TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 3–122 3–3 TROUBLESHOOTING — CONTINUED j. NBC SYSTEM CIRCUIT The NBC system consists of an NBC control box assembly, M2A2 air purifier, and gunner’s, cannoneer no. 1’s, section chief’s, and assistant gunner’s M3 electric air heater. All power to the NBC components is controlled through the NBC power switch which is accompanied by an indicator light. WIRING DIAGRAM SCHEMATIC DIAGRAM NBC CONTROL BOX J2 A B C D E F