how do I fit an Indesit tumble drier drive belt?

I can hear the motor running and feel the heat on but the drum is not turning. Believe the belt drive is broken. Took the some of the back off which turned out the be the heating elements. Had the top off but couldnt see the broken belt. Assume it goes on the front lip of the drum.
Took out an unbelievable amount of lint. Which bits would i need to take off to gain the appropraie access