TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 434 of 1275
TM9-2350-311 -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 K 1 I L 1. Reconnect lead 588 of driver’s instrument panel wiring harness to FUEL PRIMER switch. 2. Disconnect lead 76 of bulkhead-to-driver’s instrument panel wiring harness from FUEL PRIMER switch. 3. Place red lead of multimeter on FUEL PRIMER switch and black lead to ground. 4. Turn MASTER and FUEL PRIMER switches ON and check for voltage. 5. Turn MASTER and FUEL PRIMER switches OFF. Is voltage present? I I Replace FUEL PRIMER switch (para 8-17). CONTINUED ON NEXT PAGE 3-334