The device and repair of brake system VAZ-2101 Zhiguli

All articles about the device and repair of units and elements of the brake system of the VAZ-2101 Zhiguli car.

The structure of the braking system
The car has two brake systems: service and parking (Fig. 135). The service brake system consists of the brake mechanisms of the front and rear wheels and a hydraulic dual-circuit...

The structure and operating principle of the master brake cylinder
The main brake cylinder is attached to the clutch and brake pedal bracket. Pistons 3 and 4 (Fig. 136) activate different circuits. Both pistons take their initial position under...

Removal, disassembling and checking the master brake cylinder
Removal and installation Disconnect the flexible hoses from the master cylinder and close the openings of the hoses and fittings on the cylinder to prevent fluid from leaking from...

Hydraulic drive reservoir device
The reservoir is a common reservoir for both circuits of the brake hydraulic drive. To ensure independent supply of fluid to each circuit, a partition is made in the housing 10...

Removal, disassembly and installation of the hydraulic drive reservoir
Remove the hoses from the tank tips and drain the liquid from the tank into a container. Plug the hose openings to prevent liquid leakage and dirt from getting into the hoses....

Brake pedal assembly device
The clutch pedal 16 (Fig. 138) and the brake pedal 5 are suspended on the bracket 1 by means of an axis made in the form of a bolt. The axis is secured with a nut 2 in the holes...

Removal and installation the brake pedal assembly
To remove the foot assembly, remove the steering shaft bracket, then disconnect the clutch and brake master cylinders from the pedal bracket. After unscrewing the nuts securing...

Disassembly and assembly of the brake pedal unit
For disassembly, remove the reinforcing spring 12 ( see fig. 138 ), clutch pedals with hook 9, remove release springs 7 and 14, unscrew axle nut 15 and, having removed the axle,...

Checking and repairing the brake pedal assembly
If the pedals move with difficulty, inspect the working surfaces of the pedals, bushings and axle. If shallow scratches or traces of oxidation are found on the surfaces of metal...

The design and operation of the brake pressure regulator
The rear brake drive circuit is connected to a pressure regulator 3 (Fig. 139), which adjusts the pressure in the rear brake drive depending on the position of the body relative...

Checking the performance of the pressure regulator
To check, place the car on a lift or inspection pit and clean the pressure regulator and protective cover from dirt. Carefully remove the protective cover from the pressure...

Removal and installation the pressure regulator
Disconnect lever 4 ( see fig. 139 ) from the rod 7, and then the bracket 5 from the body and the brackets for fastening the pipes going to the pressure regulator. Disconnect the...

Disassembly, inspection of parts and assembly of the pressure regulator
Having unscrewed the plug 6 ( see fig. 140 ), remove gasket 5, take out piston 10, spacer sleeve 3, seal 7, spring plate 8, spring and thrust washer with sealing ring 2. Wash the...

Adjusting the free travel of the brake pedal, bleeding air from the hydraulic drive
The free travel of pedal 3 (Fig. 142) should be 3-5 mm, and the full travel should be about 140 mm. The free travel is adjusted by moving the brake light switch 5 and then...

The design and operation of the front wheel brakes
The front wheel brake mechanism is disc. It consists of the parts shown in fig. 143 (144) calipers 12 (4) complete with working cylinders, brake disc 18, two brake pads 16...

Removal and installation front wheel brakes
Before repairing the brake mechanisms, they are thoroughly washed with warm water and detergent and dried with a stream of compressed air. The use of gasoline, diesel fuel,...

Disassembly, inspection of parts and assembly of front wheel brakes
Disassembly and assembly Disconnect tube 5 ( see fig. 144 ) and remove the dust caps 2 from the cylinders. Then, by forcing a stream of compressed air through the inlet for the...

The structure and operation of the rear wheel brakes
The rear wheel brake mechanism is of the drum type, with self-adjusting shoes, which are actuated by a wheel hydraulic cylinder 7 (Fig. 146). Brake shoes 8 with linings 2, wheel...

Disassembly, assembly and installation of rear wheel brakes
Disassembly Raise the rear of the car, remove the wheel and, having taken measures to prevent fluid leakage from the reservoir, remove the brake drum, for which insert the wheel...

Checking the rear wheel brake components
Pipelines and connections To prevent failure of the brake system, carefully check the connection of all pipelines. During the inspection, ensure that: metal pipes were free of...

Adjusting the clearance between the pads and the rear brake drum
Adjustment procedure: press the brake pedal with a force of 10-12 kgf to ensure that the shoes are pressed against the drum. Holding the shoes in this position, turn the hexagonal...

Design and operation of the parking brake
The parking brake consists of a mechanical drive and rear wheel brake mechanisms. The mechanical drive includes a manual lever 9 ( see fig. 135 ), which is connected via the...

Parking brake repair
Removal and installation Having set the parking brake drive lever to the extreme lower position, disconnect the ends of the cables from the brake shoe drive levers. Loosen the...

Possible brake faults
Possible brake malfunctions, their causes and methods of elimination are given in Table 21.

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More articles from other manuals on VAZ cars:
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