[henryfinley]

I bought this LTX 1040 two years ago as a refurbished mower. It had been completely overhauled to factory specs, with all new parts and belts. Since then 'Ive put maybe 30 or 40 hours on it, at most. It has developed a nasty habit of throwing the upper drive belt. Not the long lower drive belt, but the smaller upper one. The belt is still in like-new condition When I say throwing, I mean it is coming completely off both the spring loaded slack adjuster pulley, and the right side (starboard) pulley. What I fail to understand is there is no way the belt can get past the guard flange on the slack adjuster pulley, and cannot get past the right pulley because the wheel well as is too close to let the belt come off. In other words, it is physically impossible for the belt to come off these pulleys, yet it DOES. Everything is in proper alignment, and there are no bad bearings or anything jamming. why is this happening? That belt can no more fit through it's guards any more than I can fit through a keyhole. So annoying. What's happening? Thank you