32 MAINTENANCE
Cooling System Cleaning
Before each operation, check that the air inlet
(rotary) screen is free from grass and debris. Clean
the screen if necessary.
Every 50 hours of operation, check dust or debris
inside fan housing. To check inside, remove the
cleanout cover and see inside from the inspection
ports of fan housing. Clean or blow the dust if
needed. If it is difficult to clean the dust with the
ports, remove the fan housing and clean the dirt
completely.
Every 100 hours of operation, check and clean
the cooling fins and the inside of engine shrouds
to remove grass, chaff or dirt clogging the cooling
system and causing overheating.
Cleaning procedures are as below.
●
Loosen the clamp and detach the air inlet tube.
●
Loosen four bolts and remove the air cleaner.
●
Loosen the screws and remove the voltage
regulator.
●
Loosen the screws and remove the air inlet guard.
●
Remove torx bolts and remove the air inlet screen.
●
Loosen three bolts and remove three bolts at the
fan housing.
●
Remove the fan housing.
●
Clean and blow out the dust or debris from the
cooling fan and the engine body.
NOTE
○
Cover the inlet port of the throttle body to keep
dust out of the opening.
NOTICE
Do not run engine before all cooling system
parts are reinstalled to keep cooling as
intended.
A
C
A. Check the inlet screen.
B. Check and see dust from the inspection port.
C. Loosen bolt and remove cleanout cover.
B