https://www.openlearning.com/u..../hickeysharma-smejn7
How to Repair Bifold Door Top Roller Guide If your bifold doors are sticking to the wall, they might need a little maintenance. may have to clean and lubricate them or adjust them. The issue could be caused by a loose bolt on the top pivot, or by the top guide roller. This kit includes all the hardware you need to restore your bi-fold wardrobe door to its optimal performance. Remove the Door It may seem complicated and challenging to put in the bifold internal doors however for DIYers