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 904 of 1015

TM 9-2320-272-24-l

3-l98. BRAKE PEDAL (TREADLE) VALVE (M936/A1/A2) REPLACEMENT

THIS TASK COVERS:

a. Removal

b. Installation

INITIAL SETUP:

APPLICABLE MODELS

M986/A1/A2

TOOLS

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

MATERIALS/PARTS

Three locknuts (Appendix D, Item 288)

Antiseize tape (Appendix C, Item 72)

REFERENCES (TM)

TM 9-2320-272-10

TM 9-2320-272-24P

EQUIPMENT CONDlTlON

Parking brake set (TM 9-2320-272-10).

Air reservoirs drained (TM 9-2320-272-10).

Brake pedal removed (para. 3-196).

Protective control box removed (para. 3-115).

GENERAL SAFETY INSTRUCTIONS

Do not disconnect air lines before draining air

reservoirs.

Do not disconnect air lines before draining air reservoirs. Small.

parts under pressure may shoot out with high velocity, causing

injury to personnel.

1.

Disconnect two air lines (2) from brake pedal valve adapters (1).

2.

Disconnect air hoses (4) and (10) from adapters (7) and (9).

3.

Remove adapters (7) and (9) from tee (8).

4.

Remove air hose (6) and adapter (6) from firewall (3).

5.

Remove tee (8) and pipe (13) from firewall (3).

6.

Remove air hose (11) and adapter (12) from firewall (3).

3-540