To clean and lubricate the hardware of a sliding closet door use a stiff brush a toothbrush or a hand vacuum to clean dust from the tracks.
Sliding door moves hard.
Because sliding doors don t fold out the way bifold doors do they allow access to only half the width of the opening at a time.
Sliding doors are very heavy very breakable and very expensive this is a two person job.
Then lift the door up and out of the track laying it down carefully across two sawhorses.
Do not use oily lubricants on the track as this can.
Rub a thin layer of dry lubricant to the track.
First slide open the door completely and remove the head stop.
This adjustment screw will move the roller height up or down and thus your sliding glass door height will go up or down by as much as 1 4 inch or 1 2 cm.
Never leave the glass door unattended.
If the sliding door is still sticky after the tracks have been cleaned use powdered graphite or silicone lubricant to ease things along.
Use an aerosol lubricant to lubricate all the door rollers.