TM 9-2350-277-20-4REPLACE COMMANDER’S CUPOLA HOLD-OPEN HOOK AND BUMPER (M113A3,M1059A3, M58, AND M1064A3 ONLY) — Continued0494 004. Remove locknut (6), two washers (7), spring (8), two spacers (9), hook (10), and screw (11) from cupola.5. Remove nut (12), washer (13), bumper (14), and washer(s) (15) from cupola bracket.INSTALLATIONNOTEInstall washer(s), as needed, to compress bumper 1/4 inch (6 mm) when hold-open hook isengaged.1. Install washer(s) (15) and bumper (14) in cupola bracket. Secure with washer (13) and nut (12).2. Align hook (10), two spacers (9), spring (8), and two washers (7) with cupola bracket. Secure with screw (11) andlocknut (6).0494 00-2
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