Brake shoes. At movement on the damp road it is recommended to press from time to time a brake pedal for drying of blocks and brake disks or drums.

After installation of new brake shoes they should be earned extra. On the first 200 km of run it is not recommended to brake sharply needlessly.

Korrodirovannye brake disks cause vibration of blocks when braking — it is necessary to replace them.

The vacuum amplifier of brakes reduces effort on a brake pedal, facilitating thereby driving. It works only at the working engine. If the vacuum amplifier is faulty, for effective braking it is required to put additional effort to a brake pedal.

Fig. 1.58. A broad tank of brake system without ABS

Fig. 1.59. Broad tank of brake system c ABS

Level of brake liquid should be between labels of "MIN" and «MAX» of a broad tank (fig. 1.58 and 1.59) . At low emergency level the alarm lamp in a combination of devices lights up.

At car operation level of brake liquid gradually decreases with increase in wear of brake shoes. At sharp decrease in level of brake liquid it is necessary to check tightness and a condition of brake system at car service station.

Brake liquid absorbs moisture which causes corrosion of details of brake system and reduces a boiling point of brake liquid. At sharp braking it leads to formation of the steam jams reducing operability of system and efficiency of braking. Therefore replacement of brake liquid is necessary for making every 2 year. It is recommended to apply brake FMVSS 116 DOT 4 liquid.

PREVENTIONS 1. It is necessary to replace all brake shoes established on one axis of the car, even in case of limiting wear of only one block. If blocks are repeatedly established, before removal they are necessary for marking. 2. When braking because of an istiraniye of blocks the dust which contains asbestos, unhealthy is formed. Therefore when cleaning brake shoes try to exclude its inhalation. 3. Brake liquid is poisonous and destroys a paint and varnish covering of a body of the car.