Brother Sewing Machine 430C User Manual
KE-430B, 430C, 431B, 431C  
KE-432B, 432C, 433B  
KE-434B, 434C, 435B, 435C  
KE-436B, 436C, 484C  
BE-438B, 438C  
SERVICE MANUAL  
Please read this manual before using the machine.  
Please keep this manual within easy reach for quick reference.  
ELECTRONIC LOCKSTITCH BAR TACKER  
ELECTRONIC LOCKSTITCH BELT LOOP BAR TACKER  
ELECTRONIC LOCKSTITCH PATTERN TACKER  
ELECTRONIC LOCKSTITCH BUTTON SEWER  
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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 can result in  
severe injury.  
CAUTION  
Environmental requirements  
Use the sewing machine in an area which is free from  
sources of strong electrical noise such as  
high-frequency welders.  
Sources of strong electrical noise may cause prob-  
lems with correct operation.  
The ambient temperature should be within the range  
of 5C to 35C 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 for-  
mation 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 electrical  
consumption.  
Avoid exposure to direct sunlight during use.  
Exposure to direct sunlight may cause problems with  
correct operation.  
Insufficient power supply capacity may cause prob-  
lems with correct operation.  
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.  
The pneumatic delivery capability should be greater  
than the requirements for the sewing machine’s total  
air consumption.  
Insufficient pneumatic delivery capability 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 could occur.  
Contact your Brother dealer or a qualified electrician  
for any electrical work that may need to be done.  
The sewing machine weighs more than 52 kg. The  
installation should be carried out by two or more  
people.  
Install the belt covers to the machine head and motor.  
Do not connect the power cord until installation is  
complete, otherwise the machine may operate if the  
foot switch is depressed by mistake, which could  
result in injury.  
If using a work table which has casters, the casters  
should be secured in such a way so that they cannot  
move.  
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 could 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 connec-  
tion is not secure, you run a high risk of receiving a  
serious electric shock, and problems with correct  
operation may also occur.  
KE-430B, 430C series  
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ii  
CAUTION  
Sewing  
This sewing machine should only be used by opera-  
tors 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.  
Set the needle to the needle up stop position before  
turning off the power.  
If this is not done, the wiper may strike the needle,  
which might cause the needle to break.  
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.  
Turn off the power switch at the following times,  
otherwise the machine may operate if the foot switch  
is depressed by mistake, which could result in injury.  
If the machine develops a problem, contact your  
nearest Brother dealer or a qualified technician.  
When threading the needle  
When replacing the needle and bobbin  
When not using the machine and when leaving the  
machine unattended  
Cleaning  
Set the needle to the needle up stop position before  
turning off the power.  
If this is not done, the wiper may strike the needle,  
which might cause the needle to break.  
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 un-  
der any circumstances, as they can cause vomiting  
and diarrhoea.  
Turn off the power switch before carrying out  
cleaning, otherwise the machine may operate if the  
foot switch is depressed by mistake, which could  
result in injury.  
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.  
If the power switch and air need to be left on when  
carrying out some adjustment, be extremely careful to  
observe all safety precautions.  
Ask your Brother dealer or a qualified electrician to  
carry out any maintenance and inspection of the  
electrical system.  
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.  
Set the needle to the needle up stop position before  
turning off the power.  
If this is not done, the wiper may strike the needle,  
which might cause the needle to break.  
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 could result in injury.  
Use only the proper replacement parts as specified  
by Brother.  
If any safety devices have been removed, be abso-  
lutely 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 main-  
tenance  
When replacing consumable parts such as the ro-  
tary hook  
Any problems in machine operation which result from  
unauthorized modifications to the machine will not be  
covered by the warranty.  
Disconnect the air hoses from the air supply and wait  
for the needle on the pressure gauge to drop to “0”  
before carrying out inspection, adjustment and repair  
of any parts which use the pneumatic equipment.  
KE-430B, 430C series  
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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
2
Safety devices  
Eye guard  
Finger guard  
Thread take-up cover  
Thread take-up solenoid cover  
Belt cover  
High temperature warning display  
3
Frame side cover, etc.  
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.  
4
5
Direction of operation  
Thread take-up cover  
Frame  
side cover  
2670Q  
Eye guard  
Thread take-up  
solenoid cover  
Belt cover  
Finger guard  
KE-430B  
KE-430C  
2737Q  
KE-430B, 430C series  
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iv  
CONTENTS  
1. SPECIFICATIONS ...............................  
1-1. SPECIFICATIONS...........................................  
1
1
5
1-2. Standard thread tension...................................  
2. MECHANICAL DESCRIPTIONS .........  
2-1. Needle bar and thread take-up  
7
mechanisms.....................................................  
2-2. Lower shaft and shuttle race mechanisms.......  
7
9
2-3. Work clamp lifter mechanism........................... 10  
2-4. Work clamp open-close mechanism  
(KE-432B, 432C).............................................. 12  
2-5. Thread wiper mechanism................................. 13  
2-6. Feed mechanism ............................................. 15  
2-7. Thread trimmer mechanism ............................. 17  
2-8. Thread nipper mechanism ............................... 19  
2-9. Thread take-up mechanism ............................. 21  
3. DISASSEMBLY ................................... 22  
3-1. Covers.............................................................. 22  
3-2. Work clamp arm mechanism  
KE-430B, 430C series  
5. ADJUSTMENT..................................... 99  
5-1. Adjusting the needle bar height........................ 99  
5-2. Adjusting the needle bar lift amount................. 100  
5-3. Adjusting the driver needle guard .................... 101  
5-4. Adjusting the needle clearance........................ 101  
5-5. Adjusting the shuttle race thread guide............ 102  
5-6. Adjusting the clearance between the shuttle  
hook and bobbin case holder position bracket  
5-24. Adjusting the home position.............................. 126  
5-25. Adjusting the needle up stop position ............... 129  
5-26. Adjusting the tension of the upper shaft timing  
belt ................................................................... 129  
5-27. Checking the head position switch.................... 130  
5-28. Work clamp interchangeability  
(KE-433B)....................................................... 131  
5-29. Work clamp interchangeability (KE-434B,  
434C, 435B, 435C, 436B, 436C, 484C) ........... 131  
5-30. Adjustment of air pressure (Pneumatic  
(KE-484C)........................................................ 103  
5-7. Adjusting the work clamp lift amount  
specifications)................................................... 132  
5-31. Adjustment of inner clamping device ................ 132  
(KE-430B, 430C, 431B, 431C, 433B) .............. 104  
5-8. Adjusting the work clamp lift amount  
(KE-432B, 432C).............................................. 104  
5-9. Adjusting the work clamp lift amount (KE-434B,  
434C, 435B, 435C, 436B, 436C, 484C)........... 105  
5-10. Adjusting the button clamp lift amount  
6. TROUBLESHOOTING ........................ 133  
7. OPTIONAL PARTS ............................. 136  
8. ELECTRIC MECHANISM.................... 138  
8-1. Precautions at the time of adjustment................. 138  
8-2. Components inside the control box and  
(BE-438B, 438C).............................................. 106  
5-11. Work clamp pressure adjustment  
(KE-432B, 432C).............................................. 107  
5-12. Adjusting the holding pressure  
the operation panel........................................... 138  
8-3. Fuse explanation ................................................ 139  
8-4. Connectors ......................................................... 140  
8-5. Explanation of the DIP switches ......................... 147  
8-6. Explanation of the memory switches  
(BE-438B, 438C).............................................. 107  
5-13. Work clamp closing-distance adjustment  
(KE-432B, 432C).............................................. 108  
5-14. Adjusting the position of the button holder  
(BE-438B, 438C).............................................. 109  
5-15. Work clamp adjustment  
(KE-430*, 431*, 432*, 433B, 434*, 435*,  
484C, BE-438*) ................................................ 150  
8-7. Explanation of the memory switches  
(KE-435B, 435C, 436B, 436C)......................... 109  
5-16. Changing the work clamp lift  
(KE-436B, 436C).............................................. 155  
8-8. Setting the work clamp mode.............................. 159  
8-9. Checking the input sensor and DIP switch  
(KE-435B, 435C, 436B, 436C)......................... 110  
5-17. Adjusting the thread wiper................................ 111  
5-18. Adjusting the thread take-up amount................ 114  
5-19. Adjusting the movable knife.............................. 116  
5-20. Adjusting the position of the thread trimming  
link mechanism ................................................ 122  
5-21. Adjusting the backlash...................................... 123  
5-22. Adjusting the presser solenoid position  
input.................................................................. 161  
8-10. Checking the input voltage................................ 163  
8-11. Clearing all memory settings............................. 164  
8-12. Confirming software version ............................. 165  
8-13. Table of error codes.......................................... 167  
8-14. Troubleshooting................................................ 171  
8-15. Control circuit block diagram............................. 190  
(Solenoid specifications) .................................. 124  
5-23. Adjusting the sensor perceive plate position  
(Solenoid specifications) .................................. 125  
KE-430B, 430C series  
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1. SPECIFICATIONS  
１. SPECIFICATIONS  
１-１. SPECIFICATIONS  
1
5
2
7
1
2
7
Ordinary materials  
Denim  
Knitted materials  
Bar tacking length  
6 -14 mm  
Ordinary materials  
2
3
Denim  
Knitted materials  
Bar tacking length  
14 - 25 mm  
KE-432B  
KE-433B  
Electronic lockstitch  
decorative pattern  
tacker  
KE-430B  
Electronic lockstitch  
bar tacker  
KE-431B  
Electronic lockstitch  
belt loop bar tacker  
Electronic lockstitch  
eyelet buttonhole  
end bar tacker  
Stitch formation  
Single needle lock stitch  
2,700 rpm  
30 10 mm max.  
Maximum sewing speed  
Maximum pattern size  
Feed mechanism  
2,500 rpm  
12 3 mm max.  
30 30 mm max.  
R-intermittent feed mechanism (pulse-motor driven mechanism)  
Stitch length  
0.1 - 10.0 mm  
Number of stitches  
Maximum stitch number  
Work clamp lifter  
Variable  
20,000 stitches (including 10,000 stitches which can be added)  
Solenoid type  
Work clamp height  
Rotary hook  
17 mm max.  
Shuttle hook (shuttle hook 2, optional)  
Wiper device  
Standard equipment  
Thread trimmer device  
Thread take-up device  
Data storage method  
Number of user programs  
Number of cycle programs  
Standard equipment  
Standard equipment  
P-ROM (Any sewing pattern can be added using PS-3000.)  
16  
4
35 sewing patterns are 6 sewing patterns are  
set already set already  
3 sewing patterns are  
set already  
Number of stored data  
(Up to 100 patterns can be added. Total number of stitches of stored data  
which can be added is within 10,000.)  
Motor  
Three-phase 400W induction motor  
Machine head: 52 kg, Operation panel: 0.6 kg,  
Control box: 9 - 19 kg (depending on destination)  
Single-phase 110, 220 - 230, 240V  
Weights  
Power source  
3-phase 220-230, 380, 400V  
Maximum electric power consumption; 600VA  
KE-430B, 430C series  
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1
1. SPECIFICATIONS  
1
2
Medium materials  
Heavy materials  
KE-436B  
Electronic lockstitch  
pattern tacker  
with stepping foot  
and programming  
function  
KE-435B  
Electronic lockstitch  
pattern tacker  
KE-434B  
Electronic lockstitch  
pattern tacker  
BE-438B  
Electronic lockstitch  
button sewer  
with stepping foot  
Stitch formation  
Single needle lock stitch  
Maximum sewing speed  
Maximum pattern size  
Feed mechanism  
Stitch length  
2,500 rpm (Pitch 3 mm)  
2,500 rpm  
100 60 mm max.  
0 - 6.4 0 - 6.4 mm  
R-intermittent feed mechanism (pulse-motor driven mechanism)  
0.1 - 10.0 mm  
Variable  
Number of stitches  
20,000 stitches  
20,000 stitches (including 10,000 stitches  
which can be added)  
20,000 stitches  
(One pattern)  
(including 10,000  
stitches which can  
be added)  
Maximum stitch number  
Solenoid type or  
pneumatic type  
Work clamp lifter  
Pneumatic type  
17 mm max. (for solenoid)  
Solenoid type  
13 mm max.  
Work clamp height  
25 mm max. (for pneumatic) (Max. 17 mm for inner clamping device)  
Rotary hook  
Shuttle hook (shuttle hook 2, optional)  
Standard equipment  
Wiper device  
Thread trimmer device  
Thread take-up device  
Standard equipment  
Standard equipment  
Stepping foot lift amount  
18 mm  
Stepping foot stroke  
Safety device  
0 mm, 3 - 8 mm  
built-in stopping mechanism  
P-ROM (Any sewing  
pattern can be  
added using  
P-ROM (Any sewing pattern can be added  
using PS-3000.)  
3.5 floppy disk  
2HD/1.44MB, 2DD  
Data storage method  
PS-3000.)  
Number of user programs  
Number of cycle programs  
16  
4
16  
4
49 sewing patterns are  
set already  
Number of stored data  
(*)  
(*)  
Motor  
Three-phase 400W induction motor  
Machine head: 56 kg, Operation panel: 0.6 kg (2.8 kg: KE-436B),  
Control box: 9 - 19 kg (depending on destination)  
Single-phase 110, 220 - 230, 240V  
Weights  
Power source  
3-phase 220-230, 380, 400V  
Maximum electric power consumption; 600VA  
* Up to 100 patterns can be added. Total number of stitches of stored data which can be added is within 10,000.  
KE-430B, 430C series  
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2
1. SPECIFICATIONS  
1
2
7
Ordinary materials  
Denim  
Knitted materials  
Bar tacking length  
6 -14 mm  
Bar tacking length  
14 -25 mm  
2
3
KE-432C  
KE-430C  
Electronic lockstitch  
bar tacker  
KE-431C  
Electronic lockstitch  
belt loop bar tacker  
BE-438C  
Electronic lockstitch  
button sewer  
Electronic lockstitch  
eyelet buttonhole  
end bar tacker  
Stitch formation  
Single needle lock stitch  
Maximum sewing speed  
Maximum pattern size  
Feed mechanism  
2,700 rpm  
2,500 rpm  
30 26 mm max.  
30 10 mm max.  
12 3 mm max.  
0 - 6.4 0 - 6.4 mm  
R-intermittent feed mechanism (pulse-motor driven mechanism)  
Stitch length  
0.1 - 10.0 mm  
Number of stitches  
Maximum stitch number  
Work clamp lifter  
Variable  
20,000 stitches (including 10,000 stitches which can be added)  
Solenoid type  
Work clamp height  
Rotary hook  
17 mm max.  
13 mm max.  
Shuttle hook (shuttle hook 2, optional)  
Wiper device  
Standard equipment  
Thread trimmer device  
Thread take-up device  
Data storage method  
Number of user programs  
Number of cycle programs  
Standard equipment  
Standard equipment  
P-ROM (Any sewing pattern can be added using PS-3000.)  
16  
4
61 sewing patterns are 6 sewing patterns are  
set already set already  
3 sewing patterns are 49 sewing patterns are  
set already set already  
Number of stored data  
(Up to 100 patterns can be added. Total number of stitches of stored data  
which can be added is within 10,000.)  
Motor  
Three-phase 400W induction motor  
Machine head: 52 kg, Operation panel: 0.6 kg,  
Control box: 9 - 19 kg (depending on destination)  
Single-phase 110, 220 - 230, 240V  
Weights  
Power source  
3-phase 220-230, 380, 400V  
Maximum electric power consumption; 600VA  
KE-430B, 430C series  
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3
1. SPECIFICATIONS  
1
2
Medium materials  
Heavy materials  
KE-436C  
Electronic lockstitch  
pattern tacker  
with stepping foot  
and programming  
function  
KE-435C  
Electronic lockstitch  
pattern tacker  
KE-484C  
Electronic lockstitch  
pattern tacker  
KE-434C  
Electronic lockstitch  
pattern tacker  
with stepping foot  
with treble hook  
Stitch formation  
Single needle lock stitch  
2,500 rpm (Pitch 3 mm)  
100 60 mm max.  
2,200 rpm  
(Pitch 3 mm)  
Maximum sewing speed  
Maximum pattern size  
Feed mechanism  
Stitch length  
R-intermittent feed mechanism (pulse-motor driven mechanism)  
0.1 - 10.0 mm  
Variable  
Number of stitches  
20,000 stitches  
20,000 stitches (including 10,000 stitches  
which can be added)  
20,000 stitches  
(One pattern)  
(including 10,000  
stitches which can  
be added)  
Maximum stitch number  
Solenoid type or  
pneumatic type  
Work clamp lifter  
Pneumatic type  
17 mm max. (for solenoid), 25 mm max. (for pneumatic)  
(Max. 17 mm for inner clamping device)  
Work clamp height  
Rotary hook  
Shuttle hook (shuttle hook 2, optional)  
Standard equipment  
Treble hook  
Wiper device  
Thread trimmer device  
Thread take-up device  
Standard equipment  
Standard equipment  
Stepping foot lift amount  
18 mm  
Stepping foot stroke  
Safety device  
0 mm, 3 - 8 mm  
built-in stopping mechanism  
P-ROM (Any sewing  
pattern can be  
added using  
P-ROM (Any sewing pattern can be added  
using PS-3000.)  
3.5 floppy disk  
2HD/1.44MB, 2DD  
Data storage method  
PS-3000.)  
Number of user programs  
Number of cycle programs  
16  
4
16  
4
Number of stored data  
(*)  
(*)  
Motor  
Three-phase 400W induction motor  
Machine head: 56 kg, Operation panel: 0.6 kg (2.8 kg: KE-436C),  
Control box: 9 - 19 kg (depending on destination)  
Single-phase 110, 220 - 230, 240V  
Weights  
Power source  
3-phase 220-230, 380, 400V  
Maximum electric power consumption; 600VA  
* Up to 100 patterns can be added. Total number of stitches of stored data which can be added is within 10,000.  
KE-430B, 430C series  
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4
1. SPECIFICATIONS  
１-２. Standard thread tension  
[KE-430B, 430C, 431B, 431C, 432B, 432C, 433B, 434B, 434C, 435B, 435C, 436B, 436C]  
Medium materials  
Heavy materials (Denim)  
(Ordinary materials)  
Knitted materials  
Standard hook  
Use  
Standard hook  
Large hook  
Standard hook  
Large hook  
#50 or  
equivalent  
#60 or  
#30 or  
equivalent  
#50 or  
Upper thread  
Lower thread  
←
←
#60 or equivalent  
←
1.0 - 1.3  
←
←
1.4 - 1.8  
←
#80 or equivalent  
0.8 - 1.2  
equivalent  
equivalent  
Upper thread tension  
(N)  
Lower thread tension  
(N)  
0.8 - 1.2  
0.2 - 0.3  
1.2 - 1.6  
0.2 - 0.3  
0.25 - 0.3  
Thread take-up  
spring height  
(mm)  
Thread take-up  
spring tension  
(N)  
6 - 8  
←
←
6 - 8  
←
←
6 - 8  
0.3 - 0.4  
0.5 - 0.6  
0.3 - 0.4  
Pre-tension (N)  
Needle  
0.5 - 0.8  
←
←
0.3 - 0.5  
←
←
0.5 - 0.8  
DP×5＃14  
DP×17NY＃19  
DP×5＃9  
[BE-438B, 438C, KE-484C]  
Model  
BE-438B  
BE-438C  
KE-484C  
DP×17＃25  
#4 or equivalent  
#4 or equivalent  
4.5 - 5.0  
Needle  
TQ×1＃12  
TQ×1＃12  
#60 or equivalent  
#60 or equivalent  
DP×17NY＃12  
Upper thread  
Lower thread  
#60 or equivalent  
#60 or equivalent  
0.7 - 1.3  
Upper thread tension  
(N)  
0.7 - 1.3  
0.7 - 1.5  
Lower thread tension  
(N)  
Thread take-up  
spring height  
(mm)  
0.3 - 0.4  
6 - 8  
0.3 - 0.4  
6 - 8  
1.0 - 1.2  
0 - 5  
Thread take-up  
spring tension  
(N)  
0.4 - 0.6  
0.1 - 0.3  
0.4 - 0.6  
2.0 - 2.5  
0.3 - 0.5  
Pre-tension (N)  
0.1 - 0.3  
0.05 - 0.3  
KE-430B, 430C series  
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5
1. SPECIFICATIONS  
１-２-１. Measuring tension  
Upper thread tension  
Lower thread tension  
3564Q  
3565Q  
Thread take-up spring height  
Thread take-up spring tension  
1–2 mm  
Measure the value when the thread take-up  
spring starts to extend.  
3566Q  
3567Q  
* 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-430B, 430C series  
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6
2. MECHANICAL DESCRIPTIONS  
２. MECHANICAL DESCRIPTIONS  
The mechanisms operate in the order of the numbers given in the illustrations.  
２-１. Needle bar and thread take-up mechanisms  
With stepping foot  
1. Pulley  
2. Upper shaft  
<3> Stepping foot connecting rod  
<4> Stepping foot arm  
<5> Stepping link assy  
<6> Presser bar lifter  
3. Thread take-up crank  
4. Needle bar crank  
5. Needle bar connecting rod  
6. Needle bar clamp  
7. Needle bar  
<7> Stepping foot  
3240Q  
KE-430B, 430C series  
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7
2. MECHANICAL DESCRIPTIONS  
KE-484C  
1. Pulley  
2. Upper shaft  
3. Thread take-up crank  
4. Needle bar crank  
5. Needle bar connecting rod  
6. Needle bar clamp  
7. Needle bar  
3241Q  
KE-430B, 430C series  
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8
2. MECHANICAL DESCRIPTIONS  
２-２. Lower shaft and shuttle race mechanisms  
1. Pulley  
2. Upper shaft  
3. Crank rod assy  
4. Rock gear  
5. Lower gear  
6. Lower shaft  
7. Driver  
8. Shuttle hook  
3242Q  
KE-484C  
1. Pulley  
2. Upper shaft  
3. Timing pulley  
4. Timing belt  
5. Tension pulley arm  
6. Lower shaft timing pulley  
7. Lower shaft  
8. Lower gear  
9. Rotary hook shaft  
10.Treble hook assy  
3243Q  
KE-430B, 430C series  
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9
2. MECHANICAL DESCRIPTIONS  
２-３. Work clamp lifter mechanism  
3244Q  
1. Work clamp solenoid  
2. Plunger  
3. Link assy, C  
4. Link shaft, B  
5. Link, B  
6. Link shaft, C  
7. Work clamp plate  
8. Work clamp arm lever plate  
9. Work clamp arm lever shaft  
10.Work clamp arm lever  
11.Work clamp  
* When the presser solenoid is turned off, the  
presser plate rises, and work clamps lower.  
KE-432B, 432C  
BE-438B, 438C  
7. Work clamp lifting rod  
8. Button clamp lifting lever  
9. Button clamp holder hook assy  
10. Button clamp holder shaft  
11. Button clamp  
7. Work clamp lifting rod  
8. Work clamp lifter lever  
9. Presser adjusting plate assy  
10. Button clamp holder shaft  
11. Work clamp  
3266Q  
3267Q  
KE-430B, 430C series  
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10  
2. MECHANICAL DESCRIPTIONS  
3245Q  
Pneumatic specifications  
1. Air cylinder  
2. Work clamp arm lever shaft  
3. Work clamp arm lever  
4. Work clamp  
KE-430B, 430C series  
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11  
2. MECHANICAL DESCRIPTIONS  
２-４. Work clamp open-close mechanism (KE-432B, 432C)  
1. Solenoid assy  
2. OY solenoid pin  
3. Sensor plate  
4. Work clamp carrier rod assy  
5. Lever  
3262Q  
6. Roller  
7. Work clamp carrier plate  
8. Work clamp guide plate  
9. Screw  
10.Work clamp  
KE-430B, 430C series  
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12  
2. MECHANICAL DESCRIPTIONS  
２-５. Thread wiper mechanism  
3246Q  
When the presser solenoid is turned off, the  
presser plate rises, and thread wiper operates in  
the opposite direction.  
1. Work clamp solenoid  
2. Plunger  
3. Link assy, C  
4. Link shaft, B  
5. Thread wiper driving lever  
6. Thread wiper rod assy  
7. Thread wiper arm assy  
8. Thread wiper  
3247Q  
Solenoid type thread wiper  
1. Thread wiper solenoid  
2. Thread wiper connecting rod assy  
3. Thread wiper arm assy  
4. Thread wiper  
KE-430B, 430C series  
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13  
2. MECHANICAL DESCRIPTIONS  
Stepping foot specifications  
1. Thread wiper solenoid  
2. Thread wiper connecting rod assy  
3. Thread wiper arm assy  
4. Thread wiper  
3248Q  
KE-484C  
1. Thread wiper cylinder  
2. Thread wiper connecting rod lever  
3. Thread wiper connecting rod  
4. Thread wiper arm assy  
5. Thread wiper  
3249Q  
KE-430B, 430C series  
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14  
2. MECHANICAL DESCRIPTIONS  
２-６. Feed mechanism  
Sewing patterns are created through combinations of X and Y movements.  
KE-430B, 431B, 432B, 433B, BE-438B  
KE-430C, 431C, 432C, BE-438C  
X direction  
1. Pulse motor, X  
2. Coupling hub, 6.35  
3. Coupling spacer  
4. Coupling hub, 8  
5. Feed cam, X  
3250Q  
6. Feed cam roller  
7. X-feed lever  
8. Tack length regulator block assy  
9. Feed bracket  
Y direction  
1. Pulse motor, Y  
2. Coupling hub, 6.35  
3. Coupling spacer  
4. Coupling hub, 8  
5. Feed cam, Y  
6. Feed cam roller  
7. Y-feed lever  
8. Tack width feed shaft  
9. Feed bracket  
3251Q  
KE-430B, 430C series  
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15  
2. MECHANICAL DESCRIPTIONS  
KE-434B, 435B, 436B  
KE-434C, 435C, 436C, 484C  
X direction  
1. Pulse motor, X  
2. Coupling hub, 8  
3. Coupling spacer  
4. Coupling hub, 8  
5. Feed cam, X  
3252Q  
6. Feed cam roller  
7. X-feed lever  
8. Tack length regulator block assy  
9. Feed bracket  
Y direction  
1. Pulse motor, Y  
2. Coupling hub, 8  
3. Coupling spacer  
4. Coupling hub, 8  
5. Feed cam, Y  
3253Q  
6. Feed cam roller  
7. Y-feed lever  
8. Tack width regulator block assy  
9. Feed bracket  
KE-430B, 430C series  
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16  
2. MECHANICAL DESCRIPTIONS  
２-７. Thread trimmer mechanism  
1. Thread trimmer solenoid  
2. Driving lever push lever  
3. Thread driving lever  
4. Thread trimmer roller  
5. Thread trimmer cam  
6. Thread trimmer rod  
7. Thread trimmer lever  
8. Connecting rod lever assy  
9. Thread trimmer connecting rod  
10. Movable knife  
3254Q  
11. Fixed knife  
KE-430B, 430C series  
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17  
2. MECHANICAL DESCRIPTIONS  
KE-484C  
1. Thread trimmer solenoid  
2. Driving lever push lever  
3. Thread driving lever  
4. Thread trimmer roller  
5. Thread trimmer cam  
6. Thread trimmer rod  
7. Thread trimmer lever  
8. Thread trimmer rod, L  
9. Thread trimmer connecting rod  
10. Movable knife  
11. Thread trimmer cylinder  
12. Extension rod  
13. Fixed knife  
3255Q  
KE-430B, 430C series  
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18  
2. MECHANICAL DESCRIPTIONS  
２-８. Thread nipper mechanism  
Manual operation  
1. Lifting lever  
2. Lifting crank  
3. Tension release lever  
4. Tension release stud  
5. Tension release pin  
3256Q  
In thread trimming  
3257Q  
1. Thread trimmer solenoid  
2. Driving lever push lever  
3. Thread driving lever  
7. Tension release driving lever  
8. Tension release lever, U  
9. Tension release rod assy  
4. Tension release driving lever 10. Tension release lever  
5. Lower thread retainer collar 11. Tension release stud  
6. Thread trimmer cam  
12. Tension release pin  
KE-430B, 430C series  
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19  
2. MECHANICAL DESCRIPTIONS  
KE-484C  
1. Tension release cylinder  
2. Tension release pin push lever  
3. Tension release pin, L  
4. Tension release pin  
3258Q  
KE-430B, 430C series  
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20  
2. MECHANICAL DESCRIPTIONS  
２-９. Thread take-up mechanism  
3259Q  
Stepping foot specifications  
1. Thread take-up solenoid  
2. Solenoid joint  
3. Thread take-up lever crank  
4. Thread take-up lever  
3260Q  
3261Q  
KE-484C  
1. Thread take-up cylinder  
2. Thread take-up lever  
3. DISASSEMBLY  
３. DISASSEMBLY  
CAUTION  
Disassembly should only be carried out by a  
qualified technician.  
Disconnect the air hoses from the air supply  
and wait for the needle on the pressure gauge  
to drop to “0” before disassembly of any parts  
which use the pneumatic equipment.  
Turn off the power switch before disassembly,  
otherwise the machine may operate if the foot  
switch is depressed by mistake, which could  
result in injury.  
Use only the proper replacement parts as  
specified by Brother.  
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.  
Any problems in machine operation which  
result from unauthorized modifications to the  
machine will not be covered by the warranty.  
Keep the oil out of the reach of children.  
Disassemble each part in order of the numbers.  
3269Q  
３-１. Covers  
KE-430B, 431B, 432B, 433B, BE-438B  
KE-430C, 431C, 432C, BE-438C  
1. Top cover  
2. Belt cover  
3. Frame side cover  
4. Bed cover, LF  
5. Bed cover, LR  
6. Bed cover, R  
7. Eye guard assy  
8. Face plate assy  
9. Shuttle race cover assy  
3268Q  
KE-430B, 430C series  
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22  
3. DISASSEMBLY  
KE-434B, 435B, 436B  
KE-434C, 435C, 436C, 484C  
3270Q  
<KE-435B, 435C>  
<KE-436B, 436C>  
1. Top cover  
2. Belt cover  
3. Frame side cover  
4. Bed cover, LF  
5. Bed cover, LR  
6. Bed cover, R  
7. Eye guard assy  
8. Bolts [2 pcs]  
9. Face plate assy  
10. Shuttle race cover assy  
11. Auxiliary plate supports [2 pcs]  
12. Needle plate auxiliary plate  
13. Auxiliary plate supports [4 pcs]  
3269Q  
KE-430B, 430C series  
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23  
3. DISASSEMBLY  
３-２. Work clamp arm mechanism (KE-430B, 430C, 431B, 431C)  
Be careful not to drop these three bearing balls  
when removing the work clamp arm assembly.  
1. Set screw  
2. Needle  
3. Needle bar thread guide  
4. Bolts [2 pcs]  
5. Work clamp arm assy  
6. Work clamp felt  
7. Screws [2 pcs]  
8. Feed plate  
3271Q  
Be careful not to drop these two bearing balls  
when removing the feed bracket assembly.  
9. Rubber cap  
10. Set screw [Loosen]  
11. Tack width feed shaft  
12. Rod end  
Remove the feed bracket guide  
plate and the feed bracket  
assembly together as a single unit.  
13. Screws [8 pcs]  
14. Feed bracket guide plate  
15. Feed bracket assy  
16. Flat screws [2 pcs]  
17. Screws [2 pcs]  
3272Q  
18. Needle plate  
KE-430B, 430C series  
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24  
3. DISASSEMBLY  
３-３. Work clamp arm mechanism (KE-432B, 432C)  
3273Q  
Be careful not to drop these two bearing balls  
when removing the feed bracket assembly.  
Remove the feed bracket  
guide plate and the feed  
bracket assembly together  
as a single unit.  
3274Q  
1. Set screw  
2. Needle  
3. Needle bar thread guide  
4. Bolt  
7. Button clamp holder shaft  
8. Work clamp arm assy  
9. Bolts [2 pcs]  
16. Tack width feed shaft  
17. Rod end  
18. Screws [8 pcs]  
10. Button clamp holder support 19. Feed bracket guide plate  
5. Nuts [2 pcs]  
11. Work clamp felt  
12. Screws [2 pcs]  
13. Feed plate  
14. Rubber cap  
15. Set screw [Loosen]  
20. Feed bracket assy  
21. Flat screws [2 pcs]  
22. Screws [2 pcs]  
23. Needle plate  
Adjusting screw  
Compression spring  
[Push upward and remove horizontally]  
6. Set screws [2 pcs: Loosen]  
KE-430B, 430C series  
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25  
3. DISASSEMBLY  
３-４. Work clamp arm mechanism (KE-433B)  
Be careful not to drop these three bearing balls  
when removing the work clamp arm assembly.  
1. Set screw  
2. Needle  
3. Needle bar thread guide  
4. Bolts [2 pcs]  
5. Work clamp arm assy  
6. Work clamp felt  
7. Bolts [2 pcs]  
8. Feed plate  
3275Q  
9. Rubber cap  
10. Set screw [Loosen]  
11. Tack width feed shaft  
12. Screws [8 pcs]  
13. Feed bracket guide plate  
[Pull upward]  
14. Screw  
15. Cover support stand  
16. Feed bracket cover  
17. Set screw [Loosen]  
18. Tack length regulator block  
[Pull out]  
19. Feed bracket guide shaft assy  
20. Retainer assys [2 pcs]  
21. Spacers [2 pcs]  
22. Feed bracket assy  
23. X feed cover  
Remove the feed brack-  
et guide plate as a single  
assembly with the feed  
bracket and other parts  
still assembled.  
24. Y feed cover  
Be careful not to drop the two bearing balls  
when removing the feed bracket guide shaft  
assembly.  
25. Flat screws [2 pcs]  
26. Screws [2 pcs]  
27. Needle plate  
3276Q  
KE-430B, 430C series  
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26  
3. DISASSEMBLY  
３
-５  
. Work clamp arm mechanism (KE-434B, 434C, 435B, 435C, 436B, 436C, 484C)  
KE-434B, 434C Solenoid specification  
1. Set screw  
2. Needle  
3. Needle bar thread guide  
4. Bolts [2 pcs: pneumatic spec. only]  
5. Cylinder support  
[pneumatic spec. only]  
6. Bolts [2 pcs]  
7. Work clamp arm assy  
8. Bolts [2 pcs]  
9. Feed plate  
10. Feed bracket cover  
3277Q  
KE-430B, 430C series  
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27  
3. DISASSEMBLY  
3278Q  
1) Turn the Y-feed lever forward as  
far as it will go.  
Tack width regulator  
block assy  
2) Lift up feed bracket guide plate R  
and the feed bracket assembly  
together, remove the tack width  
regulator block assembly from the  
Y-feed lever, and pull all of them  
forward to remove them.  
Y-feed lever  
3279Q  
11. Rubber cap  
12. Set screw [Loosen]  
13. Tack length regulator block assy  
14. Retainer assys [2 pcs]  
15. Spacers [2 pcs]  
16. Screws [2 pcs]  
17. Flat screws [2 pcs]  
18. Feed bracket guide plate, R  
19. Feed bracket assy  
20. X-feed lever cover  
21. Flat screws [2 pcs]  
22. Screws [2 pcs]  
23. Needle plate  
KE-430B, 430C series  
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28  
3. DISASSEMBLY  
３-６. Work clamp arm mechanism (BE-438B, 438C)  
3280Q  
Be careful not to drop these two bearing balls  
when removing the feed bracket assembly.  
3281Q  
Remove the feed bracket  
guide plate and the feed  
bracket assembly together  
as a single unit.  
15. Tack width feed shaft  
16. Rod end  
1. Set screw  
7. Button clamp holder  
8. Bolts [2 pcs]  
2. Needle  
17. Screws [8 pcs]  
3. Needle bar thread guide  
4. Nuts [2 pcs]  
9. Button clamp holder support  
10. Work clamp felt  
11. Screws [2 pcs]  
12. Feed plate  
13. Rubber cap  
14. Set screw [Loosen]  
18. Feed bracket guide plate  
19. Feed bracket assy  
20. Flat screws [2 pcs]  
21. Screws [2 pcs]  
Adjusting screw  
Compression spring  
[Push upward and remove horizontally]  
5. Set screws [2 pcs: Loosen]  
6. Button clamp holder shaft  
22. Needle plate  
KE-430B, 430C series  
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29  
3. DISASSEMBLY  
３-７. Shuttle hook mechanism  
3282Q  
1. Bobbin case assy  
2. Shuttle race base setting claw  
[Open to right and left]  
3. Shuttle race base  
4. Shuttle hook  
3283Q  
KE-484C  
1. Bobbin case assy  
2. Screw  
3. Hook stopper setting base  
4. Set screw [Loosen]  
5. Treble hook assy  
KE-430B, 430C series  
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30  
3. DISASSEMBLY  
３-８. Needle bar mechanism  
3285Q  
3284Q  
1. Rubber cap  
2. Screw  
3. Needle bar  
4. Slide block  
5. Needle bar clamp  
[Pull out]  
6. Rubber cap  
7. Set screw [Loosen]  
8. Wick  
[Pull out from arm]  
9. Thread take-up support  
shaft  
10. Thread take-up support  
11. Oil cap  
12. Set screw [Loosen]  
13. Set screw [Loosen]  
14. Needle bar connect-  
ing rod  
3286Q  
15. Needle bearing  
16. Thread take-up lever  
17. Rubber caps [2 pcs]  
18. Screws [2 pcs]  
19. Needle bar guide  
Do not remove the needle bar guide if possible to  
prevent the machine from overheating due to needle  
bar rubbing.  
KE-430B, 430C series  
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31  
3. DISASSEMBLY  
３-９. Stepping foot mechanism (KE-435B, 435C, 436B, 436C)  
Note:  
Remove the presser adjusting screw gently, as the presser bar  
spring guide and the presser bar spring may fly out at this time.  
Remove the stepping link assembly and the  
presser bar lifter together as a single unit.  
1. Screw  
2. Finger guard  
3. Presser foot  
4. Presser adjusting screw  
5. Presser bar spring guide  
6. Presser bar spring  
7. Washer  
3287Q  
8. Screw [Loosen]  
9. Presser bar clamp  
10. Cushion  
11. Presser bar  
12. Screws [2 pcs]  
13. Stepping link assy  
14. Presser bar lifter  
15. Nut  
16. Feed lifter lever shaft  
17. Bolt [Loosen]  
18. Stepping foot arm, R  
19. Stepping foot arm, F [Pull out]  
KE-430B, 430C series  
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32  
3. DISASSEMBLY  
３-１０. Upper shaft mechanism  
3288Q  
<KE-435B, 435C>  
<KE-436B, 436C>  
1. Screw [Loosen]  
2. Set screw [Loosen]  
3. Thread take-up crank  
4. Screws [2 pcs]  
5. Thread trimmer solenoid  
6. Screw  
7. Wick support  
8. Screws [2 pcs]  
9. Crank rod (Upper part)  
10. Crank rod (Lower part)  
[Lower downward］  
11. Set screws [2 pcs: Loosen]  
<11> Set screws [2 pcs: Loosen]  
12. Set screws [2 pcs: Loosen]  
13. Motor connector  
14. Nut [Loosen]  
15. Bolt [Loosen]  
16. Bolts [3 pcs]  
17. Motor bracket  
18. Upper shaft timing belt  
19. Set screws [2 pcs: Loosen]  
20. Timing pulley assy, U  
21. Screws [2 pcs]  
3289Q  
22. Synchronizer assy  
23. Upper shaft  
24. Thrust washer  
25. Bobbin winder pulley  
<25> Stepping foot connecting rod  
26. Thread trimmer cam  
KE-430B, 430C series  
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33  
3. DISASSEMBLY  
3290Q  
KE-484C  
3291Q  
1. Screw [Loosen]  
13. Nuts [2 pcs: Loosen]  
14. Adjusting screw [Loosen]  
15. Adjusting screw [Loosen]  
16. Tension pulley arm  
17. Set screws [2 pcs: Loosen]  
18. Set screws [2 pcs: Loosen]  
19. Set screws [2 pcs: Loosen]  
20. Motor connector  
25. Upper shaft timing belt  
2. Set screw [Loosen]  
3. Thread take-up crank  
4. Screws [2 pcs]  
5. Thread trimmer solenoid  
6. Belt cover support pillars [2 pcs]  
7. Screws [4 pcs]  
26. Set screws [2 pcs: Loosen]  
27. Timing pulley assy, U  
28. Screws [2 pcs]  
29. Synchronizer assy  
30. Upper shaft  
31. Thrust washer  
8. Blind plate  
32. Bobbin winder pulley  
33. Thread trimmer cam  
34. U-timing pulley, F  
35. U-timing belt, F  
9. Frame side cover  
10. Setting plate packing  
11. Nut  
21. Nut [Loosen]  
22. Bolt [Loosen]  
23. Bolts [3 pcs]  
12. Plain washer  
24. Motor bracket  
KE-430B, 430C series  
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34  
3. DISASSEMBLY  
３-１１. Lower shaft mechanism  
Tilt the machine head.  
3292Q  
KE-430C series  
BE-438C  
KE-430B series  
BE-438B  
Remove the rock gear and the  
crank rod together as a single unit.  
3293Q  
1. Support [Turn in the direction of the arrow]  
2. Felt holder  
3. Bolt [Loosen]  
9. Set screws [2 pcs: Loosen]  
10. Wick [Untie the knot]  
11. Set screws [2 pcs: Loosen]  
12. Rock gear shaft  
4. Driver  
5. Retaining ring  
6. Set screws [2 pcs: Loosen]  
7. Lower shaft assy  
[Pull out from the rear of the machine]  
13. Set screw collar  
14. Rock gear  
[Pull out from the rear of the machine]  
8. Set screw collar  
15. Crank rod (Lower part)  
KE-430B, 430C series  
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35  
3. DISASSEMBLY  
3294Q  
KE-484C  
Tilt the machine head.  
Note:  
This part consists of three smaller parts  
which should not be disassembled.  
1. Set screw [Loosen]  
2. Lower gear  
3. Set screws [2 pcs: Loosen]  
4. Rotary hook shaft  
5. Set screw collar  
6. Lower shaft gear spacer  
7. Thrust bearing  
8. Set screw [Loosen]  
9. Wick [Untie the knot]  
10. Lower shaft  
[Pull out from the rear of the machine]  
11. Lower shaft timing pulley  
12. U-timing belt, F  
3295Q  
KE-430B, 430C series  
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36  
3. DISASSEMBLY  
３-１２. Feed mechanism (1)  
KE-430B, 431B, 432B, 433B, BE-438B  
KE-430C, 431C, 432C, BE-438C  
Tilt the machine head.  
Return the machine head to its  
original position.  
3296Q  
If the tack width feed lever shaft cannot  
be removed, remove the retaining ring.  
Retaining  
ring  
3297Q  
1. Set screws [2 pcs: Loosen]  
2. Set screw collar  
3. Set screw [Loosen]  
4. Tack width feed lever shaft (with retaining  
ring) [Pull upward]  
5. Thrust washer  
6. Wicks [3 pcs: Pull out from oil supply hole]  
7. Y-feed lever assy [Pull upward]  
8. Thrust washer  
Oil supply  
hole  
9. X-feed lever assy [Pull upward]  
10. Screw  
11. Home sensor setting plate  
12. Screw  
13. Cord holder  
14. Screw  
15. Home sensor setting plate  
16. Screw  
17. Cord holder  
3298Q  
KE-430B, 430C series  
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37  
3. DISASSEMBLY  
KE-434B, 435B, 436B  
KE-434C, 435C, 436C, 484C  
Tilt the machine head.  
Return the machine head to its  
original position.  
3296Q  
If the tack width feed lever shaft cannot  
be removed, remove the retaining ring.  
Retaining  
ring  
3299Q  
1. Set screws [2 pcs: Loosen]  
2. Set screw collar  
3. Set screw [Loosen]  
Oil supply  
hole  
4. Tack width feed lever shaft (with retaining  
ring) [Pull upward]  
5. Thrust washer  
6. Wicks [3 pcs: Pull out from oil supply hole]  
7. Y-feed lever assy [Pull upward]  
8. Thrust washer  
9. X-feed lever assy [Pull upward]  
10. Screw  
11. Y-sensor setting plate  
12. Screw  
13. X-sensor setting base  
14. Screws [3 pcs]  
3300Q  
15. Cord clamps [3 pcs]  
KE-430B, 430C series  
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38  
3. DISASSEMBLY  
３-１３. Feed mechanism (2)  
3301Q  
KE-430B, 431B, 432B, 433B, BE-438B  
KE-430C, 431C, 432C, BE-438C  
1. Bolts [4 pcs]  
2. Pulse motor assy, X  
[Disconnect the harness]  
3. Bolts [4 pcs]  
4. Pulse motor assy, Y  
[Disconnect the harness]  
5. Coupling spacer  
6. Set screws [2 pcs: Loosen]  
7. Coupling hub, 6.35  
8. Screws [2 pcs]  
9. Feed cam bracket  
10. Positioning pins [2 pcs]  
11. Screw  
12. Feed home position dog  
13. Set screws [2 pcs: Loosen]  
14. Coupling hub, 8  
15. Set screws [2 pcs: Loosen]  
16. Cam shaft  
17. Ball bearings [2 pcs]  
18. Feed cam  
Same for both  
X and Y  
3302Q  
KE-430B, 430C series  
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39  
3. DISASSEMBLY  
KE-434B, 435B, 436B  
KE-434C, 435C, 436C, 484C  
3303Q  
3304Q  
1. Bolts [4 pcs]  
13. Positioning pins [2 pcs]  
2. Pulse motor assy, X [Disconnect the harness]  
3. PM bracket, X  
14. Set screws [2 pcs: Loosen]  
15. Coupling hub, 8  
4. Ball bearing  
16. Coupling spacer  
5. Bolts [4 pcs] [3 pcs: KE-484C]  
6. Pulse motor assy, Y [Disconnect the harness]  
7. Set screws [2 pcs: Loosen]  
8. Set screw collar  
17. Set screws [2 pcs: Loosen]  
18. Feed cam  
19. Ball bearing [X side only]  
20. Ball bearing  
9. PM bracket, Y  
21. Cam shaft  
10. Ball bearing  
11. Screws [2 pcs]  
22. Set screws [2 pcs: Loosen]  
23. Coupling hub, 8  
12. Y-feed cam bracket  
KE-430B, 430C series  
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40  
3. DISASSEMBLY  
３-１４. Work clamp lifter mechanism (Solenoid specifications)  
KE-430B, 431B, 433B, 434B  
KE-430C, 431C, 434C  
1. Springs [2 pcs]  
2. Screws [2 pcs]  
3. Guide  
4. Snap pins [2 pcs]  
5. Rubber cap  
6. Link shaft, D [Pull out]  
7. Set screws [2 pcs: Loosen]  
8. Snap pins [2 pcs]  
9. Link shaft, A [Pull out]  
10. Washers [2 pcs]  
Be careful not to drop.  
3305Q  
3306Q  
11. Oil cap  
12. Snap pin  
Note:  
Hold the work clamp plate  
when removing link shaft  
C, otherwise the work  
clamp plate may fall  
down.  
<KE-433B, 434B, 434C>  
13. Link shaft, C [Pull out]  
14. Work clamp plate  
15. Work clamp lifter link-related parts  
16. Rubber caps [2 pcs]  
17. Screws [2 pcs]  
Do  
not  
remove,  
18. Screws [4 pcs]  
otherwise the work  
clamp will not move  
smoothly.  
19. Presser solenoid assy  
[Disconnect the harness]  
3307Q  
KE-430B, 430C series  
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41  
3. DISASSEMBLY  
KE-432, 432C  
BE-438, 438C  
1. Springs [2 pcs]  
2. Screws [2 pcs]  
3. Guide  
4. Snap pins [2 pcs]  
5. Rubber cap  
6. Link shaft, D [Pull out]  
7. Set screws [2 pcs: Loosen]  
8. Snap pins [2 pcs]  
9. Link shaft, A [Pull out]  
10. Washers [2 pcs]  
Be careful not to drop.  
3308Q  
11. Oil cap  
12. Snap pin  
13. Link shaft, C [Pull out]  
14. Presser lifter link-related parts  
15. Set screw [Loosen]  
16. Button clamp lever shaft [Pull out]  
17. Work clamp lifter lever  
[KE-432B, 432C]  
Button clamp lifting lever  
[BE-438B, 438C]  
18. Retaining ring [BE-438B, 438C]  
19. Work clamp lifting rod  
[Pull downward]  
3309Q  
<BE-438B, 438C>  
20. Rubber caps [2 pcs]  
21. Screws [2 pcs]  
22. Screws [4 pcs]  
23. Presser solenoid assy  
[Disconnect the harness]  
KE-430B, 430C series  
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42  
3. DISASSEMBLY  
３-１５. Stepping foot lifter mechanism (KE-435B, 435C, 436B, 436C)  
3310Q  
1. Retaining ring  
2. Plain washer  
3. Screws [4 pcs]  
4. Air cylinder setting plate  
[Pull upward after disconnecting the air tubes]  
KE-430B, 430C series  
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43  
3. DISASSEMBLY  
３-１６. Thread wiper mechanism  
Solenoid specifications  
3311Q  
3312Q  
Work clamp lever  
lifter shaft  
1. Screw  
2. Plain washer  
3. Thread wiper  
4. Retaining ring  
5. Set screw [Loosen]  
6. Thread wiper arm assy  
[Pull downward]  
7. Set screw [Loosen]  
8. Thread wiper shaft  
9. Retaining ring  
Remove the thread wiper rod assembly from the  
work clamp lever lifter shaft, and then lift it up  
together with the thread wiper driving lever to  
remove them.  
10. Tension release lever spring  
11. Retaining ring  
12. Thread wiper rod assy  
13. Thread wiper driving lever  
KE-430B, 430C series  
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44  
3. DISASSEMBLY  
Pneumatic specifications  
3313Q  
1. Screw with washer  
2. Lifting lever  
3. Plunger pin  
4. Bolts [2 pcs]  
5. Solenoid box assy  
[Disconnect the harness]  
6. Screws [2 pcs]  
7. Thread wiper connecting rod assy  
8. Set screw [Loosen]  
9. Thread wiper arm assy [Pull downward]  
KE-430B, 430C series  
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45  
3. DISASSEMBLY  
Stepping foot specifications  
3314Q  
1. Plunger pin  
2. Bolts [2 pcs]  
3. Solenoid box assy  
[Disconnect the harness]  
4. Set screw [Loosen]  
5. Thread wiper connecting rod assy  
KE-484C  
3315Q  
1. Screw  
2. Bolts with washers [2 pcs]  
3. Bolts [2 pcs]  
4. Cylinder box  
[Disconnect the harness]  
5. Set screw [Loosen]  
6. Thread wiper connecting rod  
KE-430B, 430C series  
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46  
3. DISASSEMBLY  
３-１７. Thread nipper mechanism  
3316Q  
1. Set screw  
10. Work clamp lever lifter shaft  
2. Thread tension assy [Pull out]  
3. Tension release pin  
4. Tension release stud  
5. Shoulder screw  
11. Collar  
12. Tension release lever  
13. Screw with washer  
14. Lifting lever  
6. Shoulder screw  
15. Screw [KE-434B, 434C Pneumatic spec.]  
16. Tension release rod [KE-434B, 434C Pneumatic spec.]  
17. Presser bar lifter crank  
7. Tension release rod assy  
8. Driving lever push lever  
9. Set screw [Loosen]  
KE-430B, 430C series  
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47  
3. DISASSEMBLY  
3317Q  
Stepping foot specifications  
1. Set screw  
2. Thread tension assy [Pull out]  
3. Tension release pin  
4. Tension release pin, L  
5. Shoulder screw  
6. Shoulder screw  
7. Tension release rod assy  
8. Driving lever push lever  
9. Screw  
10. Tension release bracket  
3318Q  
KE-484C  
1. Set screw  
2. Thread tension assy [Pull out]  
3. Tension release pin  
4. Tension release pin, L  
5. Tension release cylinder assy  
6. Rubber cap  
7. Set screw [Loosen]  
8. Lever shaft  
9. Tension release pin push lever  
KE-430B, 430C series  
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48  
3. DISASSEMBLY  
３-１８. Thread take-up mechanism  
1. Screws [2 pcs]  
2. Solenoid setting plate  
3. Spring  
4. Set screws [2 pcs: Loosen]  
5. Solenoid joint  
6. Screw  
7. Spring washer  
8. Plain washer  
9. Nut  
10. Shoulder screws [2 pcs]  
11. Thread take-up lever  
12. Retaining ring  
13. Thread take-up lever crank  
14. Plain washer  
3319Q  
3320Q  
Stepping foot specifications  
KE-430B, 430C series  
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49  
3. DISASSEMBLY  
3321Q  
KE-484C  
1. Pin  
2. Screws [2 pcs]  
3. Setting plate  
4. Shoulder screws [2 pcs]  
5. Thread take-up lever  
KE-430B, 430C series  
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50  
3. DISASSEMBLY  
３-１９. Thread trimmer mechanism  
Be careful not to drop.  
Return the machine head to its normal  
position, and then remove the  
connecting rod lever assembly and the  
thread driving lever assembly.  
Be careful not to drop.  
3322Q  
1. Rubber cap  
2. Set screw [Loosen]  
3. Lever shaft  
4. Rubber cap  
Tilt the machine head.  
5. Set screw [Loosen]  
6. Retaining ring  
7. Driving lever guide shaft  
[Pull out]  
8. Cushion  
9. Thread release driving lever  
assy  
10. Washer  
11. Spring  
12. Spring  
13. Spring hook  
14. Nuts [2 pcs]  
15. Shoulder screws [2 pcs]  
16. Washers [2 pcs]  
17. Set screw [Loosen]  
18. Thread trimmer lever shaft  
19. Thread trimmer lever  
20. Connecting rod lever assy  
21. Thread driving lever assy  
3323Q  
KE-430B, 430C series  
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51  
3. DISASSEMBLY  
3324Q  
KE-484C  
Be careful not to drop.  
Return the machine head to  
its normal position, and then  
remove the thread trimmer  
rod L and the thread driving  
lever assembly.  
1. Rubber cap  
2. Set screw [Loosen]  
3. Lever shaft  
Tilt the machine head.  
4. Rubber cap  
5. Set screw [Loosen]  
6. Retaining rings [2 pcs]  
7. Driving lever guide shaft  
[Pull out]  
8. Cushion  
9. Washer  
10. Spring  
11. Spring  
12. Bolts [2 pcs]  
13. Thread trimmer cylinder  
14. Nuts [2 pcs]  
15. Shoulder screws [2 pcs]  
16. Washers [2 pcs]  
17. Set screw [Loosen]  
18. Thread trimmer lever shaft  
19. Thread trimmer lever  
20. Thread trimmer rod, L  
21. Thread driving lever assy  
3325Q  
KE-430B, 430C series  
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52  
3. DISASSEMBLY  
KE-430B, 430C series  
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53  
4. ASSEMBLY  
４. ASSEMBLY  
Assemble each part in order of the numbers.  
Apply grease to the required places when reassembling the parts and once every two years.  
４-１. Thread trimmer mechanism (1)  
3329Q  
Install the retaining ring between the thread  
release driving lever assembly and the  
washer.  
Apply grease.  
3328Q  
Place the cushion against the edge of the  
arm, set the various parts so that there is no  
gap between them as shown in the  
Apply grease.  
illustration, and then tighten the set screw as  
far as the screw stop.  
Adjust the position of the thread driving lever  
assembly while referring to “5-20. Adjusting  
the position of the thread trimming link  
mechanism”.  
Tighten the set screw on the screw flat while  
lightly pressing the lever shaft downward.  
Apply grease.  
1. Driving lever guide shaft  
2. Spring  
3. Washer  
4. Thread release driving lever assy  
5. Thread driving lever assy  
6. Cushion  
7. Retaining ring  
8. Set screw  
9. Rubber cap  
Tilt the machine head.  
10. Connecting rod lever assy  
11. Lever shaft  
12. Set screw  
13. Rubber cap  
14. Thread trimmer lever  
15. Thread trimmer lever shaft  
(with washer and retaining ring)  
16. Set screw  
Apply grease.  
17. Thread trimmer rod assy  
18. Shoulder screw  
19. Nut  
20. Washers [2 pcs]  
21. Shoulder screw  
22. Nut  
Tighten the set screw on the screw flat while lightly  
pressing the thread trimmer lever shaft upward.  
23. Spring hook  
3330Q  
24. Spring  
KE-430B, 430C series  
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54  
4. ASSEMBLY  
3332Q  
KE-484C  
Install the retaining ring between the thread  
driving lever assembly and the washer.  
Apply grease.  
3331Q  
Place the cushion against the edge of the  
arm, set the various parts so that there is no  
gap between them as shown in the  
illustration, and then tighten the set screw as  
far as the screw stop.  
Apply grease.  
Adjust the position of the thread driving lever  
assembly while referring to “5-20. Adjusting  
the position of the thread trimming link  
mechanism”.  
Tighten the set screw on the screw flat while  
lightly pressing the lever shaft downward.  
Apply grease.  
1. Driving lever guide shaft  
2. Spring  
3. Washer  
4. Thread driving lever assy  
5. Cushion  
6. Retaining rings [2 pcs]  
7. Set screw  
Tilt the machine head.  
8. Rubber cap  
9. Thread trimmer rod, L  
10. Lever shaft  
11. Set screw  
12. Rubber cap  
13. Thread trimmer lever  
14. Thread trimmer lever shaft  
Apply grease.  
(with washer and retaining ring)  
15. Set screw  
16. Thread trimmer rod assy  
17. Shoulder screw  
18. Nut  
19. Washers [2 pcs]  
20. Shoulder screw  
21. Nut  
22. Thread trimmer cylinder  
23. Bolts [2 pcs]  
24. Spring  
Tighten the set screw on the screw flat while lightly  
pressing the thread trimmer lever shaft upward.  
3333Q  
KE-430B, 430C series  
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55  
4. ASSEMBLY  
４-２. Thread nipper mechanism  
Solenoid specifications  
Apply grease.  
Apply grease.  
Driving lever  
stopper  
Install the driving lever push lever  
and the tension release lever U to  
the driving lever stopper with the  
shoulder screw.  
After installing the lifting lever,  
check that it moves smoothly.  
3334Q  
1. Presser bar lifter crank  
2. Lifting lever  
3. Screw with washer  
4. Work clamp lever lifter shaft  
5. Tension release lever  
6. Collar  
7. Tension release rod assy  
8. Shoulder screw  
9. Driving lever push lever  
10. Tension release lever, U  
11. Shoulder screw  
KE-430B, 430C series  
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56  
4. ASSEMBLY  
Pneumatic specifications  
Install the driving lever push lever  
and the tension release lever U to  
the driving lever stopper with the  
shoulder screw.  
Apply grease.  
Apply grease.  
Driving lever  
stopper  
After installing the lifting  
lever, check that it moves  
smoothly.  
Adjust the thread take-up spring height  
while referring to “1-2. Standard thread  
tension”.  
3335Q  
3336Q  
1. Presser bar lifter crank  
12. Retaining ring  
2. Tension release rod  
3. Screw  
13. Tension release rod assy  
14. Shoulder screw  
4. Lifting lever  
15. Driving lever push lever  
16. Tension release lever, U  
17. Shoulder screw  
18. Tension release stud  
19. Tension release pin  
20. Thread tension assy  
21. Set screw  
5. Screw with washer  
6. Work clamp lever lifter shaft  
7. Tension release lever  
8. Collar  
9. Retaining ring  
10. Set screw  
Tighten the set screw while lightly  
pressing the work clamp lever lifter  
shaft.  
11. Tension release lever spring  
KE-430B, 430C series  
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57  
4. ASSEMBLY  
Stepping foot specifications  
Apply grease.  
Apply grease.  
Driving lever stopper  
Install the driving  
lever push lever  
and the tension  
release lever U to  
the driving lever  
stopper with the  
shoulder screw.  
1. Tension release bracket  
2. Screw  
3. Tension release rod assy  
4. Shoulder screw  
5. Driving lever push lever  
6. Tension release lever, U  
7. Shoulder screw  
8. Tension release pin, L  
9. Tension release pin  
10. Thread tension assy  
11. Set screw  
Adjust the thread take-up spring height  
while referring to “1-2. Standard thread  
tension”.  
3337Q  
KE-484C  
1. Tension release pin push lever  
2. Lever shaft  
3. Set screw  
4. Rubber cap  
5. Tension release cylinder assy  
6. Tension release pin, L  
7. Tension release pin  
8. Thread tension assy  
9. Set screw  
Apply sealant (Threebond 1212 or similar) to the  
thread section.  
3338Q  
KE-430B, 430C series  
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58  
4. ASSEMBLY  
４-３. Thread wiper mechanism  
After installing the thread wiper, moved the forked  
part of the thread wiper driving lever and check  
that the thread wiper unit moves smoothly.  
Note:  
Solenoid specifications  
If the thread wiper unit does not move smoothly,  
error E-60 may be displayed.  
3339Q  
Adjust while referring to “5-17. Adjusting the  
thread wiper”.  
Tighten the set screw while lightly  
pressing the work clamp lever lifter  
shaft.  
1. Thread wiper rod assy  
[Insert from above]  
2. Thread wiper driving lever  
3. Thread wiper shaft (with washer and  
retaining ring)  
4. Set screw  
5. Thread wiper rod assy  
[Place onto the work clamp lever lifter  
shaft]  
6. Retaining ring  
7. Work clamp lever lifter shaft  
8. Set screw  
9. Tension release lever spring  
10. Retaining ring  
11. Thread wiper arm assy  
12. Retaining ring  
13. Set screw [Temporarily tighten]  
14. Thread wiper  
15. Plain washer  
16. Screw  
3341Q  
17. Tension release stud  
18. Tension release pin  
19. Thread tension assy  
20. Set screw  
Adjust the thread take-up spring height while  
referring to “1-2. Standard thread tension”.  
KE-430B, 430C series  
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59  
4. ASSEMBLY  
Pneumatic specifications  
When installing the sole-  
noid box assembly, pass  
the tension release rod  
through the hole.  
Adjust while referring to “5-17.  
Adjusting the thread wiper”.  
After installing the plunger pin, push  
the thread wiper connecting rod  
assembly up and check that the thread  
wiper unit moves smoothly.  
3342Q  
1. Thread wiper arm assy  
2. Set screw [Temporarily tighten]  
3. Thread wiper connecting rod assy  
4. Screws [2 pcs]  
5. Solenoid box assy  
6. Washers [2 pcs]  
7. Bolts [2 pcs]  
8. Plunger pin  
9. Lifting lever  
10. Screw with washer  
KE-430B, 430C series  
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60  
4. ASSEMBLY  
Stepping foot specifications  
3343Q  
Adjust while referring to “5-17.  
Adjusting the thread wiper”.  
1. Thread wiper connecting rod assy  
2. Set screw [Temporarily tighten]  
3. Solenoid box assy  
4. Washers [2 pcs]  
After installing the face plate while referring to “4-21. Covers”,  
install the bolts, and then push the thread wiper connecting  
rod assembly up and check that the thread wiper unit moves  
smoothly.  
5. Bolts [2 pcs]  
6. Plunger pin  
7. Bolts [2 pcs: Install to face plate]  
KE-484C  
3344Q  
1. Thread wiper connecting rod  
2. Set screw [Temporarily tighten]  
3. Cylinder box  
4. Washers [2 pcs]  
5. Bolts [2 pcs]  
6. Bolts with washers [2 pcs]  
7. Screw  
KE-430B, 430C series  
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61  
4. ASSEMBLY  
４-４. Thread take-up mechanism  
3345Q  
Attach the spring to spring  
hooks (A) and (B).  
1) Provisionally install the solenoid  
joint to the thread take-up solenoid  
with the set screws.  
2) Place the solenoid joint onto the  
thread take-up lever crank so that  
the flat surface is against the flat  
part of the thread take-up crank,  
and then install the solenoid setting  
plate to the machine head.  
Apply grease.  
3346Q  
3347Q  
1. Thread take-up lever crank  
2. Plain washer  
While pushing the solenoid joint  
in the direction of the arrow, set  
the solenoid setting plate and the  
solenoid joint so that the gap  
between them is 0.5 mm, and  
then tighten the set screws.  
* Move the solenoid joint and  
check that the thread take-up  
lever operates smoothly. If it  
does not move smoothly, it  
may damage the solenoid. If  
the movement is not smooth,  
make fine adjustments to the  
position of the solenoid setting  
plate until the thread take-up  
3. Retaining ring  
4. Thread take-up lever  
5. Shoulder screws [2 pcs]  
6. Set screw [Temporarily tighten]  
7. Spring washer  
8. Plain washer  
9. Nut  
10. Solenoid joint  
11. Set screws [2 pcs]  
12. Spring  
13. Solenoid setting plate  
14. Screws [2 pcs]  
Seen from the front  
lever operates smoothly.  
KE-430B, 430C series  
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62  
4. ASSEMBLY  
3348Q  
Stepping foot specifications  
Attach the spring to spring  
hooks (A) and (B).  
1) Provisionally install the solenoid  
joint to the thread take-up solenoid  
with the set screws.  
2) Place the solenoid joint onto the  
thread take-up lever crank so that  
the flat surface is against the flat  
part of the thread take-up crank,  
and then install the solenoid setting  
plate to the machine head.  
Apply grease.  
3346Q  
3349Q  
While pushing the solenoid joint  
in the direction of the arrow, set  
the solenoid setting plate and the  
solenoid joint so that the gap  
between them is 0.5 mm, and  
then tighten the set screws.  
* Move the solenoid joint and  
check that the thread take-up  
lever operates smoothly. If it  
does not move smoothly, it  
may damage the solenoid. If  
the movement is not smooth,  
make fine adjustments to the  
position of the solenoid setting  
plate until the thread take-up  
lever operates smoothly.  
1. Thread take-up lever crank  
2. Plain washer  
3. Retaining ring  
4. Thread take-up lever  
5. Shoulder screws [2 pcs]  
6. Set screw [Temporarily tighten]  
7. Spring washer  
8. Plain washer  
9. Nut  
10. Solenoid joint  
11. Set screws [2 pcs]  
12. Spring  
13. Solenoid setting plate  
14. Screws [2 pcs]  
Seen from above  
KE-430B, 430C series  
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63  
4. ASSEMBLY  
3350Q  
KE-484C  
1. Thread take-up lever  
2. Shoulder screws [2 pcs]  
3. Setting plate  
4. Screws [2 pcs]  
5. Pin  
6. Retaining ring  
KE-430B, 430C series  
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64  
4. ASSEMBLY  
４-５. Work clamp lifter mechanism (Solenoid specifications)  
When assembling, apply grease to the required places while referring to “4-5-1. Applying grease”.  
KE-430B, 431B, 433B, 434B  
KE-430C, 431C, 434C  
4. ASSEMBLY  
Tighten the screws so that the  
presser solenoid assembly protrudes  
by 110.0 ± 0.2 mm from the edge of  
the arm.  
3352Q  
Seen from above  
3353Q  
Lastly, move the work clamp lifer link-related parts by  
hand and check that they move smoothly.  
11. Screws [2 pcs]  
12. Screws [4 pcs]  
13. Rubber caps [2 pcs]  
14. Link shaft, D  
15. Snap pins [2 pcs]  
16. Guide  
17. Screws [2 pcs]  
18. Springs [2 pcs: Hook onto link shaft B and the grooved pins (18)]  
19. Oil cap  
20. Rubber cap  
KE-430B, 430C series  
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66  
4. ASSEMBLY  
When assembling, apply grease to the required places while referring to “4-5-1. Applying grease”.  
KE-432B, 432C  
BE-438B, 438C  
Secure link shaft A using the set  
screw so that link B (10) is centered  
in the bush.  
<BE-438B, 438C>  
1. Work clamp lifter link-related parts  
[Insert from above the arm]  
2. Link shaft, B  
3354Q  
[Place into the forked section of the thread wiper driving lever (2)]  
3. Link shaft, A [Pass through the washer and link A (3)]  
4. Snap pins [2 pcs: Attach to both ends of link shaft A]  
5. Set screws [2 pcs]  
6. Retaining ring  
7. Plain washer  
8. Rubber band  
4. ASSEMBLY  
Tighten the screws so that the  
presser solenoid assembly protrudes  
by 110.0 ± 0.2 mm from the edge of  
the arm.  
3355Q  
Seen from above  
3356Q  
Lastly, move the work clamp lifer link-related parts by  
hand and check that they move smoothly.  
16. Link shaft, D  
17. Snap pins [2 pcs]  
18. Guide  
19. Screws [2 pcs]  
20. Springs [2 pcs: Hook onto link shaft B and the grooved pins (20)]  
21. Oil cap  
22. Rubber cap  
23. Work clamp lifter lever［KE-432B, 432C］  
Button clamp lifting lever［BE-438B, 438C］  
24. Button clamp lever shaft  
25. Set screw  
KE-430B, 430C series  
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68  
4. ASSEMBLY  
４-５-１. Applying grease  
If the work clamp does not move up and down smoothly, error E-60 may be displayed.  
Check that the mechanism moves smoothly and also apply grease to all sliding parts during assembly.  
3357Q  
<KE-433B, 434B, 434C>  
<KE-432B, 432C>  
<BE-438B, 438C>  
1. Sliding portions of link shaft, C [1], link, B [2], and work clamp plate (work clamp lifting rod: KE-432B, 432C,  
BE-438B, 438C) [3]  
2. Sliding portions of link shaft, B [4], link, B [2], link, A [5] and link assy, C [6]  
3. Forked portion of the thread wiper driving lever [7]  
4. Sliding portions of link shaft, A [8] and link, A [5]  
5. Sliding portions of link shaft, D [9] and link assy, C [6]  
6. Forked portion of the plunger [10] where link assy, C [6] is fitted  
7. Outer and inner surfaces of spherical bush [11] to be attached to link assy, C [6]  
8. Shaft of work clamp plate (work clamp lifting rod: KE-432B/432C, BE-438B/438C) [3]  
KE-430B, 430C series  
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69  
4. ASSEMBLY  
４-６. Feed mechanism (1)  
KE-430B, 431B, 432B, 433B, BE-438B  
KE-430C, 431C, 432C, BE-438C  
Feed cams X and Y both have index marks. Check these when using.  
Assembly steps of the feed mechanism are the same for X and Y directions.  
3358Q  
Tighten the set screw in the  
illustration at the screw stop  
position.  
Set screw at screw stop  
3359Q  
Place coupling hub 8 onto  
Screw stop  
Check that the feed cam  
turns smoothly.  
the cam shaft so that there  
is no play in the hub, and  
then tighten the set screw  
at the screw stop position  
as shown in the illustration.  
3360Q  
1. Feed cam  
2. Ball bearings [2 pcs]  
3361Q  
3. Cam shaft (with retaining ring)  
4. Coupling hub, 8  
5. Set screws [2 pcs]  
3362Q  
Place the coupling hub  
onto the pulse motor shaft,  
and then tighten the set  
screw at the screw stop  
position so that the pulse  
motor shaft protrudes from  
the edge by 2.5 mm.  
6. Set screws [2 pcs]  
7. Feed home position dog  
8. Screw [Provisionally tighten at  
middle of slot]  
9. Coupling hub, 6.35  
Coupling hub, 8［KE-433B］  
10. Set screws [2 pcs]  
KE-430B, 430C series  
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70  
4. ASSEMBLY  
Assembly steps of the feed mechanism are the same for X and Y directions.  
3364Q  
Apply grease.  
Apply grease.  
Apply grease.  
Place the coupling spacer onto  
coupling hub 8.  
11. Coupling spacer  
12. Positioning pins [2 pcs]  
13. Feed cam bracket  
14. Screws [2 pcs]  
Place the feed cam bracket onto the positioning  
pins, and then install with the screws.  
3363Q  
3366Q  
Set the coupling hub at the angle for inserting the  
coupling spacer, and install the pulse motor to the  
machine bed.  
* Make sure that the harness faces correctly.  
15. Pulse motor assy, X  
16. Bolts [4 pcs]  
17. Pulse motor assy, Y  
18. Bolts [4 pcs]  
3365Q  
KE-430B, 430C series  
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71  
4. ASSEMBLY  
KE-434B, 435B, 436B  
KE-434C, 435C, 436C, 484C  
Feed cams X and Y both have index marks. Check these when using.  
Assembly steps of the feed mechanism are the same for X and Y directions.  
3367Q  
Align the edges of coupling  
hub 8 and the cam shaft.  
X direction  
3368Q  
Place the cam onto the cam  
shaft so that there is no play in  
the cam, and then tighten the  
set screws.  
Y direction  
3369Q  
3362Q  
Place the coupling hub 8  
1. Coupling hub, 8  
2. Set screws [2 pcs]  
3. PM bracket  
onto the pulse motor shaft,  
and then tighten the set  
screw at the screw stop  
position so that the pulse  
motor shaft protrudes from  
the edge by 2.5 mm.  
4. Ball bearing [X: 2 pcs, Y: 1 pc]  
5. Cam shaft  
6. Feed cam  
7. Set screws [2 pcs]  
8. Coupling hub, 8  
9. Set screws [2 pcs]  
KE-430B, 430C series  
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72  
4. ASSEMBLY  
1) Place the coupling spacer onto coupling hub 8.  
2) Set coupling hub 8 on the pulse motor shaft at the  
angle for inserting the coupling spacer, and install  
the pulse motor to the machine bed.  
Apply grease.  
* Make sure that the harness faces correctly.  
Apply grease.  
3370Q  
While pressing the set collar,  
tighten the set screw at the  
screw stop position.  
Apply grease.  
10. Ball bearing [Insert into the bed]  
11. Coupling spacer  
12. Pulse motor assy, X  
13. PM bracket, X  
14. Bolts [4 pcs]  
Place the feed cam bracket  
onto the positioning pins, and  
then install with the screws.  
15. Positioning pins [2 pcs]  
16. Y-feed cam bracket  
17. Screws [2 pcs]  
3371Q  
18. Ball bearing  
19. Coupling spacer  
20. Pulse motor assy, Y  
21. PM bracket, Y  
22. Bolts [4 pcs: 3 pcs for KE-484C]  
23. Set screw collar  
24. Set screws [2 pcs]  
KE-430B, 430C series  
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73  
4. ASSEMBLY  
４-７. Feed mechanism (2)  
Install home posi-  
tion sensors X and  
Y so that there is a  
gap of 0.5–0.9 mm  
between the sen-  
sors and the feed  
home position dog.  
KE-430B, 431B, 432B, 433B, BE-438B  
KE-430C, 431C, 432C, BE-438C  
Feed home  
position dog  
Push the home position  
sensor Y cable into the  
recess.  
3374Q  
Oil supply  
hole  
3373Q  
Feed home  
position dog  
Note:  
Make sure the wick does not  
touch the connecting rod lever.  
3372Q  
1) Insert the tack width feed lever shaft with the  
thrust washer and retaining ring installed into  
the Y-feed lever assembly, press down on  
the top of it so that there is no play, and then  
tighten the set screw at the screw stop  
position.  
1. X-feed lever assy [Insert onto bushing]  
2. Feed cam roller  
[Place into groove of feed cam X]  
3. Thrust washer  
* Check that the Y-feed lever assembly  
moves smoothly.  
4. Y-feed lever assy  
5. Feed cam roller  
3375Q  
2) Put the driver into the  
[Place into groove of feed cam Y]  
6. Thrust washer  
end of the Y-feed lever,  
and press the X-feed  
lever assy downward.  
7. Tack width feed lever shaft (with retaining  
ring)  
8. Set screw  
9. Set screw collar  
3) Place the set screw  
collar on the shaft of  
the X-feed lever, press  
it in the direction of the  
arrow, and tighten the  
set screws.  
10. Set screws [2 pcs]  
11. Home sensor setting plate  
12. Screw  
13. Home sensor setting plate  
14. Screw  
15. Cord holder  
16. Screw  
17. Cord holder  
18. Screw  
19. Wick [Insert into oil supply hole]  
20. Wick [Insert into oil supply hole]  
3376Q  
KE-430B, 430C series  
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74  
4. ASSEMBLY  
KE-434B, 435B, 436B  
KE-434C, 435C, 436C, 484C  
Home position  
dog, X  
Home position  
sensor X  
3379Q  
Install the X-sensor setting base so that  
there is a gap of 0.5–0.9 mm between the  
sensing surface of home position sensor X  
and the home position dog X.  
Push the home position  
sensor Y cable into the  
recess.  
3378Q  
Oil supply  
hole  
Note:  
Make sure the wick does not  
touch the connecting rod lever.  
3377Q  
1) Insert the tack width feed lever shaft with the  
thrust washer and retaining ring installed into  
the Y-feed lever assembly, press down on  
the top of it so that there is no play, and then  
tighten the set screw at the screw stop  
position.  
* Check that the Y-feed lever assembly  
moves smoothly.  
1. X-feed lever assy [Insert onto bushing]  
2. Feed cam roller  
3575Q  
2) Put the driver into the  
[Place into groove of feed cam X]  
3. Thrust washer  
end of the Y-feed lever,  
and press the X-feed  
lever assy downward.  
4. Y-feed lever assy  
5. Feed cam roller  
[Place into groove of feed cam Y]  
6. Thrust washer  
7. Tack width feed lever shaft (with retaining  
ring)  
8. Set screw  
9. Set screw collar  
10. Set screws [2 pcs]  
3) Place the set screw  
collar on the shaft of  
the X-feed lever, press  
it in the direction of the 11. X-sensor setting base  
arrow, and tighten the  
set screws.  
12. Screw  
13. Y-sensor setting plate  
14. Screw  
15. Cord clamps [3 pcs]  
16. Screws [3 pcs]  
17. Wick [Insert into oil supply hole]  
18. Wick [Insert into oil supply hole]  
3376Q  
KE-430B, 430C series  
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75  
4. ASSEMBLY  
４-８. Upper shaft mechanism  
Push the thread trimmer  
Rotation direction  
cam onto the upper shaft  
crank, align the forward set  
screw in the rotation  
direction with the screw  
stop position, and tighten  
the set screw at that  
position.  
<KE-435B, 435C>  
<KE-436B, 436C>  
3380Q  
Apply grease.  
Apply grease.  
Apply grease.  
Apply adhesive (Threebond  
1401 or similar) to the outside  
of the bearing.  
Upper shaft bush  
Place the thread take-up crank onto the upper  
shaft from the face plate end, tighten the  
screw into the hole in the upper shaft, and  
then tighten the set screw.  
Place the thread take-up crank, thrust  
washer and bobbin winder pulley  
(stepping foot connecting rod) into the  
upper shaft bush so that there is no play  
in the parts, and then tighten the set  
screw at the screw stop position.  
1. Upper shaft  
2. Thread trimmer cam  
3. Bobbin winder pulley  
<3> Stepping foot  
connecting rod  
4. Thrust washer  
5. Thread take-up crank  
3381Q  
3382Q  
Make a gap of 1.0 mm between  
the magnet of timing pulley  
assembly and the syn-  
6. Screw  
Rotation direction  
U
chronizer assembly, and then  
align the rear set screw in the  
rotation direction of timing pulley  
assembly U with the screw stop  
position and tighten the set  
screw at that position.  
3383Q  
KE-430B, 430C series  
76  
4. ASSEMBLY  
KE-484C  
Make a gap of 3 mm  
between the thread trimmer  
cam and U-timing pulley F.  
Align the ridge line at the back  
of the groove in the upper  
shaft with the edge of the  
thread trimmer cam.  
Apply adhesive (Threebond  
1401 or similar) to the outside of  
the bearing.  
3384Q  
Apply grease.  
Apply grease.  
Upper shaft  
bush  
Place the thread take-up crank onto the  
upper shaft from the face plate end,  
tighten the screw into the hole in the  
upper shaft, and then tighten the set  
screw.  
Place the thread take-up crank, thrust  
washer and bobbin winder pulley into the  
upper shaft bush so that there is no play  
in the parts, and then tighten the set  
3385Q  
KE-430B, 430C series  
77  
4. ASSEMBLY  
3386Q  
20. Setting plate packing  
21. Frame side cover  
22. Blind plate  
23. Screws [4 pcs]  
24. Belt cover support pillars [2 pcs]  
25. Synchronizer assy  
26. Screws [2 pcs]  
27. Timing pulley assy, U  
28. Set screws [2 pcs]  
3387Q  
3382Q  
Make a gap of 1.0 mm between  
the magnet of timing pulley  
assembly and the syn-  
U
chronizer assembly, and then  
align the rear set screw in the  
rotation direction of timing pulley  
assembly U with the screw stop  
KE-430B, 430C series  
78  
4. ASSEMBLY  
４-９. Stepping foot lifter mechanism (KE-435B, 435C, 436B, 436C)  
3388Q  
Install the air cylinder setting plate so that there  
is a distance of 42.8–43.3 mm between section  
A of the work clamp lifter lever and the top of  
the presser bar bush when section A is at its  
lowest point.  
Work clamp lifter lever  
Presser bar bush  
3389Q  
1. Stepping link, A  
2. Plain washer  
3. Retaining ring  
4. Air cylinder setting plate  
5. Screws [4 pcs]  
KE-430B, 430C series  
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79  
4. ASSEMBLY  
４-１０. Stepping foot mechanism (KE-435B, 435C, 436B, 436C)  
Insert the presser bar spring and the  
presser bar spring guide into the top of  
the machine head, pass them through  
the washer, and then place them onto the  
presser bar.  
3390Q  
Adjust while referring to  
“5-16. Changing the  
work clamp lift”.  
1. Stepping foot arm, R  
2. Feed lifter lever shaft  
3. Washers [2 pcs]  
4. Feed roller  
5. Nut  
Stepping foot arm, F  
7. Bush, L  
Adjust while referring to  
“5-15. Work clamp  
adjustment”.  
8. Bush, R  
9. Bolt  
10. Presser bar [Insert from above]  
11. Presser bar lifter  
12. Cushion  
3391Q  
Nut  
13. Presser bar clamp  
14. Screw  
15. Washer  
16. Presser bar spring  
17. Presser bar spring guide  
18. Presser adjusting screw  
19. Stepping link assy  
20. Screws [2 pcs]  
21. Presser foot  
Set the presser adjusting screw so that the distance  
from its top to the top of the machine head is  
approximately 32 mm, and then secure the nut.  
22. Finger guard  
23. Plain washers [2 pcs]  
24. Screw  
KE-430B, 430C series  
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80  
4. ASSEMBLY  
４-１０-１. Adjusting the lowest point of the presser foot  
Carry out the steps in “4-11. Needle bar mechanism” before making this adjustment.  
3506Q  
3507Q  
Index marks  
3508Q  
3509Q  
1. Loosen the set screw (1).  
2. Turn the machine pulley to raise the needle bar from its lowest position until reference line B (the lowest  
reference line on the needle bar) or reference line b (second reference line from the top) is aligned with the  
lower edge of the needle bar bush (2).  
3. Turn the stepping work clamp cam (3) without turning the machine pulley to set the presser bar lifter (4) to its  
lowest position, and then secure the stepping work clamp cam (3) to the upper shaft (5) with the set screw (1).  
* At this time, push the stepping work clamp cam (3) in the direction of the arrow so that there is no play  
between it and the upper shaft (5).  
4. With the presser bar lifter (4) at its lowest point, loosen the bolt (8) of stepping work clamp arm R (7) and  
adjust so that the gap between the presser bar lifter (4) and the presser bar bush (6) is 0.5–1.0 mm. (A guide  
to this is that the index mark on stepping work clamp arm F (9) should be about aligned with the index mark  
on the arm.)  
* Check that there is no forward or backward play in stepping work clamp arm F (9) at this time.  
5. With the presser bar (10) at its lowest position, secure the presser bar clamp (11) with the screw (12) so that  
the distance from the bottom edge of the presser bar and the top of the needle plate is 23 mm.  
KE-430B, 430C series  
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81  
4. ASSEMBLY  
４-１１. Needle bar mechanism  
Oil supply hole  
3392Q  
Align the set screw with  
the screw stop.  
Press  
the  
thread  
take-up support shaft  
gently while tightening  
the set screw.  
KE-430B, 430C series  
82  
4. ASSEMBLY  
４-１２. Lower shaft mechanism  
Clamp the rock gear with the stepped part  
of the rock gear shaft and the set screw  
collar so that there is no play in the rock  
gear, and then tighten the set screws.  
3396Q  
Engage the lower shaft  
gear with the rock gear.  
Apply grease.  
KE-430C series  
BE-438C  
Lower shaft bush  
Apply grease.  
Set the needle bar  
to its lowest position  
and then insert the  
lower shaft with this  
screw stop facing  
straight downward.  
KE-430B series  
BE-438B  
Clamp the lower shaft bush with the  
lower shaft gear and the set screw collar  
so that there is no play in the lower shaft  
bush, and then tighten the set screws.  
Place the driver against the  
retaining ring and provisionally  
tighten the bolt.  
3397Q  
Insert the crank rod (lower part) into the crank of the  
upper shaft, and then align the mating mark on the  
crank rod (upper part) from above and gently tighten  
the screws.  
Mating mark  
* Check that the machine pulley turns smoothly.  
Apply grease.  
1. Rock gear shaft [Insert from the rear of the machine head]  
2. Rock gear  
3. Set screw collar  
4. Set screws [2 pcs]  
5. Lower shaft assy [Insert from the rear of the machine head]  
6. Set screw collar  
7. Set screws [2 pcs]  
8. Retaining ring  
9. Driver  
3398Q  
10. Bolt [Temporarily tighten]  
11. Crank rod (Lower part) [Insert into upper shaft crank]  
12. Crank rod (Upper part) [Align the mating mark]  
13. Screws [2 pcs]  
KE-430B, 430C series  
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83  
4. ASSEMBLY  
While turning the machine pulley, move the  
rock gear to the left and right to find the  
position where it moves smoothly. Then  
without moving the rock gear, turn the rock  
gear shaft so that there is a gap of 0.05--0.12  
mm at the end of the driver, and tighten the  
set screws.  
3400Q  
* Check that the machine pulley turns  
smoothly.  
3399Q  
Place the upper shaft timing  
belt onto the upper shaft  
pulley and the motor pulley.  
Carry out the steps in “5-26.  
Adjusting the tension of the upper  
shaft timing belt” before tightening.  
3401Q  
14. Set screws [2 pcs]  
15. Wick [Pass through the rock gear shaft and make a knot]  
16. Upper shaft timing belt  
17. Motor bracket  
18. Bolts [3 pcs: Temporarily tighten]  
19. Bolt  
20. Nut  
21. Motor connector  
KE-430B, 430C series  
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84  
4. ASSEMBLY  
KE-484C  
3402Q  
3403Q  
1. Lower shaft [Insert from the rear of the  
machine head]  
2. Lower shaft timing pulley  
3. Thrust bearing  
Carry out the steps in “5-26. Adjusting  
the tension of the upper shaft timing  
belt” before tightening.  
4. Lower shaft gear spacer  
5. Wick [Pass through the lower shaft and  
make a knot]  
Place the upper shaft timing belt  
onto the upper shaft pulley and the  
motor pulley.  
6. Set screw  
7. U-timing belt, F  
[Place onto the lower shaft timing pulley]  
8. Rotary hook shaft  
[Insert from the rear of the machine head]  
9. Set screw collar  
10. Set screws [2 pcs]  
11. Lower gear  
12. Set screw  
13. Upper shaft timing belt  
14. Motor bracket  
15. Bolts [3 pcs: Temporarily tighten]  
16. Bolt  
17. Nut  
18. Motor connector  
3404Q  
KE-430B, 430C series  
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85  
4. ASSEMBLY  
４-１３. Thread trimmer mechanism (2)  
1) Place the thread connecting rod onto the  
pin of the connecting rod lever assembly,  
and then install the needle plate with flat  
screws and screws so that the needle is at  
the center of the needle hole.  
<KE-484C>  
Connecting rod lever  
Connecting rod lever  
assy  
3406Q  
3405Q  
2) Turn the machine pulley to set the needle to its  
lowest position.  
3) Install the thread trimmer solenoid with the  
screws so that the gap between the thread  
driving lever assembly and the driving lever  
stopper is 0.5 mm when the plunger of the  
thread trimmer solenoid is pushed all the way  
in.  
Driving lever  
stopper  
Plunger  
Thread driving  
lever assy  
3407Q  
1. Thread connecting rod  
2. Needle plate  
3. Flat screws [2 pcs]  
4. Screws [2 pcs]  
5. Thread trimmer solenoid  
3408Q  
6. Screws [2 pcs]  
After installing, carry out the steps in “5-19. Adjusting the movable knife”.  
KE-430B, 430C series  
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86  
4. ASSEMBLY  
４-１４. Shuttle hook mechanism  
3412Q  
1. Needle bar thread guide  
2. Needle  
3411Q  
3. Set screw  
4. Shuttle hook  
5. Shuttle race base  
6. Bobbin  
7. Bobbin case assy  
8. Felt holder  
After installing the shuttle hook, carry out the adjustments in “5-2.  
Adjusting the needle bar lift amount”, “5-3. Adjusting the driver needle  
guard” and “5-4. Adjusting the needle clearance”.  
9. Support  
[Return to original position]  
3419Q  
＜KE-430B series, BE-438B＞  
2) Press the felt and the wick gently as shown in  
the illustration.  
3447Q  
1) Place the felt support as shown in the  
illustration so as not to clamp the felt.  
Wick  
Felt  
Felt  
3420Q  
3421Q  
KE-430B, 430C series  
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87  
4. ASSEMBLY  
KE-484C  
3423Q  
Approx. 0.8mm  
Shuttle hook  
Bobbin case holder  
position bracket  
Install the hook stopper setting base so that the  
distance from the tip of the bobbin case holder  
position bracket to the needle drop surface is  
approximately 0.8 mm.  
3422Q  
3424Q  
3425Q  
Tip of the rotary hook  
1. Needle bar thread guide  
2. Needle  
3. Set screw  
4. Treble hook assy  
5. Set screws [2 pcs]  
6. Hook stopper setting base  
7. Screw  
8. Bobbin  
9. Bobbin case assy  
Set screws  
Turn the machine pulley to align the tip of the rotary hook with  
the needle center line. Then tighten the set screw to adjust the  
clearance between the needle and the tip of the rotary hook to  
0.01–0.08 mm.  
KE-430B, 430C series  
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88  
4. ASSEMBLY  
４-１５. Work clamp arm mechanism (KE-430B, 430C, 431B, 431C)  
Align with the screw stop and push down  
from above while tightening the set screw.  
Be careful not to drop these two ball  
bearings when installing the feed bracket  
assembly.  
Place the tack length feed slide block  
into the groove of the feed bracket  
assembly, and then use the screws to  
install it together with the feed bracket  
guide plate.  
Tack length feed  
slide block  
3426Q  
Be careful not to drop these three  
ball bearings when installing the  
work clamp arm assembly.  
Secure the work clamp arm support shaft with the set screw so  
that the bottom of the work clamp arm support plate and the ball  
bearings touch when the work clamp is raised.  
Refer to “4-20. Work clamp  
arm mechanism (Applying  
grease)”  
1. Feed bracket assy  
2. Feed bracket guide plate  
3. Screws [8 pcs]  
4. Rod end  
5. Tack width feed shaft  
6. Set screw  
7. Rubber cap  
8. Feed plate  
9. Screws [2 pcs]  
10. Work clamp felt  
11. Work clamp arm assy  
12. Washers [2 pcs]  
13. Bolts [2 pcs]  
3427Q  
14. Work clamp arm support shaft  
Carry out the adjustment in “5-24. Adjusting the  
home position” before installing the feed plate.  
15. Set screw  
After installing, carry out test feeding and check that the needle hole is inside the work clamp and the  
feed plate frame. If the needle hole is not inside the frame, adjust the position of the work clamp arm  
assembly and feed plate.  
KE-430B, 430C series  
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89  
4. ASSEMBLY  
４-１６. Work clamp arm mechanism (KE-432B, 432C)  
Align with the screw stop and push down  
from above while tightening the set screw.  
Be careful not to drop these two ball  
bearings when installing the feed bracket  
assembly.  
Place the tack length feed slide  
block into the groove of the feed  
bracket assembly, and then use  
the screws to install it together  
with the feed bracket guide plate.  
Tack length feed  
slide block  
3426Q  
Refer to “4-20. Work clamp arm  
mechanism (Applying grease)”  
First place onto A, then insert into B  
and place onto C.  
1. Feed bracket assy  
2. Feed bracket guide plate  
3. Screws [8 pcs]  
4. Rod end  
5. Tack width feed shaft  
6. Set screw  
7. Rubber cap  
8. Feed plate  
9. Screws [2 pcs]  
10. Work clamp felt  
11. Button clamp holder  
support  
12. Plain washers [2 pcs]  
13. Bolts [2 pcs]  
14. Work clamp arm assy  
15. Button clamp holder shaft  
16. Set screws [2 pcs]  
17. Nuts [2 pcs]  
Adjusting screw  
Compression spring  
18. Work clamp carrier rod assy  
19. Washer  
Carry out the adjustment in “5-24. Adjusting the home  
position” before installing the feed plate.  
3428Q  
20. Bolt  
After installing, carry out test feeding and check that the needle hole is inside the work clamp and the  
feed plate frame. If the needle hole is not inside the frame, adjust the position of the button clamp holder  
support and feed plate.  
KE-430B, 430C series  
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90  
4. ASSEMBLY  
４-１７. Work clamp arm mechanism (KE-433B)  
3429Q  
Install parts 1 to 6, clamp them using  
parts 7 and 8 so there is no play in them,  
and tighten the set screw 9.  
Note:  
Install so that the two ball bearings of  
the feed bracket guide shaft assembly  
do not fit into the holes in the feed  
bracket guide plate.  
Be careful not to drop these three  
ball bearings when installing the  
work clamp arm assembly.  
1. Feed bracket guide plate  
2. X feed cover  
3. Y feed cover  
4. Feed bracket assy  
5. Spacers [2 pcs]  
6. Retainer assys [2 pcs]  
7. Feed bracket guide shaft assy  
8. Tack length regulator block  
9. Set screw  
Secure the work clamp  
arm support shaft with the  
set screw so that the  
bottom of the work clamp  
arm support plate and the  
ball bearings touch when  
the work clamp is raised.  
Refer to “4-20. Work clamp arm  
mechanism (Applying grease)”  
10. Cover support stand  
11. Screw  
12. Feed bracket cover  
13. Screws [8 pcs]  
14. Tack width feed shaft  
15. Set screw  
16. Rubber cap  
17. Feed plate  
18. Plain washers [2 pcs]  
19. Bolts [2 pcs]  
20. Work clamp felt  
21. Work clamp arm assy  
22. Washers [2 pcs]  
23. Bolts [2 pcs]  
3430Q  
24. Work clamp arm support shaft  
25. Set screw  
Carry out the adjustment in “5-24. Adjusting the home  
position” before installing the feed plate.  
After installing, carry out test feeding and check that the needle hole is inside the work clamp and the  
feed plate frame. If the needle hole is not inside the frame, adjust the position of the work clamp arm  
assembly and feed plate.  
KE-430B, 430C series  
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91  
4. ASSEMBLY  
４-１８. Work clamp arm mechanism (KE-434B, 434C, 435B, 435C, 436B, 436C, 484C)  
Align with the screw stop and push down gently  
from above while tightening the set screw.  
Y-feed lever  
3431Q  
1) Turn the Y-feed lever forward as far as it will go.  
4. ASSEMBLY  
Refer to “4-20. Work clamp arm  
mechanism (Applying grease)”  
3433Q  
Work clamp arm assembly  
installation position  
(A) When using solenoid-type  
work clamp S  
Refer to “4-20. Work clamp arm  
mechanism (Applying grease)”  
Pneumatic-type  
(B) When using solenoid-type  
work clamp L  
3435Q  
11. Feed bracket cover  
12. Feed plate  
13. Plain washers [2 pcs]  
14. Bolts [2 pcs]  
15. Work clamp arm assy  
16. Washers [2 pcs]  
3434Q  
17. Bolts [2 pcs]  
18. Cylinder support [Pneumatic spec. only]  
19. Bolts [2 pcs: Pneumatic spec. only]  
Carry out the adjustment in “5-24. Adjusting the  
home position” before installing the feed plate.  
After installing, carry out test feeding and check that the needle hole is inside the work clamp and the  
feed plate frame. If the needle hole is not inside the frame, adjust the position of the work clamp arm  
assembly and feed plate.  
KE-430B, 430C series  
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93  

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