在运转200~300小时后，应进行换油，在以后的使用中应定期检查油的质量，对于混入杂质或变质的油须及时更换。一般情况下，对于长期连续工作的减速机，按运行5000小时或每年一次更换新油.
After running for 200~300 hours, the first oil change should be done. The quality of the oil should be checked regularly in later use, and the oil mixed with impurities or deterioration must be changed in time. In general, for a long-term continuous working reducer, new oil is replaced at 5000 hours or once a year.
降低减速机运转时的齿轮传动噪声已成为行业内的重要研究课题，国内外不少学者都把齿轮传动中轮齿啮合刚度的变化看成是齿轮动载、振动和噪声的主要因素。用修形的方法，使其动载荷及速度波动减至小，以达到降低噪声的目的。在安装时，严禁用铁锤等击打，防止轴向力或径向力过大损坏轴承或齿轮。这种方法在实践中证明是一种较有效的方法。
Reducing the gear transmission noise of the reducer has become research topic in the industry. Many scholars both at home and abroad regard the change of gear tooth meshing stiffness as the main factor of gear dynamic load, vibration and noise. The method of modification is used to minimize the dynamic load and speed fluctuation in order to reduce noise. This method is proved to be a more effective method in practice.
减速机内部齿轮精度等级 设计减速机时，设计者往往从经济因素考虑，尽可能比较经济的确定齿轮精度等级，忽略精度等级是齿轮产生噪声与侧隙的标记。
When the reducer is designed in the gear precision grade of the reducer, the designers often cider the economic factors as much as to determine the gear precision level as much , and ignore the precision grade as the mark of the gear noise and the backlash.
