TM-9-2320-272-24-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4
JUNE 1998
TM-9-2320-272-24-1 - Page 938 of 1015
TM 9-2320-272-24-1
3-206. AIR COMPRESSOR AND LINES (M939A2) REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
M939A2
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
Torque wrench (Appendix E, Item 144)
Four bushings (Appendix D, Item 21)
Gasket (Appendix D, Item 162)
Two locknuts (Appendix D, Item 289)
Gasket (Appendix D, Item 163)
Antiseize tape (Appendix C, Item 72)
PERSONNEL REQUIRED
TWO
REFERENCES (TM)
TM 9-2320-272-10
TM 9-2320-272-24P
EQUIPMENT CONDITION
l
Air reservoirs drained (TM 9-2320-272-10).
l
Coolant drained (para. 3-53).
a. Removal
1.
2.
3.
4.
5.
6.
7.
Remove clamp (5) and hose (6) from power steering pump (3).
Disconnect supply line (4) from power steering pump (3).
Remove two screws (2), washers (1), power steering pump (3), and gasket (8) from air compressor (7).
Discard gasket (8).
Disconnect air outlet tube (26) from elbow (27).
Remove air governor tube (9) from elbow (28).
Remove water outlet tube (19) and two bushings (14) from elbow (15) and air compressor (7).
Discard bushings (14).
Remove water inlet tube (18) and two bushings (17) from elbow (16) and air compressor (7). Discard
bushings (17).
MATERIALS/PARTS
8.
Remove elbows (15) and (16) from engine block (20).
9.
Remove screw (21) and air inlet tube (13) from engine block (20).
10.
Loosen two hose clamps (10) and remove air inlet tube (13) from air inlet connector (24).
11.
Loosen clamp (12) and remove air inlet tube (13) from adapter (11).
12.
Remove adapter (11) from engine block (20).
13.
Remove oil supply hose (23) from fitting (25) and elbow (22).
14.
Remove elbow (22) from engine block (20).
3-574
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