Hi, I have a DK 40 . I also had my pto get "stuck" up high. However it was all my doing. There is a knob just under the front of the seat- behind your heel,l that may have been turned by your foot.It looks like a seat adjustment knob.That solved my problem -It is the speed adjustment for the pto . The manual calls it a lever but it is a star shaped knob. bordercollie
