A defective brake pressure regulator is recommended to be replaced as an assembly.
To remove, install and replace the brake pressure regulator on a vehicle, you will need: a flat-blade screwdriver, a wrench «at 13», socket wrench (head) «at 13», special key «on 10» for loosening the brake pipe nuts.
1. Release the elastic lever of the brake pressure regulator drive by lifting the bracket up. If necessary, use a screwdriver to slightly open the earring bracket.
2. Disconnect the elastic lever of the brake pressure regulator drive from the earring and remove the earring bracket.
3. Place a container under the junction of the brake pipes with the brake pressure regulator, since a certain amount of brake fluid will flow out from there, and disconnect the four brake pipes from the brake pressure regulator by unscrewing their fastening nuts. Plug the openings of the brake pipes, for example, with protective caps for the bleeders of the wheel brake cylinders. Mark the brake pipes so as not to mix them up when installing the brake pressure regulator.
4. Turn away a forward bolt of fastening of a regulator of pressure to an arm.
5. From the side of the bracket, unscrew the rear brake pressure regulator mounting bolt and remove the brake pressure regulator assembly with the drive.
6. If it is necessary to replace the drive parts, unscrew the fixing lever mounting bolt and disconnect the drive lever from the elastic lever.
7. When connecting the drive lever to the elastic lever, the latch fork must enter the groove on the elastic lever.
8. Install the brake pressure regulator to the vehicle in the reverse order of removal. Please note: the front mounting bolt is longer than the rear.
9. It may happen that the lever spring interferes with the installation of the brake pressure regulator. In this case, move the drive lever by the projection as far forward as possible.
10. After installing the brake pressure regulator, crimp the earring bracket with pliers. Then bleed the brake system and adjust the pressure regulator drive (see «Adjustment of a drive of a regulator of pressure of brakes»).