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 d. STARTER MOTOR CIRCUIT (M109A4/M109A5) — (1) ENGINE DOES NOT CRANK; ALL ELECTRICAL CONTINUED ACCESSORIES OPERATE — CONTINUED CONTINUED FROM STEP Q 1. 2. 3. 4. 5. Reconnect lead 10 to output side of circuit breaker. Disconnect lead 10 from input side of circuit breaker. Place red lead of multimeter in lead 10 and black lead to ground. Turn MASTER switch ON and check for voltage. Turn MASTER switch OFF. Is voltage present? Replace circuit breaker (para 8-34). 1. Reconnect lead 10 to input side of circuit breaker. 2. Disconnect master relay-to-driver’s bulkhead lead assembly from driver’s bulkhead. 3. Place red lead of multimeter in lead 82 and black lead to ground. 4. Turn MASTER switch ON and check for voltage. 5. Turn MASTER switch OFF. Is voltage present? Repair or replace lead 10 of power lead wiring harness (para 8-56). 3-50 Repair or replace lead 82 of master relay-to-driver's bulkhead lead assembly (para 8-82).