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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 MORTAR HATCH INTERIOR RELEASE MECHANISMS (M1064A3 ONLY) — Continued 0481 00 1. Remove two cotter pins (1) from headed pins (2). Discard cotter pins. 2. Remove two headed pins (2) and clevises (3) from tee head bolts (4). 3. Remove two clevises (3) and tube (5) from chain (6). 4. Remove four nuts (7), two tee head bolts (4), and springs (8) from brackets (9). 5. Remove eight screws (10), lockwashers (11), two brackets (9), and washers (12) from cover section (13). Discard lockwashers. 6. Remove four screws (14), lockwashers (15), two strikes (16), and spacer(s) (17) from hull top plate. Discard lockwashers. 0481 00-2