- How to determine the need to replace the brake pads. When to change the pads
How to determine the need to replace the brake pads. When to change the pads
Brake pads are one of the few parts of the car that work "friction". Therefore, their depreciation and replacement are inevitable.
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what determines the rate of wear of brake pads
Wear out faster than the other brake pads on the front wheels. Due to the fact that at the time of braking is the weight transfer of the car with the transfer of the greater part of the front of the vehicle, the load on the front axle of the car is considerably bigger than the rear, therefore the brakes and front wheels are loaded more back. Moreover, this difference is rather noticeable, due to front brake pads wear about two to three times faster than the rear.
Significantly affect the rate of wear of brake pads the vehicle's weight, the design of the brake mechanism, the material of both the brake pads and brake discs or drums. During operation of the vehicle in the warmer months its speed is higher and the intensity of execution of the various maneuvers above, than in winter.
A lot depends on driving behavior: drivers who prefer aggressive driving style with sudden accelerations and emergency stops, the brake pads wear out faster than the motorists that perform all maneuvers smoothly and gently.
Signs of wear brake pads
That order the brake pads are worn, you will prompt the car itself. The main thing – to notice and correctly interpret the signals that inevitably will supply the machine. Increasing a brake way of the car or his departure from a straight trajectory will indicate malfunctions in the brake system.The increase of the working stroke of the brake pedal, its "mitigation" in company with the decrease of the brake fluid level will witness the need to check and service brakes.
The brake pad wear indicate too abrupt brake application when a wheel lock occurs abruptly. Most likely, a friction facing consisting of synthetic rubber, resins and various modifiers, completely worn out and braking takes place by friction of the metal part of the pads on the brake drum or disc.
As a result of wear of the brake pads during hard braking felt the beating of the wheel. If the situation is left unattended, ignoring abnormal noises and creaks, produced the brake mechanism riding with these brakes may end up jamming the pads, with the consequent blocking of the wheel or its destruction, resulting in the brakes corny refuse. Well, if the speed of the vehicle at this point will be low...
A good indicator of the condition of brake pads is the plaque on the surface of the wheels. As long as he coal, dark-colored, state-of-the pads need not worry. If it appears the metallic inclusions, posing as a gloss, so friction facing has a decent wear, from what started scratching pads brake disc. For ventilated brakes and wheels with alloy wheels, this diagnostic method is not applicable.
How to determine the resource of brake pads
Some manufacturers equip their manufactured brake pads with special sensors. Mechanical devices monitor the wear pads upon reaching the friction layer lining the critical value emit a squeak. Electronic devices in this case send a signal to the control unit of the vehicle, signalling about the wear indicator is turned on in control panel.
About the wear pads can be judged by special transverse grooves, located on the protective pads. If the pads are worn down to the base of these bars – brake pads time to change.
Minimum admissible thickness of frictional overlays brake pads is considered as the value of 2-3 mm. the Exact value of the thickness of the lining can be learned from the technical description of the car and the technical characteristics of brake pads.
Do not tighten with replacement brake pads – take care of your health!