Repair a squeaky Whirlpool Duet dryer by lubricating the dryer spindles. This requires Phillips, hex-head and flat-head screwdrivers, sewing machine oil and a vacuum cleaner.
Before starting repairs, unplug the dryer from the outlet or twist the gas valve completely closed for a gas dryer. Pull the dryer away from the wall to access the back. Use the hex-head screwdriver to detach the back flange of the dryer. Once the screws are removed, the flange can be moved and the panel underneath removed, exposing the electronic board bracket.
Next, use the Phillips screwdriver to remove the electronic board bracket. The control console is underneath, and it is connected with two more screws. Removing them allows you to remove the control console. Take out the lint trap to expose the lower-front access panel. Remove it using the hex-head screwdriver.
Now, the drive motor, idler pulley and dryer belt are exposed. Remove the belt, and unplug the moisture sensor connector from both the main harness connector and the electronics board. Remove the exposed front panel. Just beyond the front panel is the dryer drum and belt. Remove the belt, and take the drum out.
Finally, vacuum away any lint inside the rollers in the dryer. Then, remove the rollers from the spindles, and douse the spindles in oil, which should prevent excessive squeaking. Replace the removed pieces, and connect the dryer to the electrical outlet.