I have a seven year old 4720 with 700 hours. I just bought a five foot 3pt tiller and am having problems when engaging the ground. At first it was OK but after about 30 minutes the PTO shaft quit rotating when the tiller is lowered to engage the ground. It also makes a "ratcheting sound internally. I even loosened the clutch on the tiller to allow slippage if I hit something and not slip internally but it made no difference.
Any ideas?
Any ideas?