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 407 of 1275

TM9-2350-311 -20-1

CONTINUED FROM STEP C

Place red lead of multimeter in socket A (lead

450) and black lead to ground.

Turn MASTER and BILGE

ON and check for voltage.

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3. Turn MASTER and BILGE

OFF.

PUMP switches

PUMP switches

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Is voltage present?

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Replace bilge pump relay (para 8-30). I

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Go to step G.

CONTINUED FROM STEP B

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E

1. Reconnect engine disconnect bracket-to-

bulkhead wiring harness to bilge pump relay.

2. Disconnect lead 452B from bilge pump circuit

breaker output.

3. Place red lead of multimeter on circuit breaker

output and black lead to ground.

4. Turn MASTER switch ON and check for

voltage.

5. Turn MASTER switch OFF.

Is voltage present?

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Repair or replace lead 452B of bulkhead-

to-headlights/bilge pump wiring harness

(para 8-47).

CONTINUED ON NEXT PAGE

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