The first step to replace or remove the rear brake disc requires disabling electrical power to the
Air Suspension system by switching the air suspension service switch to off to avoid sudden air spring pressure changes that may impact vehicle stability during operations. Depowering should also be performed on vehicles that incorporate fire suppression systems. The
Brake Pads must be taken off after placing the vehicle in neutral mode and setting it on a hoist. Remove the access plug from the adjustment hole after which an adjusting tool can be used to retract the parking brake shoe while rotating towards the backing plate through the far end of the access plug slot. The disc brake installation procedure starts by removing the old brake disc for a new one unless the machine reveals specifications are suitable for extending its service life. In these cases, use a hub-mount brake lathe to finish repolishing the degraded disc. The brake disc along with wheel and
Wheel Hub should get cleaned with brake parts cleaner until all rust and foreign material disappears. After cleaning, apply anti-seize lubricant on both the hub flange and pilot area. The installation process for a new brake disc should start by following the removal steps in reverse order while switching back the air suspension service switch to on position if present and powering up the fire suppression system if required.