TM-5-2330-378-14-P

SEMITRAILER, LOWBED: 40 TON CONSTRUCTION EQUIPMENT TRANSPORTER M870 AND M870A1

TECHNICAL MANUAL; OPERATOR'S, UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)

JUNE 1999

TM-5-2330-378-14-P - Page 187 of 524

TM 5-2330-378-14&P

4-44.

MAINWIRINGHARNESSREPLACEMENT

(M870A1)(continued).

3.

Removenut(5),

lockwasher (6),washer (7), loopclamp(8), and two ground wires (9)from bolt(IO)inbox

cover

(2). Discard lockwasher.

4.

Disconnectplug (1 1)between mainwiring harness (12)and rearwiring harness (refer to electrical schematic,

Appendix K).

5.

Disconnectplug

(13) between main wiring harness (112)and middlewiring

harness (referto electrical schematic,

Appendix K).

6.

Remove main wiring harness (12) from semitrailer (refer to electrical schematic, Appendix K).

b.

INSTALLATION

I .

Install main wiring harness (112)on semitrailer (refer to electrical schematic, Appendix

K).

2.

Install two ground wires (9) on bolt (110)

in box cover (2). Install loop clamp (8), washer (7), new lockwasher(6),

and nut (5) on bolt (10).

3.

Connect seven wires (3) to eight-point terminal strip (4).

4.

Install box cover (2) on semitrailer and secure with two bolts (1).

5.

Connect plug (13) between main wiring harness (12) and middle wiring harness (referto electrical schematic,

Appendix K).

6.

Connect plug (111)between main wiring harness (112)and rear wiring harness (refer to electrical schematic,

Appendix K).

7.

With the aid of an assistant, connect semitrailer electrical connectorto

towing vehicle and test for lights for proper

operation.

FOLLOW-ON TASKS:

12

None

4-99