I just walked out to start mowing when I noticed the right front tire of my Cub Cadet lt1024 has a flat..really flat. Since I've only owned the tractor about a month I don't want to wreck something as I attempt to remove the tire. I've spun the hubcap, pulled it, tried to pry it off (without too much force). How do I get that thing off and then what can I expect in regards to removing the tire and wheel. The parts list is not much help to me.