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 860 of 1015

TM 9-2320-272-24-1

3-178. WHEEL BRAKEDRUM DUSTCOVERS REPLACEMENT

THIS TASK COVERS:

a. Front Wheel Dustcovers Removal

c. Front Wheel Dustcovers Installation

b. Rear Wheel Dustcovers Removal

d. Rear Wheel Dustcovers Installation

INITIAL SETUP:

APPLICABLE MODELS

REFERENCES (TM)

All

TM 9-2320-272-10

TOOLS

TM 9-2320-272-24P

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

EQUIPMENT CONDITION

MATERlALS/PARTS

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

Eight lockwashers (Appendix D, Item 365)

Left and right front brakedrum dustcovers are replaced basically

the same. This procedure covers left front and rear brakedrum

dustcovers.

1.

Remove four screws (1), lockwashers (2), and dustcovers (3) and (5) from left front brake assembly (4).

Discard lockwashers (2).

2.

Remove four rubber plugs (6) from dustcovers (3) and (5).

1.

Remove four screws (12), lockwashers (10), and two dustcovers (7) from left rear brake assembly (11).

Discard lockwashers (10).

2.

Remove six rubber plugs (8) and two plastic plugs (9) from two dustcovers (7).

1.

Install four rubber plugs (6) on dustcovers (3) and (5).

2.

Install dustcovers (3) and (5) on left front brake assembly (4) with four new lockwashers (2) and

screws (1).

1.

Install six rubber plugs (8) and two plastic plugs (9) on two dustcovers (7).

2.

Install two dustcovers (7) on left rear brake assembly (11) with four new lockwashers (10) and

screws (12).

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