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 DRIVER’S HATCH HOLD-OPEN HOOK AND BUMPER (M577A3 AND M1068A3 ONLY) — Continued 0533 00 INSTALLATION 1. Install block (1) on hull bracket and secure with two screws (2), four washers (3), and two new locknuts (4). 2. Install hook (5), two spacers (6), and spring (7) in hull bracket. Secure with screw (8), two washers (9) and new locknut (10). NOTE Install washers (11) and (13) as needed to compress bumper 1/4 inch (6 mm) when hook is engaged. 3. Install washer(s) (11) and bumper (12) on hull bracket. Secure with washer(s) (13) and nut (14). 4. Install hook (15) on quick-release pin (16) and chain (17). Squeeze both ends of hook to secure. 5. Install tube (18) on chain (17). 6. Install hook (19) on chain (17) and hull bracket. Squeeze both ends of hook to secure. FOLLOW-THROUGH STEPS 1. Open and close driver’s hatch cover and engage hook to check that hook and bumper are properly installed. Open and close driver’s hatch cover and engage hook to check that hook and bumper are properly installed. END OF TASK 0533 00-3/4 blank