TM-9-2320-272-24-4

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 4 OF 4

JUNE 1998

TM-9-2320-272-24-4 - Page 586 of 836

TM 9-2320-272-24-4

5-93. BLACKOUT BYPASS WIRING HARNESS MAINTENANCE

THIS TASK COVERS:

a. Removal

b. Repair

c. Installation

INITIAL SETUP:

APPLICABLE MODELS

REFERENCES (TM)

M934/A1/A2

TM 9-2320-272-10

TOOLS

TM 9-2320-272-24P

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

EQUIPMENT CONDITION

l

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

l

Battery ground cabled disconnected (para. 3-126)

a. Removal

NOTE

Tag wires for installation

1.

Remove six screws (1) and cover (2) from load center (6).

2.

Remove two setscrews (10) and wires (3) from 3-pole circuit breaker (5).

3.

Remove screw (8) and wire (9) from 30 amp circuit breaker (7).

4.

Remove two screws (13) and cover (14) from switch (11).

5.

Remove two screws (12) and switch (11) from van body (16).

6.

Loosen three screws (15) and remove wires (3) from switch (11).

7.

Remove wiring harness (4) from van body (16).

b. Repair

For wiring harness repair, refer to para. 3-131.

c. Installation

1.

Position wiring harness (4) on van body (16).

2.

Install three wires (3) on switch (11) and tighten three screws (15).

3.

Install switch (11) on van body (16) with two screws (12).

4.

Install cover (14) on switch (11) with two screws (13).

5.

Install wire (9) on 30 amp circuit breaker (7) with screw (8).

6.

Install two wires (3) on 3-pole circuit breaker (5) with two setscrews (10).

7.

Install cover (2) on load center (6) with six screws (1).

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