TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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NOTE TM 9-1240-401-34&P a. Disassembly 1 Support azimuth knob (1) with a V-block. 2 Remove headless straight pin (2). 3 Remove azimuth knob (1). 4 Remove cap screw (3), Iockwasher (4), flat washer (5), and plate (6). Discard Iockwasher. 5 On M117A2 panoramic telescope only, remove three machine screws (7), cap (8), and gasket (9). Discard gasket. Preformed packing (10) is located in cap (8) of M117A2 panoramic telescope or in plate (6) of M117 panoramic telescope. 6 Remove and discard preformed packing (10). 7 Remove headless straight pin (11), gunner’s aid knob (12), three shims (13), and seal (14). Discard shims. 8 Remove three machine screws (15), three machine screws (16), and six Iockwashers (17). Discard Iockwashers. 9 Remove cap assembly (18). 10 Remove cover (19). Remove two headless straight pins (20), only if damaged. 5-11