1. A mill all lubricating oil mill put into continuous operation a month should be all released, thoroughly cleaned and replaced with new oil. About oil change once every six months after the combination of repair.
2. each lubrication point of the ball mill lubrication and oil level height at least every four hours, check again.
3. the ball mill operation, the main bearing oil temperature rise does not exceed 55 ℃.
4. the normal operation of the mill, the transmission shaft and reducer temperature rise does not exceed 55 ℃, not exceeding 60 ℃.
5. a large ball mill pinion drive is smooth, no abnormal noise. Necessary, timely adjustment of the gap.
6. ball mill running smoothly, without a strong shock.
7. ball mill motor current should be no unusual fluctuations.
8. The connected fastener loosening, joint surface spill water of the five tax evasion, seamless mine phenomenon.
9. the ball is added according to the wear in a timely manner.
10. if the mill is not normal situation should immediately stop grinding repair. inverter also has a similar effect.
11. the ball mill liner wear 70% or 70mm long the crack should be replaced.
12. ball mill liner bolts for damage caused by the liner loose should be replaced.
13. mill main bearing is badly worn should be replaced.
14. grid ball mill, grate plate wear and tear can not be welding repair should be replaced.
15. mill gear gear surface wear to a certain degree of upside to continue to use.
16. severe wear of the ball mill pinion should be replaced.
17. ball mill and out feed screw wear and tear should timely repair welding, wear to not welding repair should be replaced.
18. the ball mill bolt loose or damaged should be repaired promptly.

With its high quality products such as Belt conveyor, Limestone dryer, Sand maker, Impact crusher, Henan Hongxing mining machinery Co.Ltd has ascended in the front rank of the world in the exporting of mining equipments.