TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 4-14. DISK ASSEMBLY MAINTENANCE INSTRUCTIONS - continued [a. Disassembly 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Remove threaded ring (1) using fabricated eccen- tric tool. Remove cell (2). Slide level (3) out of disk assembly (4), and remove cover (5). Remove two machine screws (6 and 7) and two Iockwashers (8 and 9). Discard Iockwashers. Remove plate insulator (10) and access cover(11) with related parts. Unsolder wire (12) from lug terminal (13). Remove machine screw (14), Iockwasher (1 5), and hub clamp (16). Discard Iockwasher. Remove machine screw (17), lug terminal (13), and plate (18) from access cover (11 ). Remove three machine screws (19), three lock- washers (20), and three retaining straps (21 ). Dis- card Iockwashers. Remove machine screw (22), Iockwasher (23), and electrical cover (24). Discard Iockwashers. NOTE Old disk assemblies contain lamps in place of LEDs. Remove LED (25). Using 11/16 and 45/64 inch tubular spanner wrench, remove threaded ring (26). Remove electrical lead (27). Remove two machine screws (28) and reflector (29), only if necessary for replacement. Remove tapered pin (30), only if damaged. Remove two rivets (31 ) and mirror (32), only if nec- essary for replacement. 4-18