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English
MAINTENANCE AND ADJUSTMENT
Periodic Maintenance Chart
WARNING
Prevent accidental starting during engine service by removing the spark plug caps.
Maintenance
Interval
Daily
First
20 hours
Every
20 hours
Every
50 hours
Every
100 hours
Check and replenish fuel
●
Check for fuel leakage
●
Check bolts, nuts and screws for looseness
●
Check cutting head tightness
●
Check throttle and engine switch
●
Check cutting guard
●
Check cooling air inlets
●
Check idle speed (head shouldn’t turn)
●
Apply a few drops of machine oil to cutting blade
●
Inject grease in to gear case assembly
●
●
Clean fuel filter
●
●
Clean fuel tank cap
●
●
Clean air cleaner element
●
●
Tighten bolts, nuts and screws
●
●
Clean spark plug and adjust electrode gap
●
Remove dust and dirt from cylinder fins
●
Remove carbon deposits on piston head and inside cylinder
●
Remove carbon deposits in the exhaust pipe of muffler
●
Clean screen of spark arrester
●
Check the sliding portion of crankshaft, connecting rod etc.
●
Fuel tube
It is recommended to replace every 3 years
NOTE
○
The service intervals indicated are to be used as a guide. Service to be performed more frequently as necessary by operating
condition.
○
When damage or defect occurs in checked parts, replace with a new one.
: Service more frequently under dusty conditions.
: Service to be performed by an authorized equipment dealer.
Adjustment of Throttle Cable
When setting the engine to equipments, adjust the throttle cable
in the following procedures:
1. Remove the air cleaner cap.
Loose the lock nut.
2. Turn the adjusting screw. Be
sure that the idle screw
touches throttle plate at the
swivel and the play of the
throttle cable is around 2 mm.
3. Squeeze the throttle lever. Be
sure that throttle plate touches
the stopper.
4. Tighten the lock nut.
Fuel Tank Cap Service
A breather passage is
incorporated in the tank cap. If
the breather passage is clogged,
the fuel will not flow into the
carburetor, causing problems
with starting or running the
engine. At the same time, make
sure that the base of the breather
assembly is fitted firmly into the
groove inside the tank cap as
shown.
A B
C
F
E
D
A. Adjusting Screw
B. Lock Nut
C. Throttle Plate
D. Stopper
E. Swivel
F. Idle Screw
A
D
B
C
A. Tank Cap
B. Breather Assembly
C. Fuel Tank
D. Breather Passage
