Common Failures And Maintenance Precautions Of Car Brake Calipers And Brake Cylinders

As a car brake caliper manufacturer, today JHY came to talk about common faults and maintenance precautions of car brake calipers. Common faults: 1. Brake deviation 1. First, the brake deviation is not necessarily a problem with the braking system. The pattern pressure of the four tires and the suspension of the vehicle chassis should be checked. If there is an abnormality, repair or replace it. 2. Check the brake parts of each tire to see if there are any drag or lock. 3. Check the alignment of the four wheels. Second, release the handbrake, the rear wheel is still locked. This situation generally occurs when the car is left for a period of time after washing the car. The main reason is that the handbrake cable is caused by water rust or icing. Usually the handbrake system is often maintained. Can be solved. 3. Brake failure 1. Depress the brake pedal. Press the brake pedal to the end without too much resistance. Check whether the brake fluid is lacking and whether there is oil leakage from the brake cylinder. The master cylinder is damaged. 2. Press the brake pedal all the way down, the braking effect is not good, continuous pedaling will improve, and there is no oil leakage in the brake system. There is no loss of brake fluid. It can be determined that the water content in the brake system or the brake fluid is too high without replacement. . 3. Check the vacuum booster pump to see if the braking force is insufficient due to the vacuum booster pump not working. 4. There are abnormal noises when stepping on the brake, which way should be checked 1. First, check the wear of the brake pads to see if they are worn to the brake alarm pad position or less than three millimeters, because the brake pads wear to this position, they should be replaced. . 2. Check the brake disc to see if there are grooves on the friction surface of the brake disc and the degree of wear and edges of the brake discs, because grooved brake discs and heavily worn brake discs have raised grooves and edges. The brake pads are prone to abnormal noises due to contact friction. 3. Rotate the tire to see if there is any abnormal resistance in the tire rotation. Check whether the brake is abnormally caused by the drag brake. 4. If the brake pads are newly replaced, check whether the brake pads are in place, whether sand particles are stuck on the friction surface between the brake pads and the brake discs, and whether the brake pads are too hard or the brake discs have grooves. 5. Check whether the silencer on the brake pad is installed properly. 6. Check the mounting groove of the brake pads on the brake caliper, and manually dial the brake pads to see if there are abnormal noises. Fifth, when the vehicle is stepping on the brakes at high speeds, the steering wheel shakes mostly due to uneven driving surface wear or uneven wear caused by driving habits. Some problems can be solved by replacing the new brake discs. Replace with new brake pads. 6. Partial wear of brake pads Two pieces with uneven thickness and wear 1. Poor or non-returning of the brake cylinder will result in different wear on both sides of the brake pads. 2. If the brake caliper guide pin does not slide smoothly or rusts, it will cause different wear on both sides of the brake pads. 3. The brake shoe installation slot is rusty, and the brake shoe slips smoothly, which will cause different wear on both sides. 7. Uneven wear on the brake pads on both sides of the vehicle The most common uneven wear on the front wheel brake pads on the two sides is generally that the brake pads near the master cylinder wear faster, which is caused by the uneven distribution of the braking force of the brake system. This situation is difficult to solve, and you can only try it with a master cylinder, but it may not solve it. Eight, brake drag brake 1. The brake card installation slot, because the brake dust mud mud pollution caused by rust and jam may cause the brake drag brake. 2. Due to the damage of the dust cover of the brake caliper sliding pin, the brake pin will corrode and pollute the sliding pin, causing sliding difficulties or jamming, which will also cause the drag of the brake system. 3. The brake cylinder is damaged because of the dust cover or the brake fluid is too dirty, which causes the brake cylinder to run poorly, and the loss of the returning ability severely causes the brake cylinder to freeze, which may cause the brake system to drag. Nine, oil leakage from the brake cylinder 1. The brake disc and brake pads are severely worn, causing the piston of the brake cylinder to come out of the cylinder of the brake cylinder. 2. Due to the damage of the brake cylinder dust cover, the leakage of the cylinder caused by corrosion and aging of the seal rubber ring connected to the cylinder of the cylinder and the cylinder of the cylinder. Precautions during maintenance: 1. It is forbidden to add brake fluid, because the corrosiveness of each model of brake fluid is different. At that time, there may be no problems, but there are hidden safety hazards in the later use process because of chemical There is a certain process for reactive corrosion rubber. 2. The water content of the brake fluid exceeds 2.5% or the boiling point of the brake fluid is lower than the international standard of 180 degrees Celsius. The brake fluid is too cloudy and must be replaced! 3. It is recommended to replace the brake pads when they wear down to 3mm, because the wear down will reach the bonding area between the brake back plate and the friction pads. In this area, the brake pads will wear quickly and there is a safety hazard. 4. Do not wash the car immediately after running at a high speed, because the temperature of the brake disc is very high at that time, a car wash will cause some damage to the brake disc, which may cause uneven hardness of the brake disc mentioned above. 5. When maintaining the brake or replacing the brake pads, be careful not to apply butter to the guide pins or the brake pad mounting grooves, because the high temperature resistance of the butter does not meet the requirements, and the butter will scorch due to the high temperature during the braking process, causing the sliding pin to slide. Poor or stuck results in uneven wear or drag brakes. 6. Regularly check the brake fluid and brake discs to ensure driving safety. If you want to know more about car brake calipers, please contact us!

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