It depends on the tractor as to what type of PTO you have. On some tractors they have a live PTO by being equipped with a 2 stage clutch. Imagine you are tractoring along with the PTO engaged. You press the clutch half way in and the tractor comes to a stop but the PTO is still turning. Press the clutch all the way in and the PTO stops. Some tractors have live independent with out even having a clutch. I had a John Deere 855 that had a lever on the dash board that engaged the clutch. The tractor was hydrostatic and did not have a clutch. The YM1500D does not have a live PTO. My gripe about people selling these tractors as live PTO machines is the safety hazard of those comments. Lets imagine you are bush hoging with your YM1500D and you come upon a ditch, you press the clutch. What happens? You may drive right off into the ditch!!! The PTO on your tractor is connected to the rear axle of your tractor and even though you have clutched the tractor therefore disengaging the engine from the transmission, the bushhog with all it's momentum is still spinning, and spinning it's drive shaft which is connected to the PTO with is connected to the axle which is turning the wheels that are headed for the ditch! There is a simple fix for this and it is called an over run coupler, it is a handy little device tha goes between the PTO shaft and the drive shaft of the bush hog. The bush hog is really the only implement that needs the over run because of the momentum that it carries when that blade gets up to speed. Sorry to be so long, but I hope it clears things up.