Lt4600 huskie riding mower :the belt that drives the blades keeps comming off .The authorized repair shop has replaced this belt twice the first year and it still comes off !.It's 2 years old . I

SOURCE: Rechargeable lawn mower lacks power

just to let u know CMM1000 mower are on recall for pcboard.
if ur mower is type 1 to 4 then its the subject for recall for convertion to CMM1200.see ur nearest service center right away.

SOURCE: I need to put a blade belt back on my Craftsman yard tractor

If you disengage the Blades like you normally would, this will give you plenty of slack in the belt to put back on. There should be a pulley or lever that tensions the belt when it is engaged and that is what is causing it to be too tight to put back on. Hope this helps

SOURCE: drive belt

You may find that you have the wrong belt - I bought a belt for the correct model and then found that there are two different sizes depending on the exact model - they are 3 inches different in length for my model CTH160 113" and 110". Got correct belt and fits properly now.

SOURCE: My Sears Craftsman Garden Tractor 22HP, dies after it gets hot

Sue your brother is right! I had the same problem and it turned out to be the gas cap. the small breather hole on the top was plugged with dirt. once I cleaned it out I took the rubber gasket out from the bottom of the cap and cleaned that as well. runs great now.

SOURCE: shredding belts

first make sure the belt is not hitting anything when the blade is engaged (engine off), the if ok remove belt and look in pulley grooves for rocks or chips., then run finger all around groove to make sure there is no catches or spurs. If that is all ok then with belt on and engine idleing as slow as possible and blade engaged look and see if pulley is wobbling, BE CAREFULL !! look at the engine pulley first then with EXTREME CAUTION look under deck from opposte side of chute. ( Check with deck at highest setting)