A revolving corner cabinet, also referred to as a lazy Susan cabinet, can be prone to sticking and rubbing if not sometimes maintained. Issues arise when something is spilled or a few object falls from the back and gets under the bottom tray. Other causes include overloading the tray or difficulties with the hardware slipping. Don’t live with an annoying cabinet like this. A fix can be performed using a few simple tools in under one hour.
Remove everything from the revolving trays. This could truly be the issue. In case you have an excessive amount of weight on one side in the bottom, it could bend the tray down on one side far enough to make it rub on the underside.
Reach all the way behind the bottom shelf. Feel for any objects that might have fallen off the tray and remove them. Use a small, flat rod to slide under the bottom tray to dislodge any other small items which might have gotten under the tray.
Spin the tray with your fingers. If it dips down on one side when revolving, the tray is bent. Place the flat stick below the side which dips down and pry it up a bit at a time until it revolves apartment without dipping.
Spin the tray with your fingers. In case it still rubs, the article or mechanism may have slipped. There is a bushing on the bottom shelf along with a setscrew in the bushing. Spin the tray before the set screw revolves around where you can view it.
Insert two wooden wedges on each side of the tray. Push them under just enough to encourage the tray and stop it from going. Use a screwdriver to loosen the setscrew. Catch the article with your hand and shake or wiggle it until it drops or slides. You might also have to wiggle the tray with one hand or lift it a bit. This will enable the article to fall down through the bushing around 1/4 inch or more. This will provide the bottom tray more clearance since it will be positioned slightly higher on the article. In turn, it will be less inclined to scrape anything when the wedges are eliminated. Tighten the setscrew with the screwdriver and remove the wedges to complete the repair.