Doosan DL06 - Page 194

DL06K Interim Tire-4 Diesel Engine Maintenance of Major Components
192
Checking items before and after removing the turbocharger
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No Items to check
Expected problem
Troubleshooting
Noise
Power
reduction
Oil
leakage.
Oil con-
sumption.
Black
smoke
Blue
smoke
Before
removal
1
Is there a torn or
deformed intake
system hose?
O O O O Replace the hose
2
Is the clamp
properly connected?
O O O O
Re-tighten the bolts
and he nuts
3
Is the air filter in
good condition?
O O O O
Replace the air
filter, and checking
the turbocharger
and impeller for
damage
4
Is there leakage of
TC coolant or oil
from the oil hose?
O O O O
Replace the hose
and the gasket
5
Is there gas
leakage from the
exhaust manifold
gasket?
O
Replace the nuts
and the gasket
6
Are the solenoid
valve and the
EGR system in
good condition?
O O O
Replace the
solenoid and the
ERG valve
7
Is operation of the
turbo actuator
normal?
O O O O Replace the turbo
During
removal
1
Is there any trace
of leakage
between the
engine block and
the exhaust
manifold?
O O O O O Replace the turbo
2
Is the volume of
foreign material
and oil supplied
through the blow-
by gas normal?
O O O O O
Check the turbo
impeller and the
turbo intake outlet
3
Is there trace of
contact with the
wall due to large
clearance of the
wheel?
O O O O
Check foreign
materials (sand and
metal materials)
4
Is the wheel
damaged?
O O O O
Check foreign
materials (sand and
metal materials)
After
removal
1
Is the wheel
damaged and the
shaft clipped?
O O O O
Check foreign
materials (sand and
metal materials)
2
Is the wheel
rotation normal?
O O O O
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