Remove the door from the track.
How to fix broken plastic track on sliding glass door.
Then using screws with a thread diameter no larger than the width of the original track partially screw them securely equally spaced in a line from one side of the break to the other.
First locate the roller adjustment screws and use a screwdriver to turn the screws counterclockwise.
With the wheel raised pull the corner of the frame out of the track.
If a malfunctioning sliding door is a chronic problem see if the track is dirty.
This will retract the rollers and make the door flush with the track.
Remove the door from the track.
Built up dirt or loose debris can cause a door to stop sliding and ride off the track.
Do the same at the other corner and then remove the door by pulling it down and out of the upper track.
To start your sliding glass door adjustment project first lift or lower the door on the track with a screwdriver or allen wrench.
Locate the two adjusting screws at the bottom of the door on the face or edge of the door and pry off the trim caps that cover the screws.
Lift one wheel off the screen door track using your finger or a screwdriver.
Raise it just enough to clear the track and roll smoothly.
The screw heads should be higher than the height of the original track.
Then remove the door stop at the top of the frame which should be as simple as unscrewing it.
Use a wire brush to clean off the dirt or debris.
Use the blade of an old screwdriver to pry stubborn dirt loose.
Open the door about half way lift it straight up and pull the bottom toward yourself until it is free of the track.
Keep a firm grip on both edges of the door while.
Here s how you can clean the rollers and the track.
The corners and the area where the track borders the door jamb will require the most attention.