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 2--46 Change 6 Table 2--1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR M109 SELF-PROPELLED HOWITZER — CONTINUED Location Item No. Not Fully Mission Capable If: Crewmember Procedure Item to Check/ Service Interval 26.1 Before Fixed Fire Extin- guisher System GUNNER a. Make sure bottle holddown brackets (1) are properly latched. Distribution lines loose, cracked, or not mounted tightly. b. Check distribution lines (2) for loose fittings, tight mountings, and cracks. Discharged bottle. 2 1 c. Check for presence of fire extinguisher record tag, and that form indicates that the bottles have been weighed IAW unit SOP. Bottles have not been weighed IAW unit SOP.