The belt change out will take place from the front, and the element will be replaced from the back.

The back panel will come off after removing the screws that hold it on. You'll see the element on the right hand side from the rear.

To get the front off you'll need to undo the two screws under the lint filter cover, and then release the clips in each front corner using a putty knife. The top will then hinge back. With that up, you'll see the screws holding the front in place. Remove that and you will see what you're up against as far as the belt goes.

You'll have to keep the top up to remove the screw and clip that holds the top part of the element in place. After that I think you'll find most things self explanatory. Below is a link with the parts breakdown.

Model LER7646JQ0