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三一重工装载机维修
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卡特装载机980故障维修

1、故障分析 装载机变速操纵阀中的分配阀用来操纵各换挡离合器液压缸的充油和卸油,即控制各离合器的接合和分离,进行换挡。分配阀杆可使变速箱分别处于空挡、Ⅰ挡、Ⅱ挡和倒挡位置。当挂Ⅱ挡时,U腔的压力油进入Ⅱ挡进油口L,使Ⅱ挡液压缸工作,这时Ⅰ挡、Ⅱ挡、倒挡进油口M、J与压力油腔不通,而与油箱相通。

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故障判断与处理 遇上述现象,应首先观察变速压力表上所指示的压力是否正常(变速压力应在1.08~1.47MPa范围内)。如果变速压力正常,可将挡位挂在Ⅰ挡、倒挡位置,看行驶是否正常,如果行驶正常,卡特装载机维修则可断定引故障是由于分配阀杆没有到位引起的。一般可以通过改变限位机构的位置来改变变速手柄位置。在调整时可在变速压力表上观察到调整情况,如果用手轻轻地推动变速操纵杆,这说明挡位已调好。如果换挡时发现表针不摆动,则表明没有挂上挡位,变速手柄还不到位,应重新调整。

2、ZHIDONGHOUGUABUSHANGDANG

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(此内容由1888autos.com提供)