Husqvarna Trimmer SMC 50 E User Manual

Operator´s manual  
SMC 50  
SMC 50 E SMC 50 EF  
Please read these instructions carefully and make sure  
you understand them before using the one-man sawmill.  
English  
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INTRODUCTION  
Introduction  
Symbols and warning signs shown on the next page  
can be found in this operator’s manual and on the one-  
man sawmill. If a decal on the sawmill has been  
damaged or is worn, a new warning decal must be  
applied as soon as possible in order to ensure the  
greatest possible safety when using the sawmill.  
This operator’s manual describes in detail how the  
one-man sawmill is used and maintained and how  
servicing is to be carried out. It also describes the  
measures to be taken for maximum safety and how the  
safety features are designed and function, as well as  
how they are inspected, maintained, and repaired if  
necessary.  
The one-man sawmill shall only be used to cut boards  
and planks from logs.  
NOTE! The section dealing with safety must be  
read and understood by all those who install, use,  
or repair the sawmill.  
The one-man sawmill should be used outdoors and  
not in enclosed spaces.  
The operator’s manual comprises installation, usage,  
and the different maintenance procedures that can be  
performed by the operator. More comprehensive  
servicing or troubleshooting should be performed by  
the dealer’s service personnel.  
The operator’s manual describes all the requisite  
safety features and should be read and understood by  
the user before the sawmill is assembled.  
English – 3  
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KEY TO SYMBOLS  
Symbols  
Warning Signs  
The symbols below are used in this operator’s manual.  
The decal with the symbols below is found on the one-  
man sawmill.  
Eye protection and hearing  
protection should be used.  
Eye protection and hearing  
protection should be used.  
Protective gloves should be worn.  
Boots or work shoes with  
steel toecaps and non-slip soles  
should  
be worn.  
Boots or work shoes with steel  
toecaps and non-slip soles  
should be worn.  
Eye protection should be used.  
Read this manual carefully and  
make sure you understand it  
before attempting to use the one-  
man sawmill.  
Protective gloves should be  
worn.  
Switch off the engine by moving  
the stop switch to the STOP  
position before carrying out any  
checks or maintenance.  
Exercise caution.  
4– English  
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SAFETY REGULATIONS  
Safety Regulations  
WARNING!  
A one-man sawmill can be a  
WARNING!  
Always ensure good ventilation.  
Exhaust fumes and sawdust can  
cause injury or allergies.  
!
dangerous tool that can cause  
serious or fatal injury if used  
incorrectly or carelessly. It is very  
important that the person using the  
one-man bandsaw reads and  
understands the content of this  
manual.  
!
Personal Protective Equipment  
The person or persons using the one-man sawmill or  
remaining in its close proximity must be equipped with  
the personal equipment as set out below:  
1. Hearing protection.  
2. Eye protection.  
3. Approved protective gloves.  
4. Boots or work shoes with steel toecaps and non-  
slip soles.  
5. First aid kit.  
English – 5  
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SAFETY REGULATIONS  
The One-man Sawmill Safety  
Equipment  
Safety During Use  
The safety regulations that apply while using the one-  
man sawmill are documented in their respective areas  
under the section Use on page 25-28.  
WARNING!  
The one-man sawmill must never  
be used if any of the safety  
devices or guards is damaged or  
does not work.  
!
The operator should observe the following safety  
measures before and during use:  
1. Check that all safety devices and guards are fitted  
and undamaged.  
There are a number of safety devices and guards in  
order to prevent accidents when using the sawmill.  
These are described in the sawmill’s general  
description. See page 15.  
2. Check that no fuel has been spilt on the outside of  
the tank or on the ground.  
3. Ensure that there are no people or animals within  
the one-man sawmill’s risk zone.  
The safety devices and guards also require regular  
inspection and maintenance. Measures and intervals  
are documented in the section Maintenance. See  
page 29-32.  
4. The stopping and locking devices required to  
fasten the log shall be used in the intended  
manner. See pages 25-28.  
5. Adjust the scale and check that the bandsaw  
moves freely over the short and long log supports  
by the red markings on the scale. See page 19,  
FIG. 34.  
Fuel Safety  
WARNING!  
The fuel used in the one-man  
sawmill has the following  
hazardous properties:  
!
1. The fluid, its vapour, and its  
exhaust fumes are poisonous.  
2. Can cause skin irritation.  
3. Is highly inflammable.  
Special safety regulations apply to the fuel used with  
the one-man sawmill. These are documented in the  
section Fuel Handling on page 21.  
FIG. 1  
5 m  
Risk Zone  
The risk zone is evident from the picture to the right.  
No unauthorised persons may be present in the risk  
zone.  
The risk zone should also be kept free of foreign  
objects and the ground within the risk zone should be  
flat so that the operator avoids stumbling.  
Personnel  
The following apply to personnel using the one-man  
sawmill:  
1. Shall have read and understood the content of this  
operator’s manual.  
2. Must not be under the influence of alcohol or  
medication, nor suffering from tiredness.  
3. Good lighting is required when using the sawmill  
outside daylight hours.  
3 m  
3 m  
4. Shall not be a minor.  
5. Earthed circuit breaker recommended.  
3 m  
6– English  
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DESCRIPTION  
One-man sawmill chain saw engine  
The one-man sawmill consists of two main parts:  
• The carriage with engine and saw  
• Rails  
1. Rail sections (2)  
2. Log lifter  
3. Timber supports (short and long)  
4. Log bolster  
13. Underlying support wheel  
14. Scale pointer with scale  
15. Indicator  
16. Handlebars  
5. Log lock  
17. Throttle  
6. Adjustment nut  
7. Saw carriage  
8. Protective loop  
9. Vibration damping plate  
10. Skid rail  
18. Throttle lock  
19. Throttle cable  
20. Support foot  
21. Scraper  
22. Rail stop  
11. Idler adjustment screw for saw height  
12. Height setting lock  
23. Machine plate  
24. Bar and chain  
Tools and operator’s manual  
A. Open ended spanner 13-15 mm  
B. Open ended spanner 17-19 mm  
C. Socket spanner  
D. Combination spanner 13-19  
E. Combination spanner  
F. Allen key 6 mm  
G. Allen key 4 mm  
H. This operator’s manual  
English – 7  
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DESCRIPTION  
One-man Sawmill Electric Motor  
The one-man sawmill consists of two main parts:  
• The carriage with motor and saw  
• Rails  
1. Rail sections (2)  
2. Log lifter  
3. Timber supports (short and long)  
4. Log bolster  
5. Log lock  
6. Adjustment nut  
16. Handlebars  
20. Support foot  
21. Scraper  
22. Rail stop  
23. Machine plate  
24. Bar and chain  
25. Oil tank  
7. Saw carriage  
8. Protective loop  
26. Motor console  
27. Connector with phase inverter  
28. Electric motor  
29. Start button electric motor  
32. Stop button electric motor  
37. Safety switch  
10. Skid rail  
11. Idler adjustment screw for saw height  
12. Height setting lock  
13. Underlying support wheel  
14. Scale pointer with scale  
15. Indicator  
Tools and operator’s manual  
A. Open ended spanner 13-15 mm  
B. Open ended spanner 17-19 mm  
C. Socket spanner  
D. Combination spanner 13-19  
E. Combination spanner  
F. Allen key 6 mm  
G. Allen key 4 mm  
H. This operator’s manual  
8 – English  
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DESCRIPTION  
One-man sawmill with electric motor and feed  
The one-man sawmill consists of three main parts:  
- The carriage with motor and chain  
- Feed unit  
- Rails  
21. Scraper  
22. Rail stop  
1. Rail sections (2)  
2. Log lifter  
23. Machine plate  
25. Oil tank  
3. Timber supports (short and long)  
4. Log bolster  
26. Motor console  
5. Log lock  
27. Connector with phase inverter  
28. Electric motor  
6. Adjustment nut  
7. Saw carriage  
29. Start button electric motor  
30. Start button feed  
31. Control for variable feed  
32. Stop button electric motor  
33. Feed wheel with cable  
34. Cable adjustment  
35. Feed motor  
8. Protective loop  
10. Skid rail  
11. Idler adjustment screw for saw height  
12. Height setting lock  
13. Underlying support wheel  
14. Scale pointer with scale  
15. Indicator  
36. Electric cable with connector  
37. Safety switch  
16. Handlebars  
20. Support foot  
Tools and operator’s manual  
A. Open ended spanner 13-15 mm  
B. Open ended spanner 17-19 mm  
C. Socket spanner  
D. Combination spanner 13-19  
E. Combination spanner  
F. Allen key 6 mm  
G. Allen key 4 mm  
H. This operator’s manual  
English – 9  
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DESCRIPTION  
Saw carriage (FIG. 2)  
FIG. 2  
The saw carriage comes in the same version for all  
one-man sawmill models and comprises the following  
parts:  
• Steel structure with runner wheels against the rails  
and guides for the saw’s up and down movement.  
• One screw for the saw’s vertical adjustment. The  
screw is operated by a crank and is equipped with  
an index plate.  
• Handle with operating mechanism.  
• Vibration damping plate (One-man sawmill with  
chain saw engine)  
• Motor console (One-man sawmill with electric motor)  
• Bar and chain  
• Chain oil tank for the chain (One-man sawmill with  
electric motor)  
A suitable chain saw is also installed on the saw  
carriage.  
Frame (FIG. 3) and (FIG. 4)  
FIG. 3  
The carriage frame consists of welded square tubing  
with requisite corner reinforcement for stability during  
cutting. The console is installed in the saw carriage for  
the saw unit’s up and down movement. On the under-  
side of the frame are four runners, fitted with bearings,  
with slots for securing and smooth running along the  
rails. The carriage is equipped with two adjustable  
bearings, which run against the underside of the rails,  
to prevent it from lifting.  
Height Setting (FIG. 4)  
FIG. 4  
The saw unit is secured vertically by a screw. A crank  
(11) is fitted on the top section of the screw, and is  
used to set the exact dimension of the timber  
thickness. One turn of the crank moves the bandsaw  
blade 5 mm. The height of the bar above the rails’  
cross members is read on the scale (14). There are  
two red markings on the scale that indicate the lowest  
saw height with the timber support raised, one red line  
for the long timber support and one red line for the  
short one. CAUTION! Sawing under the respective  
markings will damage the chain and there will be a risk  
of sparking.  
14  
11  
17  
18  
Handlebars (FIG. 4)  
16  
The saw carriage is operated and moved forwards  
using handlebars (16), which are located on the left-  
hand side of the saw carriage. The handlebars are  
equipped with a throttle for start lock (17, 18). On the  
one-man sawmill with feed, the handlebars are used  
for feeding when you want to approach the end of the  
log to calculate the saw yield.  
10 – English  
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DESCRIPTION  
Chain oil tank (FIG. 5)  
FIG. 5  
Chain sawmill with electric motor  
On the saw carriage for sawmills that are fitted with an  
electric motor, the oil tank (25) for chain oil is located  
on the electric motor. The chain oil is pumped via a  
hose by a chain oil pump that is installed under the  
clutch drum in the console. The pump supplies the bar  
with chain oil when the sawmill is running.  
25  
Motor console for electric motor  
(FIG. 6)  
FIG. 6  
The chain sawmill with electric motor is fitted with a  
console in which the motor, transmission and bar are  
installed. The console is installed in the saw carriage  
and is adjusted vertically with the idler adjustment  
screw. The console runs on skid rails with adjustable  
plastic guides.  
Vibration damping plate for the  
chain saw (FIG. 7)  
FIG. 7  
The chain saw is secured in a vibration-free plate (9)  
that is screwed into the saddle. The vibration-free plate  
is supplied with an adjustment option, where the  
position of the saw in relation to the rails can be  
adjusted. The saddle is installed in the saw carriage  
and is adjusted vertically with an idler adjustment  
screw.  
A
9
Bar and chain (FIG. 7)  
The bar and chain (A) are installed on the engine  
console (electric sawmill) and installed on the chain  
saw in accordance with the chain saw’s operator’s  
manual. The bar has the same mounting on both the  
sawmill with the chain saw and the electric saw mill.  
Feed unit for chain sawmill with  
electric motor (FIG. 8)  
FIG. 8  
The feed unit (A) is installed in the left-hand end of the  
rail profile and is connected to the saw carriage by a  
cable. The chain is started from the feed unit and the  
feeding speed can be controlled variably.  
A
English – 11  
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DESCRIPTION  
Motors  
FIG. 9  
17  
Chain saw engine (FIG. 9)  
The one-man sawmill is powered by a standard chain  
saw ranging from 65 cm3 up to 95 cm3. The chain saw  
is mounted on a vibration-free plate (9), where it is  
screwed into the bar mounting with two spacers and  
screws (15). The saw’s speed is controlled from the  
throttle (17) on the handlebar (18), which is connected  
by a cable to the chain saw. The cable is secured in a  
special mounting that is screwed onto the saw. For a  
further description of the chain saw, see the enclosed  
operator’s manual for the chain saw.  
18  
9
Electric Motor (FIG. 10)  
FIG. 10  
The one-man saw is powered by a 3-phase motor (21).  
The motor is started and stopped with the start and  
safety switches on the distribution box, which has built-  
in motor protection. There is also a connection for an  
electric cable with single phase inversion.  
24  
Electric motor feed unit (FIG. 11)  
The feed unit is powered by a 42 volt DC motor (35).  
The speed of the motor is controlled variably from the  
control box.  
FIG. 11  
35  
12 – English  
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DESCRIPTION  
Rails  
The rails consist of two sections (standard delivery).  
Each section is 3 m. The sections are aligned and  
bolted together into a track for the carriage. The rail  
sections are bolted together and fastened using M12  
bolts with nuts, which assures stability and ensures  
that the carriage runs straight.  
The rails’ transverse log bolsters are equipped with:  
• Folding stop for the log  
• Log lock  
• Height adjustment of one end of the log  
The rails are also fitted with stops at both ends for the  
saw carriage, as well as adjustable jointing plates on  
the section joints.  
The rails also have a number of transverse log bol-  
sters, designed to provide a stable support for the log  
to be cut or the planks to be trimmed.  
FIG. 12  
FIG. 13  
Log Bolsters (A)  
Folding Stops (C)  
The rails have a number of transverse log bolsters that  
provide a stable support for the log to be cut or the  
planks to be trimmed.  
There are a number of folding stops for the log on the  
left-hand side of the rails. To increase usability, the  
stops come in two different lengths.  
Height Adjustment (B)  
Log Locks (D)  
The log locks consist of a cam with handle, housed in  
a moveable unit. The locks are used to secure the log  
against the folding stops.  
The height adjustment is designed to raise the small  
end of the log, so that the core becomes horizontal.  
English – 13  
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DESCRIPTION  
Rail Stop  
FIG. 14  
Rail stops are fitted at the ends of the rails (A). The  
stop is mounted using a bolt from the side of the rail.  
Adjustable Support Feet  
Adjustable support feet are mounted by each log  
bolster. You can fine tune the rails’ adjustment using  
the support feet.  
FIG. 15  
Rail Guard  
FIG. 16  
The saw carriage is equipped with four rail guards  
that run above the rails. The rail guards have the  
tasks of keeping the rails clean and preventing crush  
injuries between the runner wheels and rails.  
14 – English  
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DESCRIPTION  
Safety Devices  
The one-man sawmill is fitted with a number of safety  
devices, which are described under the headings  
below.  
FIG. 17  
WARNING!  
The one-man sawmillmust not be  
started if any of the safety devices  
8
!
have been removed, are defective, or  
are not working.  
Saw chain guard (FIG. 17)  
A protective loop (8) is installed as a guard over the  
saw chain.  
Chain brake (FIG. 17)  
The chain is started with a centrifugal clutch on both  
the sawmill with the chain saw engine and the electric  
sawmill. As soon as the engine speed drops, the chain  
is disengaged and then stops.  
Starter electric motor (FIG. 18)  
FIG. 18  
The electrically powered sawmill is equipped with a  
main switch (A), connector with phase inverter (27) as  
well as a start button (29) with safety switch (37) and  
stop button (32). The sawmill stops as soon as the  
safety switch is released. The starter, which is located  
on the handlebar (16), is equipped with a 0-volt trigger.  
This means that the sawmill’s electric motor must be  
restarted after a power outage.  
29  
32  
37  
A
27  
16  
Stop button chain saw engine  
(FIG. 19)  
FIG. 19  
On the chain saw engine there is a stop button on the  
engine body, see the chain saw operator’s manual.  
Starter electric motor with feed  
(FIG. 20)  
FIG. 20  
The starter is equipped with a safety switch (37) and  
start button (29), with which the saw motor is started.  
The safety switch must be activated throughout the  
entire cutting process, as the saw motor and hence the  
feed stop as soon as the safety switch is released. The  
feed starts when the start button (30) is activated and  
controlled variably with the control (31). The saw  
carriage can be returned by activating the start button,  
as soon as the saw motor has stopped. The feed then  
changes direction and returns. The speed is controlled  
variably with the control (31). The starter is equipped  
with a phase inverter (27) in the connector.  
30  
31  
29  
37  
27  
English – 15  
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INSTALLATION  
Unpacking  
Parts that are included are pictured in the Description  
section on page 7-9 . Component parts are packed  
according to the following:  
Unpack the one-man sawmill and check that the  
delivery is complete. Check that no parts are  
damaged. If any part is damaged, report this to the  
carriers.  
1. Rail sections (quantity according to the order)  
2. Saw carriage  
3. Feed unit  
The operator’s manual includes detailed instructions  
about safety, assembly, use, and maintenance of the  
one-man sawmill.  
4. 4 rail guards  
5. Bar and chain  
6. Assembly components  
Installation  
Continue as follows:  
1.Assemble the adjustable feet under each of the 16  
log bolsters. Adjust, by using the adjustable feet and  
the rails’ bedding, until the rail sections form a  
straight line and the rails sit firmly on each wooden  
beam. See FIG. 21.  
Installation Site  
The one-man sawmill with petrol engine should be  
installed outdoors.  
There should be space to lay out timber and sawn  
wood.  
2.Loosely bolt together the rail sections using the  
supplied jointing plates and M12 nuts and bolts. See  
FIG. 23.  
3.Finely adjust the rails and tighten all the bolts.  
Tighten the bolted joints to 5-10 Nm. See FIG. 21.  
Rails  
4.Fit the stops to the ends of the rails (see page 14,  
FIG. 11), as well as the folding stops, log lift, and log  
lock (see page 13, FIG. 10).  
Place the rail sections after each other on the  
transverse wooden beams, which are placed under  
each log bolster, and an extra transverse wooden  
beam by the joints between the sections.  
5.Load the rails above each wooden beam and check  
that the rails do not move.  
FIG. 21  
Aligning the rails  
FIG. 23  
FIG. 22  
Adjustable foot  
Bolted joint  
16 –English  
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INSTALLATION  
Setting up the Saw Carriage (FIG. 24)  
FIG. 24  
WARNING!  
The saw carriage is heavy. Two  
persons are required when setting  
up. Always wear boots with steel  
toecaps.  
B
!
A
CAUTION!  
Do not drop the saw carriage onto the rails or  
any other hard surface too heavily. This will  
result in permanent damage to the saw  
carriage’s bearings.  
Do not place the saw carriage directly on the  
ground so that dirt and unnecessary con-  
tamination can come into contact with the  
saw carriage’s wheels.  
FIG. 25  
Place the saw carriage on the rails and make  
adjustments as follows:  
1.Two persons take hold of the saw carriage, one on  
each side. Hold the saw carriage as follows: The  
right-hand side: under the engine console (A) on  
the electric sawmill or under the saddle on the chain  
saw sawmill. The left-hand side: in the sawmill  
chassis (B).  
2.Lift and place the saw carriage so that the grooves  
in its wheels are positioned above their respective  
rails (FIG. 25). Carefully lower the saw carriage onto  
the rails.  
Saw Carriage Adjustment (FIG. 26)  
The saw carriage is aligned on the rails by fitting its  
lower guide wheels and rail guards. The lower guide  
bearings have the task of preventing the saw carriage  
from tilting and the rail guards keep the rails and the  
saw carriage’s wheels free from dirt and the like.  
Assembled on the saw carriage are:  
FIG. 26  
• Two lower guide wheels  
• Four rail guards.  
Assembly is done as follows:  
1.Fix the guide wheel’s bracket in place with a screw.  
Place a 0.2 mm feeler gauge between the bearing  
and rail (FIG. 26).  
2.Press the bearing against the rail and tighten the  
bearing bracket screw. Tightening torque: 40-50  
Nm. Now remove the feeler gauge.  
FIG. 27  
3.Carry out 1-2 above for the remaining guide wheels.  
4.Position the four rail guards (FIG. 27) above the  
wheel.  
English – 17  
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INSTALLATION  
One-man sawmill with chain saw  
FIG. 28  
engine  
Install chain saw and bar (FIG. 28)  
1.Install the chain and bar on the chain saw, see the  
chain saw operator’s manual. Replace the saw’s bar  
nuts with two extended bar nuts (A).  
A
B
2.Screw in the Allen screws (B) a little way into the bar  
nuts.  
3.Screw the nuts onto the three bolts on the underside  
of the vibration damping plate (9).  
9
4.Install the vibration damping plate in the saddle on  
the saw carriage using a nut on each side of the  
hole. Adjust the position of the saw with the nuts.  
5.Lift the saw into position on the vibration damping  
plate and align the Allen screws in the ‘keyholes’ on  
the vibration damping plate (9).  
6.Tighten the Allen screws with an Allen key.  
One-man sawmill with electric  
motor  
Install the bar (FIG. 29)  
Install the chain and bar on the motor unit as follows:  
FIG. 29  
A
1.Secure the chain around the motor unit’s sprocket.  
Ensure that its teeth correspond with the direction of  
rotation according to the arrow (A).  
2.Position the bar and thread the chain around the  
bar. CAUTION! Ensure that the tip of the tension  
screw’s nut (B) fits into the hole on the bar.  
B
C
3.Install the guide (C) and loosely tighten the two bar  
bolts (just so that there is no play on the bar).  
4.Adjust the chain using the tension screw. Tighten to  
a torque of 30 Nm.  
D
5.The direction of rotation is changed using the phase  
inverter (D).  
One-man sawmill with electric  
FIG. 30  
motor and feed (FIG. 30)  
Install the control unit and electric motor as follows.  
1.Install the feed unit at the end of the rails.  
2.Insert the cable with the connecting nipple through  
the profile by the feed unit.  
3.Route the cable around the adjuster pulley (A) at the  
other end and route it back to the saw carriage.  
4.Wind the cable once around the wheel (FIG. 31 E)  
on the feed motor.  
C
FIG. 31  
5.Connect the cable in the connector (FIG. 31 B).  
CAUTION! The spring must be facing the feed unit.  
6.Connect the connector in the saw carriage (FIG. 31  
C).  
B
7.Tension the cable and lock the adjuster pulley (FIG.  
31 D) so that the spring stretches approximately 5  
mm.  
E
D
A
18 –English  
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INSTALLATION  
One-man sawmill with chain saw  
engine  
FIG. 32  
Install the handlebar (FIG. 32)  
The handlebar with the throttle is installed on the saw  
carriage using two bolts.  
Install throttle and cable (FIG. 33)  
The throttle and lever are installed in the chain saw’s  
handle. The loop (A) is positioned inside the handle.  
The washers (B and C) are screwed into position.  
When the throttle’s mounting is installed, the throttle  
lock on the saw is pressed in. Connect the cable from  
the handlebar into the lever and adjust it using the  
screw nipple. When the throttle on the handlebar is not  
activated, the play between the throttle on the saw and  
the lever (D) should be approximately 1 mm.  
FIG. 33  
A
B
C
D
1 mm  
Install scale pointer and scale  
FIG. 34  
(FIG. 34)  
Install the scale pointer and scale as follows:  
1.The scale pointer is installed using two self-tapping  
screws (A).  
E
C
A
2.Insert the scale through the scale pointer from  
above. The scale’s greatest value should point  
downwards. Screw the scale into the saw carriage  
(B).  
3.Measure the distance between the lower part of the  
saw chain (D) and the log bolster. Set the scale  
pointer so that the scale has the same value.  
B
4.Bolt on the scale pointer.  
5.Check that the saw chain moves freely over the long  
(E) and short (C) log supports when the red mark  
can be read on the scale.  
D
English – 19  
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INSTALLATION  
One-man sawmill with chain saw  
engine  
FIG. 35  
Adjusting the bar  
The bar must be adjusted so that it is parallel with the  
log bolsters and with the rails. This is done using the  
nuts under the vibration damping plate. Set the bar so  
that it is parallel with the rails by positioning a straight  
ruler measuring approximately 1 m across the bar.  
Then place a board between the log bolsters on the  
rails. Adjust with the two inner adjustment nuts, so that  
the distance between the board and the ruler is the  
same. Using the nuts under the vibration damping  
plate, the ruler (FIG. 35) can be adjusted so that it is  
parallel (has the same dimensions at both ends).  
Then adjust the bar so that it is parallel with the log  
bolsters (FIG. 36). Adjust using the outer adjustment  
nut until the distance between the log bolsters and the  
bar is the same along the entire length of the bar. Then  
tighten the locking nuts. Check the setting once more.  
To achieve the optimum result, it is very important to  
ensure that these settings are performed accurately.  
This prevents the timber being at an angle or the bar  
catching.  
FIG. 36  
One-man sawmill with electric  
motor  
FIG. 37  
Checking the bar  
On a one-man sawmill with electric motor, the  
parallelism of the bar is set in the factory. To ensure  
that this setting has not been altered during transport  
and installation, the setting (FIG. 37) should be  
checked when the sawmill has been installed in  
accordance with the instructions for the one-man  
sawmill with chain saw engine. Adjust the bar using  
the adjustment screws on the console’s plastic guides.  
20 –English  
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FUEL HANDLING  
Fuel chain saw engine  
Fuel Safety  
WARNING!  
The fuel used in the one-man  
sawmill has the following  
hazardous properties:  
!
1. The fluid, its vapour, and its  
exhaust fumes are poisonous.  
2. Can cause skin irritation.  
3. Is highly inflammable.  
The following are absolutely forbidden when fuelling:  
Smoking.  
To have flames or hot objects in close  
proximity.  
To have the engine running.  
Petrol  
CAUTION! The one-man sawmill, which is equipped  
with a two-stroke engine, must always be run on a  
mixture of petrol and two-stroke engine oil. It is  
important to accurately measure the amount of oil to  
be mixed to ensure that the correct mixture is  
obtained. When mixing small amounts of fuel, even  
small inaccuracies can drastically affect the ratio of the  
mixture.  
Always provide for good ventilation  
when handling fuel.  
!
Use good quality unleaded or leaded petrol. The  
lowest octane recommended is 90. If you run the  
engine on a lower octane grade than 90 so-called,  
knocking can occur. This gives rise to a high engine  
temperature, which can result in serious engine  
damage.  
English – 21  
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FUEL HANDLING  
Two-stroke oil  
• For the best results use HUSQVARNA two-stroke  
oil, which is especially developed for chain saws.  
Mixing ratio 1:50 (2%).  
• If HUSQVARNA two-stroke oil is not available, you  
may use another two-stroke oil of good quality that  
is intended for air cooled engines. Contact your  
dealer when selecting an oil. Mixing ratio 1:33 (3%)-  
1:25 (4%).  
Gasolin  
Benzin  
Essence  
Gasolina  
Lit.  
Oil • Öl  
Huile • Aceite  
Lit.  
2%(1:50) 3%(1:33) 4%(1:25)  
0,10  
0,20  
0,30  
0,40  
0,15  
0,30  
0,45  
0,60  
0,20  
0,40  
0,60  
0,80  
5
10  
15  
20  
• Never use two-stroke oil intended for water cooled  
outboard motors, so-called, outboard oil.  
US  
gallon  
US  
fl. oz.  
• Never use oil intended for four-stroke engines.  
2%(1:50) 3%(1:33) 4%(1:25)  
2 1/2  
6 1/2  
12 7/8  
3 3/4  
9 3/4  
19 1/4  
5 1/8  
12 7/8  
25 3/4  
1
2 1/2  
5
Mixing  
• Always mix the petrol and oil in a clean container  
intended for fuel.  
• Always start by filling half the amount of the petrol to  
be used. Then add the entire amount of oil. Mix  
(shake) the fuel mixture. Add the remaining amount  
of petrol.  
• Mix (shake) the fuel mixture thoroughly before filling  
the saw’s fuel tank.  
• Do not mix more than max. one month’s supply of  
fuel.  
• If the saw is not used for some time the fuel tank  
should be emptied and cleaned.  
Fuelling  
1.Clean around the fuel cap.  
2.Open the fuel cap slowly so that any excess  
pressure is released.  
3.Tighten the fuel cap carefully after fuelling.  
Clean the fuel tank regularly. The fuel filter should be  
changed at least once a year. Contamination in the  
fuel tanks causes malfunction. Make sure the fuel is  
well mixed by shaking the container before fuelling.  
22 – English  
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STARTING AND STOPPING  
WARNING!  
Observe the following before star-  
ting the engine:  
FIG. 38  
!
The engine must be mounted in  
the sawmill before starting.  
Otherwise the clutch can come  
loose and cause personal injuries.  
Keep people and animals well  
away from the risk zone.  
Starting a cold chain saw engine  
(FIG. 38)  
A cold engine is started as follows:  
1. Read through the operator’s manual for the chain  
saw carefully and make sure you understand it  
before attempting to start the chain saw.  
2. Set the stop button to the start position.  
3. Pull out the choke. When the choke is pulled out  
the throttle valve is automatically set in the start  
throttle position.  
4. For other operation, see the chain saw operator’s  
manual.  
Stopping the chain saw engine  
FIG. 39  
(FIG. 39)  
The engine is stopped by setting the stop button to the  
stop position.  
English – 23  
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STARTING AND STOPPING  
Starting the electric sawmill (FIG. 41)  
WARNING  
FIG. 40  
The sawmill must not be started  
until the appropriate current and  
voltage have been connected. Use  
suitable personnel trained in the  
country in question.  
!
NOTE! The first time the sawmill is started or  
when it has been moved to another power  
outlet:  
Test start the sawmill in accordance with  
the starting instructions.  
Check the chain direction. If the chain runs  
in the wrong direction, there is a phase  
inverter on the power connector (FIG. 40).  
The phase is inverted with the aid of a  
screwdriver, as illustrated in FIG. 40.  
FIG. 41  
B
1. Check that the power cable is connected correctly.  
2. Keep the green start button (29) pressed in using  
your left hand. Now press in the start/stop handle  
(B) with your right hand and the sawmill will start.  
The sawmill stops as soon as the handle is not  
activated. The sawmill can also be stopped using  
the red stop button (32).  
29  
32  
37  
A
27  
3. Check the chain direction, see FIG. 29.  
16  
Starting the electric sawmill with feed  
FIG. 42  
(FIG. 42)  
1. Check that the power cable is connected correctly.  
2. Keep the green start button (29) pressed in using  
your right hand. Then press the black safety  
switch (37) using your left hand. When the sawmill  
has started, the safety switch must be held in  
during sawing.  
30  
31  
29  
37  
27  
3. Start feeding with the white start button (30) using  
your right hand. Ensure that the control (31) is in  
position ”0”.  
4. Then increase the speed with the variable control  
so that the saw carriage starts moving. Then  
adjust to the desired feed speed. CAUTION!  
There is variable adjustment for feeding, so  
overloading is possible depending on the width of  
the saw cut. In the event of overloading, the  
current to the saw motor is broken.  
5. The sawmill stops as soon as the safety switch is  
not activated.  
6. Return feeding is started with the white start  
button (30) and the speed is controlled with the  
variable control. Return feeding only starts when  
the saw motor is switched off.  
24 – English  
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USE  
Securing the Log  
WARNING!  
Exercise care during all log hand-  
FIG. 43  
!
ling. Heavy lift! Wear boots or  
shoes fitted with steel toecaps.  
1. Fold up the stops (C) on the left-hand side of the  
rails.  
2. Roll the log up against either the long or the short  
log support, depending on the timber dimensions.  
• than 300 mm to the end of the rails  
• than 500 mm to the start of the rails  
This means that when using two rail sections, the  
maximum log length is 5200 mm.  
3. Raise the log using the log lifter (B) so that the  
log’s core is horizontal.  
4. Lock the log in position with the log lock (D).  
FIG. 44  
English – 25  
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USE  
Calculating the Yield  
Measure the log’s top end and determine how the log  
should be utilised for the timber in question. Include  
the thickness of the saw cut in the calculation.  
FIG. 45  
The saw cut thickness = 7 mm.  
Sawing  
WARNING!  
Use the following protective  
FIG. 46  
!
equipment when sawing:  
11  
• Boots or shoes fitted with steel toecaps.  
• Hearing protection.  
• Eye protection.  
• Always have a first aid kit nearby.  
Before starting the engine, check that:  
• All guards are fitted and undamaged.  
• No unauthorised personnel are within the  
risk zone.  
1. Place the log on the rails facing the folding log  
supports (FIG. 44).  
2. Set the height of the bandsaw blade using the  
crank (11).  
3. Clean any sand from the log, if necessary. This  
results in less wear.  
4. Check and if necessary top up the chain oil tank  
with chain oil on each sawmill.  
5. Check the fuel tank and fill with fuel if necessary,  
see page 22.  
6. Check that the chain runs in the right direction,  
see page 18.  
26 – English  
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USE  
WARNING!  
Check during sawing that the chain  
does not hit the folding stops or  
log lock.  
!
!
WARNING!  
The saw carriage must not be  
moved backwards while the chain  
is in motion. The log could come  
loose and cause personal injury.  
Starting the Petrol Engine  
1. Start the engine. See page 23.  
FIG. 47  
Starting the Electric Motor  
1. Start the electric motor. See page 24.  
Sawing  
2. Move the saw carriage forwards and cut off the  
sapwood.  
3. Remove the sapwood.  
4. Loosen the log, turn it 180°, lower the height  
adjuster (B), and secure the log.  
5. Set the required cutting height using the height  
adjustment crank (11). This determines the width  
of the board.  
FIG. 48  
6. Cut off the sapwood on the other side. See p 2  
and 3.  
English – 27  
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USE  
7. Loosen the log and turn it 90°.  
FIG. 49  
FIG. 50  
FIG. 51  
8. Adjust the top end of the log using the height  
adjuster and secure the log with the flat surface  
tightened against the stop.  
9. Cut off the upper sapwood.  
10. Loosen the log, turn it 180°, lower the height  
adjuster, and secure the log.  
11. Cut the block according to the previous  
instructions. Remember to compensate for the  
thickness of the bandsaw blade for each  
adjustment of the bandsaw blade’s height.  
Data for the height adjustment crank:  
• 1 turn = 5 mm.  
The scale can also be used for varying standard  
dimensions.  
Edging (FIG. 51)  
Several boards can be edged simultaneously by  
clamping them against the stop.  
Place a batten between the boards and the stop in  
order to keep the boards still during cutting. The batten  
should be at least 50 x 100 mm.  
28 – English  
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MAINTENANCE  
WARNING!  
FIG. 52  
The one-man sawmill must be  
disconnected from power during  
all maintenance work. Always use  
personal protective equipment.  
!
Clutch drum  
When replacing the clutch drum on the chain saw, see  
the chain saw operator’s manual.  
The clutch drum on the chain sawmill with electric  
motor has a setscrew installed in the end of the drive  
shaft. The task of the screw is to prevent the clutch  
drum from unscrewing in the event the sawmill is  
started in the wrong direction. CAUTION! The screw  
and its washer must be unscrewed before the clutch  
drum can be removed. The clutch drum has left-hand  
threads.  
The clutch drum is equipped with ring sprockets  
(replaceable). The clutch drum has a needle bearing  
on the output shaft, which has to be greased regularly  
(once a week). CAUTION! Use only high quality  
bearing grease.  
FIG. 53  
English – 29  
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MAINTENANCE  
Saw chain  
WARNING!  
The chain is sharp and can cause  
cuts. It can cause personal injury  
when handled carelessly. Always  
wear protective gloves when  
working with the saw chain.  
!
The chain is correctly tensioned when there is no slack  
on the underside of the bar, but it can still be turned  
easily by hand. Hold up the bar tip and tighten the bar  
nuts with the combination spanner. When fitting a new  
chain, the chain tension has to be checked frequently  
until the chain is run-in. Therefore check the chain  
tension regularly. A correctly tensioned chain means  
good cutting performance and a long lifetime.  
The chain should be sharpened regularly to give  
optimal performance. During normal sawing of most  
species of wood this should be done at intervals of  
approximately 2 hours effective cutting time (i.e. the  
time that the saw chain is actually working). The chain  
should be sharpened more frequently when cutting  
those species of wood with a high sand content. A  
special file gauge (article no. 504 98 16-78) is  
available as an accessory for sharpening the saw  
chain. The file gauge may be ordered from your dealer.  
Adjusting the bar  
When replacing the bar and chain, the position of the  
bar may be altered. In order to eliminate poor cutting  
results, the adjustment of the bar should be checked  
(see Adjusting the bar, page 20).  
FIG. 53  
L
1
5
Type  
95R  
Inch  
Inch/mm Inch/mm  
.050"/1,3 3/16" /4,8  
Degree  
85°  
Degree  
5°  
Degree  
10°  
Inch/mm  
Inch/cm: dl  
.325"  
0,025"/0,65  
16"/40:82  
20"/50:82  
30 – English  
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MAINTENANCE  
Drive belt  
FIG. 54  
Chain sawmill with electric motor  
(FIG. 54)  
The drive belt becomes worn as the sawmill is used.  
The belt should be replaced after 200 hours of  
operation to avoid a belt failure during operations. If  
the drive slips or the belt needs to be adjusted  
frequently, this is a sign that the belt needs to be  
replaced. Replace the belt as follows:  
A
E
1. Disconnect the connector from the distribution  
box.  
2. Disconnect the belt guard (A).  
3. Completely remove the belt adjuster (B).  
B
4. Disconnect the electric motor by loosening the  
screws.  
5. Carefully lift up the motor and replace the belt.  
6. Ensure that the belt is correctly positioned in the  
tracks (C) on both pulleys.  
C
D
7. Screw the motor into position and tension the belt  
with the tension screw (B). Check the belt tension  
with your thumb (D) and install the belt guard (A).  
10 mm  
The saw unit’s height  
adjustment  
FIG. 55  
Maintenance procedures on the components listed  
below are necessary in order to assure the saw  
chain’s vertical adjustment.  
Runners  
The guides that locate the saw saddle should be  
wiped clean and moistened with oil as required.  
Height adjustment screw  
The screw must be wiped clean and lubricated if  
necessary.  
Adjusting the saw saddle  
The saw saddle’s plastic guides may need to be  
adjusted after a few hours of use. This is done as  
follows:  
FIG. 56  
1. Slacken off the three mounting nuts.  
2. Screw in the two adjustment screws until there is  
no play, then tighten the nuts.  
3. Check the position of the bar in relation to the log  
bolsters and adjust if required, see page 20.  
English – 31  
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MAINTENANCE  
Maintenance  
The maintenance described in this section refers to  
measures that can be carried out by the user. If faults  
are detected that cannot be rectified in accordance  
with this operator’s manual, contact your nearest  
authorised service representative.  
Monthly maintenance  
Daily maintenance  
1. Check the clutch function, see page 29.  
1. Check that nuts and screws are tight.  
2. Check cables and connections.  
2. Height adjustment mechanism: Clean the height  
adjustment screw and guides, see page 31.  
3. Check that the saw carriage runs easily and that  
no binding is felt which can indicate bearing  
damage. Replace the wheels if needed. See page  
17.  
3. Clean any sawdust from the bar.  
4. Check that all safety devices are undamaged and  
work. Check:  
4. Adjust the play on the bearings that run on the  
underside of the rails, see page 17.  
• Start/stop devices  
• Electrical contacts  
• Band wheel guards  
• Rail stops  
• Rail guards  
• Electrical cables and electrical connections  
5. Check the bolted joints on the rail sections, see  
page 16.  
6. Check that the rails rest against all contact points  
on the wooden beams.  
5. Sharpen the chain if necessary. When cutting  
timber with a normal sand content and hardness,  
these actions should be carried out after about 2  
hours of sawing (time for adjustments, timber  
handling, etc., is not included). See page 30.  
Storage  
If the chain sawmill needs to be stored for a long  
period without being used the following applies:  
1. Empty and clean the chain saw’s fuel tank.  
2. Dismantle the chain and bar.  
6. For the chain saw’s daily maintenance, see the  
chain saw operator’s manual. See also weekly  
and monthly maintenance for the chain saw.  
3. Remove the saw carriage and unbolt the rail  
sections.  
4. Oil all parts.  
Weekly maintenance  
1. For chain saw maintenance, see the chain saw  
operator’s manual.  
5. Store the chain sawmill in a dry location.  
6. After a period of one year the following measures  
apply:  
• Oil all parts.  
2. Check the belt tension and adjust if required. See  
page 31.  
3. Clean around the rails. Remove sawdust, bark  
and wood chips to facilitate handling of the chain  
sawmill.  
32 – English  
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TECHNICAL DATA  
Technical data  
Chain saw engine  
See information under the heading Technical data  
in the chain saw operator’s manual.  
Electric motor  
50 Hz 5,5 kW, 2855 r/min  
11,0 – 11,1 A  
Power 380-420 V y-connection:  
Ampere:  
50 Hz 5,5 kW, 2855 r/min  
18,9 – 19,0 A  
Power 220-240 V delta connection:  
Ampere:  
Direct current  
Electric motor feed 42 volt.  
Weights  
40  
70  
22  
Saw carriage, chain saw engine, kg  
Saw carriage, electric motor, kg  
Electric feed unit, kg  
115  
Two rail sections, kg  
Cutting equipment  
Chain:  
95R  
Chain type  
0,325  
0,050/1,3  
16" 68  
Pitch, inches  
Track width, inches/mm  
Drive links  
20" 82  
503 30 70-68  
503 30 70-82  
Part no. chain 16"  
Part no. chain 20"  
Bar:  
501 96 16-68  
501 96 16-82  
Part no. bar 16"/40  
Part no. bar 20"/50  
Capacity  
500  
Max. log height, mm:  
500  
Max. log width, mm:  
5100  
21,5  
22,5  
Max. log length, mm: (2 rail sections)  
Chain speed chain saw engine, m/s:  
Chain speed, electric motor, m/s:  
Setting options  
0,325"/ 5  
0,5  
Height adjustment crank/turns, mm:  
Index plate, resolution, mm:  
English – 33  
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TECHNICAL DATA  
Noise Levels  
Equivalent noise intensity at operator’s ear during  
sawing, measured according to ISO 7917, dB(A)  
Petrol engine:  
104,9  
89,8  
Electric motor:  
Equivalent noise level measured according to EN  
1807 and ISO 7960, dB(A)  
Petrol engine:  
112,9  
102,3  
Electric motor:  
Vibration Levels  
Vibration level in the handle, during sawing,  
according to international standards, m/s2  
Petrol engine:  
Left  
5
Right  
5
Electric motor:  
1,8  
1,8  
EU Declaration of Conformity (only applies to Europe)  
Directive 98/37/EC, Appendix 2 A  
Lennartsfors AB, Lennartsfors 1, SE-672 92 ÅRJÄNG, hereby guarantees that the one-man sawmills Husqvarna  
SMC 50 and SMC 50 E, SMC 50 EF, with serial numbers 02 100001 – 02 5200100, meet the standards prescribed  
in the COUNCIL’S DIRECTIVES:  
- of 22 June 1998 ”relating to machinery” 98/37/EC, appendix IIA.  
- of 3 May 1989 ”relating to electromagnetic compatibility” 89/336/EEC, and applicable supplements.  
- of 19 February 1973 ”relating to electrical equipment”, 73/23/EEC.  
For information regarding noise emissions, see the Technical Data chapter.  
The following harmonised standards have been applied: EN292-1, EN 60204:1.  
SMP Svensk Maskinprovning AB, Fyrisborgsgatan 3, SE-754 50 Uppsala, Sweden, has carried out voluntary  
type approval for Lennartsfors AB. The certificates are numbered: SEC/95/248 – SMC 50 and SEC/95/249 – SMC  
50 E, SMC 50 EF. The supplied one-man sawmill conforms with the example that underwent EU type approval.  
Årjäng, 23 October 2003  
Örjan Gustafsson, Product Manager, Lennartsfors AB  
´®z+H7|¶6_¨  
34 – English  
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114 02 39-26  
´®z+H7|¶6_¨  
2004W12  
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