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 652 of 1015

3-105. CIRCUIT

TM 9-2320-272-24-1

THIS TASK COVERS:

a. Removal

b. Installation

INITIAL SETUP:

APPLICABLE MODELS

All

TOOLS

REFERENCES (TM)

TM 9-2320-272-10

TM 9-2320-272-24P

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

EQUIPMENT CONDITION

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

Hood raised and secured (TM 9-2320-272-10).

Battery ground cables disconnected (para. 3-126).

NOTE

Perform steps 1 and 2 to remove circuit breakers located on

engine firewall.

Perform steps 3 and 4 to remove circuit breakers located behind

instrument panel and above steering column.

Tag wires for installation

1.

Disconnect wires (4) and (5) from circuit breaker (2).

2.

Remove two screws (3) and circuit breaker (2) from firewall (1).

3.

Disconnect wires (6) and (7) from circuit breaker (9).

4.

Remove two screws (10) and circuit breaker (9) from instrument panel brace (8).

NOTE

Perform steps 1 and 2 to install circuit breakers on engine

firewall.

Perform steps 3 and 4 to install circuit breakers behind

instrument panel.

1.

Install circuit breaker (2) on firewall (1) with two screws (3).

2.

Connect wires (5) and (4) to circuit breaker (2).

3.

Install circuit breaker (9) on instrument panel brace (8) with two screws (10).

4.

Connect wires (7) and (6) to circuit breaker (9).

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