The brake system is the most important system of a car. It is not a quick thing to run, it can be called a powerful one. When I brake, what have we experienced since we stepped on the brake pedal and stopped at the vehicle? Which components are working?
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First, when we step on the brake pedal, we pass the power to the master cylinder. The master pump is like an injection needle with brake oil. When the force is transmitted, the piston will push the brake oil forward. The brake oil passes through the brake oil pipe and reaches the brake cylinder at the four wheels. The brake cylinder then pushes the brake pad to move, clamping the brake disc and braking.
In this whole system, only the brake oil needs to be replaced regularly. Under the best working condition, it needs to be replaced in about 3 years and 60,000 kilometers. Because the transmission of braking force depends on the brake oil, if it deteriorates, it will lead to Power transmission is inaccurate or even ineffective.
Brake pads and brake discs are wear parts and there is no fixed replacement cycle. No matter how many kilometers, as long as the wear limit is reached, it needs to be replaced. Braking habits and driving conditions are different. The mileage of brake pads will vary a lot. Some cars need to be changed for 30,000 kilometers, and some 80,000 kilometers are changed. The brake disc is the same as the brake disc, and it needs to be replaced when it is worn to the limit. Generally, it is necessary to change the brake disc when changing the three brake pads. The rest of the brake system has a long life and requires no replacement.
If there are problems with some parts, what are the symptoms when braking?
1. The brakes are shaking. The brakes are shaking because the brake discs are not flat. You need to re-level the brake discs on the lathe. If the brake discs are worn out, you need to replace the brake discs. 2. The brakes are off. The brake is biased because the braking force of the left and right wheels is different when braking. Generally, there is a problem with the brake cylinder of a certain wheel. If the card is stuck or returned badly, the brake cylinder needs to be replaced.
3. The brakes have abnormal noise. The common one is the buzzing. First check if the brake pad is ground to the alarm piece. If it is the sound that is ground to the alarm piece, the brake pad needs to be replaced. If it is not worn, it is generally that the brake pads have hard spots, or dust and sand are in between the discs and the sheets. It is necessary to remove the brake pads and sand them with sandpaper.
4. The brakes are soft. Brake soft first check if the brake oil is missing. If it is missing, find out if there is any leak. Secondly, consider the brake oil deterioration, excessive water absorption, etc., need to replace the brake oil. 5. The brakes are hard and can't be stepped on. Because there is a vacuum booster bag to provide power when braking, we don't need a lot of effort to brake. If the vacuum booster bag is damaged, or the vacuum tube connected to the booster bag is detached, it will cause no power, which will cause the brake to be hard. Check if the vacuum tube is off and check the power bag problem.
6. The hand brake light on the meter is always on. After the handbrake is lowered, the handbrake light is still on, which is mostly caused by less brake oil. Check the brake pads first. After the brake pads are thinned, the brake cylinder followers move outwards, so the oil stored in the cylinders increases and the oil in the oil tanks decreases. If there is no problem with the brake pads, check for leaks.
Finally, there is a problem with the brake system that cannot be delayed. It is necessary to check the repair immediately. Once the braking force is reduced or the brake is out of order, the consequences should not be underestimated. Brake pads and brake fluid are necessary inspection items for each maintenance, and problems are found and resolved in time.
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