TM 9-2320-209-34-2-3 e. Assembly. FRAME 1 I Soldier A 1. Working outside back panel (1), put glass frame assembly (2) and frame cap (3) in place. Soldier A 2. Aline screw holes and put in and hold 22 screws (4) . Soldier B 3. Working inside back panel (1) , put on 22 washers (5) and 22 nuts ( 6). GO TO FRAME 2 21-125