Steve, the manual is available for you to download from here. Page 10 will show you how to do it. The belt itself is a 1/2 inch by 84-3/8 inches. Available from Sears of course, part number 140218. Good Luck.
We have a chance to guarantee our right to repair electronic
equipment—like smartphones, computers, and even farm equipment. This is a once-in-a-generation
chance to protect local repair jobs—the corner mom-and-pop repair shops that
keep getting squeezed out by manufacturers.
Join the cause and tell your state representative to support Right to Repair. Tell them you believe repair should be fair, affordable, and accessible. Stand up for your right to repair!