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TM 9-2320-364-20-2
2-1084
1. ENGINE OVERHEATS (WATER TEMP GAGE CONTINUOUSLY READS OVER
230F [110C]) (CONT).
Coolant hoses and clamps OK.
Radiator cooling fins OK.
Fan operates at low speed.
Fan operates at high speed.
Thermostat(s) OK.
Water temperature gage OK.
Cooling assembly OK.
Water temperature switch faulty.
Water temperature sensor
faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Resistance test.
STE/ICE-R #91.
If temperature switch and
temperature sensor are faulty,
fan will not operate at high
speed.
YES
NO
Fault not corrected.
Notify DS
Maintenance.
9.
Is continuity measured on
temp switch connector
terminals A and B with engine
temperature at 230 F?
Replace temperature
switch (Para 7-80).
Go to Step 10 of this
Fault.
WARNING
Read WARNING
on Page 2-1085
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