ASSEMBLY AND OPERATION
7
(1) Chain Oil: The chain oil ow can be changed by inserting a screwdriver in the hole on the bottom of the
clutch side. Adjust according to your work conditions. (F13)
NOTE: The oil tank should become nearly empty by the time fuel is used up. Be sure to rell the oil tank
every time when refueling the unit.
The carburetor on your unit has been factory adjusted but may require ne tuning
due to changes in operating conditions. Before adjusting carburetor, make sure
the to provide air and fuel lters that are clean and the fuel is properly mixed. Be
sure to adjust the carburetor with the bar chain attached. When adjusting, take the
following steps:
1. Stop the engine and screw in both H and L needles until they stop. Never force
them. Then set them back the initial number of turns as shown below.
H Needle: 1 3/8
L Needle 1 ¼
2. Start the engine and allow it to warm up at half-throttle
3. Turn the L Needle slowly clockwise to nd a position where idling speed is
maximum, then set the needle back a quarter (1/4) turn counterclockwise.
4. Turn the idle adjusting screw (T) counterclockwise so that the chainsaw does
not turn. If idling speed is too slow, turn the screw clockwise.
5. Make a test cut and adjust the H Needle for best cutting power, not for
maximum speed.
(1) L Needle
(2) H Needle
(3) Idle Adjusting Screw
ADJUSTING THE CARBURETOR
Chain Brake: this machine is equipped with an automatic brake to stop chainsaw rotation upon upon
occurance of kickback while in saw cutting operation. The brake is automatically operated by iniertial force
which acts on the weight tted inside the front guard. This brake can also be operated manually with the
front guard turned down to the suidebar. (F15). To release the brake, pull up the front guard toward the front
handle until you hear it click.
How to conrm brake operation:
(1) Turn off the engine
(2) Holding the chainsaw horizontally, release your hand from the front handle, hit the tip of the guide bar to
a stump or a piece of wood and conrm brake operation. Operating level varies by bar size. (F16) In case
the brake is not effective, ask our dealer inspection and repairing the engine.
(3) If being kept rotating at high speed with the brake engaged, can heat the clutch and cause a lot of
problems. When the brake is depressed while in operation, immediately release your ngers from the throttle
lever and keep the emgine idling.
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General