Unplug the washer to prevent electrical shocks and accidental washer activation.
Unscrew and remove the three Phillips-head screws located along the back edge of the washer’s top panel. Slide the panel back, and lift the back edge to remove the panel from the washer.
Remove the 12 screws holding the back panel on the washer. Slide the back panel up, and pull it off the washer.
Grasp the belt near the large pulley. Turn the pulley, while pulling the belt out of alignment with the pulley, until the belt runs off the side of the pulley.
Slide the handle of a screwdriver through the pulley, into the hub behind the pulley. This will keep the pulley from turning while you remove the retaining nut.
Remove the retaining nut with a 21-millimeter socket. Turn the nut counterclockwise until it comes off the retaining stud. Pull the pulley off the stud.