Installing a Single Circuit Ballnut

The common Single Circuit Ballnut.  Depending on what size you have it may be square, but the procedure is the same.
 
Cut the zip tie and remove it from the mandrel tube.

Pull the cut end through the tube, not the big end.
 
Carefully hold the tube in place and remove the rubber bands.
 
Align the mandrel with the end of the ballscrew.
 
Thread the ballnut onto the ballscrew.
 
All done.