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Fig. 25
WARNING
KICKBACK DANGER
Do not attempt a boring cut if you are not
properly trained. A boring cut involves the
use of the nose of the guide bar and can
result in kickback. (Fig. 26)
Fig. 26
IF THE SAW GETS STUCK
Stop the engine. Raise the log or change its position,
using a thick branch or pole as a lever. Do not try
to pull the saw free. If you do, you can deform the
handle or be injured by the saw chain if the saw is
suddenly released.
MAINTENANCE
MAINTENANCE, REPLACEMENT OR REPAIR
OF THE EMISSION CONTROL DEVICES AND
SYSTEM MAY BE PERFORMED BY ANY NON-
ROAD ENGINE REPAIR ESTABLISHMENT OR
INDIVIDUAL.
Carburetor adjustment (Fig. 27)
Fig. 27
WARNING
Never start the engine without the complete
clutch cover.
Otherwise the clutch can come loose and
cause personal injuries.
In the carburetor, fuel is mixed with air. When the
engine is test run at the factory, the carburetor is
adjusted. A further adjustment may be required,
according to climate and altitude. The carburetor has
one adjustment possibility:
T = Idle speed adjustment screw.
Idle speed adjustment (T)
Check that the air fi lter is clean. When the idle
speed is correct, the cutting attachment will not
rotate. If adjustment is required, close (clockwise)
the T-screw, with the engine running, until the
cutting attachment starts to rotate. Open (counter-
clockwise) the screw until the cutting attachment
stops. You have reached the correct idle speed
when the engine runs smoothly in all positions well
below the rpm when the cutting attachment starts to
rotate.
If the cutting attachment still rotates after idle speed
adjustment, contact HITACHI dealer.
WARNING
When the engine is idling the cutting
attachment must under no circumstances
rotate.
NOTE
Some models sold in areas with strict exhaust
emission regulation do not have high and low
speed carburetor adjustments. Such adjustments
may allow the engine to be operated outside
of their emission compliance limits. For these
models, the only carburetor adjustment is idle
speed.
15
English