TM 9-2350-277-20-4REPLACE MORTAR HATCH COVERS (M1064A3 ONLY) — Continued 0482 00REMOVALWARNINGMortar hatch sections must be in a vertical position to release torsion spring tension beforeremoving torsion spring brackets.NOTEThere are three mortar hatch sections. Remove and install all three the same way. Left sectionis shown.1. Remove two screws (1), washers (2), bracket (3), and spacers (4) from hull top plate.2. Support door (5). Remove two springs (6), shield (7), two spacers (8), and door from hinges (9) and (10). Remove sixsprings from shield for right door section.3. Remove four screws (11), washers (12), two hinges (9)(10), and spacers (13) from hull top plate.4. Remove two seals (14) from door (5). Discard seal.5. Remove two seals (1) and two seals (2) from center door. Discard seals.6. Remove canvas strap (3) from door (4).0482 00-2
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