1、! r- MIL-T-63443 (AR) AMENDMENT 1 . 1 MOVEMBER 1988 MILITARY SPECIFICATION TELESCOPE, ELBOW ASSEMBLY: 8211640 This Amendment forms a part of MIL-T-63443 dated 22 March 1982, and is approved for use within the U.S. Army Armament, Munitions and Chemical Command, and is available for use by all Departm
2、ents and Agencies of the Department of Defense. (AR), PAGE 2 2.1t DRAWINGS, add: “F7 6 8 7 11 3 Test Fixture, Aiming Circle F7680631 Dioptometer C7 6418 6 6 F8565556 Pressure Tester - Two Station“ Surface Quality Standards for Optical Elements (Scratch ) PAGE 3 3.4.8, add new paragraph: “3.4.8 Colli
3、mation. Collimation shall be in accordance with note 2 of drawing F8211640.“ PAGE 5 TABLE I, add Characteristic 108: “108. Collimation 3.4.8 PAGE 9 4.6.10, add new paragraph: 4.6.10“ l4.6.10 Collimation. The collimation test for the requirement of 3.4.8 shall be conducted with the special testing eq
4、uipment conforming to drawing 7687113, and in accordance with the Set-up and operation instructions specified as follows: MSC N/A 1 of 3 FSC 1290 DTSTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted wit
5、hout license from IHS-,-,-, MIL-T-63443 (AR) AMENDMENT 1 a. With collimator “A“ in supports “B“ and “C“ , remove wrench “D“ and bushing !E from plate “F“ . b. Plumb collimator “A“ to a toolmakers square located on surf ace “N“ . c. Locate mirror G“ on pin “HI with front surface of d. By use f adjust
6、ing screws “J“ , auto-collimate the mirror against plate “F“ and held in place by clamp iiIr. horizontal reticle line of collimator “A“. e. Remove mirror “G“ and recheck plumb as noted under b above. If adjustments are required, such adjustments shall be made until requirements b and d above are met
7、. f. Insert mirror assembly “K“ into locating ring “M“ with front surface of mirror “G“ against surface and facing collimator “A1. g. Hold mirror assembly “K“ with mirror iiG“ in a vertical position and secure with clamp “L“. _h ! - h. Check vertical reticle of collimator and ascertain if it is supe
8、rimposed on mirror assembly “K“ . If vertical reticle of collimator “A“ is not superimposed on mirror assembly lKI , adjust collimator accordingly. i. Recheck b through h inclusive until all requirements are met. Then remove mirror assembly from test equipment. j. Replace wrench “DI and bushing “E“
9、in plate “F“. k. Back off wrench ID“ and bushing “E“ sufficiently to clear the objective end of the telescope. 1. Insert telescope into locating ring “M“ with the objective end of the telescope pointed toward collimator “A“ and secure with clamp L“. , do not tighten. m. Insert bushing “E“ into objec
10、tive end of the telescope. When bushing “E“ is firmly seated, tighten clamp “L“. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-T- ! MIL-T-63443 (AR) AMENDMENT 1 n. Insert wrench “D“ into objective cell of telescope, and while sighting through eye
11、lens of telescope, reduce parallax to the specification tolerances. o. W.hile sighting through eyelens to telescope, plumb and collimate telescope reticle to collimator “A“ reticle by means of the reticle adjusting screws of the telescope.“ Custodian: Army-AR Preparing activity: Army-AR - (Project 1290-A431) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
