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 527 of 1015

3-55. AIR

TM 9-2320-272-24-1

1.

2.

3.

4.

5.

Install air compressor elbow (22) on air compressor (23).

Install engine oil cooler elbow (18) on engine oil cooler (19).

Install return tube (12) on compressor elbow (22) with new bushing (21) and flare nut (20). Do not

tighten flare nut (20).

Connect return tube (12) on engine oil cooler elbow (18) with new bushing (17) and flare nut (16).

Do not tighten flare nut (16).

Install coolant return tube (12) on support bracket (11) with clamp (10), washers (9) and (15), new

lockwasher (14), and nut (13). Tighten nut (13).

6.

Tighten flare nuts (16) and (20).

NOTE

Male pipe threads must be wrapped with antiseize tape before

installation.

FOLLOW-ON TASKS: • Fill cooling system to proper level (para. 3-53).

• Start engine (TM 9-2320-272-10) and check for coolant leaks.

3-143