Cub Cadet GT2523 Issue

I purchased a used GT2523 is good shape. Ran into a issue now. Just snapped the PTO / Drive belt for the 54" deck. No problem happens right. Just purchased a new belt from the local cub cadet dealer all 35.00 bucks worth. Put it on, started mowing today, ran about 1 hour or so, and now snapped the new belt.

Any idea's. Blew a fuse too. Which I replaced.

Thanks

Lew