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 546 of 991

TM 9-2320-272-24-2

3-445. HYDRAULIC RESERVOIR SHUTOFF MODIFICATION KIT REPLACEMENT

THIS TASK COVERS:

a. Removal

b. Installation

APPLICABLE MODELS

M936/A1/A2

TOOLS

General mechanic’s tool kit (Appendix E, Item 1)

Torque wrench (Appendix E, Item 146)

MATERIALS/PARTS

Two O-rings (Appendix D, Item 489)

O-ring (Appendix D, Item 490)

Sealing compound (Appendix C, Item 63)

REFERENCES (TM)

LO

9-2320-272-12

TM

9-2320-272-20

TM

9-2320-272-24P

EQUIPMENT CONDITION

Battery ground cables disconnected (para. 3-1261.

Forward deck plate removed (para. 3-392).

Hydraulic oil reservoir drained (LO 9-2320-272-12).

GENERAL SAFETY INSTRUCTIONS

Directional arrow on check valve must point toward

hydraulic reservoir. Failure may result in personnel

injury and damage to equipment.

NOTE

Have drainage container ready to catch oil.

1.

Remove hose assembly (1) from check valve (10) and adapter (11).

2.

Remove check valve (10), O-ring (9), and adapter assembly (8) from adapter (7). Discard O-ring (9).

3.

Remove four screws (2), washers (3), two swivel flanges (4), adapter (7), and O-ring (6) from front

winch pump outlet port (5). Discard O-ring (6).

NOTE

From under wrecker pull hose assembly far enough to provide

clearance for check valve removal.

4.

Disconnect hose assembly (13) from check valve (14).

5.

Remove adapter assembly (15) and check valve (14) from elbow (12).

3-1154