TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-400-34&P 5-19. FINAL INSPECTION INSTRUCTIONS (CONT). SETTING UP AND ADJUSTING CROSS-LEVELING FIXTURE (CONT) 7 Place precision level (2) on adapter keys (8). Make sure precision level bubble is centered. 8 Tighten setscrew (9) and re-level cross-level and adapter keys. 9 Rotate precision level (2) 180 degrees from original position, and check that precision level bubble is centered. VISUAL INSPECTION 1 Check that all screws and lockwashers are present and tight. 2 Check that all mounting surfaces are clean and free of nicks and burrs. 3 Check that M137 telescope mount is free of dirt, corrosion, and foreign matter. 4 Check that M137 telescope mount paint is not chipped. 5 Check that all M137 telescope mount parts are present. 6 Check for broken, frayed, or deteriorated insulation on extension light. 5-54