小编从互联网上了解了一个典型案例：一辆自动上料搅拌车在转弯的时候出现了严重的事故，据说是司机发现刹车踏板回缩缓慢，没有当回事，然后就搅拌车刹车塌塌陷，造成事故。为此，小编收集了自动上料搅拌车刹车踏板不回缩故障分析法供大家参考。

The Xiaobian learned a typical case from the Internet: an automatic feeding mixer truck had a serious accident when turning. It is said that the driver found that the brake pedal retracted slowly and did not take it seriously, and then the brake of the mixer truck collapsed, causing the accident. For this reason, Xiaobian collected the failure analysis method of brake pedal non retraction of automatic feeding mixer truck for your reference.

故障现象：不管怎么踩自动上料搅拌车刹车踏板，踏板不升高，就是无阻力

Fault phenomenon: no matter how you step on the brake pedal of the automatic feeding mixer, the pedal does not rise, that is, there is no resistance

故障分析：检查制动液是否充足；制动的分泵、管路及接头处是否有漏油现象；总油泵、分泵零部件是否有损坏；

Fault analysis: check whether the brake fluid is sufficient; Whether there is oil leakage at the brake cylinder, pipeline and joint; Whether the parts of the master oil pump and the slave cylinder are damaged;

故障现象：即使你把自动上料搅拌车刹车踏板踩到底，制动的效果还是不好；连续的踩刹车，效果也没有改善，且踏板逐渐的升高

Fault phenomenon: even if you press the brake pedal of the automatic feeding mixer to the end, the braking effect is still poor; The effect is not improved when the brake is continuously pressed, and the pedal is gradually raised

故障分析：制动系统内肯定有混有气体；

Fault analysis: there must be mixed gas in the braking system;

故障现象：连续的踩刹车踏板，踏板回位升高，制动效果有一定的改善

Fault phenomenon: continuously depress the brake pedal, and the pedal return rises, and the braking effect is improved to a certain extent

故障分析：摩擦片与制动鼓间隙过大的原因，要及时的调节。

Fault analysis: the reason for the excessive clearance between the friction plate and the brake drum should be adjusted in time.

此外搅拌车刹车抖动这种情况多发生在老车身上，由于使用磨损，搅拌车刹车盘表面已有一定的平整度失准。所以建议根据具体情况选择使用车床光盘工艺打磨，或更换刹车片(用于年长的搅拌车)。

In addition, the brake jitter of the mixer truck mostly occurs on the old vehicle body. Due to wear and tear, the surface of the brake disc of the mixer truck has a certain degree of flatness misalignment. Therefore, it is recommended to use the lathe disc process to polish or replace the brake pads (for older mixer trucks) according to the specific situation.

搅拌车在急刹车的时候，方向盘总会偏一边，这种情况其实就是俗称的“偏制动”，故障原因主要是搅拌车刹车系统左右分泵对刹车片的作用力不均匀引起的。但是由于搅拌车在行驶过程中制动盘转动较快，分泵的作用不均匀，在快速摩擦时摩擦差别很小，不易察觉。

When the mixer is braked suddenly, the steering wheel always deviates to one side. This situation is actually commonly known as "partial braking". The failure is mainly caused by the uneven force of the left and right sub cylinders of the mixer brake system on the brake pads. However, due to the rapid rotation of the brake disc during the driving of the mixer truck, the effect of the cylinder is not uniform, and the friction difference is very small during the rapid friction, which is not easy to detect.

自动上料搅拌车一般出现这种情况的比较少，但这不代表我们对此不该重视，一旦发生类似情况就要及时的检修维护，不然就会出现重大的问题。小编提醒：不要为省一点小钱而酿成大祸。关注我们http://www.jfhntjbj.com，了解更多事项。

In general, there are few such cases in the automatic feeding mixer truck, but this does not mean that we should not pay attention to it. In case of similar cases, timely repair and maintenance should be carried out, otherwise major problems will occur. Xiao Bian reminds: don't save a little money and cause a disaster. Follow us http://www.jfhntjbj.com Yes, learn more.