TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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2-14 TM 9-1240-401-34&P 2-11. M146 TELESCOPE MOUNT MAINTENANCE INSTRUCTIONS - continued c. Assembl y- continued I 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Apply grease (item 7, appx B) to new preformed packing (72) and install on elevation bracket (79). Apply grease (item 7, appx B) to new preformed packing (71) and install on threaded ring (54). Install threaded ring (54) in mount. Install two headless straight pins (64) in ratchet shield (63). Install ratchet shield (63), spring washer (62), dial ratchet (61 ), keyed ratchet (60), and concave washer (59) on knob (57). . Install flat washer (58) in base plate (52). Lubricate disk (69) with grease (item 6, appx B) and install on knob (57). Install scale dial (68) and spring washer (67) on knob (57). Install round nut (66) on knob (57). Tighten round nut (66) sufficiently to provide a snug fit of the scale dial (68) and knob (57). Install setscrew (70) to lock round nut (66). Install concave washer (65). Position base plate (52) on elevation bracket (79). Position assembled knob (57) as a unit in elevation bracket (79). Apply grease (item 6, appx B) to worm portion of