On my door the holes had plastic plugs in them.
Roller adjust pace sliding door.
Locate the adjustment screws on the lower edges of the door.
Most sliding glass doors contain two sets of rollers one on each side of the bottom of the door.
Inside a standard sliding glass door there are adjustable rollers that help it slide back and forth on the track.
There are holes on your sliding glass door that conceal the adjusting screws to these rollers.
You can alter the height of these rollers by accessing the adjustment screws which are set into slots on the door s outer edges perpendicular with the rollers themselves.
How to adjust sliding glass door rollers for a smoother ride.
Open the door slightly and look at the reveal or.
This is how to adjust the door s rollers to ensure smooth operation and maintain weather.
If your sliding patio door is hard to slide while opening and closing the rollers may need be to adjusted.