由电液换向阀引起的系统故障

System fault caused by solenoid controlled pilot operated directional valves

简略介绍了MDY2 0 0型下压式打包机液压系统的工作原理 ,出现的故障现象。着重分析了由电液换向阀引起故障的原因 。

This paper introduces briefly working principle of hydraulic system of MDY200 pessing down type packing appliance and the fault phenomenon appearing, emphasizing to analyze the fault reason caused by solenoid controlled pilot operated directional valves ,narrating slightly the solution method.