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 006C-24&P AIR FORCE TO 49A7-3-72/74 INSTALLING AND LEVELING AIMING CIRCLE ON AZIMUTH TEST FIXTURE ADAPTER 1 Check that when index scale coincides with zero graduation line on azimuth scale (1), azimuth micrometer scale (2) also indicates zero. 2 Place azimuth mechanism shaft approxi- mately parallel to and above orienting mechanism shaft. 3 Place and secure aiming circle (3) on azi- muth test fixture adapter with line of sight of aiming circle directed into mater. 4 Turn three knob assemblies clockwise until they stop. 5 Turn three knob assemblies approximately four turns. projector colli- (4) counter- (4) clockwise 6 Check circular level (5). Bubble should be centered, not to exceed one half the line forming the red circle (6) throughout 6400 roils revolution of aiming circle. If bubble remains centered, proceed to step 11. If not, go to step 7. 4-19