OK NormK, I have added a couple of photos showing the Deck Belt & the Drive Belt sitting in their respective pulleys.
If what you said about where they should sit on the pulleys, both are wrong?
In the past 10 years since getting this rideon as a trade in from a Husqvarna Dealer in Sydney, both sets of belts have been wrong.
I have only replaced the belts since owning it once. I have all 4 belts here.