TM 9-2320-209-34-2-3 c. Disassembly. FRAME 1 1. Take off three screws with self-locking nuts (1) holding upper gasket (2) to bumper bar (3). 2. Take off five screws with self-locking nuts (4) holding lower gusset (5) to bumper bar (3). 3. Take off upper and lower gussets (2 and 5). 4. Do steps 1 through 3 again on other side of bumper bar (3). END OF TASK 19-3