Last month my PTO just stopped while I was mowing. I found wires melted and/or pulled out from the bottom of the clutch. My dealer indicated that it would require a new clutch which was installed May 27. Yesterday, I was mowing with about 4 hours on the new clutch when the PTO just stopped as I was mowing. I had started mowing and it ran fine for about 45 minutes. I inspected the mower and the wiring seemed fine and the fuse was fine. When I called the dealer he thought I needed a new PTO switch and said he should have one in a few days. Does anyone have an idea what this might be? It seems logical that a switch would just not work when engaged rather than fail after the clutch is engaged and the blades are working. Any advice you can give me would be appreciated.