Output Decrease; Table 11-3 Output Decrease - Mitsubishi Heavy Industries L-Series Operation & Maintenance Manual

Output decrease

Cause
Improper fuel property
Clogged fuel filter
Faulty fuel feed pump
Fuel system
Faulty fuel injection pump
Faulty fuel injection nozzle
Faulty fuel injection timing
Improper amount of injected fuel
Cooling
Overheat, overcooled
system
Insufficient amount of air
Inlet and
exhaust
systems
Increase resistance of exhaust air.
Low compression pressure
Basic engine Faulty valve timing
Rapid wear of sliding parts
Control
Faulty governor control
system

Table 11-3 Output decrease

Use appropriate fuel.
Inspect and replace fuel filter.
(Refer to P8-6)
Gauze filter - Clean
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check fuel injection pump rack stroke.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check fan and radiator.
Check control system.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Clean, inspect and replace air cleaner element.
(Refer to P8-15)
Check intake air pressure and leakage of intake air.
Check intake air temperature and ventilation device.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check exhaust pipes and silencer.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
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 P4-1)
(Refer to P8-5) or
11-3