RYOBI 1-1/2 HP router kit help

When placing the z axis control on the router I came upon the attachment not being able to fit as all the instructions I’ve seen. Did I by chance purchase the wrong router for this or am I missing a simple step in the process.

The basic kit was design for the rigid router. Which kit did you buy?

See my response in your other post on this:

I uploaded some pics of how I cut down that rectangular block the knob fits over so the motor coupler would fit.