TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 3-15. WORMSHAFT ASSEMBLY MAINTENANCE INSTRUCTIONS - continued 1 2 3 4 5 6 7 8 9 10 11 12 Apply grease (item 7, appx B) to new preformed packings (19 and 20) and install in grooves on worm shaft (9). Apply grease (item 6, appx B) to ends of worm shaft (9) adjacent to preformed packings (19 and 20). Install worm shaft (9) in worm shaft housing (16). Apply grease (item 7, appx B) to new preformed packing (18) and install on bushing (1 7). Install bushing (17) in worm shaft housing (1 6). Apply sealing compound to setscrew hole in worm shaft housing (16). Install setscrew (15). Aline reference mark on knob (13) and worm shaft (9). Place knob (13) on end of worm shaft (9). Support knob (13) with a V-block and drive in tapered pin (14). Apply grease (item 6, appx B) to spring washer (11) and two ratchets (12), Install two ratchets (12), spring washer (11), and knob (8) on worm shaft (9). Aline reference mark on knob (8) and worm shaft (9). Support knob (8) with a V-block and drive in ta- pered pin (10); stake tapered pins (10 and 14). Apply adhesive to one side of new preformed pack- ing (21) and into groove in worm shaft housing (16). Install preformed packing in worm shaft hous- ing. 3-10 d. Assembly