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大、中型液压挖掘机动臂缸通常采用并联方式,左、右2支动臂缸无杆腔相互连通,有杆腔也相互连通。对于此类连接方式的动臂缸,快速判断其内泄的方法如下:将动臂举升至最高点,再将左侧动臂缸有杆腔胶管拆下。待油液流干净后,继续举升动臂(操作时间不宜过长),使无杆腔“憋压”。
Large and medium-sized hydraulic excavator boom cylinder usually parallel mode, left and right two arm cylinder rod chamber connected to each other, rod chamber also connected to each other. For this type of connection boom cylinder, to quickly determine its internal leakage is as follows: the boom to the highest point, and then left the boom cylinder rod hose removed. Oil flow to be clean, continue to lift the boom (the operating time should not be too long), so that rodless chamber “hold back pressure ”.