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 unlocked . . . . . . . . . . . . . . . . . . . . . . . . . .
Elevation knob has limited movement . . .
Elevation mechanism binds . . . . . . . . . .
Elevation micrometer scale slips . . . . . . .
Image is poorly defined . . . . . . . . . . . . .
Image is tilted . . . . . . . . . . . . . . . . . . . .
Orientation throwout mechanism binds . .
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Fire control tripod unstable; level bubbles will not remain centered . . . . . . . . . . . . . . . 3-11
3-2
