TM-9-2320-260-34-2

TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 2 OF 2

JULY 1994

TM-9-2320-260-34-2 - Page 321 of 863

TM 9-2320-260-34-2

15-70. BLACKOUT BYPASS WIRING HARNESS REPLACEMENT

THIS TASK COVERS:

a. Removal

b. Installation

INITIAL SETUP

APPLICABLE MODELS

M820, M820A2

TEST EQUIPMENT

Multimeter (Appendix B, Item 115)

REFERENCES (TM)

TM 9-2320-260-10

TM 9-2320-260-20

TM 9-2320-260-34P-2

EQUIPMENT CONDITION

TOOLS

•

General mechanic’s tool kit

(Appendix B, Item 1)

•

Tool kit, electrical (Appendix B, Item 106)

External power source disconnected

(TM 9-2320-260-10).

Battery ground cable disconnected

(TM 9-2320-260-20).

MATERIALS/PARTS

Safety wire (Appendix D, Item 372)

Electrical tape (Appendix C, Item 51)

CAUTION

Use care when replacing wiring harness. Excessive snagging or

pulling may damage wiring harness.

Tag wires, cables, and leads for installation.

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

2. Remove two setscrews (10) and wires (3) from relay (5).

3. Remove screw (8) and wire (9) from 20-amp circuit breaker (7).

4. Remove two screws (16) and cover ( 15) from switch (13).

5. Remove two screws (14) and Pull switch (13) away from van body (11).

6. Loosen three screws (12), remove three wires (17) from switch (13), and remove switch (13) from

van body (11).

NOTE

•

Safety wire will be used to install new wiring harness. Do not

cut safety wire from spool until wiring harness has been pulled

through and proper length has been obtained.

Ž

Safety wire must be attached to wires with electrical tape.

7. Remove blackout bypass wiring harness (4) from van body (11).

15-260

NOTE