Contents: General information ⇓ Master cylinder ⇓ Pressure regulator ⇓ Vacuum amplifier ⇓ Parking brake ⇓ Warnings ⇓
General information
Vehicles described in this manual. equipped with front and rear hydraulic brake systems and a vacuum booster. The front brakes are disc type, the rear ones are disc or drum.
The front and rear brakes are self-adjusting, meaning that wear on the brake linings is automatically compensated for (for disc brakes). To compensate for wear on the drum brake pads, there is a special mechanism that is activated every time the brake pedal is pressed or when the handbrake is applied.
The hydraulic brake system consists of two independent circuits. If one of the brake system circuits fails, the second circuit retains its ability to operate. There is a warning light on the dashboard. which warns about the level of reserve fluid in the tank falling below the permissible level.
Master cylinder
The master cylinder is attached to the vacuum booster using bolts. The vacuum booster is mounted on the engine bulkhead on the driver's side. A large reservoir containing brake fluid is mounted above the master cylinder. This tank is made of plastic and is attached to the cylinder using bushings and a screw. In addition to the brake system, this reservoir also supplies the clutch hydraulic system.
The master cylinder consists of two independent circuits and has independent pistons for two circuits of the brake system.
Pressure regulator
The pressure regulator is mounted on the engine bulkhead, next to the master cylinder. It is designed to reduce the pressure in the rear brakes during emergency braking (to prevent the rear wheels from locking). Under normal conditions, full pressure is applied to the rear brakes. When the preset value of this pressure is exceeded, the pressure in the rear brakes is limited.
The pressure regulator is a maintenance-free element of the system. If the valve is faulty, it must be replaced.
Vacuum amplifier
The vacuum booster operates by creating a vacuum in the intake manifold and is designed to reduce the force on the brake pedal. The booster is mounted on the engine bulkhead.
Parking brake
The parking brake is installed on the rear wheel brakes and is operated by cables. The parking brake is controlled by a lever installed inside the vehicle. When the parking brake is applied on models with rear drum brakes, cables deploy levers that press the shoes against the drum. When the parking brake is applied on models with rear disc brakes, cables deploy levers attached to the screw actuators of the wheel cylinders. These mechanisms move the pistons of the wheel cylinders and the pads are pressed against the brake discs.
Warnings
Below are the most important warnings to read before working on brake system components:
- a) Use only brake fluid that meets DOT 3 properties.
- b) Disc and drum brake linings contain asbestos fibres which can be harmful to your health if inhaled. When working on brake system components, first clean them thoroughly with brake cleaner. When cleaning brake system components, wear a respirator and do not blow out the brakes with compressed air.
- c) Be very careful and attentive when servicing the brake system. Do not use parts or fasteners of inadequate quality. Make sure that all clearances and tightening torques for connections are correct Technical data. If you are unsure of your abilities, contact a service station. After performing any work on the brake system, first check its functionality in a safe place before driving on public roads.
- d) If a malfunction occurs in the braking system, you must stop driving until it is fixed.
The original text can be found on: mazbook.ru