TM-9-1290-262-24&P Technical Manual for M2A2 Aiming Circle Download
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65 66 67 68 69 70 71 72 Lightly lubricate 17 stop rings (69) with grease (item 6, appx D). Turn worm shaft (59) until elbow telescope objective end (70) touches body assembly. Then back off one-half turn. Install 17 stop rings (69) with tabs pointed upward and spaced to let rings lie flat. Install and turn adapter (71) until tab (72) of top stop rings fits into notch (73) in adapter. Turn adapter (71) counterclockwise until it stops turning. Back adapter (71) off clockwise until pin holes are alined and install pin (74). NOTE If a new worm was installed, perform steps 71 and 72. Insert 0.003-inch thickness gage blade between adapter (71) and top stop ring. Push down on adapter (71) and using adapter pin hole as a guide, drill a No. 52 hole in worm shaft (59) and ream for No. 6/0 pin. Install pin (74). ARMY TM 9-1290-262-24&P MARINE CORPS TM 00476C-24&P AIR FORCE TO 49A7-3-72/74 73 Install scale dial (75) and knob (76). Install two screws (77) loosely. Tightening will be done during collimation adjust- ments. 3-25