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挖掘机更换液压油的传统作法只是抽出液压油箱内的液压油,更换液压油滤芯,再加注新液压油。这种方法只能更换掉系统内48%的液压油。而残存在系统内52%的脏油与新液压油混合后,大大降低了液压泵及其他元件的使用寿命。以沃尔沃360B型挖掘机为例。系统内液压油总量为500 L,而液压油箱内只有220 L液压油,如果只更换液压油箱内的
Excavator to replace the traditional method of hydraulic oil is just pulled out of the hydraulic oil tank, replace the hydraulic oil filter, then add new hydraulic oil. This method can only replace 48% of the system hydraulic oil. The remaining 52% of the dirty oil in the system is mixed with the new hydraulic oil, greatly reducing the service life of hydraulic pumps and other components. Take Volvo 360B Excavator for example. The total amount of hydraulic oil in the system is 500 L, while only 220 L of hydraulic oil in the hydraulic tank, if only the replacement of the hydraulic tank