14.2. Pumping of hydraulic system of the drive of brakes

Hydraulic doghouses of the brake system

1 – vacuum amplifier of brakes;
2 – main brake cylinder;
3 – central valve;
4 – compensation tank;
5 – sensor of level of brake fluid;
6 – accumulator of low pressure;
7 – pump block;
8 – electric motor;
9 – inlet valve (NO);
10 – inlet valve (NO);
11 – final valve (NC);
12 – final valve (NC)

Element hydraulic doghouse of the anti-blocking brake system

1 – ABS block;
2 – the damping camera;
3 – electric motor;
4 – compensation tank;
5 – main brake cylinder;
6 – vacuum amplifier of brakes;
7 – pressure accumulator;
8 – brake pedal;
9 – position of primary piston;
10 – central valve;
11 – inlet valve;
12 – sensor of frequency of rotation of a wheel;
13 – support;
14 – final valve

Any hydraulic system works normally if air is removed from it.

PERFORMANCE ORDER
1. Lift the car and fix on support.

Prevention

Liquid in a popolnitelny tank of the brake system has to be supported at the level of 3/4 or is higher in the course of pumping.

During removal of air add only pure liquid recommended by the manufacturer


2. You carry out removal of air in the following order:
      – right forward wheel;
      – left forward wheel;
      – right back wheel;
      – left back wheel.
3. Turn off a cover from the union of pumping and attach to it a hose.
4. Arrange other end of a hose in glass capacity, sufficient volume.
5. Slowly press a brake pedal several times.
6. At the pressed brake pedal a key of OK130 430 019 weaken the union of pumping and let out the air from hydraulic system.
7. Tighten the union of pumping and release a brake pedal.

Inhaling moment: 5,9–8,8 N • m
8. Repeat operations 5-7 until there is a brake fluid without vials of air.
9. Screw a cover on the pumping union.
10. Check correctness of work of a brake.
11. Check lack of leak of brake fluid.
12. Add brake fluid in a popolnitelny tank of the brake system.