Hydraulic system in the manufacturing, testing, use and storage are subject to pollution, and cleaning is to eliminate pollution of hydraulic oil, hydraulic components and pipe cleaning, such as an important means to maintain. Production cleaning the hydraulic system usually have the main system and system-wide cleansing cleaning. System-wide cleansing refers to the hydraulic device for cleaning the entire loop in the pre-cleaning system should be restored to the actual functioning of the state. Medium can be used to clean hydraulic oil, cleaning time is normally 2-4 hours under special circumstances not more than 10 hours, cleaning effect of the loop filter as a standard without impurities. When cleaning the hydraulic system in general, the use of hydraulic oil used in the work or test the oil. Can not use kerosene, gasoline, alcohol, steam or other liquids, to prevent the hydraulic components, pipes, tanks and seals, such as by corrosion. In order to prevent external corrosion caused by moisture, cleaning at the end of the hydraulic pump but also continuous operation until the temperature returned to normal until after the cleaning circuit to rule out the possibility of cleaning the oil clean.
Glossary
Additive: Substance added to another in small amounts to improve its properties.
CAS: Chemical Abstracts Service.
Carcinogenicity: Ability to cause cancer.
Petroleum Distillate: A chemical fraction of petroleum.
液压油作为动力介质广泛应用于油压机械。油液类型包括合成化合物，矿物油，水和水基混合物。油液分布在机械设备的制动系统和动力转向系统中。液压系统是非常普遍的飞机飞行控制系统。
液压系统，如上面提到的那些, 如果使用低压缩,将最有效地利用工作液压油。由于工业液压系统快速循环运行数百至数千次，导致气温达数百摄氏度，可能造成元件失灵，对系统造成严重伤害，因此液压系统需要经常文护。
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