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2. Slide the ball nut down the arbor to the screw shaft. With light pressure pushing the nut towards the screw, rotate the nut until you feel the balls drop into the screw thread. Then continue to rotate the nut onto the screw.
To transfer the ball nut to the arbor, reverse these steps.
CAUTION: When end machining makes it impossible to bring the arbor adjacent to the shaft ball grooves, wrap the machined portion with tape to the nominal O.D. of the arbor. The tape will permit the ball nut to slide over the machined area without the balls dropping into machined irregularities in the shaft.
CAUTION: Extreme care must be taken to prevent the ball nut from sliding off the end of the screw shaft during installation and handling. Temporary stops can be made by wrapping tape around the shaft ball grooves at each end. Be sure to remove the tape and any residual adhesive after the ball screw assembly is properly installed.