9 SERVICE SCHEDULE
38
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 the engine. (Change
valves, valve springs, valve spring seats, and valve spring retainers. Change the connect-
ing rod, conrod bearing and crank pin. Check the transmission and shift mechanism.
Check the oil pressure control valve. Change the suction pump. Check the force pump
and lubrication system. Change the timing chain. Change all engine bearings. Change
the shaft seal rings and bearing seals of the main bearing.)
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One-time interval
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Periodic interval