You have to reach through the front (once the front is off) between the drum and frame. Push the idler pulley to the right and hook it on to the motor bracket. That will keep the tension off the belt. You may have to take off two screws (one on each side) on the side panel to allow you to flex the sides to get the drum to slide forward. Make note at the way the belt runs around the idler when reassemling.

Thanks for your help. On this model I had to take off the back as well to get access to the pulley. So as a resul the top front and back had to be removed, then the slides, belt and drum just to replace the teflon bearing.