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TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download

Page 141 of 775

TM 9--2350--311--10 Change 6 2--53 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 32 Before M140/M140A1 Alinement Device CANNONEER NO. 4 WARNING The M140 alinement device is radioactively illuminated. Check for loss of luminescence, breakage, damage, or defects. If present, follow the procedures on pages b and c. Before firing, check M140/M140A1 alinement device (1) for illumination. 1