TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 275 of 1275
TM 9-2350-311-20-1 CONTINUED FROM STEP H 1. Reconnect powerplant wiring harness to alternator. 2. Disconnect powerplant wiring harness from rectifier. 3. Place jumper wires from pin C (lead 3) to battery negative terminal and pin A (lead 1) to positive terminal of same battery to apply 12 Vdc to alternator field. 4. Turn MASTER switch ON and run vehicle engine at 1000 rpm. 5. Set multimeter on ac scale, and place red lead of multimeter on pin B (lead 500) and black lead on pin D (lead 501). 6. Check for voltage. 7. Place red lead of multimeter on pin F (lead 502) and black lead on pin B (lead 500). 8. Check for voltage. 9. Turn MASTER switch and engine OFF. Is voltage above 27.5 Vac? Repair or replace leads 500,501, 502, 1, and/or 3 of powerplant wiring harness (para 8-44). CONTINUED ON NEXT PAGE 3-175