While you wait for answers, we may have found some information which could help you.
Click here for Belt Replace Sander
FERM belt slipping?
How to release tensioner and change drive belt on sander Pa?
PES 600 Parkside Orbital Sander?
Parkside orbital sander PES 600?
Power Craft 2408 950W Belt Sander?
How can I get it working again please?