TM-9-2330-238-14

CHASSIS, SEMITRAILER: 6-TON, 4-WHEEL M295A1; SEMITRAILER, VAN: EXPANSIBLE, 6-TON, 4-WHEEL M313; SEMITRAILER, VAN: SHOP, FOLDING SIDES, 6-TON, 4-WHEEL M447 AND M447C; SEMITRAILER, VAN: REPAIR PARTS, SHOP EQUIPMENT, 6-TON, 4-WHEEL M749; SEMITRAILER, VAN: REPAIR PARTS STORAGE, 6-TON, 4-WHEEL M750

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL

JULY 1992

TM-9-2330-238-14 - Page 132 of 462

4-34

TM 9-2330-238-14

4-24. BLACKOUT LIGHT ELECTROMAGNETIC RELAY REPLACEMENT.

This Task Covers:

a.

Removal

b.

Installation

Initial Setup:

Equipment Conditlons:

Materials/Parts:

●

External power supply cable disconnected.

●

Marker tags (item 15, Appendix E)

●

Circuit breakers removed (para 4-23).

●

Three lockwashers

Tools/Test Equipment:

.

General mechanic’s tool kit

NOTE

All blackout Iight electromagnetic relays are replaced In the same manner.

a.

REMOVAL

NOTE

. To remove M313 (Late Model), M447, M447C, or M750 blackout light electro-

magnetic relay, perform steps 1 and 2.

●

T

O

remove M313 (Early Model) blackout light electromagnetic relay, perform steps 1

and 3.

1.

Disconnect and tag electrical leads (2) from blackout light electromagnetic relay (5).

2.

Remove two screws (3) and blackout light electromagnetic relay (5) from circuit breaker junction box (l).

3.

Remove three screws (3), lockwashers (4) and blackout light electromagnetic relay (5) from circuit breaker

junction box (l). Discard lockwashers.

b.

INSTALLATION

NOTE

• T

O

install M313 (Late Model), M447, M447C, or M750 blackout light electromagnetic

relay, perform steps 1 and 3.

• install M313 (Early Model) blackout light electromagnetic relay, perform steps 2

and 3.

1.

Position blackout light electromagnetic relay (5) in place in circuit breaker junction box (1 ) and secure with two

screws (3).