TM-9-2350-311-20-1

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

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 797 of 1275

TM 9-2350-311-20-1

8-58 lNTERCOM/TELEPHONE WIRING HARNESS AND SLIP RING TELEPHONE FEED

WIRING HARNESS — CONTINUED

b. Installation

1

2

3

4

5

6

WARNIN G

Ensure MASTER switch is OFF when working on hull electrical system to avoid

electrical shocks and bums.

NOTE

Wiring harness contains telephone leads L1 and L2 from segment board to hull

terminals.

Install wire ends L1 and L2 (6 and 7) through hull.

Install two wires L1 and L2 (6 and 7) and two nuts (32).

Install two spacers (37), plate (38), and two plate screws (36).

On M109A4/M109A5 Howitzers, install guard (35), four new Iockwashers (34), and four screws (33).

Install five wires 41,42,43, L1, and L2 (1, 2,3,6, and 7) and five screws (26) at segment board (22).

Install ground (8), flat washer (28), and screw (27).

8-152