TM 9-2320-209-20-3-2 b. Replacement. FRAME 1 1. Put pintle hook (1) in bracket (2). 2. Put washer (3) in place. Screw on nut (4). 3. Put prybar (5) through pintle hook (1) to keep it from turning. 4. Using 2 3/16-inch wrench, tighten nut (4) until holes for cotter up. Take out prybar (5). Hold prybar. pin (6) line 5. Put cotter pin (6) in place. Using pliers, bend open ends of cotter pin. END OF TASK 16-11