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In hydraulic transmission, hydraulic oil is not only a medium for power transmission, but also a lubricant, and it also acts as a seal in some components. Large Tractor motor Grader The heat in the system is also diffused through the oil, so it also acts as a heat sink. Therefore, in order to ensure the reliable, effective and economical operation of the hydraulic system, the hydraulic oil must meet the following requirements:
1) Appropriate viscosity. Large Tractor motor Grader Viscosity is the size of intermolecular frictional resistance when oil flows. When the viscosity is too high, the resistance of the oil flow is large, the energy loss is large, and the system efficiency is reduced. In addition, the no-load loss of the main engine increases, the temperature rises rapidly and the operating temperature is high, and the "cavitation" phenomenon is prone to appear at the oil suction end of the main pump. If the viscosity is too small, the good lubrication conditions of the hydraulic components cannot be guaranteed, the wear of the components will be aggravated, Large Tractor motor Grader the leakage will increase, and the efficiency of the hydraulic system will also be reduced.
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