All oil lubricated bearings shall have housings fitted with means of drainage, visual oil level indicator and capped filler or a constant level oiler which is accessible whilst the unit is operating.

• 所有油润滑轴承应具有外罩装有手段，排水系统，视觉石油一级指标和上限填料或不断涂油机的水平，这是方便，而该单位的经营。