• 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.
• Ensure that the areas around the rotating parts are
clear.
• Inspect the alternator belts and any accessory
drive belts for cracks, breaks, or other damage.
• 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.
High-Pressure Fuel Lines
Contact with high pressure fuel may cause fluid
penetration and burn hazards. High pressure fuel
spray may cause a fire hazard. Failure to follow
these inspection, maintenance and service in-
structions may cause personal injury or death.
After the engine has stopped, wait 10 minutes in
order to allow the fuel pressure to be purged from the
high-pressure fuel lines before any service or repair
is performed. The 10 minute wait will also allow static
charge to dissipate from the low-pressure fuel
system. If necessary, perform minor adjustments.
Repair any leaks from the low-pressure fuel system
and from the cooling, lubrication, or air systems.
Replace any high-pressure fuel line that has leaked.
Refer to Disassembly and Assembly Manual, “Fuel
Injection Lines - Install”.
If you inspect the engine in operation, always use the
proper inspection procedure to avoid a fluid
penetration hazard. Refer to Operation and
Maintenance Manual, “General hazard Information”.
Visually inspect the high-pressure fuel lines for
damage or signs of fuel leakage. Replace any
damaged high-pressure fuel lines or high-pressure
fuel lines that have leaked.
Ensure that all clips on the high-pressure fuel lines
are in place and that the clips are not loose.
• Inspect the rest of the fuel system for leaks. Look
for loose fuel line clamps.
• Drain the water and the sediment from the fuel
tank on a daily basis.
• Inspect the wiring and the wiring harnesses for
loose connections and for worn wires or frayed
wires. Check for any loose tie-wraps or missing
tie-wraps.
• Inspect the ground strap for a good connection
and for good condition.
• Disconnect any battery chargers that are not
protected against the current drain of the starting
motor. Check the condition and the electrolyte
level of the batteries, unless the engine is
equipped with a maintenance free battery.
• Check the condition of the gauges. Replace any
gauges that are cracked. Replace any gauge that
cannot be calibrated.
Engine Aftertreatment
Check that all clamps, clips, and tie-wraps are secure
and in good condition.
i01907756
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. It is normal for a small
amount of leakage to occur as the engine cools down
and parts contract.
Visually inspect the water pump for leaks. Renew the
water pump seal or the water pump if there is an
excessive leakage of coolant. Refer to the
Disassembly and Assembly Manual, “Water Pump -
Remove and Install” for the disassembly and
assembly procedure.
SEBU9075-03
101
