Overheating; Low Engine Oil Pressure; Table 11-8 Overheating; Table 11-9 Low Engine Oil Pressure - Mitsubishi S6R2 Operation & Maintenance Manual

Overheating

Cause
Low coolant level
Cooling
Faulty water pump operation
system
Faulty thermostat operation
Faulty heat exchanger operation
Control
Increase in load
system
Basic engine Wear of sliding parts
Note: The table above also include the parts Mitsubishi Heavy Industries, Ltd. does not supply. For the parts Mitsub-
ishi Heavy Industries, Ltd. does not supply, inspect and maintain them following the manufacturer's operation
manual.

Low Engine Oil Pressure

Cause
Insufficient amount of engine oil
Faulty engine oil property
(viscosity)
Lubricating
Engine oil temperature is high.
system
Oil filter clogged
Faulty oil pump operation
Faulty relief valve operation
Control
Oil pressure gauge failure
system
Increase in load
Basic engine
Rapid wear of sliding parts
Increase clearance of sliding part.

Table 11-8 Overheating

Check coolant leakage
Check coolant level.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check and clean heat exchanger.
Check fuel injection pump rack stroke.
Check control system and governor controller.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.

Table 11-9 Low Engine Oil Pressure

Check amount of engine oil and lubrication system.
P3-9)
Analyze oil property. Use appropriate engine oil.
1)
Check coolant system.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Inspect and replace oil filter and bypass oil filter.
14)
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check control system and wire.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check fuel injection pump rack stroke.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Chapter 11 TROUBLESHOOTING
Remedies
(Refer to P3-10)
Remedies
(Refer to
(Refer to P5-
(Refer to P8-
11-9