How to Troubleshoot & Replace Whirlpool AP6007928 / WP33001443 Hex Nut

Looked up possible parts via a layout on the web site and ordered the parts I needed, plus a few extras. Figured I'm gonna open this thing once and be done with it. Once I got access to these rollers, via removing the drum from the front, it was an easy fix. The studs that support the rollers were locked so tightly they would not come out. Luckily these were still good and I just elected not to replace them. Dryer works like new! 

Ordered the parts on Sunday and they arrived on Tuesday with standard shipping. Went over today (Sunday), took the dryer apart and installed the new support wheels with new axles, washers and but. Reassembled the dryer, plugged it in and it sounded absolutely quiet. Whole job took about two hours, had to clean the interior while in there, and the girlfriend is very happy. Wonderful experience all the way around. 

Diassembled and replaced tumbler bearings, drum roller axles, drum support rollers, drive belt and cleaned all the lint out of dryer, blower and discharge duct. 

Put I. A new motor. Belt, bearings, wheels. 

At first, I ordered the wrong part (in "kit" of 2 wheels) that I thought was the right part number. Although there was several days delay in getting the correct parts including new wheel spindles, I am now in process of returning the wrong parts while the proper parts that I ordered (after identifying my mistake) arrived QUICKLY and the repair went off without a hitch. 

Replaced both drum support rollers and axles. Also went ahead and replaced dryer drum belt. Had to reinstall old dryer drum belt. I did not check well enough alignment of new belt and it got shredded within 10 minutes of dryer running. Lesson learned -- double / triple check belt alignment and check to be sure it is not twisted -- must be properly installed on drum, motor pulley and tensioner roller. Once the old belt was reinstalled , everything working perfectly. Nice and quiet now. 

Ordered non OEM parts from amazon. Roller bearings came apart 2 belts that were 2 different sizes. Order the OEM, save time, money and problems. The amazon stuff fell apart in 2 weeks literally. It looked just like original but garbage. The stuff from here worked flawlessly. I know my dryer inside and out now due to replacing parts twice. Glad I ordered from here, wish I had done it first. 

The roller nearest the heater housing was the culprit due to drying of the shaft lubricant after constant exposure to heat from the heater housing over the years. Because of the age of the dryer I replaced both tub support rollers, shafts, and fiber washers. I also replaced the belt and tensioner roller. The repair was pretty straight forward and aided by videos, however it did require a lot of tear down (not too difficult) including the removal of the drum. Parts were fairly easy to access for replacement. At the end there were no missing or left over parts and the dryer runs fine and doesn't make a peep! 

By watching some videos I determined that the most likely causes were bad drum support rollers. To be sure, I planned to order two drum support rollers and an idler pulley wheel. Using the exploded parts diagram on this website I easily determined the parts I needed, and I ordered extra hardware--such as support rollers, clips, and washers in case something else was worn or damaged during my repair attempt. I removed a rear access panel and replaced the idler pulley wheel. I then removed the from cover and drum and in a few minutes replaced the drum support rollers. I took photos at each step before removing screws, after removing screws to remember how parts were oriented. The entire job going slowly and carefully, taking pictures and vacuuming lint from inside the cabinet took just under two hours and that included a break to eat dinner! 

Replaced the 2 drum support rollers, and 2 drum roller axles, along with the drum belt. While the machine was torn apart I vacuumed out any and all visible lent from inside the machine.