TM-9-2320-365-20-1
M1078 SERIES, 2 1/2-TON, 4 X 4, LIGHT MEDIUM TACTICAL VEHICLES (LMTV)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 1 OF 5
FEBRUARY 2006
CHANGE 3
TM-9-2320-365-20-1 - Page 226 of 1760
d1. ENGINE OVERHEATS (CONT)
TM 9-2320-365-20-1
KNOWN INFO
TEST OPTIONS
Visual Inspection
REASON FOR QUESTION
POSSIBLE PROBLEMS
3.
NO
Coolant level OK.
Radiator core free of debris.
WATER TEMP gage OK.
Radiator OK.
Upper and lower coolant hoses
OK.
Radiator cap OK.
Radiator overflow tank and
hoses OK.
Cooling system pressure OK.
Is radiator fan shroud secure
and free from damage?
If damage is present, radiator
fan shroud is faulty.
YES
Tighten radiator fan shroud
hardware or replace radiator
fan shroud (para 6-4).
Faulty radiator fan shroud.
Faulty water pump.
Faulty thermostat.
Faulty fan clutch.
2-134
Change 2
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