Removing
1. Remove the brake pads from the shield («Rear brake pads - removal and installation») and brake cylinder (see «The working brake cylinder of the back brake mechanism - replacement»).
2. Through the hole in the flange of the hub with an 8 mm hex wrench, we unscrew the four bolts securing its axis.
3. Passing the parking brake cable through the hole in the support shield, remove the axle assembly with the hub and the shield.
4. We fix the shield in a vice with soft pads on the sponges. Using a large Phillips screwdriver with a knob, we unscrew the two screws securing the shield.
5. Remove the shield from the hub axis.
Installation
1. Install the shield in reverse order.
2. We remove air from the hydraulic drive system («Hydraulic brake drive - pumping»).
3. Adjust the parking brake system («Parking brake - adjustment»).