All articles about the device and repair of units and elements of the brake system of VAZ-21213 Niva cars.
Brake system diagram The diagram of the brake system is shown in fig. 6-1. Pic. 6-1. Brake system diagram: 1 - rear brake wheel cylinder; 2 - rear parking brake cable; 3 - rear cable guide; 4 - front...
Checking pipelines and connections To prevent sudden failure of the brake system, carefully check the condition of all pipelines: metal pipelines should not have dents, cracks and should be located away from sharp...
Checking the performance of the vacuum booster Press the brake pedal 5-6 times with the engine off to create in cavities A and B (pic. 6-2) the same pressure, close to atmospheric pressure. At the same time, by the force...
Adjustment of a drive of brakes The free travel of the brake pedal with the engine off should be 3-5 mm. This value is obtained by adjusting the position of the switch 7 (pic. 6-3) stop signal. Pic. 6-3. Brake...
Parking brake adjustment Note. At the end of 1995, the design of the gear sector of the parking brake lever changed - the initial tooth of the sector became double and the adjustment procedure changed,...
Checking the performance of the pressure regulator Place the vehicle on a lift or inspection ditch, clean the pressure regulator and protective cover from dirt. Carefully remove the protective cover from the pressure regulator,...
Adjusting the position of the pressure regulator If the bolts securing the pressure regulator are loosened, then adjust its position by first hanging the rear axle of the car. Then disconnect lever 4 (pic. 6-5) from rod 8 and...
Removal of air from a hydraulic drive of brakes The air that got into the brake hydraulic drive when replacing pipelines, hoses, sealing rings or when the system is leaking causes an increase in the free play of the brake...
Clutch and brake pedal bracket Removal and installation To remove the pedal bracket: remove the steering shaft bracket as directed in section « Steering »; Disconnect the pusher of the vacuum booster from the...
Vacuum booster — removal and installation When removing the vacuum booster, the main cylinder of the hydraulic brake drive is not disconnected from the hydraulic system so that air does not enter it. Withdrawal procedure:...
Brake Master Cylinder The device of the main cylinder is shown in fig. 6-9. Pic. 6-9. Master cylinder: 1 - cork; 2 - cylinder body; 3 - front brake drive piston; 4 - washer; 5 - piston of the rear...
Front brake device The front brake device is shown in fig. 6-12. Pic. 6-12. Front wheel brake: 1 - cylinder block; 2 - brake pads; 3 - clamping lever of the caliper; 4 - protective cover; 5 - axis...
Removal and installation of a forward brake Cleaning Before repairing the brakes, wash them thoroughly with warm water and detergent and dry immediately with compressed air. Warning: Do not use gasoline, diesel fuel,...
Disassembly and assembly of the front brake Remove cotter pins, then axle 5 ( see fig. 6-12 ), while holding the clamping levers 3 so that the springs do not pop out. Remove the pressure levers and their springs, and then...
Checking Front Brake Parts Carefully check all parts by first washing them with warm water and detergent and drying them with a jet of compressed air. If signs of wear or seizure are found on the pistons...
Checking brake disc runout Check the axial play of the brake disc without removing it from the vehicle (pic. 6-15). The greatest admissible beating on the indicator - 0,15 mm; if the runout is greater, then...
Replacing the front brake pads Replace the pads with new ones if the thickness of the pads has decreased to 1.5 mm. To replace pads, do the following: unpin the axle of the upper clamping lever, remove it and...
Rear brake device The rear brake device is shown in fig. 6-17. Pic. 6-17. Rear wheel brake: 1 - wheel cylinder; 2 - the upper coupling spring of the shoes; 3 - overlay pads; 4 - brake shield; 5 -...
Removal and disassembly of the rear brake Raise the rear of the car and remove the wheel. Take measures to prevent leakage of fluid from the tank. Puller 67.7823.9519 (pic. 6-18) remove the brake drum. Disconnect from...
Assembly and installation of the rear brake Assemble and install as follows. Install and secure the wheel cylinder on the brake shield, attach the pipeline to it and tighten the nut of its fitting to failure. Attach the...
Disassembly and assembly of the rear wheel cylinders Dismantle and assemble the wheel cylinders as follows. Remove protective caps 2 (pic. 6-19), then press the pistons 4 complete with the parts of the device for automatically...
Checking the rear brake parts Wheel cylinders Check the cleanliness of the working surfaces of the cylinder, pistons and thrust rings. Surfaces must be perfectly smooth and free of roughness to prevent fluid...
Checking the wheel cylinders of the rear brakes on the stand Install cylinder 2 (pic. 6-21) on the stand, attach the pipeline from the pressure gauges to it and pump the system. Pic. 6-21. Scheme for checking the wheel cylinders of the rear...
Rear brake pressure regulator Removal and installation Disconnect lever 12 (pic. 6-22) from the rod 7, and then the clip 18 from the bracket 14 and the bracket for fastening the pipelines going to the pressure...
Checking and repairing the parking brake Carefully check the condition of the parking brake parts. If a break or rubbing of the wires is detected, replace the cable with a new one. Make sure that the sector teeth and...