Hi my name is Jo, I'm a self proclaimed diy want-to-be. I have a dyt 4000 sears riding mower and need to change the drive belt. I've lowered the blade deck and removed the blade belt but have no idea how to get the belt around the pto pulley, can someone please help

Hi,
If you would like to give the 9 digit model number beginning with 917, I will give you a link to the manual. It is normally covered there.
Peace,
Clarke