TM-9-2320-366-20-1
M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 1 OF 5
FEBRUARY 2006
CHANGE 3
TM-9-2320-366-20-1 - Page 266 of 1824
KNOWN INFO
TEST OPTIONS
NO
YES
d1. ENGINE OVERHEATS (CONT)
Does fan clutch spin freely
without air applied?
TM 9-2320-366-20-1
6.
POSSIBLE PROBLEMS
Notify DS Maintenance.
Replace fan clutch
(para 6-14).
2-146
Change 2
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.
Radiator fan shroud OK.
Water pump OK.
Thermostat OK.
Faulty fan clutch.
REASON FOR QUESTION
If fan clutch spins freely
without air pressure applied,
fan clutch is faulty.
Visual Inspection
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