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TM-9-1290-262-24&P Technical Manual for M2A2 Aiming Circle Download

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ARMY TM 9-1290-262-24&P MARINE CORPS TM 00476C-24&P AIR FORCE TO 49A7-3-72/74 3-1. TROUBLESHOOTING INFORMATION (cont) SYMPTOM INDEX Troubleshooting Procedure (Page) M2A2 AIMING CIRCLE Azimuth mechanism binds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Azimuth micrometer scale slips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Azimuth throwout mechanism binds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Azimuth throwout mechanism does not return to mesh when released . . . . . . . . . . . . Backlash present in azimuth mechanism . Backlash present in elevation mechanism Backlash present in orienting mechanism Compass needle fails to turn freely when Elevation knob has limited movement . . . Elevation mechanism binds . . . . . . . . . . Elevation micrometer scale slips . . . . . . . Image is poorly defined . . . . . . . . . . . . . Image is tilted . . . . . . . . . . . . . . . . . . . . Orientation throwout mechanism binds . . unlocked . . . . . . . . . . . . . . . . . . . . . . . . . . Orientation throwout mechanism does not return to mesh when released . . . . . . . . . . Parallax present in optical system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reticle does not become illuminated.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reticle is tilted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Telescope reticle has poor definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M24 FIRE CONTROL TRIPOD Aiming circle fails to rest properly on tripod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fire control tripod unstable; level bubbles will not remain centered . . . . . . . . . . . . . . . 3-10 3-4 3-5 3-6 3-7 3-6 3-8 3-10 3-4 3-9 3-4 3-3 3-3 3-5 3-6 3-3 3-3 3-3 3-3 3-11 3-11 3-2