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 732 of 1275

b. Installation

TM 9-2350-311-20-1

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

electrical shock and burns.

NOTE

Wiring of circuit breakers differs between M109A2/M109A3 Howitzers.

1 Install circuit breaker (6), two flat washers (8), two new Iockwashers (9), two screws (7), and two nuts (10).

2 Connect 14 electrical leads (1) at circuit breaker (6).

3 Install circuit breaker panel (5).

4 Install two new Iockwashers (4), two flat washers (3), and two screws (2).

NOTE

FOLLOW-ON MAINTENANCE:

Install driver’s and portable instrument panels (para 8-17)

8-87

WARNIN G