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 1-5 DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY USE - CONTINUED Load cannon with projectile and full powder charge. Attach a 50 foot (15.2 m) or longer lanyard to firing mechanism. Disconnect recoil cylinder lines and fire the weapon. Take a sledgehammer and bend the end of the counter recoil buffer rod. A second method is to close the breechblock and toss several thermite grenades down the cannon tube. Elevate the cannon tube so that the grenades will fall against the breechblock. This will melt the breech and the powder chamber, causing them to fuse together. 1-6 REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATION (EIR) If your howitzer needs improvement, let us know. Send us an EIR. You, the user, are the only one who can tell us what you don’t like about your equipment. Let us know why you don’t like the design or performance. Put it on an SF 368 (Product Quality Deficiency Report). Mail it to: Commander, U.S. Army Armament Research, Development and Engineering Center, ATTN: AMSTA-AR-QAW-A (R)/Customer Feedback Center, Rock Island, IL 61299-7300. We will send you a reply. 1-7 WARRANTY INFORMATION The M109 howitzer series is no longer warranted. 1-8 NOMENCLATURE CROSS-REFERENCE LIST Nomenclature in this manual was chosen in accordance with the terms used for provisioning as they appear in the Repair Parts and Special Tools Lists (RPSTL). A few tools and cab components however are referred to by names more common than those in the RPSTL. In many cases the more common name is a shorter name for the same component. Manual Nomenclature Official Nomenclature Cab ammunition rack assembly Canister rack propellant Projectile stowage rack assembly Bracket assembly Cannon tube Tube assembly Combat override switch Override switch assembly Dipstick Hex key Howitzer Gage rod Socket head screw key 155MM, medium, self-propelled howitzer, M109A2/M109A3/M109A4/M109A5 Lockwire Safety wire, nonelectrical wire M1A1 collimator Infinity aiming reference collimator M1A1 Change 2 1-3