One unit is the door that you slide and the other unit is stationary.
How to change rollers on sliding glass patio door.
How to replace the roller assemblies in a glass sliding door i made this video because i needed to replace the slide rollers in my 10 year old glass sliding.
Place the screen doors safely off to the side until you are ready to put them back.
1 your patio glass door will have two separate glass units.
How to replace the rollers on your patio door.
Replace the roller screws and use your phillips screwdriver to turn them clockwise until tight.
Remove the screen door if you have one.
Make sure the rollers spin sufficiently before re installing your sliding glass door.
Insert the new rollers in the door lining up the holes on the rollers with the holes in the bottom of the door insert the new rollers in place.