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TM-9-2350-358-BD M109A6 Battlefield Damage Assessment and Repair Download

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TM 9-2350-358-BD SECTION II. POWERTRAIN / STEERING 8-4. GENERAL The M109A6 powertrain, separate from the engine, consists of a transfer case, transmission and two final drives. The transmission and transfer assemblies transmits power from the engine through the transfer assembly to the transmission input spur gear which is splined to the transmission input shaft. The input spur gear operates the driven spur gear to which the torque converter drive gear is splined. The torque converter delivers two branches of power, vehicle drive and steering. The transmission is hydro-mechanically operated and delivers power to the left and right final drive sprockets. The transmission provides four forward and two reverse speeds, and steering through a differential action. 8-3