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 2-5. M2A2 AIMING CIRCLE AND ELBOW TELESCOPE—MAINTENANCE INSTRUCTIONS. This task covers: a. Disassembly b. Inspection/repair c. Reassembly d. Service INITIAL SETUP TOOIS and Special Tools Electronic system maintenance References TM 750-116 tool kit (SC 5180-95-CL-B29) Fire control purging kit (SC 4931-95-CL-J54) Materials/Parts Self-sealing screw (2) (8204922) DISASSEMBLY 1 Remove eyeshield (1) and filter (2) from aiming circle (3). NOTE Early models may have only one self- sealing screw (4). 2 If damaged; remove two self-sealing screws (4) from elbow telescope (5). INSPECTION/REPAIR 1 Inspect eyeshield for cracks, splits, and rubber deterioration. 2 Inspect filter for cracks or discoloration. 3 Inspect for broken, damaged, or missing parts. Repair is by replacement of autho- rized parts which do not meet inspection criteria. Refer to appendix C. REASSEMBLY 1 2 If removed, install two new self-sealing screws (4) in elbow telescope (5). Install filter (2) and eyeshield (1) on aiming circle (3). SERVICE Purge elbow telescope if optics are cloudy, or show traces of humidity. Refer to TM 750-116. 2-7