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zhu sai beng liang fa de yan mo
Author(s): 
Pages: 33
Year: Issue:  9
Journal: Farm Machinery

Keyword:  柱塞泵开启压力柱塞式液压泵提升力试验台阀体时可磨砂密封面;
Abstract: <正> 小四轮柱塞式液压泵常见故障之一,是单向阀和安全阀密封不严,影响提升时间和提升力,严重者农具无法升起。因此,要注意检查其密封性,必要时进行研磨。安全阀的开启压力可在试验台上进行调整,调整无效时可更换钢球并研磨阀座接触面。应用φ7毫米的钢球,用锡焊上一段细钢筋作为手柄,组成一个研磨工具。在钢球上涂些细气门研磨砂,放入安全阀钢球阀座,用手旋转钢筋手柄,轻轻进行研磨5分钟,然
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