11-8
Chapter 11 TROUBLESHOOTING
Low engine oil pressure
When fuel has run out
When fuel runs out while engine is running and the engine has stopped, restart the engine as described below.
1. Return the starter switch to the "OFF" position.
2. Add fuel to the fuel tank.
For filling fuel tank, refer to "Fuel tank oil level - Check" (3-8).
3. Bleed air from the fuel system.
For bleeding fuel system, refer to "Fuel system - Bleed air" (3-2).
4. Restart the engine.
For starting the engine, refer to "Starting" (3-12).
Table 11-9 Low engine oil pressure
Cause Remedies
Lubricating
system
Insufficient amount of engine oil
Check amount of engine oil and lubrication system. (Refer to
P3-9)
Faulty engine oil property
(viscosity)
Analyze oil property. Use appropriate engine oil. (Refer to P5-
1)
Oil temperature too high
Check coolant system.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Oil filter clogged
Inspect and replace oil filter and bypass oil filter. (Refer to P8-
9)
Faulty oil pump operation Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Faulty relief valve operation Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Control
system
Faulty pressure unit operation
Check control system and wire.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Basic engine
Increase in load
Check control system and governor controller.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Rapid wear of sliding parts Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Increase clearance of sliding part. Consult a dealer of Mitsubishi Heavy Industries, Ltd.
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