Sure to rotate the pump shaft when pouring lubricating grease, in order that the grease can get into packing cavity fully until have grease oozed out from gland.
注入润滑脂时必须旋转泵轴,以使其充分进入填料腔,直到填料压盖端有油脂渗出为止。
2
The use of O-ring NBR seals should be based on the property of lubricating greases in order to increase the reliability of products.