Perkins 1204F-E44TA Operation And Maintenance Manual page 133

SEBU9063-07
A visual inspection of the turbocharger or
turbochargers can minimize unscheduled downtime.
A visual inspection of the turbocharger or
turbochargers can also reduce the chance for
potential damage to other engine parts. Do not
inspect the engine with the engine in operation.
Single Turbocharger
Illustration 88
Typical example
1. Ensure that the turbocharger is clean and free from
dirt before removing components for inspection.
2. Remove the pipe from the turbocharger exhaust
outlet and remove the air intake pipe (1). Visually
inspect the piping for the presence of oil. Clean the
interior of the pipes in order to prevent dirt from
entering during reassembly.
3. Check for obvious heat discoloration of the
turbocharger. Check for any loose bolts or any
missing bolts. Check for damage to the oil supply
line and the oil drain line. Check for cracks in the
housing of the turbocharger. Ensure that the
compressor wheel can rotate freely.
4. Check for the presence of oil. If oil is leaking from
the back side of the compressor wheel, there is a
possibility of a failed turbocharger oil seal.
The presence of oil may be the result of extended
engine operation at low idle. The presence of oil
may also be the result of a restriction of the line for
the intake air (clogged air filters), which causes the
turbocharger to slobber.
5. Install the air intake pipe and the exhaust outlet
pipe to the turbocharger housing. Ensure that all
clamps are installed correctly and that all clamps
are tightened securely. For more information, refer
to Systems Operation, Testing, and Adjusting,
"Turbocharger - Inspect".
Engine Install with High Pressure
and Low Pressure Turbochargers
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Illustration 89
Typical example
(1) High-pressure turbocharger
(2) Elbow
(3) Low-pressure turbocharger
The engine is equipped with a high-pressure
turbocharger (1) and a low-pressure turbocharger
(3). A regular visual inspection of both turbochargers
is recommended. If the turbocharger fails during
engine operation, damage to the turbocharger
compressor wheel and/or to the engine may occur.
Damage to the turbocharger compressor wheel can
damage the pistons, the valves, and the cylinder
head.
Inspecting
The compressor housing for the turbocharger must
not be removed from the turbocharger for inspection
or removed for the cleaning of the compressor.
1. Ensure that the turbochargers are clean and free
from dirt before removing components for
inspection.
Maintenance Section
Turbocharger - Inspect
g03676654
NOTICE
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