Sliding Door Moves Hard

Slide the door open and shut to move the lubricant around the track making sliding easier.
Sliding door moves hard. Turning this screw raises or lowers the roller. Inwardly bent tracks will pinch rollers and stop. Give the screw a clockwise turn and test to see whether the door slides easier. Most sliding doors have a mechanism called an adjusting screw located at the bottom of the door ends.
Then lift the door up and out of the track laying it down carefully across two sawhorses. Move the door back and forth like you did in step 1 to help the door glide over the oiled areas. Sliding doors are very heavy very breakable and very expensive this is a two person job. Wheels in need.
Rub a thin layer of dry lubricant to the track. Never leave the glass door unattended. This will actually help to move around the lubricant into the harder to reach middle area where the door is constantly sliding and experiencing the friction that makes it stick. First slide open the door completely and remove the head stop.
Why is my sliding glass door hard to open. If the door becomes even harder to open turn the screw in the opposite direction.