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 183 of 524

TM 5-2330-378-14&P

4-42. MIDDLEWIRINGHARNESSREPLACEMENT(M870A1).

ThisTaskCovers:

a.

Removal

b.

Installation

Initial Setup:

Tools/Test Equipment:

Personnel Required:

Two

- Tool kit, General mechanic's:

automotive

(item 7, Appendix K)

Equipment Conditions:

- Semitrailer unloaded (pare 2-10).

a .

REMOVAL

WARNING

Disconnect

all

outside

power

before

performing

any

maintenance

on the

electrical

system.

Failure

to do so could

result

In serious

Injury

or death.

1

Disconnect two middle clearance light connectors (1) from two middle clearance lights (2) (refer to electrical

schematic,

Appendix K).

2.

Unplug middle wiring harness connector (3) from main wiring harness.

3.

Remove middle wiring harness (4) from clips on frame of semitrailer.

4.

Remove middle wiring harness (4) from semitrailer

(refer to electrical schematic, Appendix K).

2

b.

INSTALLATION

1.

Install middle wiring harness

(4) in semitrailer (referto elec-

trical schematic, Appendix K).

2.

Install middle wiring harness

(4) in clips on frame of semi- 4

trailer.

3.

Plug middle wiring harness connector (3) into main harness.

4.

Connecttwo

middle clearance lightconnectors

(1)to two middle

clearance lights (2).

3

5.

With the aid of an assistant, connect sernitrailerelectrical

connectors to towing vehicle and test middle clearance

lights for properoperation.

FOLLOW-ONTASKS:

-None

4-95