TM-9-2350-277-20-4 Unit Maintenance Manual Volume 4 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-4 REPLACE COMMANDER’S CUPOLA HOLD-OPEN HOOK AND BUMPER (M113A3, M1059A3, M58, AND M1064A3 ONLY) — Continued 0494 00 4. 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. INSTALLATION NOTE Install washer(s), as needed, to compress bumper 1/4 inch (6 mm) when hold-open hook is engaged. 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) and locknut (6). 0494 00-2