TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 430 of 1275
TM 9-2350-311 -20-1 3-3 TROUBLESHOOTING CHART — CONTINUED ae. ELECTRIC FUEL PUMP CIRCUIT — CONTINUED ENGINE MISSES WHEN LOW ON FUEL; ONE OR BOTH FUEL PUMPS FAIL TO OPERATE — CONTINUED CONTINUED FROM STEP E F 1. Leave in-tank fuel pump lead assembly disconnected from relay. 2. Disconnect lead 76 of in-tank fuel pump lead assembly from "Y” connector. 3. Place a jumper wire from socket A (lead 10) to socket C (lead 76). 4. Place red lead of multimeter in lead 76 and black lead to ground. 5. Turn MASTER switch ON and check for voltage. 6. Turn MASTER switch OFF. Is voltage present? Repair or replace lead 76 of in-tank fuel pump lead assembly (para 8-73). A G 1. Reconnect lead 76 of in-tank fuel pump lead assembly to "Y“ connector. 2. Disconnect lead 76 of circuit breaker lead assembly from“Y"connector. 3. Place red lead of multimeter in “Y” connector and black lead to ground. 4. Turn MASTER switch ON and check for voltage. 5. Turn MASTER switch OFF. Is voltage present? 1 I I Replace ‘Y” connector (para 8-54). CONTINUED ON NEXT PAGE 3-330