TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
Page 248 of 828
TM 9–2350–311–20–2 3–136 3–3 TROUBLESHOOTING — CONTINUED j. NBC SYSTEM CIRCUIT — CONTINUED (6) NBC CONTROL BOX ASSEMBLY INDICATOR LIGHT ILLUMINATES, BUT SECTION CHIEF’S M3 ELECTRICAL AIR HEATER DOES NOT OPERATE. — CONTINUED Repair wire 12 (para 17–4). yes no C CONTINUED FROM STEP B END OF TASK Replace J2 connector on NBC control box assem- bly (para 17–4). + – PIN F J2 CONNECTOR WIRE 12 yes no Repair NBC power lead assembly (para 8–9). 1. Reconnect lead 136D to section chief’s M3 electrical heater. 2. Place one multimeter lead in socket F and other lead to pin F of J2 connector on NBC control box assembly. 3. Check for continuity. Is continuity present? J2 CONNECTOR SOCKET F NBC CONTROL BOX ASSEMBLY C