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. 26 Interval Before Table 2–1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR M109 SELF-PROPELLED HOWITZER — CONTINUED Location Item to Check/ Service M117/M117A2 Panoramic Telescope Crewmember Procedure GUNNER a. b. c. Before firing, check field of view through reticle (1) for entrapped moisture, fungus, and optical defects. Make sure eyeshield (2) is free from deterioration, cuts, or tears. Check that all external surfaces of M117/M117A2 panoramic telescope are free of dents, cracks, rust, or corrosion. Check all knobs (3) for damage and freedom of movement. Not Fully Mission Capable If: Loose or defec- tive parts prevent proper operation. Knobs do not turn. 2-44