Walk-Around Inspection; Inspect The Tube Of The Crankcase Breather - Perkins 1206F-E70TA Operation And Maintenance Manual

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Maintenance Recommendations

Walk-Around Inspection

Engine Installed with High Pressure
Turbocharger and Low Pressure
Turbocharger
Illustration 102
The engine is equipped with a high-pressure
turbocharger (1) and a low-pressure turbocharger (4).
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.
1. Ensure that the turbochargers are clean and free
from dirt before removing components for
inspection.
2. Remove the pipe from the high-pressure
turbocharger exhaust outlet and remove the air
intake pipe (3 ) to the turbocharger. 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. Remove elbow (2) and check for the presence of
engine oil.
4. 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.
5. 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.
6. Inspect the bore of the housing of the turbine outlet
for corrosion.
7. 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".
Walk-Around Inspection
Inspect the Tube of the Crankcase
g03089316
Breather
Illustration 103
Typical example
Inspect the breather tube (1) for damage. Ensure that
the outlet (2) is clean and free from any obstructions.
Ice can cause obstructions in adverse weather
conditions.
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