TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 91240-400-34&P 5-12. MAINTENANCE OF TELESCOPE MOUNT SUBASSEMBLY LOWER ASSEMBLY (CONT). DISASSEMBLY (CONT) 8 Remove self-locking nut (18), thrust washer (19), and bearing (20) from worm shaft (17). CLEANING Clean all parts per TM 9-254. REPAIR Repair is by replacement of authorized parts. Refer to appendix B. REASSEMBLY NOTE Apply a light coat of aircraft grease (item 8, appx C) to all moving parts. 1 Install bearing (1), thrust washer (2), and new self-locking nut (3) to worm shaft (4). 2 Install worm shaft (4) in housing (5). 3 Install nonmetallic washer (6), spring (7), and nonmetallic washer (8) on worm shaft (4). 4 Apply sealing compound (item 10, appx C) to threads of ring (9). 5 Using adjustable spanner wrench, install ring (9) in housing (5). 6 Install nonmetallic washer (10) and knob (11). 7 If necessary, drill and ream knob (11) and worm shaft (4). Install tapered pin (12). Refer to TM 9-254. 5-30