Replacing the dryer belt and installing the tensioner on this model dryer involves the following steps:
1. UNPLUG the dryer and remove the lint screen.
2. Remove the lower toe panel by inserting a putty knife along the top seam about 2 inches in on each side. This will depress the retaining clip that holds the panel in place and the panel will open.
3. Remove the two screws that were under the lint screen and lift the top panel.
4. Unplug the door switch conector plug and any ground wire that may be installed on the front panel.
5. Locate the screws that hold the front panel in place. There should be one screw on each side in the cabinet interior and two on the lower panel in the front.
6. With the door shut, lean against the front panel and remove the screws that hold it in place. Once the screws are removed, grasp the front panel at the top center and lift straight up to remove.
You should now have complete access to the dryer interior. If the belt is broken, this may cause the idler pulley to come loose. This is normal with no tension on the pulley to hold it in place. To install a new belt and re-install the pulley, follow these steps:
1. Loop the drive belt around the dryer drum with the groove side facing the drum. (Try to line the belt up with the wear marks already on the drum from the previous belt).
2. With the tensioner in your left hand, insert the clip end of the idler pulley into the grooves on the dryer bottom casing with the idler wheel pointing to your left. (The grooves are directly in front of the drive motor.)
3. While holding the tensioner in place, insert the belt
UNDER the wheel with your right hand and pull it up and over the drive motor pulley.
If this does not explain it well enough, you can also verify by going to repairclinic.com. Click on the Repair Help link and look for the "Dryer Belt Diagrams" link under the Special Features section on the next page. Look for Whirlpool
and refer to diagram H.
Once you have the belt installed, re-install the dryer front panel by holding it as you did previously. Line up the holes on the bottom edge of the front panel with the holes on the front edge of the side panels. This can be done by yourself, but an assist may make it easier. Once you have the front panel in place, lean against it to hold it in place and install the mounting screws.
NOTE: Don't forget to reconnect the grounding wire and door switch connector plug. Without the door switch connected, the dryer will not run. Lower the top panel back in place and reinstall the two screws.
NOTE: Placing a piece of duct tape over the dryer vent chute will help safeguard against dropping anything down in the blower fan assembly. If you drop any screws down the chute, you will need to remove the dryer back panel to retrieve them.
If you still have questions, please let me know. I hope this helps you