迅速判断液压缸是否完好，对诊断液压系统故障能起到事半功倍的作用。１．在回油滤芯中查找故障信息源当液压缸出现动作缓慢或没有动作时，可先检查外观，再检查回油滤芯。因为液压缸磨损等原因产生的微粒随着液压缸活塞的频繁工作，其中有相当一部分微粒随着工作介质在流回油 Quickly determine whether the hydraulic cylinder intact, diagnosis of hydraulic system failure can play a multiplier effect. 1. Find fault information source in the oil return filter When the hydraulic cylinder appears slow or no action, you can check the appearance and check the oil return filter. Because the cylinder wear and tear and other causes of particles with the hydraulic cylinder piston frequent work, in which a considerable part of the particles with the working medium in the back to the oil