TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 400 of 1275
TM 9-2350-311 -20-1 3-3 TROUBLESHOOTING CHART — CONTINUED aa. PERSONNEL VENTILATION BLOWER CIRCUIT — PERSONNEL VENTILATION BLOWER FAILS TO CONTINUED OPERATE — CONTINUED CONTINUED FROM STEP G H 1. Reconnect lead 10 to accessory control bOX. 2. Remove accessory control box cover (para 8- 20). 2. Disconnect lead 10A from circuit breaker input. 3. Place red lead of multimeters in lead 10 and black lead to ground. 4. Turn MASTER switch ON and check for voltage. 5. Turn MASTER switch OFF. I Is voltage Present? Repair or replace lead 10/10A of accessory control box wiring harness (para 8-53). 1. Reconnect lead 10A to circuit breaker input. 2. Disconnect lead 159 from circuit breaker output. 3. Place red lead of multimeters in circuit breaker output and black lead to ground. 4. Turn MASTER switch ON and check for voltage. 5. Turn MASTER switch OFF. Is voltage present? Replace circuit breaker (para 8-20). CONTINUED ON NEXT PAGE 3-300