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 854 of 1015

TM 9-2320-272-24-1

3-176. PARKING BRAKESHOES REPLACEMENT

THIS TASK COVERS:

a. Removal

b. Installation

INITIAL SETUP

APPLICABLE MODELS

REFERENCES (TM)

All

TM 9-2320-272-10

SPECIAL TOOLS

TM 9-2320-272-24P

Brake repair pliers (Appendix E, Item 20)

EQUIPMENT CONDITION

TOOLS

Wheels chocked (TM 9-2320-272-10).

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

Transfer case-to-forward rear axle propeller shaft.

removed (para. 3-150 or 3-151).

Torque wrench (Appendix E, Item 144)

NOTE

Parking brakeshoes should be replaced when parking brake lever

full travel is over 2.0 in. (5.1 cm).

1.

Remove thrust nut (6) and washer (5) from transfer output shaft (1).

2.

Remove parking brakedrum (3) and transfer output shaft flange (4) from transfer output shaft (1).

3.

Remove transfer output shaft flange (4) from parking brakedrum (3).

4.

Remove eight studs (2) from parking brakedrum (3).

5.

Using brake repair pliers, remove two brakeshoe return springs (8) from parking brakeshoes (9).

6.

Remove two parking brakeshoes (9) and actuating plate (10) from brakeshoe backing plate (7).

3-490