TM-9-2320-272-24-2

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

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 2 OF 4

JUNE 1998

TM-9-2320-272-24-2 - Page 423 of 991

3-412. AIR

TM 9-2320-272-24-2

21.

Install air dryer (2) on mounting bracket (11) with four washers (23), screws (22), washers (261, and

new locknuts (27).

22.

Install line (24) on elbow (3).

23.

Install tube (23) on elbow (5).

24.

Install screw (18), new lockwasher (19), ground wire (20), and new locknut (21) on right-side

frame rail (17).

25.

Install new tiedown strap (30) on tube (31) and ground wire (20).

26.

Install tube (31) on elbow (9).

NOTE

Perform steps 27 and 28 for M927/A1/2, M928/A1/A2, and

M934/A1/A2 vehicles.

27.

Install adapter (35) on wet reservoir adapter (36).

28.

Install tube (31) on adapter (35).

NOTE

Perform steps 29 through 31 for M923/A1/A2 and M925/A1/A2

vehicles.

29.

Install bushing (33) on wet reservoir adapter (34).

30.

Install elbow (32) on bushing (33).

31.

Install tube (31) on elbow (32).

32.

Connect wire (28) to thermostat connector (29) on air dryer (2).

FOLLOW-ON TASKS:

•

Connect battery ground cables (para. 3-126).

• Start engine, allow air system to reach normal operating pressure, and check air

system for leaks (TM 9-2320-272-10).

3-1031