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 Section I. DESCRIPTION AND USE OF OPERATOR’S CONTROLS AND INDICATORS 2-1 OPERATOR’S CONTROLS, INDICATORS, AND INSTRUMENTS This section locates and describes the controls, indicators, and instruments used to operate the howitzer. NOTE In this manual, location descriptions of left and right side ALWAYS refer to the left and right side of the driver while in the driving position. 2-1 .1 Driver’s Controls and Indicators 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2-2 M42 DRIVER’S PERISCOPE HATCH LOCKING LEVER FUEL SHUT OFF CONTROL ASSEMBLY HANDLE MASTER WARNING LIGHT FIRE EXTINGUISHER HANDLE TRANSMISSION SHIFT CONTROL LEVER MANUAL CONTROL HANDLE HAND THROTTLE CONTROL LEVER ACCELERATOR PEDAL DRIVER’S HEATER OUTLET DUCT DRIVER’S SEAT VERTICAL ADJUSTING LEVER BRAKE PEDAL STEERING WHEEL DRIVER’S FIXED INSTRUMENT PANEL Three periscopes allow driver to see outside vehicle while driv- er’s hatch IS closed. Used to lock/unlock driver’s hatch. Used to stop fuel flow to engine. Illuminates when MASTER switch is in ON position and engine is not running. Activates fixed fire extinguishers. Used to select the speed range and the direction of the power output of the transmission. Used to engage parking brake. Another method of controlling the speed (rpm) of the engine. Pushing forward increases engine speed, while pulling back decreases engine speed. When depressed, speeds the engine allowing it to operate at greater rpm. When the accelerator pedal is released, engine rpm will return to idle speed. Provides means of controlling flow of heated air into driver’s compartment. Used to vertically adjust driver’s seat. Used to apply brakes to stow or stop vehicle. Used to steer vehicle. Panel having various switches and gages used by driver while operating vehicle.