Mitsubishi S12R-T2MPTK Operation & Maintenance Manual page 74

Chapter 7 MAINTENANCE SCHEDULE
Inspection and Mainte-
nance Intervals
Every 8000 service
hours
or every 5 years
Every 16000 service
hours
or every 10 years
As required
Note: (a) The table above also includes the parts not supplied by MHIET For the parts that are not supplied
by MHIET inspect and maintain them in accordance with the instructions in the manufacturer's
(supplier) manual.
(b) Items marked with * in the maintenance schedule require special tools or professional maintenance service.
For the servicing of those items, contact a dealer of MHIET.
(c) Be sure to conduct periodic inspection at specified intervals, either service hours or years, whichever
comes first.
7-4
Table 7-1 MAINTENANCE SCHEDULE
Includes service items for every 100, 250, 500, 1000, 2000 and 4000 service
hours.
Engine Overhaul
Fuel Flexible Hose - Replace
Fuel Injection Pump - Inspect and Adjust (Replace parts as needed)
Governor - Inspect and Adjust (Replace parts as needed)
Clamp Seat for High-Pressure Fuel Injection Pipe - Replace
Oil Cooler - Clean
Fresh Water Pump Unit Seal and Ball Bearing - Replace
Seawater Pump Unit Seal and Ball Bearing - Replace
Tension Pulley Bearing - Replace
Thermostat - Replace
Coolant Hose - Replace
Replace coolant expansion tank cap
Turbocharger - Overhaul
Electrical Components - Inspect
Various Relays - Replace (including relays for governor)
Includes service items for every 100, 250, 500, 1000, 2000, 4000 and 8000
service hours.
Replace the following parts with new ones:
Piston, connecting rod bushing, piston pin, rocker bush, gear bushing, tappet,
valve guide, valve spring, connection rod bolt, main bearing cap bolt, high
pressure fuel injection pipe, low pressure fuel pipe, and oil pipe
Cylinder Head Bolt - Inspect
Seawater Strainer Mesh Filter - Clean and Replace
Service items
Piston - Inspect
Crankshaft - Inspect
Main Bearing - Replace
Thrust Plate - Replace
Connecting Rod Bearing - Replace
Camshaft Bushing - Inspect
Cylinder Liners - Replace
Piston Ring - Replace
Inlet and Exhaust Valves - Replace
Inlet and Exhaust Valve Seats - Replace
Valve Rotator - Replace
Damper - Replace
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