TM 9-2320-209-20-3-2 c. Bleeding Wheel Cylinders. CAUTION Air hydraulic cylinder must be bled before bleed- ing wheel cylinders or brakes will not work properly. NOTE When a brake line has been taken off at only one wheel, bleed the wheel cylinders at that wheel only. When all wheel cylinders must be bled, start with wheel cylinder furthest away from master cylinder. FRAME 1 1. Fill master cylinder. Refer to para 13-16a. 2. Using clean cloth, clean bleeding screw (1). 3. Put one end of bleeding hose (2) on bleeding screw (1). 4. Put other end of bleeding hose (2) into transparent container (3). Put hydraulic fluid into container until it is 1/2-full. Make sure that end of bleeding hose (2) is below level of fluid in container (3). GO TO FRAME 2 13-131