SERVICE SCHEDULE 9
37
Annually
Every 100 operating hours
Every 50 operating hours
Once after 20 operating hours
Once after 10 operating hours
Perform major engine service including removing and installing engine. (Change valves,
valve springs, valve spring seats and valve spring retainers. Change the connecting rod,
conrod bearing, and crank pin. Check the transmission and shift mechanism. Check the
oil pressure regulator valve. Change the suction pump. Check the force pump and lubri-
cation system. Change timing chain. Change all engine bearings. Change freewheel.)
●
○ One-time interval
● Periodic interval
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