How do i get the drive belt on a model 10550 lawnboy walk behind mower.. like the toro system

Hi,
That model was made four years, but the manual seems to be the same. It is available online at:
https://support.lawnboy.com/portal/server.pt?space=CommunityPage&cached=true&parentname=CommunityPage&parentid=1&in_hi_userid=30163&control=SetCommunity&CommunityID=217&PageID=30006#manualsResultPage
And page 15 tells how to remove the cover. Proabably the nut holding the transmission pulley will have to be loosened to get the belt past the guides and the bracket at the engine pulley will have to have one bolt removed and the other loosened.
Peace,
Clarke