Perkins 1104D Operation And Maintenance Manual page 102

102
Maintenance Section
V-Belts - Inspect/Adjust/Replace
Removal and Installation
For options regarding the removal, installation, and
replacement, consult your Perkins dealer or your
Perkins distributor. Refer to the Disassembly and
Assembly, "Turbocharger - Remove and
Turbocharger - Install" and Systems Operation,
Testing and Adjusting, "Turbocharger - Inspect" for
further information.
Inspecting
NOTICE
The compressor housing for the turbocharger must
not be removed from the turbocharger for inspection
or removed for the cleaning of the compressor.
1. Remove the pipe from the turbocharger exhaust
outlet and remove the air intake pipe 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.
2. 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.
3. 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.
4. Inspect the bore of the housing of the turbine outlet
for corrosion.
5. Fasten 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.
V-Belts - Inspect/Adjust/
Replace
Inspection
Illustration 68
Arrangement for the V-belts
To maximize the engine performance, inspect the
belts for wear and for cracking. Replace belts that are
worn or damaged.
For applications that require multiple drive belts,
replace the belts in matched sets. Replacing only one
belt of a matched set will cause the new belt to carry
more load because the older belt is stretched. The
additional load on the new belt could cause the new
belt to break.
If the belts are too loose, vibration causes
unnecessary wear on the belts and pulleys. Loose
belts may slip enough to cause overheating.
To accurately check the belt tension, a suitable
gauge should be used.
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