I was changing back from my dado blades to a 10" rip blade on my Grizzly 1023L table saw. Normally I can spin the nut on until it touches the blade. Now the Arbor easily spins clockwise as I try to turn the nut. I must have spent 15 minutes figuring out how to elegantly grab the arbor to stop it from spinning while tightening the nut. Once tightened, the arbor and table saw seemed to run and cut normally. What's going on? Is the Armature worn or ? Needs new motor? I could probably figure out a better way to freeze the arbor while putting a nut on it. But that's not a real fix. I would prefer to "fix" the problem. Any guidance is greatly appreciated.
Don M