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 2–1 OPERATOR’S CONTROLS, INDICATORS, AND INSTRUMENTS — CONTINUED 2–1.4 Crew Controls and Instruments — Continued 15 16 17 18 19 20 21 22 23 24 25 CAM ASSEMBLY M146 TELESCOPE MOUNT M118A2/M118A3 ELBOW TELESCOPE M15 ELEVATION QUADRANT REPLENISHER ACCUMULATOR ASSEMBLY PRESSURE GAGE COLLIMATOR STORAGE CONTAINER HAND PUMP CRANK ASSISTANT GUNNER’S CONTROL ASSEMBLY HANDLE AIR CLEANER LATCH AIR CLEANER INDICATOR PERSONNEL AIR VENTILATION BLOWER Holds breech in open position. Provides an adjustable support for the M118A2/M118A3 elbow telescope. Direct fire instrument used for positioning the weapon in azi- muth and elevation on targets visible from the weapon. Provides the means for laying the weapon in elevation for indi- rect firing. Indicates hydraulic pressure. Stores M1A1 collimator which is used for laying of the weapon. Allows assistant gunner to manually elevate the cannon tube. Allows assistant gunner to elevate and depress the cannon tube. Opens door allowing access to filters. Alerts crew of air flow restriction in air cleaner. Provides ventilation to crew compartment, 2-12