Double Arm Alignment Half
Install the respective Alignment half into the double arm.
Note: The bottom alignment half  should be installed to the double arm  so that the larger slot is installed into the double arm key as shown.
Spindle Alignment Half
Install the respective Alignment half into the spindle.
Make sure the spindle alignment half is correctly installed into the spindle such that it is fully seated with the taper.
Note: If it is not fully seated, then the tool-release icon will show up on the screen. If the tool-release icon is not showing up when the spindle alignment half is on in the wrong direction the TRP clamp switch will need to be adjusted, refer to the HSK-A63 - Spindle Drawbar - Push Out procedure to adjust the switch.