Inside a standard sliding glass door there are adjustable rollers that help it slide back and forth on the track.
Tilt and slide patio door adjustment.
Start by adjusting with the door closed.
Use an allen key on the screw at the door side of the hinge.
The most common type is the tilt and turn mechanism.
Most sliding doors have a mechanism called an adjusting screw located at the bottom of the door ends.
Pay attention to the following steps.
The locking pin is located at the side of the handle.
There are holes on your sliding glass door that conceal the adjusting screws to these rollers.
Tweak the hinges until you get a smooth open and close.
Turning this screw raises or lowers the roller.
The structure of a tilt and turn system.
If a patio door is difficult to operate won t lock properly or is loose or drafty make adjustments to the roller latch or strike to fix the issue.
Give the screw a clockwise turn and test to see whether the door slides easier.
Turn 1 2 rotations clockwise and then test to see if it still drags.
On my door the holes had plastic plugs in them.
How to adjust sliding glass door rollers for a smoother ride.