How to solve common problems of automobile brake drum?

The brake drum is an essential part of the car. Do you know how to solve the common problems of the brake drum? Now Longyao County will explain to Yuanyuan Auto Parts Co., Ltd.:

1. Fault phenomenon: step on the brake pedal, 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 components of master cylinder and slave cylinder are damaged;

2. Fault phenomenon: 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 in the brake system;

3. Fault phenomenon: continuously step on the brake, the pedal returns to the position, and the braking effect is improved;

Judge the reason: the clearance between the friction plate and the brake drum is too large;

4. Fault phenomenon: continuously step on the brake, the pedal position rises, and there is a sinking feeling;

Judge the cause: oil leakage;

5. Fault phenomenon: pedal position is very low; Step again, the position cannot be raised, and the feeling is hard;

Judge the cause: the master cylinder is blocked;

6. Fault phenomenon: the pedal height is normal, not soft or sinking, but the braking effect is poor;

Judge the reason: the clearance between the friction plate and the brake drum is too large or greasy;

7. Fault phenomenon: brake deviation;

Judge the reason: if the car deviates to the left, the brake of the right wheel is ineffective, and vice versa;

8. Fault phenomenon: the brake drum (disc) gets hot when the vehicle runs for a certain mileage;

Judge the cause: check the brake master cylinder, brake wheel cylinder or pipeline;

9. Fault phenomenon: the free stroke of brake pedal is too small;

Judgment reason: adjustment required;

10. Fault phenomenon: the brake fluid level rises slowly;

Judge the cause: unscrew the bleed screw and observe the return of the brake shoe. If the brake shoe returns, the oil pipe shall be dredged; If the brake shoe does not return, disassemble and check the brake wheel cylinder.

The above are the common problems and solutions of the brake drum. I hope they can help you!