How do you change a blade drive belt on a 38" 12.5 hp Poulan?

Hi,
Generally it can be done without tools.
Picture attached:
Peace,
Clarke

Thanks, I downloaded the manual and that's what it said too. Now I'm trying to find the correct size. Poulan order department can only tell me the part number not the size. Same for the Tech Support desk.

The part number is 193214.

Thanks for your help

Hi,
Thought I had found the info on that belt, but then found it to be incorrect. Had to Delete a post.
Now I did find it, and it was best I did delete the bad info. The 193214 is 1/2"x90.2" by specs I did finally find. This link did it:
AYP (Sears/Roper) OEM Replacement Belts (http://www.mfgsupply.com/MowerBeltsAYP.html)
Peace,
Clarke

Thanks for your help.