15.8. Main brake cylinder

Removal

 PERFORMANCE ORDER

  1. Disconnect the electric socket from the sensor of level of brake fluid.
  2. Disconnect tubes of the brake system from the main brake cylinder and close the opened openings suitable traffic jams.

Brake fluid dissolves paint, plastic and isolation of wires therefore at casual hit of liquid on a paint and varnish covering of the car or its components wash out their large number waters.

  1. Turn off nuts of fastening of the main brake cylinder and remove the main brake cylinder. Inhaling moment: 8–12 N • m.

Dismantling

 PERFORMANCE ORDER

  1. Remove a stopper and merge brake fluid from a tank.
  1. Turn out screws and, using the screw-driver as the lever, remove a tank from the main brake cylinder.
  1. Remove a lock ring.
  1. The screw-driver press primary piston, get a cylindrical pin and remove primary piston.
  1. The screw-driver press the secondary piston, get a cylindrical pin and remove the secondary piston.

Do not disassemble primary and secondary pistons.

Check

 PERFORMANCE ORDER

  1. Check the internal surface of the case of the main brake cylinder for lack of a rust and development.
  2. Check the main brake cylinder for lack of wear or damages. If necessary clear or replace the main brake cylinder.
  1. If the opening of the case of the main brake cylinder is damaged, replace the main brake cylinder assembled.
  2. For removal of pollution clear the case of the main brake cylinder isopropyl alcohol.

Assembly

 PERFORMANCE ORDER

  1. Grease with the recommended brake fluid the internal surface of the main brake cylinder and the external surfaces of primary and secondary pistons.
  1. Accurately insert two springs and pistons into an opening of the main brake cylinder.
  1. Press pistons and establish the holding ring.
  1. The screw-driver press the piston and establish a cylindrical pin.
  2. Establish two condensing rings.
  1. With effort insert a tank into the condensing rings of the main brake cylinder.

Installation

 PERFORMANCE ORDER

  1. Install the main brake cylinder on the vacuum amplifier of brakes.
  2. Establish the main brake cylinder and the vacuum amplifier of brakes on a partition of a motor compartment.
  3. Connect brake tubes to the main brake cylinder.
  4. Attach a vacuum hose to the vacuum amplifier of brakes.
  5. Connect draft to a pedal of a brake and establish a pin with a head and an opening under the forelock and fix it by the new spring forelock.
  6. Fill in brake fluid and remove air from a hydraulic contour of the brake system.

Do not try to repair the vacuum amplifier of brakes as he non-demountable type.