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 389 of 1275

TM 9-2350-311-20-1

CONTINUED FROM STEP E

1.

2.

3.

4.

5.

6.

Reconnect lead 10 of power lead assembly to

accessory control box.

Remove accessory control box cover (para

8-20).

Disconnect lead 10A from circuit breaker

input.

Place red lead of multimeters in lead 10A and

black lead to ground.

Turn MASTER switch ON and check for

voltage.

Turn MASTER switch OFF.

I

Is voltage present?

Repair or replace lead 10/10A of

accessory control box wiring harness

(para 8-53).

1. Reconnect lead 10A to circuit breaker input.

2. Disconnect lead 400A from circuit breaker

output.

3. Place red lead of multimeters in circuit breaker

output and black lead to ground.

4. Turn MASTER switch ON and check for

voltage.

5. Turn MASTER switch OFF.

I

Is voltage present?

Replace circuit breaker (para

CONTINUED ON NEXT PAGE

3-289

8-20) .