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XG955-Ⅱ型装载机工作装置液压系统主要由转向泵、工作泵、供油阀、先导阀、多路分配阀、液压缸等组成,其工作原理如附图所示。其先导阀设有电磁铁定位,先导阀控制多路分配阀的阀芯移动,实现动臂和转斗动作。1.无动作状态当先导阀7的2个操纵杆均处于中间位置时,来自供油阀8的油液进入先导阀7的进油端口P,先导阀7处于关闭状态,
XG955-Ⅱ type loader working device hydraulic system is mainly composed of steering pump, working pump, fuel supply valve, pilot valve, manifold valve, hydraulic cylinder and other components. Its working principle is shown in the attached figure. Pilot valve with electromagnet positioning, pilot valve control manifold valve spool movement to achieve boom and bucket movements. 1. No action When the pilot valve 7 of the two joysticks are in the middle position, the oil from the fuel valve 8 into the pilot valve inlet port P 7, the pilot valve 7 is closed,