论文部分内容阅读
１故障现象我局有一台全液压履带式起重机，其液压系统的部分原理图如图１所示。该机因行走换向阀６的阀体爆裂及其它一些问题停用了三年多时间，近期为了恢复其使用性能进行了一次全面维修，维修期间更换了多路换向阀组５。修竣试机时出现左右行走不同步，左侧履带起步较晚且
1 fault phenomenon I have a full hydraulic crawler cranes, some of its hydraulic system schematic diagram shown in Figure 1. The machine was deactivated for more than three years due to valve body burst and other problems with the traveling selector valve 6, and a full repair was recently performed to restore its serviceability. The multi-way selector valve set 5 was replaced during maintenance. When repairing the test machine appears about walking is not synchronized, the left track started late and