Hi E3six,
You running on Powerdyne now?
You can try call Obermaier for help (012-2002710 - Simon). But I am not sure whether are they the distributor. Autochild have 3 units (at least up until Oct 05) and they do carry some parts i.e. belt guide. Call them. Their contact is
5569-1101(ask for Brendan)
I have some pics on dismantling the unit. Let me know if you want them
The other nearest place that carries Powerdyne that I know of is in Australia. The website is
http://www.capa.com.au/powerdyne.htm
Cheers
Arms