TM-9-1290-262-24&P Technical Manual for M2A2 Aiming Circle Download
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9 10 11 12 13 14 15 16 17 18 Using a spanner wrench, turn three clamps (7) alternately until movement of knob assembly (6) feels firm. Attach torque wrench with torque wrench adapter (fig. E-2, appx E) to locking knob (6) and adjust tightness of each clamp (7) until a torque of 32.0 to 68.0 in.-oz (3.6 to 7.6 N-m) is reached at the locking knob. Apply sealing compound (item 8, appx D) to three setscrews (10). Tighten three setscrews securely. If removed, install two new pins (11 and 12). Aline pin on bottom of circular level (13) with hole in body assembly receptacle. Insert circular level (13) into body assembly (4). Insert shim (14), flat side down, and install ring (15). Tighten securely, using pinned tubular wrench (fig. E-1, appx E). Set- screws (16) will be tightened during collimation. Install level vial (17). Install eccentric (18) and eccentric ring (19). Do not tighten eccentric ring. Install level vial cover (20). ARMY TM 9-1290-262-24&P MARINE CORPS TM 00476C-24&P AIR FORCE TO 49A7-3-72/74 3-19