Maintenance - Hitachi Koki CG 31EBSP Mode D'emploi

Before operation, make sure that the emergency
release pinch on the shoulder harness is working
properly.
Stopping (Fig. 26)
Decrease engine speed and run at an idle for a few
minutes, then turn off ignition switch (9).
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.
How to use nylon head
When cutting, operate engine at over 6500 rpm.
Extended time of low rpm may wear out the clutch
prematurely.
This product is designed so that it will stop cutting
when the nylon line becomes 6-5/16˝ (16 cm) or
longer.
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.
Set the engine speed as low as possible and tap
the Head on the ground. (Fig. 27) Also, you can
extend nylon line with hands but the engine must be
completely stopped. (Fig. 28 )
Adjust nylon line to proper length 4-11/32˝ – 5-1/2˝
(11-14 cm) before each operation.
8
Fig. 26
Fig. 27

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. 29)
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)
English
Fig. 28
T
Fig. 29
13