My John Deere LX277 just quit going forward or backward. Acts as if free wheeling control is on. I just bought the LX277 as part of a house purchase. While using the 42 inch blade to push snow, the tractor just quit moving. I had run the tractor for a couple of hours moving heavy Iowa snow and it worked good, then just stopped moving. While pushing and towing back to the garage, it acted as if the freewheeling control was on. Freewheeling control on or off makes no difference. I see on this forum page to check the traction drive pulley as it could be stripped. I assume I will have to remove the seat, fenders, and gas tank to get to this. What strips on the traction drive pulley and how do I check for this?