Liquid Wrench and most likely left hand thread. Two small blocks off wood in
a c-clamp should hold the wheel without damage if the nut is on that tight.

--
Mike
Watch for the bounce.
If ya didn't see it, ya didn't feel it.
If ya see it, it didn't go off.
Old Air Force Munitions Saying
IYAAYAS
"Ken Nuzum" wrote in message
news:Nrydnaa035XTt5LVnZ2dnUVZ_tajnZ2d@massilloncab letv.com...
I am stuck and need some guidance or directions. I have an 8" bench grinder
and I need to change the grinding wheel. I have had no success in getting
the nut off the shaft in order to remove the old wheel (still usable, I
just want to have to grits on the unit). Any suggestions on how to loosen
the nut without damaging the grinding wheel?
I have no idea of manufacturer nor do I have any type of instruction
manual. Bought from Woodcraft about 5-8 years ago.
Thanks in advance.
Ken