While you wait for answers, we may have found some information which could help you.
Click here for Simpson Dryer Brokensimpson maxi dry 452 tenson pully spring?
Simpson?
The belt on the dryer stops when going the other way?
Simpson Sirocco 450 does not heat up?
Broken hinge on Simpson Scirocco 555 dryer?
How do I free up my jammed drive motor ?