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

  TM-9-2320-366-20-1 - Page 264 of 1824

d1. ENGINE OVERHEATS (CONT)
KNOWN INFO
KNOWN INFO
TEST OPTIONS
YES
NO
NO
YES
POSSIBLE PROBLEMS
Is water pump secure
and free from damage?
WARNING
Read WARNING
on following page.
Tighten water pump
hardware or replace water
pump (para 6-12).
Does thermostat operate
properly?
TM 9-2320-366-20-1
Replace thermostat
(para 6-5).
2-144
Change 2
POSSIBLE PROBLEMS
4.
5.
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.
Faulty water pump.
Faulty thermostat.
Faulty fan clutch.
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.
Charge air cooler OK.
Water pump OK.
Faulty thermostat.
Faulty fan clutch.
TEST OPTIONS
REASON FOR QUESTION
Visual Inspection
If damage is present, water
pump is faulty.
If thermostat does not operate
properly, thermostat is faulty.
REASON FOR QUESTION
Visual Inspection


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