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 1–23 1–14 EQUIPMENT OPERATION AND DESCRIPTION — CONTINUED 1–14.1 Powerplant — Continued e. TRANSMISSION. The transmission (5) is oil cooled and mechanically and hydraulically operated. It receives power from the engine (2 or 3) through a geared power transfer assembly (4). The transmission has seven gears – four forward, one neutral, and two reverse – and delivers power to the left and right drive sprockets through the output shaft, universal joints, and final drives. It also functions as the steering and braking mechanism. 1 2 3 4 5 6 6 7