How to deal with the bad brake fault detected by automobile detection equipment? -Vehicle testing equipment_ Vehicle testing station - Huizhou Guangda vehicle testing equipment Technology Co., Ltd

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How to deal with the bad brake fault detected by automobile detection equipment?

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How to deal with the bad brake fault detected by automobile detection equipment?

Date of issue: 2019-07-26 16:03:05 Author: admin Click: one hundred and fifty-two

How to deal with the bad brake fault detected by automobile detection equipment? Huizhou Guangda motor vehicle testing center tells you what the problem is and how to deal with it

 How to deal with the bad brake fault detected by automobile detection equipment?
1. The poor contact between the drum and the friction lining, the deformation of the brake shoe or the roundness of the brake drum more than 0.5mm lead to poor contact between the friction lining and the brake drum, and the brake friction torque decreases. If this phenomenon occurs in the automobile inspection equipment, it must be bored or adjusted and repaired. The diameter of the brake drum after boring shall not be greater than 220mm, otherwise the new part shall be replaced.

2. The friction coefficient of the brake pad is reduced or the brake pad is polluted by water. During maintenance, remove the friction plate, clean it with gasoline, and heat and bake the blowtorch to make the oil seep out. If the oil leakage is severe, a new one must be replaced. For the immersed friction plate, continuous braking can be used to generate heat energy to evaporate the water and restore its friction coefficient.

3. Improper clearance. The clearance between the working surface of the brake friction plate and the inner wall of the brake drum is too large, and the stroke of the pump piston is too large during braking, resulting in the slow braking and the decrease of braking torque. During maintenance, comprehensively adjust the brake clearance according to the specification, that is, use a flat head screwdriver to move the ratchet wheel from the high-speed hole to fully open the brake shoe and eliminate the clearance, and then return the ratchet wheel to 3-6 teeth to obtain the specified clearance.

4. The cup of brake master cylinder and wheel cylinder is damaged, the brake pipeline can not produce necessary internal pressure, and the oil leakage leads to poor braking. The cup of brake master cylinder and wheel cylinder should be removed and inspected in time, and the worn parts should be replaced

5. The brake pipe leakage or blockage of automobile detection equipment, insufficient brake fluid, and brake oil pressure drop and failure. Check the brake pipeline regularly to eliminate leakage, add brake fluid and dredge the pipeline.

6. The air entering the brake pipe slows down the braking. The brake pipeline is heated and the residual pressure in the pipe is too small, which causes the brake fluid to vaporize and bubbles appear in the pipeline. Due to the compressibility of the gas, the braking torque decreases during braking. During maintenance, the air in the brake cylinder and the pipe can be drained and the brake fluid can be added sufficiently.

Huizhou Guangda motor vehicle testing center is a professional industrial company for automobile testing, parts testing and motorcycle testing. The company has strong technical force and advanced hardware facilities. It can independently complete the production of testing equipment, software development and system networking projects. It is a professional enterprise with strong scientific and technological strength in the domestic motor vehicle testing industry.

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