Your lawnmower blades is not turningwhat should you do?

The first thing to do is to check that the lawnmower belt is going around all of the pulleys in order (check manual for belt route). If the belt is on correctly, then make sure that it is tight around the pulleys and is not slipping. If that is not happening either, raise the deck to its maximum height. Then peek under the deck to see if anything is wrapped around or catching the blade. If you cant see under it, drive it onto a ramp or raise front end somehow so you can see under the deck. Also, on some models, the deck comes out from under the mower (consult the owner's manual). Then you should be able to determine the cause.