TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 4-13. M145/M145A1 TELESCOPE MOUNT MAINTENANCE INSTRUCTIONS - continued I c. Assembly - continued 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Securely tighten cross-level mechanism knob (79). With torque wrench and torque adapter (8599917), rotate cross-level mechanism knob (79) one turn clockwise and one turn counterclockwise. Measure the torque required to turn cross-level mechanism knob (79). Adjust plug (72) to obtain 3 to 6 pound-inches (0.34 to 0.68 N-m) torque. Install two lug terminals (59) with two wires (58) attached on plate (60) using two machine screws (57). Assemble plate (60) between plate insulator (56) and plate insulator (55) and install on Ml 45/ Ml 45A1 telescope mount using two new lock- washers (54) and two cap screws (53). Install insulator (52), if removed. Install two lug terminals (49) with wires (50) at- tached on two contacts (51) with two nuts (48). Install receptacle shell (47), plate (46), shoulder pin (45), and machine screw (44). Install lug terminal (40) with attached wire (41 ) us- ing new Iockwasher (39) and cap screw (38). Using solder and flux, solder wire (36) and wire (37) to toggle switch (33) (ref. TM 9-254). Install plate (32) on toggle switch (33) using wash- er (35) and nut (34). Install toggle switch (33) and plate (32) on mount using three machine screws (31 ). Install retaining strap (30), new Iockwasher (29), and machine screw (28). Install two retaining straps (27), two new lock- washers (26), and two machine screws (25). Install two clamps (43) and two machine screws (42). 4-16