8-19
Chapter 8 PERIODIC INSPECTION AND MAINTENANCE PROCEDURES
Inlet and Exhaust Systems
Turbocharger - Inspect
Disconnect the pipe from the air inlet side. Hold the
compressor wheel nut by hand and turn the wheel to
check for looseness or rotation smoothness. Replace
the turbocharger if any abnormal movement is found.
Note: When removing and inspecting turbocharger,
contact a dealer of Mitsubishi Heavy Industries,
Ltd.
Also, inspect that there is any discoloration or
damage on the compressor wheel fins.
Fig. 8-24 Turbocharger - Inspect
Exhaust Muffler - Drain Water
Remove the drain plug and allow water to drain from
the exhaust muffler.
Note: If the specification of exhaust muffler differs from
the contents of this operation manual, follow the
manufacturer's operation manual.
Fig. 8-25 Draining Water From the Exhaust Muffler
Check the turbocharger when the engine is cold.
Also, make sure that the compressor wheel is not
rotating before inspecting the turbocharger.
If the color of the exhaust gas is abnormal, also
inspect the turbocharger.
The exhaust muffler is very hot immediately after
operation. Never touch the exhaust muffler by hand.
Work must be conducted after the exhaust muffler
cools at the room temperature.
Drain plug
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