I have been a lurker for a couple of years and just joined TBN today.Last week i bought a used MF 1529 with loader (59) hrs to replace my older Kubota L2350. Now everytime i try to start the PTO with my bush hog the shear bolt on the PTO shaft busts. I am sure its operator error, any ideas? Also when i lifted the 3 point hitch all the way up to look under the bush hog it will not come down? i did not get an operators manual and wonder if anyone had some insight? Thanks.