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 3-6 ARMAMENT AND CAB MAINTENANCE — CONTINUED 3-6.3 Rammer Assembly — Continued b. Rammer Reliability Checks — Continued Improperly rammed projectiles can cause short rounds and short rounds fall on friendly forces causing serious injury or death. When exercising rammer assembly, bring the rammer assembly to full extension slowly to avoid seal damage. 4 Check to assure rammer assembly (3) locks in ram position and plunger (9) on blocking check valve (10) is depressed by bridge clamp (11). 5 Slowly depress control handle (12) and hold to extend rammer assembly (3) to full stroke. Release control handle to bring rammer assembly back to original position. If rammer assembly fails to ram, does not operate smoothly, makes unusual noises, or jerking motions, discontinue use of the rammer assembly to prevent damage to equipment and notify unit maintenance. 6 Return rammer assembly (3) to stowed position. NOTE RAMMER ASSEMBLY IS SHOWN IN RAM POSITION. 3-44