I have a double sliding door with a lock, that only works if I lift one side by about 1-2mm. This requieres a lot of force, since this is a solid wood door. The doors do not seem to be parallel to each other. Illustration:
The doors appears to be mounted in a way that makes adjustments rather hard. Do I have to unscrew the castors from the door and then remove them to try to adjust the distance? The doors are completely inside the door frame.
Edit: After the suggestion I tried to move/remove the stop element. It is loose after unscrewing it, but can't be moved or removed.
Best Answer
There's usually a removable stop or jamb component that would allow you to lift the doors off the track. You may also need to remove a channel or rod to allow the doors to be swung outward at the bottom.
Then you'd make adjustments to the bracket length using the screws you can see there. Modern hardware has more convenient means of adjustment.