装载机等工程机械大多采用对称并联液压缸。迅速准确地判断故障缸显得很重要。其快速判断方法是: 将装载机动臂落到底,然后启动发动机(机器处于空挡位置),将动臂操纵杆置于下降位置,加大油门,根据松开动臂缸大腔接口处的漏油情况即可判断小腔油封的好坏。若大腔接口处漏油比较多,则说明该缸油封密封不良 Loaders and other construction machinery mostly symmetrical parallel hydraulic cylinder. Quickly and accurately determine the fault cylinder is very important. The rapid method of judgment is: the loader boom to the end, and then start the engine (the machine is in neutral position), the boom lever placed in the descent position, increase the throttle, according to release the boom cylinder cavity interface leakage The situation can judge the small cavity oil seal is good or bad. If the large cavity interface leakage more, then the bad seal oil seal