OK. Many thanks.
Once the Allen bolts are loosened (they feel captive in that they spin but don't remove) the wheel should come off with some persuasion?! It feels extremely tight to me and I wouldn't want to damage it (further).
On my Moto-Lita steering wheel there are nuts on the rear of the steering wheel boss.
These nuts have to be removed from the bolts before the bolts come free from the boss.
Once all of the bolts are removed, the steering wheel should lift free from the boss.
I am wondering if the installers used some adhesive to hold the steering wheel onto the boss during assembly.
