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– Slot all the drive links in to the guide bar groove.
Fit the drive links at the tip of the bar correctly
around in to the nose sprocket teeth.
– Slide the guide bar away from the bar head to put
some tension on the saw chain.
– With the screwdriver, tighten the chain tension
adjuster screw (25) clockwise. Ensure the chain
and guide bar do not come apart while fitting.
– Also ensure the drive links have not separated
from the sprockets.
– Check the chain tension half way along the guide
bar by pulling the drive links out of the groove.
Continue tightening the chain tension until only a
complete drive link (28) is visible.
– Elevate the tip of the guide bar, keeping light
pressure down on the front of the power head
while tightening the clutch cover nuts fully.
– When secure, ensure the chain brake is
disengaged and check to see that the chain runs
freely in the guide bar groove.
– When operating a new saw chain, stop and check
the tension after a few minutes work (with the
engine stopped and blade brake
applied). This is necessary due to initial stretch
being taken up in the chain links.
– Warning: A loose saw chain is dangerous and may
result in a serious accident.
FIG.9
FIG.10
FIG.11
FIG.12
(25)
(28)
Warning: The saw chain continues to move for a period after the throttle has been released.
9.2 WARM STARTING THE ENGINE
– Position the ON/OFF switch (19) to the “I”. Pull out the choke (12) to engage the throttle
advance (midway position), turn the choke to off immediately.
– Pull the recoil starter cord (9) to start the engine. Operate the throttle trigger lockout (14) and
throttle trigger (15) to release the throttle advance.
9.3 STOPPING THE ENGINE
To stop the engine lower the stop switch (19) to the “O” position.
Note: If the chain saw has been running at full speed for a prolonged period, allow the saw to idle
for a few minutes before stopping the engine.
The engine shall be stopped while carrying out any other operation such as:
– Refuelling.
– Topping up chain oil.
– Making checks or adjustments.
– Cleaning.
– Moving from one place to another by foot.
– Transporting.
9.4 PERSONAL PROTECTIVE
EQUIPMENT (PPE) (FIG.21)
Warning: Chain saws pose a very significant health
and safety risk even to careful and trained operators.
Due to the nature and ferocity of a petrol driven chain
saw, no PPE can provide 100% protection against
chain saw cuts.
Equipment specifically designed for use with a chain
saw shall be worn, consisting of:
– A safety helmet with mesh visor and ear defender
to protect against falling/thrown debris and the
high levels of noise generated.
– Gloves with additional protective guard material
on the back of the left hand to defend against
chain whip in the event of breakage.
– Trousers or chaps with leg protection
incorporated into the front/side. In case of contact
with a moving saw chain the clogging material is
designed to stop the chain before it penetrates
fully through and into flesh.
FIG.21
- 17 -
- 20 -
8. ASSEMBLY
9. OPERATING INSTRUCTIONS
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