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 TM 9-2320-366-20-1
d1. ENGINE OVERHEATS (CONT)
KNOWN INFO
TEST OPTIONS
6.
Visual Inspection
Coolant level OK.
Radiator core free of debris.
Does fan clutch spin freely
REASON FOR QUESTION
WATER TEMP gage OK.
without air applied?
Radiator OK.
If fan clutch spins freely
Upper and lower coolant hoses
without air pressure applied,
OK.
fan clutch is faulty.
Radiator cap OK.
Radiator overflow tank and
hoses OK.
Cooling system pressure OK.
NO
Radiator fan shroud OK.
Water pump OK.
Thermostat OK.
POSSIBLE PROBLEMS
Faulty fan clutch.
Notify DS Maintenance.
YES
Replace fan clutch
(para 6-14).
2-146
Change 2
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