Linear rails are so precise that a slight hit during transportation or assembly might cause them to run unsmooth.
Why?
A slight hit may cause End seals or End caps of the linear carriages to drop down and choke the movement.
How to fix it?
Pretty easy. Use a rubber mallet to lightly tap some points of linear carriages, so that the end caps or end seals can move away.
For more detail, please contact us info@cnclinearrail.com
