When the impact crushers work to 400 hours, it will need to add the moderate amount of grease; When the impact crushers work to 2000 hours, it will need to open the spindle assembly to make a thorough cleaning for the bearing. When the bearings work to 7200 hours, it will need to replace the new bearing.
For the above working hours, the premise is that there aren’t any other unforeseen circumstances in the working process of the impact crusher. That is what we call the normal working condition.
