18
3. Main settings
a. Adjusting the carburetor
The carburetor is preset at the factory. To avoid malfunction,
it is recommended not to adjust the adjustment screws.
If these screws require readjustment, have the machine
serviced by your service center.
Stop the tool and tighten the needle L until it stops. Do not
force it. Then set it to its initial number of turns as shown
below. The number of turns for the needle is also shown
below:
b. Chain brake
The chain brake is a device that automatically stops the chain
in case a backward movement occurs, causing the saw to
jump. Normally, the brake is automatically activated by the
inertia force.
It is also manually tightened by pushing the brake lever down
and forward.
When the brake is running, a yellow sign comes out from the
base of the brake lever.
To release the brake, pull the brake lever up until it clicks into
place.
When the brake is working, release the throttle lever to slow
down the engine speed. Continuous use when the brake
is running causes the clutch to heat up and can cause
problems.
When checking the machine before using it, check the
operating condition of the brake by performing the following
operations:
∫
Start the engine and grasp the handle firmly with both
hands.
∫
While pulling the throttle control lever to keep the chain in
operation, push the brake lever down with the back of the left
hand.
∫
When the brake is running and the chain is stopped, remove
the h Loosen the brake.
L
H
