In order to keep the engine in top running condition, perform regular maintenance checks.
In this way small malfunctions can be detected and corrected before they lead to serious engine failure.
First 50 hrs.
Daily
Every 100 hrs. Every 250 hrs. Every 300 hrs. Every 500 hrs.
Note
Check and refil
Drain any deposit or dirt
Before refiling
Air venting from F.O. return pipe
Every 50 hrs.
Clean fuel filter element
Replace fuel filter element
fig. 1
Check fuel injection timing
Check fuel injection valve
Check fuel injection sound
Check oil level in crankcase and clutch case
Lubrication (starter chain etc.)
Change lub. oil in crankcase
fig. 2
Replace lub. oil strainer
fig. 3,4
Change lub. oil in clutch case
After operation
in cold water
Check cooling water circulation
Check water pump impeller
fig. 5
Clean thermostat
fig. 6
Check anticorrosive zinc
fig. 7,8
Retighten bolt
Adjust intake & exhaust valves clearance
Clean pre-combustion chamber
Lap intake & exhaust valves
Check valve stems & valve guides
Check battery electrolyte level
Check lamps (charging Lub. oil warning & C.W. warning)
Check belt tension
Retighten major bolts and nuts
Cooling water
Drain water
Cylinder head
Others
PERIODICAL CHECK
VIII
Item
Description
Fuel oil
Lub. oil
