TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 7 Install M15 quadrant on quadrant mounting fixture (5) (fig. C-12, appx C) with four bolts. 8 Position quadrant mounting fixture (5) on drill press table with M15 quadrant placed in upright position. 9 Using cross-level knob (6), adjust cross-level bubble in fire control level (7) until bubble centers. 10 Reposition quadrant mounting fixture (5) with elevation quadrant facing upward. 11 Drill with a number 13 drill bit and ream for a 3/16- inch straight pin (2). 12 Loosen screw (4) and remove shims previously installed between bar (1) and housing (8). Seal over screw (4) using sealing compound; (item 13, appx B). 13 Aline holes drilled and reamed in bar (1) and housing (6) and install straight pin (2). 14 Install screw (4) into recess of bar (1) but do not tighten. 15 Remove M15 quadrant from quadrant mounting fixture (5) and reinstall on test fixture adapter. Change 1 5.1-65