TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 17–1 CHAPTER 17 NUCLEAR, BIOLOGICAL, AND CHEMICAL (NBC) PROTECTION EQUIPMENT GENERAL This chapter describes unit maintenance procedures for NBC system on M109A4/M109A5 howitzers. Removal, disas- sembly, assembly, installation, repair, inspection, and testing procedures are included. NBC power lead assembly and ground lead maintenance is located in Chapter 8, Cab Electrical System. A general inspection is provided for all applicable parts. CONTENTS Page 17–1 GENERAL INSPECTION AND REPAIR PROCEDURES. 17–2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17–2 M3 ELECTRICAL AIR HEATER 17–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17–3 M2A2 AIR PURIFIER AND BRACKET 17–8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17–4 NBC CONTROL BOX ASSEMBLY 17–13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17–5 HOSES AND FITTINGS 17–19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17–6 AIR OUTLET ORIFICE CONNECTOR 17–28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M3 ELECTRICAL AIR HEATER M2A2 AIR PURIFIER NBC CONTROL BOX ASSEMBLY M3 ELECTRICAL AIR HEATER