Four-wheel maintenance, also known as four-wheel level two maintenance, mainly involves maintaining and servicing the tires and braking system components to ensure their proper functioning. The four-wheel part primarily focuses on inspection. The brake pedal part mainly involves maintaining and servicing the master cylinder and brake pads for all four wheels.
Especially the brake pump, whose internal sealing rings are made of rubber. Once they age, this can cause the brake pump to depressurize or leak oil, resulting in insufficient braking force. Furthermore, the friction between the brake pads over time will cause these worn metal particles to form a keratin layer on the surface of the bus brake pads, impairing braking performance. Therefore, we should clean this layer regularly to ensure the braking system’s effectiveness.
A good braking system is essential for ensuring life. The number of horsepower a vehicle has and how fast it can go are not the key factors. What makes a good car is its ability to control speed.
Bus brake pads and electromagnetic brakes are essential components for our vehicles on the road. We must pay close attention to them, regularly inspect and clean them to prevent brake malfunctions during operation.
The above explains how to maintain bus brake pads. Now let’s look at some common issues related to replacing and repairing vehicle brake pads.
1. When replacing brake pads, use original parts for the bus brake pads. Only in this way can the braking effect between the brake pads be good and the wear be reduced.
2. Under high-speed driving conditions, check the brake pads every 5,000 kilometers. Not only should you check the remaining thickness, but you should also check the wear condition of the pads, whether the wear level on both sides is the same, and whether the return to the original position is easy. If any abnormalities are found, be sure to deal with them immediately.
3. After replacing brake pads, be sure to pump the brake pedal several times to clear the gap between the pads and the brake disc. Otherwise, if your foot is not on the brake pedal, it can easily lead to a safety accident.
4. Brake pads generally consist of two parts: a wear-resistant iron liner and wear-resistant material. Never wait until the wear-resistant material is completely worn away before replacing the pads. For example, the front brake pads of a Jetta have a new wear thickness of 14mm, while the replacement limit is 7mm, mainly consisting of a 3mm thick iron wear-resistant liner and nearly 4mm thick wear-resistant material. Some vehicles have a brake pad warning function; once the wear limit is reached, the dashboard will alert you to replace the pads. Once the pads reach their wear limit, they must be replaced. Even if they can still be used for a while, it will reduce braking effectiveness and compromise driving safety.
5. When replacing brake pads, use common tools to push the brake master cylinder back. Do not use other pry bars to force it back, as this can easily bend the brake caliper guide screws and cause the brake pads to jam.
6. After replacing the brake pads, a break-in period of 200 kilometers is required to achieve good braking performance. Drivers should drive cautiously with newly replaced brake pads.
Experienced drivers, when you’re servicing your cars, don’t forget to replace your brake pads! Brake pads are crucial for driving safety; excessive wear can lead to irreparable damage. Brake pad materials vary, and driving habits, road conditions, and safety practices all affect wear levels. So, when and how should you replace your brake pads?