Removal and installation of the brake mechanism of a forward wheel

Raise the front of the car on stands and remove the wheel from the desired side. Unscrew the fitting and disconnect the flexible hose from the wheel cylinder. Plug the hose hole. Disconnect the brake pad wear sensor connector. Loosen the mounting bolts and remove the guide assembly with the caliper and cylinder. Install the brake mechanism in the reverse order of removal. After installation, bleed the hydraulic drive to remove air from it.

Removal and installation of a brake disk

Raise the front of the car on stands and remove the wheel from the desired side. Remove brake assembly. Loosen the screws securing the brake disc and remove it. Install the brake disc in the reverse order of removal.

Checking brake disc runout

Remove the wheel and screw the bolts of its fastening into the holes of the disc, placing spacers 19 mm long under them. Verify that play in the hub bearings will not affect the results of this test. Bring the leg of the pointer indicator to the working surface of the disk and check its axial runout, which should not exceed 0.15 mm.

Dismantling and assembly of the wheel cylinder

Remove the caliper, remove the protective cover (pic. 6.6) and using compressed air to push the piston, placing a wooden pad under it (pic. 6.7).





Remove sealing ring from cylinder (pic. 6.8).



Thoroughly clean all parts, install a new sealing ring in the cylinder groove, lubricating it with brake fluid. Install protective cover. lubricate with brake fluid and install the piston.