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 EXTERIOR CATCHES AND BUMPERS (M1064A3 ONLY) — Continued 0480 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 bolt (4) and arm (5). 3. Remove two clevises (3) from chain (6). 4. Remove spring pin (7), handle (8), spring (9), and washer (10) from arm (5). Discard spring pin. Remove arm from hull top plate. 5. Remove two nuts (11) from tee head bolt (4). Remove tee head bolt and spring (12) from latch bolt bracket (13). NOTE Latch bolt bracket for center door section is mounted on right door section. Bracket for right door section does not have four spacers installed. 6. Remove four screws (14), lockwashers (15), spacers (16), and latch bolt bracket (13) from hull top plate. Discard lockwashers. 0480 00-2