TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download
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TM 9-2350-311-10 Item No. 72 Interval Weekly Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR M109 SELF-PROPELLED HOWITZER - CONTINUED Location Item to Check/ Service NBC System M 109A4/M109A5) Crewmember Procedure CHIEF OF SECTION AND CREW WARNING NBC contaminated filters must be handled us- ing adequate precautions and must be dis- posed of by trained personnel. a. Open spring clip (1) on M2A2 air purifier (2). Turn NBC switch (3) on driver’s fixed instrument panel (4) to ON position. Ensure NBC indicator light (5) lights. Place switch (6) on NBC control box assembly (7) to ON position. Ensure indica- tor light (8) lights. b. Inspect hoses for leaks, splits, and abrasions. c. Connect M25A1 masks to all six stations and check that air is entering all M25A1 masks. Not Fully Mission Capable If: Change 2 2-85