I was mowing my lawn w/ my craftsman lawn mower when all of a sudden I mowed a rock by mistake.The mower instantly shut off but when I tried to mow again there was a big circular bald spot in my lawn created fron the right side of the deck!Everything else still works and it still starts up fine but whenever I try to mow the same thing happens after45 seconds of mowing! PLEASE HELP!

I was mowing my lawn w/ my craftsman lawn mower when all of a sudden i mowed a rock by mistake.The mower instantly shut off but when i tried to mow again there was a big circular bald spot in my lawn created fron the right side of the deck!Everything else still works and it still starts up fine but whenever i try to mow the same thing happens after45 seconds of mowing! PLEASE HELP!
I'd gain access to the bottom of the lawn mower to see if something is bent or damaged, maybe even loose. Do that, and then let me know what you find. We can go from there.

Well , there are several possibilities here, but since you are finding a complete circular scalping , you have more than likely bent you blade.