i have half moon flat side pieces with the 2, 2.5, 3, 3.4" marks on it.. that sets the height of the more at the rear of the tractor. it is on the outside of the back metal hitch attachment. they may be tight so step on the 2 height setting pieces. and it should drop - mine did. after servicing it has worked much better so maybe the greased them or some such thing. you would think that lowering by the handle everything on the unit wold drop but after buying it i removed the deck since i use the bucket 99% of the time and the mower was a backup - which has come in handy a few times. but after the initial removal - it was tight when i installed the mower next year. the weight of the mower will drop it but when no weight - it hung due too tightness.