Inspect bearing lubrication if the oil level is in normal level.
检查轴承是否有油，滑动轴承应检查是否达到规定油位。
After operation, observe the oil level in the oil window, preferably at the intermediate mark. Slightly below or beyond the mark will not affect the normal operation of the gear reducer.
运行后观察油窗中的油位在油窗中间刻线处为宜，略高或略底均不会影响减速机的正常运行。
Before switching on the power, inspect if the liquid and oil level are filled to the normal level as required;
在通电前应检查液位和油位是否按要求加注至正常位置；
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