Service of IZh 2126
1. General information
2. Engine UEPA-331
3. VAZ-2106 engine
4. Cooling system
5. Power supply system
6. Carburetor
7. System of ignition of the engine UEPA-331
8. System of ignition of the VAZ-2106 engine
9. System of production of the fulfilled gases
10. Coupling
11. IZh-2126 transmission
12. VAZ-21074 transmission
13. Cardan transfer
14. Zadny Bridge
15. Forward suspension bracket
16. Back suspension bracket
17. Steering
18. Brake system
18.1. Description of a design
18.2. Pumping of brakes
18.3. Replacement of front brake shoes
18.4. Replacement of back brake shoes
18.5. Removal of the main brake cylinder
18.6. Removal of the vacuum amplifier of brakes and adjustment of a free wheeling of a pedal of a brake
18.7. Removal of pedal knot
18.8. Removal of the signaling device
18.9. Removal of a forward brake hose
18:10. Dismantling of the forward brake mechanism
18:11. Replacement of the back wheel cylinder
18:12. Removal of a back brake hose
18:13. Check of working capacity and adjustment of the drive of the regulator of pressure of back brakes
18:14. Removal of the regulator of pressure of back brakes and its drive
18:15. Adjustment and removal of knots of the parking brake system
19. Electric equipment
20. Body
21. System of ventilation and heating
22. Features of a design of the IZh-2717 car
23. Appendix
24. Care of a car body


18.2. Pumping of brakes

Pumping of brakes is necessary when replacing brake fluid, and also for removal of the air which got to a hydraulic actuator at repair or replacement of separate knots of the brake system.

We perform work together with the assistant to news agency a viewing ditch or the elevator. Air is deleted at first from one contour of system (forward right — back left cylinders), then from another.

We remove protective caps from unions of pumping of all working brake cylinders.

If the union does not manage to be unscrewed, before its pumping it is possible to shift previously a six-sided cap key "on 8" or a high head of the same dimension.

We put on a transparent hose the union of the brake cylinder of the left back wheel and we lower its free end in a vessel with brake fluid.

The assistant presses a brake pedal three-four times with an interval one-two seconds and holds a pedal of pressed.

Key "on 8" we unscrew the pumping union on 1/2-3/4 turns.

By pressing a pedal a part of brake fluid and air are forced out in a vessel, and the pedal falls to a floor. Vials of air are well visible in a transparent hose or in a vessel with liquid. We wrap the union of pumping and we continue pumping until an exit of vials of air does not stop.

During removal of air from system we watch liquid level in a tank of the main brake cylinder, if necessary adding it.

We pump over other cylinder of the same contour — forward right.

Similarly we pump over the second contour of the brake system.

In process of removal of air from system the brake pedal has to become "rigid", i.e. when pressing to pass no more than a half of distance to a floor.

After full removal of air from the brake system at inclusion of ignition the control alarm lamp of critical condition of the brake system usually lights up, indicating that pistons of the signaling device are not on average situation. To displace pistons and by that to extinguish a control lamp, it is necessary to create pressure in the brake system (the assistant has to smoothly, but strongly press a brake pedal, watching a control lamp at the included ignition). At this time slightly we weaken an inhaling of one of unions of brake tubes on the main cylinder, having depressurized a contour of the brake system. If the lamp went out, immediately we wrap the union. If the lamp did not go out, and the brake pedal slowly fell to a floor, then, holding a pedal of pressed, we wrap the union of this contour and we repeat operation with another.

It is possible to adjust the signaling device and in a different way. We unscrew the switch of the control alarm lamp of critical condition of the brake system and we insert a core into the opened opening (see. "Removal of the signaling device"). While the assistant presses a brake pedal, we will depressurize one of contours of the brake system and we watch the core course, resting it against a ball. If the ball entered a piston pro-point, follows, holding a pedal of pressed, to wrap the weakened union. If the ball did not enter a pro-point, we repeat operation with the second contour.

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18.1. Description of a design
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18.3. Replacement of front brake shoes