruction  
manual.  
CD  
Instruction  
manual  
CD  
Incorrect thread  
tightness.  
Instruction  
manual  
Upper thread tension is too weak.  
Lower thread tension is too weak.  
Adjust the upper thread tension.  
Adjust the lower thread tension.  
CD  
Instruction  
manual  
Thread take-up spring tension and Adjust the tension and height of the  
P. 105  
height are incorrect.  
thread take-up spring.  
CD  
Instruction  
manual  
Machine does not  
operate when power is  
turned on and foot  
Check if the machine head switch cord  
is disconnected.  
switch is depressed.  
Adjust the position of the switching  
plate.  
Machine head switch does not work.  
P. 127  
Replace the machine head switch if it is  
broken.  
170  
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18. 7-SEGMENT DISPLAY LIST  
18. 7-SEGMENT DISPLAY LIST  
4268M  
KE-430F, BE-438F  
171  
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MEMO  
KE-430F, BE-438F  
172  
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MEMO  
KE-430F, BE-438F  
173  
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SERVICE MANUAL  
KE-430F, BE-438F  
I0070967B  
© 2011 Brother Industries, Ltd. All Rights Reserved.  
2011.04. B (2)  
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