TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311-20-1 3-3 TROUBLESHOOTING CHART — CONTINUED ab. BILGE PUMP CIRCUIT — CONTINUED BILGE PUMP FAILS TO OPERATE — CONTINUED CONTINUED FROM STEP A I B 1 “ Reconnect lead 452 to bilge pump. 2. Disconnect engine disconnect bracket-to- bulkhead wiring harness from bilge pump relay. 3. Place red lead of multimeter in socket C (lead 452B) and black lead to ground. 4. Turn MASTER switch ON and check for voltage. 5. Turn MASTER switch OFF. I Is voltage present? I I Go to step E C 1. Place a jumper wire from socket C (lead 452B) to socket B (lead 452). 2. Turn MASTER and BILGE PUMP switches ON and check bilge pump for operation. 3. Turn MASTER and BILGE PUMP switches OFF. Does bilge pump operate? I Repair or replace lead 452 of bulkhead-to-headlights/bilge pump wiring harness (para 8-47). CONTINUED ON NEXT PAGE 3-306