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一台ZL50型装载机使用约900 h后出现转向失灵。检查发现,转向臂轴扇形齿轮与花键轴端交接处断裂,同时花键齿扭曲变形。分析主要有以下几方面的原因。
A ZL50 loader has a steering failure about 900 h after it has been used. Inspection found that the steering arm shaft sector gear and spline shaft junction at the fracture, while the spline tooth distortion. Analysis mainly in the following aspects.