"Brigitte J." wrote:

When I try to turn the bolt, the blade turns with it. I'm sure there's a
simple way, but I haven't figured it out.

All help/advice is appreciated.

Thanks,
Brigitte

To keep the blade from moving, I use a little gadget called "Blade
Buster" that I picked up at the local big box store. It works great and
is very simple to use. Here's a link to one for sale on the web:

http://www.gadgetcorner.com/hardw/blade/blade.htm