Briefly describe the maintenance methods of automobile brake pads.

Automobile brake pads are the core brake components to protect driving safety, and their maintenance needs to take into account daily inspection, usage habits and regular replacement. The specific methods are as follows:

Check the wear condition regularly.

Visual inspection: After removing the tire, observe the thickness of the friction material of the brake pad. The normal thickness is about 10-15 mm. If it is worn below 3mm, it needs to be replaced immediately. Some brake pads are equipped with wear alarm grooves, which will make a metal abnormal sound when worn to the limit, so be alert.

Alarm signal identification: sharp metal scraping sound, brake pedal softening and brake deviation occur during driving braking, and there is a high probability that the brake pads are excessively worn or stuck and need to be repaired in time.

Standardize driving habits and reduce abnormal wear and tear.

Avoid frequent sudden braking, which will make the temperature of brake pads rise sharply, accelerate the aging of friction materials, produce thermal recession and reduce braking performance.

Engine braking is preferred for long downhill sections (low gear limits the speed) to reduce the load of brake pads working continuously for a long time and prevent overheating failure.

It is forbidden to brake the brake pads forcefully immediately after wading. The water film will reduce the friction coefficient, and the high-temperature brake pads will easily expand when exposed to water and contract when exposed to water, resulting in cracking.

Take into account the linkage maintenance of brake disc and brake system.

Brake pads and brake discs work together. If the brake disc has obvious grooves, deformation or the thickness is reduced to the lower limit of the standard, it needs to be serviced or replaced synchronously, otherwise it will aggravate the abnormal wear of the brake pads.

Regularly check whether the brake cylinder is stuck, whether the brake oil is sufficient and not deteriorated. The brake pad will be worn unilaterally due to the stuck brake cylinder, and the deterioration of the brake oil will affect the braking response.

Regular cleaning and rust prevention

Brake pad calipers and guide pins are easy to accumulate dust and rust. During maintenance, one-to-one cleaner can be used to clean up dust and oil stains, and high-temperature grease can be applied to guide pins to protect brake pads from moving smoothly.

When the vehicle is parked for a long time, the brake pad can be slightly braked to make the brake disc fit with the brake disc to reduce the corrosion of the contact surface, but it is not advisable to brake hard for a long time to lock the wheel.

Choose adaptive accessories to avoid inferior products.

When replacing brake pads, it is necessary to choose the original factory or regular word-of-mouth products that match the vehicle model. The friction coefficient of inferior brake pads is unstable, which is prone to the risks of abnormal braking, excessive wear and brake failure.