I have a 36" lesco and the right side belt slips. If you push it, it will go but then eventually start slipping. Lesco does not do repairs here. They looked at it and had me replace the spring along with the belt. I have still can't get it to work. So yesterday I attached a bungie cord to the top to help pull down more on that whatever you call it still slips. I don't get it. I also tried cleaning that round thing that comes out from the shaft that the belt goes around. I also took of the arm going to it just to make sure it was getting all the way down. That didn't work either and the brak is not on. Any suggestions. Maybe this belt is the wrong size just by a little bit?