Filter
Top Products
14
English
24
Fig. 30
For models with an engine ignition switch, keep the
ignition switch pressed until the engine comes to a
complete stop.
WARNING
A cutting attachment can injure while it
continues to spin after the engine is stopped
or power control is released. When the unit is
turned off , make sure the cutting attachment
has stopped before the unit is set down.
Semi-auto cutting head
○ When cutting, operate engine at over 6,500 rpm.
Extended time of use at low rpm may wear out
the clutch prematurely.
○ Cut grass from right to left.
○ Cut grass from left to right (only curve shaft
model).
WARNING
A cutting attachment can injure while it
continues to spin after the engine is stopped
or power control is released. When the unit is
turned off , make sure the cutting attachment
has stopped before the unit is set down.
Automatically feeds more nylon cutting line when it is
tapped at low rpm (not greater than 4,500 rpm).
MAINTENANCE
MAINTENANCE, REPLACEMENT OR REPAIR
OF THE EMISSION CONTROL DEVICES AND
SYSTEMS MAY BE PERFORMED BY ANY NON-
ROAD ENGINE REPAIR ESTABLISHMENT OR
INDIVIDUAL.
Carburetor adjustment (Fig. 31)
Fig. 31
WARNING
● The cutting attachment may be spinning
during carburetor adjustments.
● Never start the engine without the complete
clutch cover and tube assembled! 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
basically 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 your Hitachi dealer.
NOTE
Standard Idle rpm is 2,800 – 3,200 rpm.
WARNING
When the engine is idling the cutting
attachment must under no circumstances
rotate.