It also goes over what protective measures to take and what tools to use.
True sliding door adjustment.
Clean the sliding glass door track step 1.
This video details how to adjust the tension on a refrigerator or freezer door.
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If the door becomes even harder to open turn the screw in the opposite direction.
Most sliding doors have a mechanism called an adjusting screw located at the bottom of the door ends.
Give the screw a clockwise turn and test to see whether the door slides easier.
Lubricate the sliding glass door track use wd 40 or a silicone based lubricant and spray the entire track.
Turning this screw raises or lowers the roller.