Piston Housing Backup ring Fluid pressure O-ring Anti-rattle clip Backing plate lining puck Disk Pressure plate lining puck Pressure plate Housing Piston Cylinder head Brake caliper Brake disk 13-73 Figure 13-122.  Goodyear brake lining replacement requires that the wheel be removed from the axle to access the brake assembly. The  lining pucks slip into recesses in the brake housing. Figure 13-121.  Back-up rings are used to keep O-rings from  extruding into the space between the piston and the cylinder. They  are positioned on the side of the O-ring away from the fluid pressure. The rivets that hold the linings on the pressure plate and back  plate are removed with a knockout punch. After a thorough  inspection, new linings are riveted to the pressure plate and  backplate using a rivet clinching tool  [Figure 13-124]  Kits are  sold that supply everything needed to perform the operation. The brake is reassembled in the reverse order. Be certain to  include any shims if required. The bolts holding the backplate  to the cylinder assembly must be torqued according to  manufacturer specifications and safetied. The manufacturer’s  data also provides a burn in procedure. The aircraft is taxied  at a specified speed, and the brakes are smoothly applied.  After a cooling period, the process is repeated, thus preparing  the linings for service.  remains between the inner and outer lining when the wheel  is removed. Extract the disc to provide access to the old  lining pucks. These can be removed from the cavities in the  housing and replaced with new pucks. Ensure the smooth  braking surface of the puck contacts the disc. Reinsert the disc  between the linings. Reinstall the wheel and anti-rattle clips.  Tighten the axle nut in accordance with the manufacturer’s  instructions. Secure it with a cotter pin and lower the aircraft  from the jack.  [Figure 13-122] The popular Cleveland brake uniquely features the ability  to change the brake linings without jacking the aircraft or  removing the wheel. On these assemblies, the torque plate  is bolted to the strut while the remainder of the brake is  assembled on the anchor bolts. The disc rides between the  pressure plate and back plate. Linings are riveted to both  plates. By unbolting the cylinder housing from the backplate,  the backplate is freed to drop away from the torque plate. The  remainder of the assembly is pulled away, and the pressure  plate slides off of the torque bolts.  [Figure 13-123] Cleveland Brakes