How do you get the blades off a Craftsman Riding mower when you turn the bolt the pulley rotates?

You need to get deck about 6" off ground for working room. Have someone hold a

blade while you give wrench a good bump with block of wood or soft face hammer to break the nut loose. Use something to protect your hands-handling the blades. They can cut you, as I did. When reinstalling the blades, be sure bevel of blade is turned up, or they won't cut when running. Only hold the pulley in starting the nut back, until you

can hold the blade. Older mowers with friction type blade holding will be much harder

to tighten and may be a special tool for that. Use all safety procedures and check the

factory manual recommendations for doing this. You can do it, it worked for me!