GB-10
G3802/G3802EZ
1. Stop engine and screw L needle until it stops. Never
force. Then set it back the initial number of turns as
shown below. H needle is restricted within the number
of turn as shown below.
H needle : 1
3
/
8
±
1
/
4
L needle : 1
1
/
4
±
1
/
4
2. Start the engine and allow it to warm up in low speed
for a few minutes.
3. Turn L needle slowly clockwise to find 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 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 cut-
ting power, not for maximum speed.
■
CHAIN BRAKE
This machine is equipped with an automatic brake to
stop saw chain rotation upon occurrence 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 operation during daily inspec
-
tion.
How to confirm:
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
stump or a piece of wood, and confirm brake opera
-
tion. Operating level varies by bar size.
In case the brake is not effective, ask our dealer for in-
spection 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 operation, immediately
release the throttle lever to stop the engine.
■
STOPPING THE ENGINE
1. Release the throttle lever to allow the engine to idle
for a few minutes.
2. Set the switch to the “O” (STOP) position.
Switch
Carburetor anti-freeze mechanism
Operating chain saws in temperatures of 0 – 5°C at times
of high humidity may result in ice forming within the
carburetor, and this in turn may cause the output power
of the engine to be reduced or for the engine to fail 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 which
it is set at the time of shipment. However when the pos-
sibility exists that icing may occur, the unit should be set
to operate in the anti-freeze mode before use. Please
switch between modes in the repair specialty store.
Normal operating mode
Anti-freeze mode
Cylinder cover
“Sunshine” mark
“Snow” mark
Continuing to use the product in the anti-
freeze mode even when temperatures 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 operating mode
if there is no danger of icing occurring.
■
HOW TO SWITCH BETWEEN OPERATING MODES
1. Set the switch to the “O” position to stop the en-
gine.
2. Remove the air cleaner cover, remove the air filter,
and then remove the choke knob from the cylinder
cover.
3. Loosen the screws holding the cylinder cover in place
(i.e., the three screws on the inside and the one screw
on the outside of the cover), and then remove the
cylinder cover.
4. Press with your finger down on the icing cap located
on the right-hand side of the cylinder cover to remove
the icing cap.
5. Adjust the icing cap so that the ‘snow’ mark faces
upwards and then return it to its original position in
the cylinder cover.
6. Fix the cylinder cover back into its original position,
and then fix all other parts back into their proper
positions.
Choke knob
Cylinder cover
Icing cap
01-G3802･3802EZ_GB_306＿三.indd 10
13.6.25 5:26:41 PM
