Mitsubishi S6R2 - Output Decrease; Table 11-3 Output Decrease

11-4
Chapter 11 TROUBLESHOOTING
Output Decrease
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.
Table 11-3 Output Decrease
Cause Remedies
Fuel system
Improper fuel property Use appropriate fuel. (Refer to P4-1)
Clogged fuel filter
Inspect and replace fuel filter. (Refer to P8-9)
Clean gauze filter. (Refer to P8-8)
Faulty fuel injection timing
Check fuel injection pump couplings.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Improper amount of injected fuel
Check fuel injection pump rack stroke.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Faulty fuel feed pump Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Cooling
system
Overheat, overcooled
Check fan and heat exchange equipment.
Check control system.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Inlet and
exhaust
systems
Insufficient amount of air
Check turbocharger. (Refer to P8-19)
Clean, inspect and replace air cleaner element. (Refer to P8-
21)
Check intake air pressure and leakage of intake air.
Check intake air temperature and ventilation device.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Increase resistance of exhaust air.
Check turbocharger. (Refer to P8-19)
Check exhaust pipes and silencer.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Basic engine
Low compression pressure Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Faulty valve timing Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Wear of sliding parts Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Control
system
Faulty governor control
Consult a dealer of Mitsubishi Heavy Industries, Ltd.