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工程起重机液压油混进水份或其它液体,清洁度超出管理标准、含金属物或者机器长期停用都必须更换新油。管理系统,氧化严重或积有油泥,应酸洗处理。一般情况下,对液压系统进行冲洗即可。其基本方法是: 1.排除旧油在油温为40～60℃,压力为100kPa条件下,连续操作5～6h。可根据液压系统具体情况加或不加冲洗剂。趁热放出,尽量放干净,必要时用压缩空气吹赶残油排出。然后用轻油、煤油或者锭子油清洗油箱。 2.一次冲洗一般情况只须用不加任何添加剂的透平油即可。也可用液压油、冲洗油、
Hydraulic oils in construction cranes are mixed with water or other liquids. The cleanliness must exceed the regulatory standards, contain metal, or the machine must be replaced for a long time. Management system, severe oxidation or sludge, should be pickled. Under normal circumstances, flush the hydraulic system. The basic method is as follows: 1. Exclude the old oil at a temperature of 40-60°C and a pressure of 100 kPa for 5-6 hours. According to the specific conditions of the hydraulic system with or without rinse agent. When it is hot, release it as cleanly as possible, and if necessary, blow out the residual oil with compressed air. Then use light oil, kerosene or spindle oil to clean the tank. 2. A flush is generally required only with turbine oil without any additives. Can also use hydraulic oil, rinse oil,