TM 9-2350-277-20-4REPLACE MORTAR HATCH EXTERIOR CATCHES AND BUMPERS (M1064A3 ONLY) —Continued0480 001. 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 hulltop plate.5. Remove two nuts (11) from tee head bolt (4). Remove tee head bolt and spring (12) from latch bolt bracket (13).NOTELatch bolt bracket for center door section is mounted on right door section. Bracket for rightdoor 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. Discardlockwashers.0480 00-2
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