This solution article will explain how you can clean the pulleys on all three spindles.

It is important to keep these pulleys clean, as filament or dirt particles could cause the belt to start sliding on one of the spindles, causing your bed support plate height to become uneven.

Step 1. Make sure your machine is switched off. 

Step 2. Inspect all three pulleys for dirt or filament remainings. These pulleys can be found below each spindle. 

Step 3. When you spot dirt or filament remainings, you can use tweezers to carefully take it off. In case the filament is rotated all around, then pulling while manually rotating the belt can be a best practice. 

Step 4. In case your bed support plate needs to be re-calibrated, please follow the steps in this solution article.