I have a Great Dane Super Surfer. One of the idler pulleys seems to have a problem. The machine is a year old. Has 333 hours on it. I'm on the the third pulley. I think it's a design problem. The pulley seems to get really hot when in use. It's just burning up the bearings. Gets too hot to touch after running for only a minute. I've checked the alignment and that seems to be fine. I've used original replacements and one Scag pulley. Makes little difference. There is another almost identical pulley on the other side that has a spring tensioner on it that seems to run fine. This problem gets really expensive when the pulley goes and takes the belt with it. Has anyone else had this problem or have any suggestions? I've found that Great Dane is just about useless when it comes to design problems. Took both drive wheels falling off my machine for them to finally admit that the bolts weren't strong enough.