just had to get in mine to do same job
remove two screws at rear top to get lid off, this slides back and lifts off
remove screw at top of vent housing, twist vent casing and remove, remove inner black vent tube.
go to front panel, remove two screws from top edge of panel and one screw inside right sideat base of control panel
unclip two clips from middle and lift control panel off
remove screw inside control panel (lower left side) and lift front of dryer off, best done whiole dryer tilted back
can then fit drive belt, and refit in same order, remenbering the drum fits inside the front door housing
tried to fit first timne with vent tube in place, will be nightmare to refit, much easier the way I explained, have fun|||do not know,how do you do it ?does the back come of maybe it is the side or bottom or top first then back|||Take the top off first.
Lay the dryer on its front, put an old towel or sheet down first to protect it, then take out all the screws around the back and it should lift off.
beware of the wires attached to it, make sure you do not pull them out.|||If I remember correctly with that dryer. The belt can be replaced from the top.Remove two small self tap screws at back, slide top back lift off. You should then be able to reach in and fit belt. Hope this info helps. RayK Retired Fitter/Plumber.