TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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TM 9-2350-311-34-2 1-14.9 Location and Description of Elevation Selector Valve Assembly The elevation selector valve assembly (1) is located at the right front of cab, forward of the manual elevation accumulator. It is actuated by a solenoid (2) energized by gunner’s selector switch box assembly (3) ELEVATION CONTROL switch (4) to determine which control assembly (gunner’s or assistant gunner’s) regulates hydraulic fluid flow into the equilibrated ele- vating cylinder. 1-27