Place the extruder on the hanger you installed in the previous step as shown in Figure 1.

On the right side of the extruder, insert the other hanger through the extruder mount and into the Y-Tower extusion. Rotate it clockwise and tighten the screw to lock it in place as shown in Figure 2.

You can now pull any excess wire from the top while feeding from the bottom at the extruder to take up any remaining slack.