TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 3–138 3–3 TROUBLESHOOTING — CONTINUED j. NBC SYSTEM CIRCUIT — CONTINUED (7) NBC CONTROL BOX ASSEMBLY INDICATOR LIGHT ILLUMINATES, BUT ASSISTANT GUN- NER’S M3 ELECTRICAL HEATER DOES NOT OPERATE. — CONTINUED CONTINUED FROM STEP B yes no C END OF TASK Replace J2 connector on NBC control box as- sembly (para 17–4). Repair wire 10 (para 17–4). + – PIN C J2 CONNECTOR WIRE 10 yes no Repair wire 136C of NBC power lead assembly (para 8–9). 1. Reconnect wire 136C to assistant gunner’s M3 electrical air heater. 2. Place one multimeter lead in socket C and other lead to pin C of J2 connector of NBC control box assembly. 3. Check for continuity. Is continuity present? J2 CONNECTOR SOCKET C C