I finally got around to installing the deck on my 220 today after having done a spindle bearing replacement and some welding/painting to the shell over the winter. My 220 is my occasional use yard tug so I didn't have a need to install the deck 'till I got the urge. Got the deck on in a jiffy, pulled out of the garage, engaged the PTO and man did that deck sound nice, quiet and smooth- for all of about 10sec. All of a sudden *BINK*, the deck drive pulley pops out about a foot in front of the tractor like a piece of toast and the deck coasts to a stop.:banghead3 Apparently I didn't torque the pulley nut enough.:crybaby: Of course the woodruff key and nut are no where to be found. Beware of loose nuts folks.