Just bought a GF1800 today with mower deck and snowblower. Hooked up the snowblower, and made it about 1.5 feet before the PTO disengaged (by itself). The PTO lever linkage seems to be working fine....so I believe the problem is internal (I think this has a hydraulic wet clutch). The motor didn't pull down at all, so it wasn't working hard. Shutting the mower off, and starting it again seems to reset whatever is tripping and allows me to go again. It went further the second, and third and fourth time, but the problem persists. I have seen this problem described in this forum and elsewhere.....but I haven't seen any solutions. Any thoughts? I bought it from a dealer, so hopefully they will stand behind it, but technically it doesn't have warranty.