Maintenance - Hitachi CG 25EUAP Safety Instructions And Instruction Manual

English
WARNING
A cutting attachment can injure while it
continues to spin after the engine is stopped
or throttle trigger 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. 16)
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. Be sure the cutting
attachment stop turning when the engine idle. 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
12
T
Fig. 16
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 min
WARNING
When the engine is idling the cutting
attachment must under no circumstances
rotate.
Changing the engine oil
Dirty engine oil will considerably reduce the service
life of the engine. Check and change the engine oil
regularly.
CAUTION
● To avoid risk of burn injury, allow the engine
to cool thoroughly before changing the
engine oil.
● To prevent breakdown, ensure that no sand
or dirt gets into the tank while refueling.
When to change the oil: When fi rst using the unit,
after approximately 10 hours of operation or after
1 month, whichever occurs earlier; subsequently,
after every 50 hours of operation or every 6 months,
whichever occurs earlier.
Specifi ed engine oil: Multigrade oil of classifi cation
SAE 10W-30
Engine oil capacity: 4.88 cu. in. (80 ml)
1. Turn off the ignition switch.
2. Check that the fuel cap is securely tightened.
3. Remove the oil cap, tilt the unit so that the oil
tank opening is on the underside and drain the
engine oil into a container. (Fig. 17)
.
–1
Fig. 17