Table of Contents
Advertisement
76
Maintenance Section
Turbocharger - Inspect
Inspect the fins for damage. Bent fins may be
repaired. Inspect these items for good condition:
welds, mounting brackets, air lines, connections,
clamps and seals. Make repairs, if necessary.
Turbocharger - Inspect
Periodic inspection and cleaning are recommended
for the turbochargers. Fouling of the turbine wheels
can contribute to loss of engine power and overall
loss of engine efficiency.
If a turbocharger fails during engine operation,
damage to the turbocharger compressor wheel and/
or to the engine may occur. Damage to a
turbocharger compressor wheel could allow parts
from the compressor wheel to enter an engine
cylinder. This debris can damage the pistons, the
valves, and the cylinder head.
For information on inspection of the turbocharger,
refer to "Systems Operation Testing and
Adjusting"Turbocharger - Inspect.
Walk-Around Inspection
Inspect the Engine for Leaks and
for Loose Connections
A walk-around inspection should only take a few
minutes. When the time is taken to perform these
checks, costly repairs and accidents can be avoided.
For maximum engine service life, thoroughly inspect
the engine room before starting the engine. Look for
items such as leaks, loose bolts, loose connections
and trash buildup. Make repairs, as needed.
• The guards must be in the proper place. Repair
damaged guards or replace missing guards.
• Wipe all caps and plugs before the engine is
serviced in order to reduce the chance of system
contamination.
NOTICE
For any type of leak, clean up the fluid. If leaking is
observed, find the source and correct the leak. If
leaking is suspected, check the fluid levels more
often than recommended until the leak is found or
fixed, or until the suspicion of a leak is proved to be
unwarranted.
Accumulated grease and oil on an engine is a fire
hazard. Keep the engine clean. Remove debris and
fluid spills whenever a significant quantity accumu-
lates on the engine.
i09157657
• Ensure that cooling lines are properly clamped.
Check for leaks. Check the condition of all pipes.
• Inspect the water pumps for coolant leaks. Refer
to this manual, "Water Pump - Inspect".
Note: The water pump seal is lubricated by coolant in
the cooling system. It is normal for a small amount of
leakage to occur when the engine cools and the parts
contract.
• Inspect the lubrication system for leaks at the front
crankshaft seal, the rear crankshaft seal, the oil
pan, the oil filters and the valve covers.
NEVER use a flame to check for gas leaks. Use a
gas detector.
An open flame can ignite mixtures of air and fuel.
i02885738
This will cause explosion and/or fire which could
result in severe personal injury or death.
• Check the fuel system for leaks. Look for loose
fuel line clamps.
• Inspect the piping for the air inlet system and the
elbows for cracks and for loose clamps.
• Inspect the wiring and the wiring harnesses for
loose connections and for worn wires or frayed
wires.
• Inspect the ground straps for good connections
and for good condition.
• Check the condition of the gauges. Replace any
gauge that is damaged. Replace any gauge that
can not be calibrated.
• Inspect the exhaust system for leaks. If a leak is
found, make repairs.
Water Pump - Inspect
A failed water pump might cause severe engine
overheating problems. Severe engine overheating
problems may result in cracks in the cylinder heads,
a piston seizure, or other potential damage to the
engine.
SEBU8430-02
NOTICE
i09157640
Advertisement
Table of Contents
