wrote:
On Thursday, June 10, 2010 9:51:29 AM UTC-5, gray asphalt wrote:
Ryobi from Home Depot ... I realize it's a reverse thread.
Ryobi supples two wrenches and there seems to plenty
of torque. Still under return for 45 more days but I hate to
return an item this expensive because someone overightened
the nut at the factory. If I get the nut off will I have damaged
anything? ... I mean if the damage isn't obvious. Is there any
damage done from overtightening in the first place?

I have the same issue except that I change the blade one time and now I
can't get the darn thing off. Tried for about 2 hours still no success. Grrrrrrrrrrrrrrr

For sure you loosen the arbor nut in the direction that the blade spins.