Three vertical mill grinding roll of Benxi Yongxing Production workshop used to be on the original pump mounted on the frame, resulting in a period of about 400mm was walking distance upward trend, resulting in increased resistance to oil return. Roller oil for returning is not always smooth, then the back roller will often leak, resulting in increased cost of oil. At the same time oil is not smooth roller back problems have resulted in the production process required to regularly back down to check or replace the pump head, affecting the normal operation of the vertical mill, reducing the operating rate of the equipment.

   To solve this problem, the production department will take advantage of downtime shifted to scavenge pump stand polished table. After the pump displacement, the first is to ensure the passage of the tubing to be well maintained by the high trend continued to drop, so that the oil flow back to the roller is no longer a problem due to poor back to the oil spill caused by the occurrence, reducing the waste lubricating oil. In addition due to the return to reduce oil resistance, wear the pump head is also improved, thereby increasing the operating rate of the equipment, reduce the frequency of maintenance of equipment, so that the service life of the equipment can be effectively extended.