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11.2. Pumping of the hydraulic brake system

Prevention

The brake fluid used in hydraulic system of brakes is poisonous therefore at its hit on skin it is necessary to wash out immediately this place a plentiful amount of water. If liquid got into eyes or in an organism, it is necessary to see a doctor immediately. Some liquids have property to ignite easily and can light up even from contact with hot knots of the car. Besides, the liquid used in hydraulic system of brakes dissolves paint and plastic therefore at hit of liquid on a paint and varnish covering of the car wash out it a plentiful amount of water. Also this liquid is hygroscopic, i.e. absorbs moisture from air and therefore the liquid which is stored a long time in open ware is not recommended to be used.

Pumping of hydraulic system of brakes is necessary for removal of air which considerably reduces efficiency of braking. Air can get to hydraulic system owing to depressurization of system at repair, replacement of separate knots or brake fluid. Points the increased course of a pedal of a brake and its softness to availability of air in the drive. Before removal of air check tightness of all knots of the drive of brakes and their connections.
Prevention

Never reuse brake fluid.

When performing operation of pumping of the brake system do not allow the level of brake fluid to fall below the middle of a tank.

If brake fluid left system because of leak in system, find the reason and eliminate leak before further actions.

If the hydraulic system was separated partially and the corresponding precautions were accepted to prevent further loss of liquid, it is possible to pump over only a part of system.

Pumping can be carried out with the assistant or independently, a set of pumping of the brake system. Always act according to the instruction. It is recommended to use a set everywhere where perhaps as it very much simplifies the procedure of pumping. If there is no set for pumping, it is necessary to stock up with the pure capacity and a transparent plastic tube of the corresponding length which has to put on densely on the pumping union. At the same time the help of other person will be required.

Sequence of pumping

If only the partial rassoyedineniye of the hydraulic brake system was made and the corresponding precautions were observed, then it is enough to pump over only this part of system. If pumping of all hydraulic system of brakes is made, carry out pumping in the following sequence.

Models without ABS:

  – the left back;
  – the right forward;
  – the right back;
  – the left forward.

Models with ABS:

  – the left forward;
  – the right forward;
  – the left back;
  – the right back.