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 460 of 828

TM 9–2350–311–20–2

8–36

8–7

CAB TRAVERSING MECHANISM HARNESS — CONTINUED

a.

Removal — Continued

6

Remove wires 819B (1) and 825A (7) from sockets G (11) and C (12) of connector (9) (para 8–1).

b.

Disassembly/Assembly

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

c.

Testing

Using multimeter, test cab traversing mechanism harness for continuity through all plugs and connectors.

d.

Installation

1

Install wires 819B (1) and 825A (7) in sockets G (11) and C (12) at connector (9). See information on how to

assemble connector (para 8–1).

2

Connect connector (9) to gunner’s selector switch box assembly (10).

3

Connect wire 825A (7) to solenoid valve connector (8).

NOTE

Refer to steps 4 and 5 to connect wire 819B on M109A2/M109A3 howitzers. Refer to step 6 to con-

nect wire 819B on M109A4/M109A5 howitzers.

4

Install hex nut (3), flat washer (4), and wire 819B (1) on electrical contact assembly (5).

5

Connect wire 819B (1) to quick-disconnect (2).

6

Install wire 819B (1) on top of clutch valve (6).

12

825A

625A

645

819B

100

GROUND

138

147

623

1

11

7