Doosan D55C-5 Service Manual

D439E Service Manual 2. Engine Mechanical System (D439E)
88
• Defective bearing
• Compressor wheel or
turbine wheel damage due
to the foreign materials
inside.
Inspect the following.
• Deterioration of engine oil
• Oil filter element clogging
• Foreign materials in oil
supply pipe.
• Bearing damage due to
repeated sudden
departures and stops.
Unusual noise and
vibration
Intake system
Turbochar
g
er
Are fixing bolts and nuts of intake system
fastened securely?
Ti
g
hten
Are fixing bolts and nuts of exhaust
system fastened securely
Repair or replace
Are bearing and rotating parts
OK?
Do rotating parts rotate smoothly?
Isn’t turbine wheel shaft bent?
Check the intake and
exhaust piper care fully for
the chip of compressor or
turbine wheel
Are there any foreign materials in
turbocharger ?
Yes
No
Exhaust system
Is exhaust pipe or muffler dama
g
ed? Repair or replace
Yes
No
Yes
No
Yes
Yes
Yes
No

Doosan D55C-5 Specifications

General

Brand	Doosan
Model	D55C-5
Category	Engine
Language	English