Hi - this is not easy. Unplug & leave for capacitors to dicharge as will be exposed (24hrs). From the rear, remove 4 top screws holding top cover, pull up & forward to remove (be forcefull). From the back, the left panel must be removed. Remove top screw to front & then 3 rear screws. Scewdriver assist to remove panel. Drive is exposed with worm on motor & idler above. Clear debris of old belt. Release back cover screws & pull forward to fit belt around drum, around worm on motor & then rotate drum to roll back of belt around idler. Re assemble! Fragility of drive may mean belt may not last long. Enjoy & best of luck!!
Big John.
JohnO, November 2008