装载机在作业中，产生动臂举升和收斗速度慢的原因主要是：动臂缸或者动臂操纵间内漏、转斗操纵网或转斗缸内漏。必须检修液压缸、控制动臂或铲斗的分配间以及齿轮泵。为了加快诊断，我们经过分析及具体实践，找到了排除此种故障的简便方法。以动臂缸举升无力为例进行介绍。将? Loaders in the operation, resulting in boom lift and bucket speed is mainly due to: boom or boom control room leakage, bucket steering net or bucket cylinder leakage. The hydraulic cylinder must be serviced to control the distribution of the boom or bucket and the gear pump. In order to speed up the diagnosis, we have analyzed and put it into practice, and found an easy way to eliminate such a fault. Boom lift cylinder weakness as an example to introduce. will?