The brake system of Tailing electric vehicle fails:
1. When the brake pedal is pressed, the pedal does not rise and there is no resistance. Judge the cause: check whether the brake fluid is missing; Whether there is oil leakage at the brake wheel cylinder, pipeline and joint; Whether the master cylinder and slave cylinder parts are damaged;
2. The brake pedal is pressed to the bottom, and the braking effect is poor; The effect of continuous braking is not improved, and the pedal gradually rises. Judge the reason: there is gas mixed in the brake system;
3. When the brake is pressed continuously, the pedal returns to the higher position, and the braking effect is improved. Judge the reason: the clearance between the friction plate and the brake drum is too large;
4. When the brake is pressed continuously, the pedal position rises and there is a sinking feeling. Judge the cause: oil leakage;
5. Pedal position