TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 263 of 1275
TM 9-2350-311-20-1 CONTINUED FROM STEP I 2. 3. 4. 5. 6. 7. 1. Reconnect powerplant wiring harness to rectifier. Disconnect rectifier-to-voltage regulator wiring harness from rectifier. Place jumper wires from pin E (lead 3) to a battery negative terminal and pin B (lead 1 ) to positive terminal of same battery. Turn MASTER switch ON and run vehicle engine at idle speed (750 rpm). Set multimeter on dc scale and place red lead of multimeter on pin C (lead 2) and black lead to ground. Check for voltage. Turn MASTER switch and enqine OFF. Is voltage above 27.5 Vdc? 1. I Replace rectifier (para 8-4). 2. 3. 4. 5. 6. 7. Reconnect rectifier-to-voltage regulator wiring harness to the rectifier. Disconnect rectifier to voltage regulator wiring harness from voltage regulator. Place jumper wires from pin E (lead 3) to a battery negative terminal and pin B (lead 1 ) to positive terminal of same battery. Turn MASTER switch ON and run vehicle engine at idle speed (750 rpm). Set multimeter on dc scale and place red lead of multimeter on pin C (lead 2) and black lead to ground. Check for voltage. Turn MASTER switch and engine OFF. Is voltage above 27.5 Vdc? I Repair or replace rectifier-to-voltage regulator wrong harness (para 8-59). I CONTINUED ON NEXT PAGE 3-153