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1台工作约4500h的柳工CLG888型装载机,作业时动臂起升速度突然变慢,但转向、制动性能均正常。初步判断为该机工作装置液压系统出现故障,为此先对该装载机工作装置液压系统进行分析,再进行故障排查。1.工作原理柳工CLG888型装载机工作装置液压系统主要由转向泵组1、工作泵2、分配阀3、回油滤油器4、先导阀5、减压阀6、切断阀7、转斗缸8、动臂缸9、流量放大阀
A work about 4500h Liugong CLG888-type loader, jib boom lifting speed suddenly slow, but the steering, braking performance are normal. It is initially determined that there is a fault in the hydraulic system of the work machine of the machine. Therefore, the hydraulic system of the work machine of the loader is analyzed first, and then the trouble is checked. 1. Working Principle Liugong CLG888 loader working device hydraulic system mainly by the steering pump group 1, the working pump 2, the distribution valve 3, the return oil filter 4, the pilot valve 5, the pressure reducing valve 6, the shut-off valve 7, turn Bucket cylinder 8, boom cylinder 9, flow amplification valve