Brake system malfunction

Failure of brake systems in motor vehicles have a direct effect of PA on road safety. The main fault brake system are weak braking action, poor inhibition or jamming of the wheels, uneven brake action of wheels on one axis, ingress of air into the hydraulic drive system and leaking brake fluid. Weak braking action is observed for violations of adjustment brakes and drive, fouled, or oiling the brake pads, air ingress into the drive system and leakage of brake fluid. On some vehicles, the low efficiency of the brakes can also be associated with the violation of the brake booster. Poor rasmormazhivanie wheels due to lack of free movement of the brake pedal, clogging the holes compensating the main brake cylinder, an increase in resistance to reverse movement of the wheel cylinder pistons, weakening or breakage of the return spring pads. The uneven effect of brake wheels on one axle causes slip or a skid car to the side when braking, and is most often due to incorrect adjustment brakes. Ingress of air into the hydraulic drive system reduces the effectiveness of the brakes, which manifests itself in reducing the elasticity by pressing the brake pedal. For normal braking, and this case has to be pressed several times a week. By a leak from the drive as a result of violating the integrity braking system may refuse to work. Diagnosis of technical condition of brake systems in motor vehicles held under running or bench trials. Sea trials can assess the effectiveness of the braking system to slow the vehicle and stopping distance. Tests carried out on an even dry level ground with the adhesion of at least 0.6. The car accelerates to a certain speed and dramatically slow down by pressing on the pedal braking systems working with the clutch. Brake system malfunction in the diagnosis of the exhibit booth during the brake pedal, the gap between the pads and the drum rotating resistance unbraked wheels and speed ottormazhivaniya. Maintenance work on the braking system. This work is to eliminate leaks fluid, removing air from the hydraulic drive, adjust the clearance between the pads and the drum, adjusting freewheel parts and mechanical drive of the parking system, the evaluation of the brake booster. Leakage of fluid from the hydraulic brake system eliminates the tightening screw connections in highway driving, as well as replacement of worn-out hoses, pipes, cups and other items. Air from the hydraulic brake systems in motor vehicles are removed in the following sequence: - Check the brake fluid filling the reservoir master cylinder and if necessary top up the liquid to the rules - remove the rubber cap from the valve / vent the wheel brake cylinder and it put a rubber hose, the end which is immersed in a jar of brake fluid - wrench in half a turn the valve of the air and rapidly press the brake pedal several times - after the release of air bubbles from the hose wrap the valve when the brake pedal and then pumped the remaining wheel cylinders. After pumping hydraulic brake pedal must be purchased when you click "rigidity" and the pedal will be restored within a tolerance. If pumping should constantly add fluid in the filler tank.