The fast and quick way for one setting only; is to purchase a deck wheel and a bracket. Lower the deck to where you would like to cut the grass. Place you a carpenters level on the front side of the deck. Place the brace on the side / middle of the deck. Then attach the deck wheel the deck is level by using the carpenters level. The deck wheel should level the deck only at one position.
Worsham, September 2006