No matter how fast the car runs, it is a critical time to stop. This is a problem. The brake system is a very critical part of every system in the car. If there is a problem with the brake system, it is very dangerous. The brake oil also has a great influence on the braking effect. It is very important to change the brake oil regularly. So, how to change the brake oil, what are the precautions for replacing the brake oil? At present, most repair shops still use the traditional method of replacing brake oil. The owner should understand the steps and key to replace the brake oil. Learn to distinguish whether the repair shop is correct and prevent the situation from being fooled. Traditional steps to replace brake fluid: 1. Before replacing the brake oil, it is necessary to give the car a cloth. Because the brake oil has strong water absorption, if the brake oil drops to other places, it may corrode the car parts. This is also an operation specification for car maintenance. 2. Use the vacuum pumping unit to remove some of the old brake oil from the brake oil reservoir, and then add new brake oil to the brake oil reservoir, but some repair shops will skip this step and directly proceed to the next step. The brake cylinder discharges all old brake fluid. 3. Master A connects the oil pipe with the oil drain screw, the other end of the oil pipe is connected to the old brake oil receiving bottle, and then unscrew the oil drain screw of the brake caliper; Master B sits in the car and brakes, because of the brakes, The brake fluid is forced out and flows into the oil guide. This process requires constant brakes to drain the old oil, so before Master B lifts the brakes, Master A will tighten the oil drain screw again, reducing the chance of returning oil to the air intake. Drain the oil and this step will be repeated. At the same time, in order to prevent the brake oil of the brake oil reservoir from being too small, the air will enter the brake system from the liquid storage tank, and it is necessary to continuously add new brake oil. 4. Until the color of the brake oil discharged from the oil guide tube gradually becomes translucent yellow and there is no air bubble, the brake oil of the wheel is replaced, and the oil drain screw needs to be tightened in time, and the oil stain around the oil drain screw is wiped clean. The master will step on the brakes to check for leaks in the drain. The practice of the four wheels is the same. 5. Finally confirm whether the fluid level of the brake oil reservoir is between MIN and MAX. It is necessary to add new brake oil in time. Precautions for replacing the brake fluid: 1. A cloth is required before replacement to prevent car parts from being corroded by brake oil. 2. Although some repair shops will not remove some of the old brake oil from the liquid storage tank in advance, but will continue to add new brake oil during the process of discharging the brake oil. Some people may doubt that the old and new oils are mixed together, and it will not become old. Oil? Tell you that this is true, so the master will continue to drain the old and new mixed oil from the oil drain, and add new brake oil in time, and repeat it until the semi-transparent yellow new oil is discharged. It’s gone, of course, it will use more new brake oil. 3. Replace the brake oil and pay attention to completely remove the air. Once the brake pump and hydraulic oil pipe of the brake system enter the air, it will reduce the braking performance of the car and seriously affect the driving safety. The oil guiding tube is transparent and relatively clean, can judge the discharge of old oil, and can observe whether there are bubbles. The above is how to change the brake oil and the key issues that need attention. Although different repair shops do different things, they often have the same effect. The final result is the same. I hope everyone can understand the method of replacing the brake oil after reading it. Whether the factory to replace the brake oil is reasonable, do not be fooled by unscrupulous or irregular maintenance plants.
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