目前国产叉车在出厂时,大多数产品的液压系统只装有两路手动换向阀,因此,它只能完成货叉起升、下降及门架前倾、后倾四个动作。若在门架上增设夹抱、推拉、压紧等各种属具,则需另外增加换向阀方能操作。这样不仅使液压元件增多、系统复杂,更重要的是给司机操作带来不便。我们根据生产需要,在原 At present, domestic-made forklift trucks are manufactured with hydraulic system of most of the products only equipped with two-way manual reversing valve. Therefore, it can only complete four movements of forklift, lowering and mast forward and backward. If the door frame to increase grip, push and pull, compression and other accessories, you need to increase the valve can only be operated. This will not only increase the hydraulic components, system complexity, more importantly, to the driver operating inconvenience. We based on production needs, in the original