Answer has already been posted on this subject please read through the comments on the front page! You will find that the Creda, Indesit,and Hotpoint dryers are the same. Where your jockey wheel and belt is concerned. I had built most of these when i worked for Creda many years ago. To replace the belt is a straight forward procedure. JUST MAKE SURE YOU UNPLUG FROM THE MAINS FIRST!
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix tumble dryers.