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. 20 Interval Before Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR M109 SELF-PROPELLED HOWITZER - CONTINUED Location Item to Check/ Service Breechblock (Cont) Crewmember Procedure CANNONEER NO. 1 b. Lubricate breechblock and breech ring threads (3) with a light coating of CLP (item 8, Appx D). When weapon is not being fired or inspected, keep breechblock closed to prevent damage from tension on adjuster leaf springs. c. Inspect breechblock detent (6) for distortion and wear. If worn, notify unit maintenance. Not Fully Mission Capable If: Change 2 2-37