TM-9-2350-358-BD

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A6

TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT SUPPORT MAINTENANCE

MARCH 1994
TM-9-2350-358-BD

  TM-9-2350-358-BD - Page 183 of 343

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


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