The upper guide of the sliding door is mounted on a shaft that is mounted in a bracket with a nut fitting.
If the sliding door has not been maintained for a long period of time, causing the assembly to seize up, it regularly happens that not only the roller needs to be replaced, but also the fixing pin cannot be used again.
Remember that the guide roller rotates on the axle, with rust pitting causing additional play. In this case, replace the axle, and by lubricating it with lithium grease at each service, you will probably never need to replace it again.....
Useful information from Paruzzi magazine and from our YouTube channel :
Look for more technical articles on the page Paruzzi Magazine