The spring-loaded idler pulley exerts pressure
and keeps the drive belt tight so it grips the dryer drum and rotates the drum during
the drying cycle. When the idler pulley is worn or damaged, it squeals or squeaks when
the dryer is running. If the idler pulley makes noise when the dryer is running, follow
the step-by-step instructions in this dryer repair guide to replace it with a manufacturer-approved
replacement part. Before you begin, wear work gloves to protect your hands. Unplug the dryer.
Pull the lint screen out of the housing in the top panel of the dryer. Use a Phillips
screwdriver to remove the 2 screws that secure the lint screen housing to the top panel.
Push a putty knife under the lid near the left and right edges of the front of the dryer.
Lift the top and prop it securely against the wall behind the dryer. Use a slot screwdriver
to release the locking tab on the wire harness plug for the door switch. Use a nut driver
to remove the front panel mounting screws from the inside of the cabinet. Pull the front
panel forward slightly, and then lift and unhook it from the 2 bottom hangers. Pull
the front panel off of the dryer and set it aside. Take a digital picture of the configuration
of the drive belt on the idler pulley and the motor pulley so you can install it correctly.
Push the idler pulley to the right to release tension on the drive belt. Release the drive
belt from the drive motor pulley and pull it out of the idler pulley. Pull the idler
pulley out of the bracket in the base of the dryer. Install the idler pulley on the bracket
at the base of the dryer and thread the drive belt through the new idler pulley. Push the
idler pulley to the right and loop the drive belt over the motor pulley. Position the front
panel on the hangers at the bottom of the cabinet. Line up the mounting screw holes
and reinstall the screws in the top of the front panel to secure it to the dryer cabinet.
Plug the wire harness back into the plug on the door switch. Lower the top panel and snap
it into place. Reinstall the screws in the lint duct housing and reinstall the lint screen.
Plug the dryer into the wall outlet.