The brake drum is an indispensable original in the car. Do you know how to solve the common problems of the brake drum? The following is explained by Longyao County Xiangyuan Auto Parts Co., Ltd:

1. Trouble phenomenon: step on the brake pedal, the pedal does not rise, no resistance;

Determine the reason: check whether the brake fluid is missing; whether the brake cylinder, pipeline and joints are leaking; whether the master cylinder and the cylinder parts are damaged;

2. Trouble phenomenon: the brake pedal is stepped on to the end, the braking effect is not good; continuous braking, the effect is not improved, and the pedal gradually rises;

Determine the reason: the brake system is mixed with gas;

3. Trouble phenomenon: Continuously step on the brake, the pedal return is increased, and the braking effect is improved;

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

4. Trouble phenomenon: continuously step on the brake, the pedal position rises, and there is a sense of sinking;

Cause: oil leakage;

5. Trouble phenomenon: the pedal position is very low; If you step on it again, the position cannot be raised and you feel hard;

Determine the reason: the master cylinder is blocked;

6. Trouble phenomenon: The pedal height is normal, not soft and not sinking, but the braking effect is not good;

Judge the reason: the gap between the friction lining and the brake drum is too large or there is oil;

7. Fault phenomenon: brake deviation;

Determine the reason: if the car is skewed to the left, the right wheel is not braking well, and vice versa;

8. fault phenomenon: the car mileage, brake drum (disc) heating;

Determine the reason: check the brake master cylinder, brake cylinder or pipeline;

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

Judgment reason: to be adjusted;

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

Determine the cause: loosen the bleed screw and observe the return of the brake shoe. If the brake shoe returns, the oil pipe should be dredged; if the brake shoe does not return, the brake cylinder should be disassembled and checked.