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水泵为什么会漏水，
1、水泵漏水原因
(1)安装水泵时，水封座圈总成未安装到位，造成水泵继续漏水。由于与检视孔对应的泵轴上有挡(甩)水圈，当水封漏水时，冷却水顺泵轴遇挡水圈时会从水泵的检视孔向外甩出及滴露，这样可防止冷却水流入轴承内破坏润滑。另外，在更换挡水圈时不注意清除泵体与泵盖之间不能很好地结合和密封，也会造成水泵漏水。
⑶工程机械工作环境恶劣，容易造成胶木密封垫与衬套端面的磨损不均匀;弹簧长期在水中浸泡，易锈蚀、弹力下降，也能引起漏水。
⑷冬季忘记放水或放水不净，以及放水时温度过高，冷却系内水蒸气凝结后结冰，都有可能造成水泵泵体被冻裂，导致漏水。
⑵机器老旧，水封内机件磨损、锈蚀和老化失效，亦是水泵漏水的原因。当工程机械长期停放时，因发动机内没有冷却水，造成胶木密封垫因干结、收缩而变形;加水后胶木密封垫虽会膨胀但不能完全恢复原状，必将引起少量漏水。另外，对于新安装的水泵，胶木密封垫与铸铁衬套尚未完全磨合好，也将导致水泵少量漏水。
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