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pen you beng ting zhu dao xiang cao sun huai hou zen me ban ?
Author(s): 
Pages: 25
Year: Issue:  6
Journal: Farm Machinery

Keyword:  导向槽滚轮销严重磨损台阶状气焊枪调整螺钉板尺棱形表面淬火偏移量;
Abstract: <正> 东方红-75拖拉机的 A4CB-8.5×10型老泵的挺柱由滚轮销伸入泵下体的挺柱孔导向槽中来导向。润滑不足、机油过脏等情况可造成滚轮转动不灵,或完全不能转动。时间长了使滚轮被磨成多棱形或月牙形。由于滚轮尺寸减小过多,挺柱下落,滚轮销从下面脱出挺柱孔导向槽,再上行供油时,便会将导向槽损坏。而且由于凸轮和滚轮的严重磨损,滚轮自动对正的稳定位置也会变化,使滚轮销紧靠导向槽的一侧,
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