15
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
o
ff
,
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
o
ff
,
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 Hitachi Authorized Service
Centers.
NOTE
Standard Idle rpm is 2,800 – 3,200 rpm.
WARNING
When
the
engine
is
idling
the
cutting
attachment
must
under
no
circumstances
rotate.
000Book̲CG22EAS̲US.indb 15
000Book̲CG22EAS̲US.indb 15
2012/07/09 7:44:41
2012/07/09 7:44:41