Maintenance - Hitachi Koki Tanaka TBC-225 Mode D'emploi

○ Wear the harness as shown in the fi gure (if so
equipped). The blade turns counterclockwise,
therefore, be advised to operate the unit from
right to left for effi cient cutting. Keep onlookers
out of working area at least 50 ft. (15 m).
NOTE
Press the quick release button or pull emergency
release fl ap (If so equipped) in the event of
emergency. (Fig. 24)
WARNING
If cutting attachment should strike against
stones or other debris, stop the engine and
make sure that the attachment and related
parts are undamaged. When grass or vines
wrap around attachment, stop engine and
attachment and remove them.
Stopping (Fig. 23)
○ Decrease engine speed and run at an idle for a
few minutes, then turn off ignition switch (15).
15
15
Fig. 23
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.

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. 24)
Fig. 24
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 Tanaka dealer.
NOTE
Standard idle rpm is 2,500 - 3,000/min.
WARNING
When the engine is idling the cutting
attachment must under no circumstances
rotate.
NOTE
Some models sold 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.
T
11
G
G
B
B
F
R
E
S