Perkins 5006A-E23TA Operation And Maintenance Manual page 93

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• Inspect the engine crankcase breather pipe and oil
filler tube for damage. Ensure that the tube is
clean and free from any obstructions. Ice can
cause obstructions in adverse weather conditions.
NOTICE
For any type of leak (coolant, lube, or fuel) clean up
the fluid. If leaking is observed, find the source and
correct the leak. If leaking is suspected, check the flu-
id levels more often than recommended until the leak
is found or fixed, or until the suspicion of a leak is
proved to be unwarranted.
NOTICE
Accumulated grease and/or oil on an engine is a fire
hazard. Remove the accumulated grease and oil. Re-
fer to Operation and Maintenance Manual, "Engine -
Clean" for more information.
• Ensure that the cooling system hoses are correctly
clamped and that the cooling system hoses are
tight. Check for leaks. Check the condition of all
pipes.
• Inspect the water pumps for coolant leaks.
Note: The water pump seal is lubricated by the
coolant in the cooling system. It is normal for a small
amount of leakage to occur as the engine cools down
and the parts contract.
Excessive coolant leakage may indicate the need to
replace a water pump. Refer to Operation and
Maintenance Manual, "Water Pump - Inspect" for
more information. If necessary, consult your Perkins
distributor.
• Inspect the lubrication system for leaks at the front
crankshaft seal, the rear crankshaft seal, the oil
pan, the oil filters, and the rocker cover.
• Inspect the piping for the air intake system and the
elbows for cracks and for loose clamps. Ensure
that hoses and tubes are not contacting other
hoses, tubes, wiring harnesses, and so forth.
• Ensure that the areas around the rotating parts are
clear.
• Inspect the alternator belt and fan drive belts for
cracks, breaks, or other damage.
• Check that the fan and belts safety inspection
guards are secured in place and not damaged.
Replace if necessary. Refer to the OEM
information for any procedures that are required to
install the inspection guards.
• Inspect the fan blades for damage. Refer to the
OEM information for any procedures that are
required to install the fan.
• Inspect the wiring harness for damage.
Belts for multiple groove pulleys must be replaced as
matched sets. If only one belt is replaced, the belt will
carry more load than the belts that are not replaced.
The older belts are stretched. The additional load on
the new belt could cause the belt to break.
Inspect the exhaust system for leaks or damage. If
the exhaust system is equipped with a drain tap,
drain any residual liquid into a suitable container.
Dispose of the waste liquid in accordance with local
regulations and mandates. Refer to the OEM
information for any procedures that are required to
drain the exhaust system.
Water Pump - Inspect
A failed water pump may cause severe engine
overheating problems that could result in the
following conditions:
• Cracks in the cylinder head
• A piston seizure
• Other potential damage to the engine
Note: The water pump seal is lubricated by the
coolant in the cooling system. A normal condition is
that a small amount of leakage to occur as the engine
cools down and parts contract.
Visually inspect the water pumps for leaks. The water
pumps are not serviceable items. Replace a leaking
water pump. Refer to Disassembly and Assembly for
more information.
93
Maintenance Section
Water Pump - Inspect
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