How do I disengage rear wheels to push lawn tractor?

[Cet]

Craftsman 247.28881 lawn tractor, 7 speed, 42" deck

How do I disengage the rear wheels so that I can push (move) the mower? My previous lawn tractor had a lever on the rear end that would perform this function and allowed the mower to be pushed.

 

[wjjones]

There should be a free wheel lever on the back pull it out for pushing the tractor by hand push in to re-engage the trans. If it is a geared tranny it should just be placed in nuetral.