TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 132 of 1275
TM 9-2350-311 20-1 3-3 TROUBLESHOOTING CHART — CONTINUED C. STARTER MOTOR CIRCUIT (M109A2/M109A3) — ENGINE DOES NOT CRANK; ALL ELECTRICAL CONTINUED ACCESSORIES OPERATE — CONTINUED CONTINUED FROM STEP C E 1. Reconnect lead 82 to engine disconnect bracket. 2. Disconnect engine disconnect bracket-to- driver’s bulkhead wiring harness from engine disconnect bracket. 3. Place red lead of multimeter in socket P (lead 14B) and black lead to ground. 4. Turn MASTER switch ON, push STARTER switch and check for voltage. 5. Turn MASTER switch OFF. Is voltage present? Go to step Q. F 1. Reconnect connector to engine disconnect bracket. 2. Disconnect engine disconnect bracket-to- driver’s bulkhead wiring harness from starter switch relay. 3. Place a jumper wire from socket C to socket B (lead 14B). 4. Turn MASTER switch ON and push STARTER switch. 5. Turn MASTER switch OFF. Does engine crank? CONTINUED ON NEXT PAGE 3-32