1. Park the mower on a level surface and engage the parking brake. Make sure the mower is turned off and the engine has completely cooled down before starting any maintenance.
2. Locate the blade bolts. The blade bolts are usually located on the underside of the mower deck. They secure the mower blades to the mower deck.
3. Use a socket wrench or ratchet with the appropriate size socket to turn the blade bolts. Turn the blade bolts counterclockwise until they are loosened and can be removed by hand.
4. Remove the blade bolts and blades. Once the blade bolts are removed, you can lift the mower blades off of the deck.
5. Inspect the blade bolts and blades for wear or damage. If the blade bolts or blades are damaged or excessively worn, they should be replaced.
6. Reinstall the blades and blade bolts. When reinstalling the blades, make sure that they are aligned correctly and that the blade bolts are tightened securely.
Note: The exact steps and location of the blade bolts may vary slightly depending on the specific model of Craftsman riding mower you have. Always refer to the owner's manual for your specific model for detailed instructions.