TM-9-2320-272-24-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 4 OF 4
JUNE 1998
TM-9-2320-272-24-4 - Page 668 of 836
TM 9-2320-272-24-4
Section II. MAINTENANCE ALLOCATION CHART (Contd)
Number
04
0401
05
0501
0502
0503
0504
0505
(3)
Maintenance
Unit
Component/Assembly
Function
c
O
EXHAUST SYSTEM
Pipe, Exhaust and Tail
Inspect
0.2
Replace
2.0
2 thru 5
Muffler
Inspect
0.2
Replace
2.0
2 thru 5
Shield, Vertical Exhaust
Inspect
0.1
Replace
1.0
2 thru 5
COOLING SYSTEM
Radiator
Inspect
0.2
0.2
Service
0.3
Replace
2.0
2 thru 5
Repair
3.0
6 thru 9
Tank, Surge
Inspect
0.2
Service
0.1
02
Replace
1.0
2 thru 5
Radiator Hoses
Inspect
0.2
Replace
0.5
2 thru 5
Canister, Thermostat*
Inspect
0.1
Replace
0.5
Shroud, Radiator Fan
Inspect
0.1
Replace
1.0
2 thru 5
Water Manifold and Headers Inspect
0.5
Replace
1.0
6 thru 9
Coolant Lines, Air
Inspect
0.5
Compressor
Replace
1.0
6 thru 9
Actuator, Fan Clutch
Inspect
0.2
Replace
0.4
2 thru 9
Thermostats and Housing
Inspect
0.1
0.2
Replace
1.0
2 thru 5
Pump, Water*
Inspect
0.1
Replace
1.5
2 thru 5
Pump, Water
Inspect
0.5
Replace
1.0
6 thru 9
Repair
1.5
6 thru 9
Belt, Water Pump
Inspect
0.1
0.1
Adjust
0.3
2 thru 5
Replace
0.5
2 thru 5
Fan Assembly
Inspect
0.1
0.1
Replace
1.0
2 thru 5
Clutch, Fan Drive
Inspect
0.2
Replace
0.5
2 thru 5
Repair
1.0
6 thru 9
Pulley, Belt Tensioner*
Inspect
0.1
Replace
0.5
2 thru 5
(4)
Maintenance Category
(5)
(6)
Tools and
Equipment
Remarks
A
E
A
A
A
A
A
A
A
*(M939A2 only)
B-10
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