14
Chain saw lubrication test
Control the chain to operate towards
one dry surface and accelerate the
throttle to operate at half speed for
about 30s.
Check whether a clear oil line can be
seen on the dry surface.
Chain brake
Check of braking performance of brake
1. Place the chain saw on the ground.
2. Control the handle with both hands
to accelerate the engine to high
speed.
3. Trigger the front baffle by rotating
the left wrist holding the front baffle,
so as to enable the chain brake.
4. The chain is stopped immediately.
5. Loosen the throttle.
Release of chain brake
The chain brake is released when the
front baffle completely returns to the
operator side.
If the chain cannot be stopped
immediately, send the chain saw to
POWERKING
for maintenance.
Warning
Danger
Most of risks are caused by bounce of the guide plate,
while bounce is caused when the top of the guide plate
is subject to collision against wood or similar objects.
The chain brake can be used to reduce or avoid physical
injury caused by bounce of the guide plate.
Check the effectiveness of the chain brake before using
the chain saw each time.
Non-artificial invention of chain brake
The tail end of the guide
plate must be kept 35cm
above the plane.
35cm
Hold the rear handle
with the right hand.
Non-artificial invention of the chain brake means that the chain
brake is stopped as a result of bounce of the tail end of the guide
plate. In order to ensure the normal action of the chain brake
free from artificial invention, take the following test steps.
1)
Stop the engine of the chain saw.
2)
Carefully control the front and rear handle by hand until
the tail end of the guide plate is 35cm high, as shown in
the above figure.
3)
Carefully rotate the left hand holding the front handle until
the front part or top of the guide plate hits the wood or
similar objects under the chain saw. In this case, the chain
saw is subject to impact (do not hold the rear handle too
tightly with the right hand).
4)
The impact will be transferred to the front baffle to
activate the chain brake.
Attention
To exercise the operation, press the front baffle
forwards to activate the brake in the process of
cutting small trees. If the chain brake is stuck in wood
chippings, the functions of the chain brake will be
weakened. Always keep the system clean.
Do not check the chain brake in the place with
gasoline mist.
Chain braking
direction
Direction of
release of
chain brake
Summary of Contents for PK4516
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