While you wait for answers, we may have found some information which could help you.
Click here for Sander Dust BagHow to release tensioner and change drive belt on sander Pa?
Repair to Craft EP600 Sander?
PES 600 Parkside Orbital Sander?
Replacing rubber sanding pad ?
Where can I get a drive belt for a FERM belt sander FBS-1000?
Parkside orbital sander PES 600?