TM 9-2350-277-34REPAIR COMMANDER’S CUPOLA (M113A3, M1059A3, M1064A3, AND M58 ONLY) —Continued0051 0017. Remove two screws (15), washers (16), and striker (17) from cupola cover.18. Remove heads of three drive screws (18) and clip (19) from cupola (20).NOTEThere are five vision block locks and five seals on the commander’s hatch. All are removed thesame way.NOTECommander’s center vision block is held in place by two thumbscrews.19. Remove thumbscrew (21) from arm (22).20. Remove spring pin (23) from arm (22). Discard spring pin.21. Remove arm (22) and washer (24) from hull bracket.0051 00-5
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