Clogging on most decks is the result of cutting when you either have a lush, thick lawn or are cutting when the grass is too wet. Moisture in the grass causes it to stick to what ever it comes into contact with. That being said, I use a floor jack to raise the front of the tractor and then lay on a nice piece of carpet to get under with a putty knife. To some this may not be the easiest way to do it, but has worked for me for over 30 years.