• Check the condition of the gauges. Replace any
gauges that are cracked. Replace any gauge that
cannot be calibrated.
Engine Aftertreatment
Check the condition of the coolant lines, Diesel
Exhaust Fluid (DEF) lines, and electrical
connections. Check that all clamps, clips, and tie-
wraps are secure and in good condition. Check that
the DEF filler cap is secure and that the cap is clean
and free from dirt.
Check the level of DEF in the tank is sufficient for
operational purpose. If necessary fill the tank.
i03570653
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
Illustration 91 g01904773
(A) Weep hole
(B) Vent hole
Note: The water pump seals are lubricated by the
coolant in the cooling system. It is normal for a small
amount of leakage to occur. Refer to illustration 91
for the position of the weep hole and the vent hole.
Visually inspect the water pump for leaks.
Note: If engine coolant enters the engine lubricating
system the lubricating oil and the engine oil filter must
be replaced. This will remove any contamination that
is caused by the coolant and this will prevent any
irregular oil samples.
The water pump is not a serviceable item. In order to
install a new water pump, refer to the Disassembly
and Assembly Manual, “Water Pump - Remove and
Install”.
136
SEBU9063-07
Maintenance Section
Water Pump - Inspect
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