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 427 of 1275

TM9-2350-311-20-1

CONTINUED FROM STEP A

n

B

1. Reconnect lead 76B to relay oil pressure

switch.

2. Disconnect in-tank fuel pump lead assembly

from relay and lead 76B from bulkhead-to-

portable instrument panel wiring harness.

3. Place a jumper wire from socket B (lead 10)

to socket D (lead 76B).

4. Place red lead of multimeter

in lead 76B and

black lead to ground.

5. Turn MASTER switch ON and check for

voltage.

6. Turn MASTER switch OFF.

Is voltage present?

I

Go to step E.

*

C

1. Disconnect battery ground leads.

2. Disconnect bulkhead-to-portable instrument

panel wiring harness from driver’s bulkhead.

3. With jumper wire in place from step B, place

a jumper wire from pin B to socket B (lead

400-459B).

4. Place red lead of multimeter on pin D (lead

76B) and black lead to ground.

5. Reconnect battery ground leads.

6. Turn MASTER switch ON and check for

voltage.

7. Turn MASTER switch OFF.

Is voltage present?

I

I

1

Repair or replace lead 766 of bulkhead-to-portable

instrument panel wiring harness (para 8-49).

\

1

CONTINUED ON NEXT PAGE

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