Mitsubishi S12U User Manual

Chapter 5 PERIODIC MAINTENANCE CHART
5-6
Every 12000
service
hours
Fuel system
Fuel control
linkage
Change ball joints and ball bearings.
½
Fuel injection
pump
Disassembe and maintain, and change deflec-
tors and O-rings.
Fuel feed pump Change oil seals and O-rings.
Fuel injection
pipes
Change.
Fuel injection
timing
Inspect and adjust.
Fuel pressure
regulator valve
Inspect.
Fuel system
accumulator
Change.
Fuel pipes Change O-rings and sealing washers.
Lubricating
system
Oil pump Change bushings.
Oil cooler Inspect and clean element.
Regulator valve Disassemble and maintain.
Oil pipes Change O-rings and gaskets.
Cooling
system
Water pump Change bearings.
Coolant pipes Change O-rings.
Inlet and
exhaust
systems
Turbocharger
Remove carbon deposits and change seal rings,
bearings and expendable parts.
Air cooler Clean element.
Air cooler cover Change gaskets.
Air inlet pipes Change O-rings.
Exhaust pipes Change gaskets, bolts and nuts.
Exhaust duct Change V-clamps.
Air starter
system
Starting valve Inspect, lap and change O-rings and gaskets.
Air pipes Change gaskets.
Air tank Inspect safety valve operation.
Distributor Change valve, shaft, bushings, pins and gaskets.
Protection
device
Increasing cool-
ant tempera-
ture,
decreasing oil
pressure, over-
speed and
emergency
stop device
Inspect operation.
Flexible hoses Change.
Table 5-1 Periodic maintenance chart for engine in regular use (4 / 5)
Service
interval
Service item Service contents Page

Mitsubishi S12U Specifications

General

Brand	Mitsubishi
Model	S12U
Category	Engine
Language	English