TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311-20-1 CONTINUED FROM STEP G 3. 4. 5. 6. Reconnect lead 27 to circuit breaker output. Disconnect bulkhead-to-portable instrument panel wiring harness from portable instrument panel bracket. Place a jumper wire from socket P (lead 459B) to socket C (Iead 459). Place red lead of multimeter in socket A (lead 27) and black lead to ground. Turn MASTER switch ON and check for voltage. Turn MASTER switch OFF. Is voltage present? Repair or replace lead 27 of bulkhead- to-portable instrument panel wiring harness (para 8-49). Repair or replace lead 27 of portable instrument panel wiring harness (para 8-57). CONTINUED FROM STEP G 1. Reconnect lead 27 to circuit breaker output. 2. Disconnect lead 10 from circuit breaker input. 3. Place red lead of multimeter in lead 10 and black lead to ground. 4. Turn MASTER switch ON and check for voltage. 5. Turn MASTER switch OFF. Is voltage present? I I I I Troubleshoot master relay circuit I I (par 3-3b). Replace circuit breaker (para 8-33, M109A2/M109A3; 8-34, M109A4/M109A5). END OF TASK 3-189 1. 2.