Important: When installing the coupler and the servo motor make sure that the shaft keys are in place during the process. It is possible for the key to fall out during installation. Missing key will result in positioning accuracy errors.
Connect the power, brake and the encoder cables to the motor.
Power ON the machine.
Change setting [53 - JOG W/O ZERO RETURN] to ON.
Hand jog the vertical axis until orientation of the new servo motor shaft matches the orientation of the old servo motor shaft.
Turn the machine OFF.
Install the shaft key  in the keyway on the end of the ballscrew.
Install the coupler  on the end of the ballscrew.
Note: Leave the clamping bolt loose at this time.
Orient the motor so the cable connectors are facing the same direction as the old servo motor.
Align the key  on the servo motor shaft with the keyway in the coupler and lower the servo motor onto the housing.
Install the servo motor mounting bolts  and torque them.
Center the coupler  between the ballscrew and the servo motor and torque the clamping bolts .
Install the coupler access cover .