The device and repair of the brake system VAZ-1111 Oka

Features of the brake system
The car uses a brake system with a diagonal separation of circuits, one of which serves the brake mechanisms of the right front and left rear wheels, the other - the left front...

Features of the vacuum booster device
The amplifier is attached to the bracket plate of the clutch and brake pedals on four studs 6 (pic. 117) with nuts and the main cylinder - to the vacuum booster on two studs 26....

Features of the device of the main brake cylinder
The cylinder is attached to the vacuum booster. Pistons 3 and 4 (pic. 118) activate different circuits. Both pistons take their initial position under the action of springs 7. The...

Features of the pressure regulator device
The regulator is connected to both circuits of the brake system and through it the brake fluid flows to both rear brakes. It is attached in the engine compartment to the left...

Features of the front wheel brake device
The brake mechanism is disc, with automatic adjustment of the gap between the pads and the disc, with a floating caliper. Staple 3 (pic. 120) cast from aluminum alloy together...

Features of the rear wheel brake device
The brake mechanism is drum with manual or automatic adjustment of the gap between the shoes and the drum. Pic. 121. Rear wheel brake: 1 - leaf spring; 2 - brake shoe; 3 - stop...

Possible malfunctions of the brake system
Possible malfunctions of the brake system, their causes and methods of elimination. Increased brake pedal travel Insufficient braking performance Incomplete release of all wheels...

Checking pipelines and connections
To prevent a sudden failure of the brake system, it is necessary to carefully check the condition of all pipelines and connections: metal pipelines should not have nicks,...

Checking the performance of the vacuum booster
Press the brake pedal 5-6 times with the engine off to create in cavities A and E ( see fig. 117 ) the same pressure, close to atmospheric pressure. At the same time, the force...

Adjustment of a drive of brakes
The free travel of the brake pedal with the engine off should be 3-5 mm. Adjustment is carried out by moving the switch 4 (pic. 124) brake light with nuts 5 released. The switch...

Parking brake adjustment
If the parking brake does not hold the car on a slope of up to 30°when the lever is moved by 4-5 teeth of the sector, adjust it in the following order: raise lever 2 ( see fig....

Checking the performance of the pressure regulator on the car
Install the car on a flat area, raise the hood of the car and clean the regulator from dirt. External inspection makes sure that the pressure regulator is not damaged, the plug is...

Removal of air from the hydraulic actuator
Bleeding the brakes is necessary to remove air for the hydraulic drive, which significantly reduces the effectiveness of the service brake system. Air can get into the hydraulic...

Brake Fluid Replacement
In order to prevent air from entering the hydraulic drive system when changing the fluid and spend a minimum amount of time on this operation, adhere to the following rules: they...

Adjustment of a backlash between pads and a drum
The adjustment is carried out in the following order: remove the rear wheels; make sure the drums spin freely (when the shoes touch the drum, release the adjusting nut 9 ( see...

Removal and installation of the vacuum amplifier
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. Disconnect the pusher...

Master cylinder — removal, disassembly and inspection
Removal and installation Disconnect hoses from master cylinder 1 (see fig. 126) and close the openings at the hoses and fittings of the master cylinder to prevent leakage of fluid...

Pressure regulator — removal, disassembly and inspection
Removal and installation The pipelines are disconnected from the regulator by unscrewing the nuts securing it to the mudguard rack of the body, and the pressure regulator is...

Front wheel brake mechanism — removal, disassembly and inspection
Removal and installation Raise the front of the car and set it on stands, remove the wheel. Unscrew the fitting of the pipeline and disconnect the flexible hose from the line; the...

Rear wheel brake mechanism — removal, disassembly and inspection
Removal and installation Raise the rear of the car and remove the wheel and hub cap. Remove the brake drum by unpinning and unscrewing the nut securing the wheel hub bearings....

Parking brake — removal and installation
Removal and installation Install lever 1 (pic. 137) to the lowest position, disconnect the ends of the cables 13 from the levers 9 of the manual drive of the shoes and from the...