11:10. Removal, recovery repair and installation of supports of disk brake mechanisms of forward wheels

Remember that the dust produced in the course of operation of brake mechanisms may contain extremely unhealthy asbestos of the person. Do not blow off dust compressed air at all and do not inhale it, - at service of mechanisms put on a protective mask or a respirator. Do not use for rubbing of components of the brake system gasoline or solvents on an oil basis at all, - apply only company cleaners or methyl alcohol!

Supports of both brake mechanisms of one axis have to change at the same time.



  1. Remove brake shoes (see the Section Replacement of Blocks of Disk Brake Mechanisms of Forward Wheels).
  2. Uncover the tank of brake fluid.
  3. Fill the tank with fresh brake fluid to the top edge. Close a cover and stick an air vent.
  4. Turn a steering wheel so that the brake support was turned outside.
  5. Disconnect a pressure head hose from a support do not lose sealing rings of a hollow bolt.

Fastening of a pressure head hose of a support

You watch purity around a brake hose and a support. Dirt should not get to the brake system.

  1. Turn out bolts of fastening and disconnect assembly of a support that a rotary fist.

Bolts of fastening of a support to a rotary fist


The supports applied on models of diesel 1.7 l and 2.0 l are not subject to recovery repair and in case of violation of serviceability of functioning are replaced assembled.


  1. Transfer a support to a workbench and carefully clear it of dirt and a rust with application of a special cleaner or methyl alcohol.

Do not apply to rubbing of brake mechanisms solvents on an oil basis at all!

  1. Take the piston from the cylinder of a support and remove a boot. The piston has to be taken out freely by a hand, - in case of need connect to its union a source of compressed air with the low pressure of giving (most reasonable to use the foot pump) and lay wooden whetstone between the piston and a bracket of a support.

On models with a monolithic anchor bracket the piston is manufactured of plastic.

  1. Having hooked the plastic applicator, take a piston cuff from the cylinder, - try not to damage a cylinder mirror.

Extraction of a sealing cuff of the piston from a landing flute in the support cylinder

  1. Vypressuyte from the support case the directing plugs.
  2. Carefully wash out all components a special cleaner and dry them compressed air, - do not forget to put on goggles.
  3. Replace the damaged and worn-out details. Attentively study a condition of working surfaces of the piston and cylinder, in case of detection of defects replace the corresponding components. Check a condition of the directing fingers and drillings under their landing, - fingers have to be free from damages and it is rather easy to move in the landing nests. In case of lack of confidence in definition of a condition of components make their replacement.
  4. If installation to the place of an old support is supposed, prepare all necessary repair details. Sealing cuffs and boots of pistons are subject to replacement without fail.
  5. Before assembly make sure of absoluteness of purity and dryness of all components.
  6. Lower the piston and a new sealing cuff in pure brake fluid, grease with it a cylinder mirror.
  7. Fill with fingers a cuff in a cylinder flute, - use of any tools is fraught with damage of a working surface! Fix a new boot on the piston, turn out it an external edge up, then fill the piston in the cylinder. Carefully drown the piston in the cylinder, in order to avoid distortions making it rotary progress, - the external edge of a boot has to get to a reception flute on a support.
  8. Fill the directing plugs in the support case.



  1. Establish a support on a rotary fist and tighten fastening bolts with effort of 95 Nanometers.
  2. Establish brake shoes (see the Section Replacement of Blocks of Disk Brake Mechanisms of Forward Wheels).
  3. Tighten a hollow bolt of a brake hose with effort of 40 Nanometers.
  4. Check a possibility of movement of a support.
  5. Remove air from a hydraulic path of the brake system (see the Section Pumping of the Brake System).
  6. Establish forward wheels so, lower the car on the earth and tighten bolts of fastening of wheels with effort of 110 Nanometers.