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TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download

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TM 9-1240-400-34&P MOUNTING M137 TELESCOPE MOUNT ON CROSS-LEVELING FIXTURE 1 Install telescope mount (1) on adapter keys (2) of test fixture adapter (3). 2 Install four capscrews (4) and four lockwashers (5) and tighten evenly. 3 Check that cross-leveling fixture (6) is level. Re-level as required. 4 Level the top surface of the upper telescope mount subassembly using parallel bar (7) and precision level (8) positioned against locating pins (9). Surface should be horizontal within 0.5 mil. Use cross-level knob (10) to level M137 telescope mount. 5-55