Your owner's manual should have the diagrams and instructions for belt replacement of this riding mower. I provided the instructions from the owner's manual of model number 917271810 below. I also provided a link for the owner's manual for this model of mower. If your mower has a different model number (917271811 to 917271815), then the belt routing is likely the same. I recommend checking your exact owner's manual to find the proper instructions for belt replacement.
You should also find a belt installation guide decal on the bottom side of the left footrest.
You can find your exact owner's manual online at our Manage My Home website. On the home page, hold your mouse over the square labeled "HOME" in the upper left of the page and choose the option "Products and manuals" from the drop-down menu that appears.
Then enter the following information in the search fields:
Type of Product: Tractor
Model no.: 917271810 (or your exact model number)
If you have any trouble accessing the manual, please call the Manage My Home Member Services Team at 1-800-803-6775, between 8 a.m. and 8 p.m. Central Time. They will be more than happy to help you track down the manual.