TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 1 If removed, apply sealing compound to threads and install three setscrews (88) and three setscrews (89). 3 Install wormshaft assembly (87) in cross-level mechanism (61 ) and secure with seat (86) using adjustable spanner wrench. 4 Apply sealing compound to setscrew (84) and se- cure seat (86) with setscrew (84). 5 Apply sealing compound to threads and install setscrew (85). 6 Apply oil to flat washer (83) and install with body hub (82). Secure with tapered pin (81). 7 Install indicator (80), cross-level knob (79), two new Iockwashers (78), and two machine screws (77). 8 If removed, install headless straight pin (76). 9 Apply grease to gib key (75) and install 10 Apply grease to the worm of segment assembly (90). 11 Rotate pitch knob (91) to move rocker assembly toward rear of M145/M145A1 telescope mount until rocker assembly makes contact with side of cross- Ievel mechanism (61). 12 Install assembled cross-level mechanism (61) on segment assembly (90). 13 Install two cap screws (67), two new Iockwashers (68), two cap screws (65), and two new lock- washers (66) snugly. Rotate cross-level mecha- nism knob (79) from stop to stop and return to cen- ter. Tighten four cap screws (65 and 67). 14 Install two clamping catches (69) using two new Iockwashers (71) and two machine screws (70) for each clamping catch (69). 15 Install V-bearing (74), spring (73), and plug (72). 16 Install tapered pin (63), sleeve bearing (64), and nut (62). 4-15