TM-9-2350-311-20-2

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS

DECEMBER 1993

TM-9-2350-311-20-2 - Page 492 of 828

TM 9–2350–311–20–2

8–68

Change 2

8–14 POWER RELAY BOX TO INTERCOM POWER SUPPLY LEAD ASSEMBLY

— CONTINUED

a.

Removal

1

Disconnect connector (1), wire 148, from power relay box assembly (2).

2

Remove hex head bolt (3) securing ground lead (4), wire 148, to rear of cab.

3

Disconnect connector (5) of wire 148 from connector (6).

4

Remove four machine screws (7), four flat washers (8), and four hex nuts (9) securing connector (6) to

mounting bracket (10).

5

Remove two harness clamps (11), two hex head screws (11.1), two lockwashers (11.2), two flat washers

(11.3), and power relay box to intercom power supply lead assembly (12) from cab. Discard lockwashers.

6

Deleted.

b.

Disassembly/Assembly

See repair procedures for harnesses, plugs, and terminals (para 8–1).

1

6

4

148

148

5

6

3

4

9

8

7

148

1

2

10