TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 125 of 1275
TM 9-2350-311-20-1 CONTINUED FROM STEP D 1. Reconnect lead 4596 to MASTER switch. 2. Disconnect engine disconnect bracket-to- bulkhead wiring harness from voltage regulator. 3. Place red lead of multimeter in socket A (lead 2) and black lead to ground. 4. Turn MASTER switch ON and check for voltage. 5. Turn MASTER switch OFF. Is voltage present? Replace or repair lead 2 of engine disconnect bracket-to-bulkhead wiring harness (para 8-45, M109A2/M109A3; para 8-46, M109A4/M109A5). 1. Place a jumper wire from socket A to pin A. 2. Place red lead of multimeter on pin B (lead 459B/400) and black lead to ground. 3. Turn MASTER switch ON and check for voltage. 4. Turn MASTER switch OFF. Is voltage above 18 Vdc? I Replace voltage regulator (para 8-3). CONTINUED ON NEXT PAGE 3-25