These holes hide the adjustment screw for the coordinating rollers.
How to adjust glass door machine.
We re going to show you how to adjust the lock and handle on your milgard sliding glass.
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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.
On the bottom portion of your sliding glass door you should see a small hole on each side of the door.
Most sliding glass doors contain two sets of rollers one on each side of the bottom of the door.
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How to adjust door hinges door height compression and weather tightness for your conservatory or french doors.