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Idiomas disponibles
Idiomas disponibles
After starting the en-
gine, run the chain
at medium speed and
see if chain oil is scat-
tered off as shown in
the picture.
ADJUSTING THE CARBURETOR
The carburetor on your unit has been factory
adjusted, but may require fine tuning due to a
change in operating conditions.
Before adjusting the carburetor make sure that
the provided air/fuel filters are clean and fresh
and the fuel properly mixed. When adjusting,
take the following steps:
NOTE: Be sure to adjust the carburetor with
the bar chain attached.
1. Stop engine and screw in both the H and
L needles until they stop. Never force them.
Then set them back the initial number of turns
as shown below.
H needle: 3/4 ± 3/8 • L needle: 1 1/2 ± 1/4
2. Start the engine and allow it to warm up at
half-throttle.
3. Turn the L needle slowly clockwise to find a
position where idling speed is maximum, then
set the needle back a quarter (1/4) turn coun-
terclockwise.
4. Turn the idle adjusting screw (T) counter-
clockwise so that the saw chain does not turn.
If the 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.
CHAIN BRAKE
This machine is equipped with an automatic
brake to stop saw chain rotation upon occur-
rence of kickback during saw cutting.
The brake is automatically operated by inertial
force, which acts on the weight fitted inside
the front guard.
This brake can also be operated manually with
the front guard turned down to the guide bar.
To release the brake, pull up the front guard
toward the front handle till a "click" sound is
heard.
CAUTION: Be sure to confirm brake ope-
ration during daily inspection.
How to confirm?
16
1. Turn off the engine.
2. Holding the chain saw horizontally, release
your hand from the front handle, hit the tip of
the guide bar to a slump or a piece of wood,
and confirm brake operation. Operating level
varies by bar size.
In case the brake is not effective, ask your
dealer for inspection and repairs. If the engine
keeps rotating at high speed with the brake
engaged, the clutch will overheat causing
trouble. When the brake engages during op-
eration, immediately release the throttle lever
to stop the engine.
STOPPING THE ENGINE
1. Release the throttle lever to allow the en-
gine to idle for a few minutes.
2. Set the switch to the "O" (STOP) position.
CARBURETOR ANTI-FREEZE MECHANISM
Operating chain saws in temperatures of 0–5˚C
at times of high humidity may cause the out-
put power of the engine to be reduced or for
the engine to fall to operate smoothly.
This product has accordingly been designed
with a ventilation hatch on the right side of
the surface of the cylinder cover to allow warm
air to be supplied to the engine and to thereby
prevent icing from occurring. Under normal
circumstances the product should be used in
the normal operating mode, i.e. , in the mode
to the possibility exists that icing may occur,
the unit should be set to operate in the anti-
freeze mode before use.
WARNING: Continuing to use the product
in the anti-freeze mode even when tempera-
tures have risen and returned to normal, may
result in the engine failing to start properly or
in the engine failing to operate at its normal
speed, and for this reason you should always
be sure to return the unit to the normal oper-
ating mode if there is no danger or icing oc-
curring.
HOW TO SWITCH BETWEEN OPERATING MODES
1. Flip the engine swith to turn off the engine.
2. Remove the cover to the air filter, remove
the air filter, and then remove the choke knob
from the cylinder cover.
3. Loosen the crews holding the cylinder cover
in place (i.e., the three screws on the side and
the one screw on the outside of the cover), and
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