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 409 of 1275

TM 9-2350-311-20-1

H

G

1

“

2.

3.

4.

5.

Reconnect engine disconnect bracket-to-

bulkhead wiring harness to bilge pump relay.

Disconnect lead 450 from BILGE PUMP

switch output.

Place red lead of multimeter in BILGE PUMP

switch output and black lead to ground.

Turn MASTER and BILGE PUMP switches

ON.

Turn MASTER and BILGE PUMP switches

OFF.

Is voltage present?

L

#

I

. .

Go to step K.

I

CONTINUED FROM STEP D

1.

2.

3.

4.

5.

Reconnect lead 450 to BILGE PUMP switch

output.

Disconnect lead 450 to BILGE PUMP switch

input.

Place red lead of multimeter in lead 450 and

black lead to ground.

Turn MASTER switch ON and check for

voltage.

Turn MASTER switch OFF.

1

I Is voltage present?

Replace BILGE PUMP switch

(para 8-17).

I

CONTINUED ON NEXT PAGE

M109A4/M109A5

(ENGINE MODEL 7083-7396) SHOWN

M109A4/M109A5

(ENGINE MODEL 7063-7396) SHOWN

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