TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 5.1-14. M15 QUADRANT MAINTENANCE INSTRUCTIONS - continued a. Disassembly 1 2 3 4 5 6 7 8 9 10 11 Loosen one of two setscrews in notches in detent plate of knob assembly (1). Remove three screws (2) and three lockwashers (3). Pull base (4) carefully off two straight pins (5). Discard lockwashers. Remove knob assembly (1) and preformed packing (6). Discard preformed packing. Remove two straight pins (5), only if damaged. Remove two screws (7) and identification plate (8), only if damaged. Remove instrument light (9), two screws (10), plate spacer (11), and spring tension clip (12) from housing, only if damaged. NOTE Electrical cover of level assembly must be removed to permit removal of cover assembly. Remove tapered pin (13), knob (14), spring tension washer (15), recessed washer (16), and preformed packing (17). Discard preformed packing. Remove nine screws (18) and nine lockwashers (19) and carefully work cover assembly (20) off two straight pins (21) in housing. Discard lockwashers. Remove and discard gasket (22). Remove two setscrews (23), only if damaged. Remove two straight pins (21), only if damaged. 5.1-18 Change 1