Mitsubishi S12U Operation & Maintenance Manual page 68

Chapter 5
PERIODIC MAINTENANCE CHART
Table 5-3 Periodic maintenance chart for general-purpose power supply engine (2 / 5)
Service
interval
Every 3000
Valve clearance
service
hours
Fuel injection nozzles
After 3000 Fuel filter (wire-element)
services
Breather
hours or 2
years,
Governor oil filter
whichever
Air cleaner element
comes first
Pre-cleaner
Magnetic pickup
Fuel system accumulator
After 6000 Camshafts and tappets
services
Crankcase
hours or 4
years,
whichever Water pump
comes first
Damper
Turbocharger
Inspection of pipe clamps of
fuel lines, oil lines, instrument
pipes and starting air pipes
Flexible hoses
Protection
device
After 12000
service Flexible hoses
hours or 4
years,
whichever
Fuel system accumlator
comes first
After 12000
service
hours or 2
Coolant
years,
whichever
comes first
5-14
Service item
Increasing cool-
ant tempera-
ture,
decreasing oil
pressure, over-
speed and
emergency
stop device
Service contents
Inspect and adjust (also inspect inside of rocker
chamber).
Inspect and change nozzle tipes and adjust pres-
sure.
Clean inside.
Inspect and clean mist separator, and change
expendable parts.
Change.
Change.
Change.
Inspect clearance with the flywheel, attachment
of foreign items on the tip, mounting nut tight-
ness, an open-circuit and connector disconnec-
tion.
Refill with nitrogen gas.
Inspect.
Inspect inside (remove the side cover for inspec-
tion).
Change oil seals, unit seals and other expend-
able parts.
Check temperature with thermo label and check
for silicon oil leakage.
Inspection of shaft and wheel for smooth rotation
and thrust for looseness.
Inspection of interference and wear, and repair
rubber tape.
Change.
Inspect operation.
Change.
Change.
Change.
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6-18
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