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挖掘机大臂提不起来是怎么了
更新时间: 2020-07-03 00:00:00  

挖掘机大臂抬不起来常见故障原因:

1、油封破损导致大臂抬不起来;

2、油缸的柱塞损坏导致大臂抬起、下落慢;

3、分配阀有污物堵住会导致大臂动作慢甚至抬不起来;

4、液压油质量太差,长期使用劣质或者变质的液压油引起油封老化,加速液压泵的非正常磨损。

关键词: 挖掘机 起来 怎么

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