I. Re-adjustment
When you find that the sliding door of the shower enclosure is not operating smoothly, first check for any misalignments. You can then adjust the bottom roller to ensure that the top of the roller is properly seated in the track. If necessary, re-install the sliding glass door. You can also try lowering the bottom of the door until it engages with the bottom track. Then, make a final adjustment to ensure that the door is properly aligned in the track.

Two. Bottom Repair
If all other factors are excluded, inspect the components at the bottom of the shower door for any damage. At this point, lift and slide the bottom of the door vertically to check if the rollers at the bottom of the shower door are damaged. If so, they need to be replaced.
III. Replace the pulleys
If the wear and tear on the track is visible to the naked eye, this indicates that the rollers are damaged. In this case, first remove the mounting screws along the top and bottom edges of the track, and then install and replace the rollers. Make sure to tighten all the new screws securely to fix them to the new track.
Four. Worse parts
Due to the numerous components involved in the sliding wheel mechanism, any abnormal sliding door operation may indicate a damaged component. It is important to inspect the roller and all components for minor damage, as even small defects can affect overall performance. once the cause is identified, it should be replaced immediately.