I have sears craftsman riding mower model#917252681138 My drive belt came off I need help to find diagram to get it back on or some one to tell me how to do it.Thanks , Peter

Most Sears tracrtors have a decal showing the belt diagram. Clean off your deck and look. The manual has a diagram, if you lost yours you can buy a new one at Parts & Accessories | Shop & Find Lawn & Garden, Appliance Parts at Sears PartsDirect | SearsPartsDirect.com be sure to insert a period after the 917. I think the bigger question is why did the belt come off. If it broke then its obvious but if the belt is intact something else is failing,maybe a pulley or a keeper.