TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 5.1-19. M15 QUADRANT MAINTENANCE INSTRUCTIONS - continued a. Disassembly 1 2 3 4 5 6 Remove ring spacer (1) and preformed packing (2). Discard preformed packing. Remove three screws (3) and three packings (4). Carefully work level assembly (5) from straight pin (6). Remove gasket (7). Discard gasket. Remove straight pin (6), only if damaged. Remove three screws (8), three lockwashers (9), and counter assembly (10). Discard lockwashers. Remove two straight pins (11), only if damaged. 7 Remove plug (12), spring (13), and plunger (14). 8 Remove capscrew (15) and lockwasher (16) from gear sector (17). Discard lockwasher. 9 Using adjustable spanner wrench, remove ring (18), ball socket seat (19), and wormshaft (20) from M15 quadrant. 10 Remove gear sector (17) from quadrant spacer (21) and remove two screws (22) from gear sector (17). 5.1-36 Change 1