TM-9-2320-272-23-1

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5

SEPTEMBER 2012
TM-9-2320-272-23-1

  TM-9-2320-272-23-1 - Page 974 of 1313

FIELD MAINTENANCE
NO CAB HEAT (COOLANT TEMPERATURE GAUGE READS NORMAL)
INITIAL SETUP:
Tools and Special Tools
Tool Kit, General Mechanic's: Automotive
(Volume 5, WP
0826, Table 1, Item 56)
Personnel Required
(2)
References
TM 9-2320-272-10
Volume 2, WP
0287
Equipment Condition
Vehicle parked and engine shut down.
(TM
9-2320-272-10)
TROUBLESHOOTING PROCEDURE
NO CAB HEAT (COOLANT TEMPERATURE GAUGE READS NORMAL)
NOTE
Conduct these malfunction tests if there is no cab heat and coolant temperature gauge reads
normal. This procedure will check for position of engine coolant shutoff valves, air in personnel
heater system, engine coolant level.
TM 9-2320-272-23-1
0117
0117-1


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