TM 9-2320-209-20-3-2 FRAME 3 1. Put trailer service air line (1) in place on fitting (2). 2. Using 5/8-inch open end wrench, screw on and tighten coupling nut (3). 3. Put air hydraulic cylinder airline (4) in place on fitting (5). 4. Using 1 3/16-inch combination box and open end wrench, screw on and tighten coupling nut (6). 5. Put air hydraulic cylinder breather line (7) in place on fitting (8). 6. Using 5/8-inch open end wrench, screw on and tighten coupling nut (9). GO TO FRAME 4 13-114