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 392 of 991

TM 9-2320-272-24-2

3-406. SWINGFIRE HEATER AND MOUNTING BRACKET REPLACEMENT

THIS TASK COVERS:

a. Removal

b. 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

MATERIALS/PARTS

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

Seventeen lockwashers (Appendix D, Item 374)

Two locknuts (Appendix D, Item 291)

Six locknuts (Appendix D, Item 313)

a. Removal

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

Turn three turnbuttons (22) and eight turnbuttons (4) to release cover (23) from right front

fender (18) and bracket (7). Position cover (23) to gain access to hardware.

Open clamp (16) on bracket (20).

Remove clamp (17) from bracket (7).

Remove swingfire heater (21) from bracket (7).

Remove six nuts (13), lockwashers (12), and screws (1) from right front fender (18) and bracket (7).

Discard lockwashers (12).

Remove three nuts (3), lockwashers (2), screws (5), and cover (23) from right front fender (18) and

bracket (7). Discard lockwashers (2).

Remove four locknuts (15), washers (14), screws (19), and bracket (20) from right front fender (18).

Discard locknuts (15).

Remove two locknuts (11), washers (10), screws (6), and bracket (7) from right front fender (18).

Discard locknuts (11).

Remove three turnbuttons (22) from right front fender (18).

Remove six nuts (9), lockwashers (8), and turnbuttons (4) from right front fender (18). Discard

lockwashers (8).

Remove two nuts (9), lockwashers (8), and turnbuttons (4) from bracket (7). Discard lockwashers (8).

3-1000