TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 4-16. QUADRANT SUPPORT ASSEMBLY MAINTENANCE INSTRUCTIONS - continued I I a. Disassembly I 2 3 4 5 6 7 8 9 10 11 12 1 Remove two machine screws (1), two Iockwashers (2), plate insulator(3), and plate insulator (4). Dis- card Iockwashers. Remove two machine screws (5), two lug terminals (6), and plate (7). Remove retainer (8), spring (9), and V-bearing (10) on Ml 45A1 telescope mount. Remove two machine screws (11), two lock- washers (12), and two retaining straps (13). Dis- card Iockwashers. Remove machine screw (14), Iockwasher (15), ma- chine screw (16), Iockwasher (17), and clamp (18). Discard Iockwashers. Remove machine screw (19), Iockwasher (20), electrical connector cover (21), and LED (22). Dis- card Iockwasher. Using 11/16 and 45/64 inch tubular spanner wrench, remove threaded ring (23). Remove electrical lead (24) and lens (25). Remove threaded ring (26), using fabricated ec- centric tool. Remove holder (27) and control cam (28). Slide out level (29) and remove cover (30). Remove tapered pin (31) and knob (32) on M145 telescope mount. Remove spring pin (33) and knob (34) on M145A1 telescope mount. I b. Repair I 1 Remove corrosion, grease, and dirt from all parts. Refer to TM 9-254 for cleaning instructions. 2 Visually inspect for missing or damaged parts. 3 Repair or replace parts in accordance with author- ized parts listed in appendix D. 4-26