Although there is more than one design for sliding patio screen doors the most common one employs a pair of rollers on the bottom of the door that fit on a track on the bottom of the frame.
How to install sliding screen door wheels.
First lift your door up and down in the track.
Sliding screen door rollers are spring loaded with adjustment screws located over the wheel or inside the vertical frame.
Check if there is enough room to remove your door without adjusting the rollers.
The increased difficulty occurs when the rollers installed on the screen door become worn rusted or caked with dirt.
Instead these wheels ride the track.
If you can remove the door go to step 2 figure 2.
If not please continue to step 1 figure 1.
Make clockwise turns with a phillips screwdriver to push the wheel outward and raise the door or use counterclockwise turns to retract the wheel and lower the door.
Remove the screen door if you have one.
Over time screen doors become difficult to move along their track.
First lift the rollers off the track by sliding a flat head screwdriver or putty knife under the roller and pushing up.
When you open or close the door it doesn t actually slide.