Small Engines (Lawn Mowers, etc.): LT0145 KEEPS THROWING BELT ??????, houseing, cub cadet

Question
CUB CADET LT1045 KEEPS THROWING IT'S BELT I FOUND TWO OF THE SPINES IN THE DECK PULLEYS WERE ROUNDED OUT AND SO WERE THE SHAFTS. I REPLACED THE ENTIRE SPINDLE HOUSEING ON BOTH WITH OEM PARTS AND THE BEARING ON THE THIRD. REINSTALLED DECK LEVELED STILL THROWS THE BELT ?
NEED HELP!!!!!!!1

Answer
This is one of the most challenging problems to fix.
Did you replace the belt?
Does the belt come off in all cutting heights?  When you lower the deck the belt will change positions, kind of mis-aligning it; this occurs on almost all riders.

When the belt first came off did it tear off or mis-align any belt guides?  This may be difficult to find but if you go to mtd-products.com you can pull up the illustrated parts lists and maybe identify a missing belt guide.  You can also clean/wash the deck and carefully inspect parts to see if there is rust or paint missing where a guide might have been.

Let me know if this helps.
Eric