What details should I pay attention to when replacing brake pads?

Before replacing the brake pads, the first step is to check the position of the brake fluid, because when replacing the brake pads, the oil in the brake fluid circuit will be pushed back to the top, if the brake fluid level is relatively high, it will cause the oil to overflow. If this is the case, you need to unscrew the upper cover to remove the brake fluid to avoid oil spillage.

In addition to checking the brake fluid, the wear of the brake discs and pads needs to be further checked. Check the brake disc for scratches and the brake pads to the thickness of replacement.

Once you've checked your brake discs and pads, it's time to replace your brake pads. First of all, you need to remove the circlip, because on the disc brake disc, there is a metal circlip, and the fixation of the brake pad and brake caliper depends on it. The process of removing it is also relatively simple, using a modified cone to remove it.

However, it should be noted that the installation position and method sequence of the circlip are different for different models, so you need to pay more attention when disassembling it to facilitate reinstallation.

In daily life, many car owners often do not run to repair until there is a problem with the brake pads, which is extremely detrimental to the safety of both the vehicle itself and the driver. Therefore, it is necessary to know more about the basic knowledge of brake pads and pay more attention to the selection and use specifications of brake pads.

Wear and replacement of brake pads.

Everyone's driving habits are different, so the degree of wear and tear of brake pads is also different.

Generally, the first replacement can be in 6-70,000 km. It also depends on your driving habits and use environment. Some cars are equipped with induction wires on the brake pads, and when they are worn to a certain extent, they will display a prompt on the instrument to replace the brake pads; And some do not have an induction line, when worn to the limit, when the brake is stepped on, the metal reed on the brake pad contacts with the brake disc to make a "squeak" metal squealing sound, so as to remind the replacement of the brake pad.

Check whether the brake shoes and brake discs are thin in a simple way, you can use a small flashlight to observe and check, when the inspection finds that the black friction material of the brake shoes is about to wear out, when the surface of the brake disc has been worn to a depth of more than 1 mm, it must be replaced.

The type of brake pads and other specific circumstances.

In real life, it is often the case that one brake pad can be used for 50,000 km or 60,000 km in one car, and it may only be used for 25,000 km in another car and must be replaced. The frequency of the vehicle stopping and driving on the road is an important factor, generally speaking, the replacement cycle of the brake pads of the car that runs on the city road for a long time is significantly shorter than that of the vehicle that runs on the highway for a long time, the replacement cycle of the car on the mountain road is shorter than that of the flat road, and the replacement cycle of the truck is shorter than that of the light car.

Therefore, there is really no "authority" that can say exactly how long the brake pads will last, only one thing is certain - check the wear of the brake pads frequently.

Under normal circumstances, when the car has traveled 100,000 kilometers, it is best to update the clutch and brake pads of the car, which can inject new vitality into the car and improve the driving performance of the car.

It should be noted that after replacing the new brake pads, be sure to step on the brakes a few times to eliminate the gap between the shoe and the brake disc. Special tools must be used to push the brake cylinder back up. It cannot be hard pressed back with other crowbars, which can easily cause the brake caliper guide screw to bend and make the brake pads stuck.

Brake pads need to be changed once for 3 to 60,000 kilometers. In the braking system of a vehicle, the brake pads are the most important object, and the quality of the brakes is determined by the brake pads.

After changing the brake pads, you should pay attention to a lot. You can carefully observe each car, most of the wear of the brake disc is not particularly smooth, are some grooves, because the brake pad in the manufacturing process, there are some relatively large metal particles in it, the metal particles are relatively hard, and the friction with the brake disc is equivalent to iron grinding iron, so the wear will be relatively large. The brake pads are worn unevenly and then replaced with flat brake pads.

In this way, the place where the brake disc is recessed will not be able to contact the new brake pads, and the overall contact area between the two will be smaller, the friction will be smaller, and the brakes will become softer.

So this is a normal phenomenon, only after a few hundred kilometers, the two can fully contact and the brakes can return to normal. Therefore, when you just put on a new film, you need to step on the brakes in advance to prevent you from being able to brake near the front. If you need to replace the brake pads of the drum brake, it is recommended to ask a professional to go to a professional repair shop to operate it to avoid mistakes.

After the brakes are installed, the tires should be reset. When installing tire screws, they should be tightened diagonally to protect the tire and brake hub. Brake pads and discs wear out after a period of use and need to be replaced when worn to a certain extent.

After replacing the brake pads with new ones, the contact surface between the brake pads and the brake disc fails to achieve optimal contact, which affects the braking performance, and the so-called "so-called" will occur"Brakes"Circumstance. The feeling of the space in the car is not too satisfying, the trunk opening is relatively small, and there is not much space to put the baby's stroller in, and I feel that his space is not very satisfied. The control performance is average, and I've seen someone comment on some forums before, but in actual operation, it still takes some strength.

Therefore, the new brake pads need to be run-in, so that the contact area between the brake pads and the brake disc is increased, and the braking effect is better. Also check whether the wear of the tread and edges is normal, and it is best to replace the left and right wheels regularly, which is conducive to prolonging the life of the tire. Finally, check the brake fluid.

Regularly check the thickness of brake pads or brake shoes.

1.The brake pedal of the car is under the steering wheel, and when the brake pedal is pressed, the brake lever is pressurized and transmitted to the brake pad on the brake drum to jam the brake wheel, so that the car slows down or stops running. The manual brake of the car is next to the gear shift and is connected to the brake bar.

Bicycle brakes are also common, which are decelerated by rod brakes fixed to the frame or disc brakes.

2.The brakes are accomplished by the intense friction between the brake pads and the brake drums.

3.The principle of braking is to convert the kinetic energy of the car into heat energy and consume it, and the kinetic energy comes from the power provided by the engine, which needs to be provided by the work of fuel combustion, which means that if you step on the brakes once, it means that your gasoline will be wasted. So, please remember the first point:

When driving, apply the brakes as little as possible, and braking is only for comfort or in an emergency.

4.Many brakes are emergency brakes as a last resort, so you must pay attention to the braking skills. There are two situations discussed here, one is the vehicle without the ABS anti-lock braking system, and the old vehicles are basically like this.

When this kind of vehicle encounters emergency braking, if the braking force is too large, it may make the car tires lock (the tires do not rotate at all), we can often see two black brake marks that drag a long time on the road, which is the traces of friction between the tires and the ground when the car brakes without ABS, the tires will no longer rotate after the tires are locked due to emergency braking, but the huge inertia will make the tires of the car rub against the ground and continue to slide forward, The violent friction between the tire and the ground caused a black mark on the rubber particles that had been rubbed off on the tire. At this time, if you force the direction, it will often have serious consequences such as deviation, side slippage, tail flicking, or even rollover out of control.

Steps and precautions for replacing brake pads:

1. First of all, you need to lift the car and remove the tires of the car.

2. Remove the screws that fix the brake caliper, lift the brake caliper, and remove the old brake pads that are seriously worn.

3. Push the brake piston back and install the new brake pads.

4. Reinstall the brake caliper and screw the screws to the required position, not too tight or too loose.

5. Then install the tires of the vehicle back, and the brake pads will be replaced successfully.

After the owner replaces the brake pads, you can try to drive the vehicle and use the brakes to see if the function is normal, if the brake function is not normal, it means that the brake pads are installed incorrectly and need to be replaced. If the brake pads are functioning properly, the vehicle is ready to hit the road. Although the tutorial for replacing brake pads seems very simple, car owners who have no experience in replacing brake pads are still recommended to go to a 4S shop to replace brake pads.

<> "What points need to be paid attention to when replacing car brake pads.

The braking system of a car is one of the key components to ensure driving safety, and brake pads are one of the most wearable parts of the brake system. In use, it is necessary to check and replace the brake pads regularly to ensure driving safety. However, there are also some things to pay attention to when replacing brake pads, which are described in detail below.

Find out about your vehicle's braking system and pad model.

Before replacing the brake pads, you need to know the type of brake system and the type of brake pads of the vehicle to avoid buying the wrong brake pads. In general, the type of brake system of a vehicle can be obtained by looking at the vehicle manual or by asking a professional technician, while the brake pad model can be obtained by looking at the original brake pads or by asking a professional technician.

Choose a regular brake pad sales channel.

In order to ensure the quality and safety of brake pads, it is recommended to choose regular brake pad sales channels. Regular sales channels will provide the best guarantee, and will carry out strict testing and quality control of brake pads.

Choose brake pads that are right for your vehicle and your driving habits.

Different brake pads have different performance and application range, so you need to choose the right brake pad according to the vehicle and your own driving habits. For example, for vehicles that are often driven on highways, brake pads with high-temperature performance and strong braking power can be selected.

Follow the correct replacement process and technique.

When replacing brake pads, it is necessary to follow the correct replacement process and technology to avoid brake failure due to improper installation. It is recommended to consult the vehicle manual or ask a professional technician for guidance before replacing the brake pads to understand the replacement process and precautions.

Regularly inspect and maintain the brake system.

In order to prolong the service life of the brake pads and ensure the normal operation of the brake system, the brake system needs to be checked and maintained regularly. For example, regularly clean the brake system and check the degree of wear and tear of the brake pads, and replace the damaged or badly worn brake pads in time.

In short, replacing brake pads is one of the important measures to ensure driving safety, and it is necessary to pay attention to choosing the right brake pads, choosing a regular sales channel, following the correct replacement process and technology, and regularly inspecting and maintaining the brake system.

Brake pads are also known as brake pads. In the automotive braking system, brake pads can be said to be the most critical safety components. All brake effects are determined by brake pads, so good brake pads are the protectors of people and cars. We should always check the brake pads to see if they need to be replaced.

1. The replacement time cycle of brake pads and brake discs is not fixed, which depends on the driving conditions of the vehicle and the frequency and strength of the driver pressing the brake pedal. Generally speaking, the service life of the front brake pads is 30000 50000 km, and the service life of the rear brake pads is 120000 150000 km.

2. The best time to replace brake pads is generally about one year. The specific can depend on the condition of the brake pads, the thickness of the brake pads of the general disc brake can be checked by stepping on the brake pads, and the thickness of the brake pads on the brake pads of the drum brake should be checked by pulling the brake pads out of the brake. The structure of brake pads is roughly divided into:

Steel backs, friction blocks and attachments. The steel back should have sufficient strength and be able to match the installation; The friction block is mainly composed of an adhesive layer and a (backing layer) friction material; Accessories mainly include silencing membranes, circlips, alarms or alarm wires.

3. Check with your eyes whether the brake pads and brake discs are too thin. You can use a small flashlight to observe and check. When it is found that the black friction material of the brake pad wears out quickly and the thickness is less than 5mm, it should be considered to be replaced.

4. Listen to sounds. The brake pads of some old cars are not connected to the trip computer, but a small iron plate is installed on the brake pads for alarm. When the friction material wears out quickly, the brake disc will not wear the brake pads, but will wear the small iron plate for alarm.

At this time, the vehicle emits a screeching metal friction "chirping", which is a signal to replace the brake pads. In addition, if you are an experienced veteran driver, you can also judge faster based on the feeling of your foot on the brake.

These are all everyday car skills. Car owners and friends should always pay attention to the situation of our cars.

The replacement time cycle of brake pads and brake discs is not fixed, depending on the road conditions of the vehicle and the driver pressing the brake pedal, frequency and strength, the best time to replace the brake pads is generally about one year, check the brake oil, check the thickness of the brake pads.

When replacing the brake pads, you should look at the thickness of the brake pads and confirm the time to replace the brake pads.