Can't you get the slider off the slide rod? With this type, the lock is not in the slider itself, but in the wall bracket of the rod.
Required
Step-by-step guide
- Find the Allen screw
This is located in the short rod that runs to the wall (wall bracket). - Loosen the screw
Don't remove it completely, just loosening is sufficient. - Pull the slide rod towards you
The rod comes slightly loose from the wall bracket. - Lift the rod upwards
You can now remove the slide rod from the bracket. - Slide the slider down the rod
Now you can remove the old slider. - Install the new slider
Slide this onto the rod. - Reassemble everything
- Rod back in the bracket
- Tighten the Allen screw again