Apply a lubricant to both upper and lower tracks to keep the door hardware clean and operating freely.
How to fix sliding glass door handle lock.
How to repair a sliding door lock.
Usually you buy just the mortised steel lock assembly that fits within the door and reuse the old handles and actuating lever.
The best way to lubricate any lock is to disassemble it and use an aerosol lubricant to flush away grime and coat the moving parts of the lock.
To fix weatherstrippingthat s no longer protecting you from the elements loosen its staples with a screwdriver then pull it from the door prying gently with a putty knife if necessary.
On some sliding glass door locks the door handles have long screws that go right through the steel mortised lock and there is usually a actuating lever that slides into a rectangular hole in the lock.
Step 6 test again.
Remove any additional staples or glue residue.
It might become difficult to insert your key into an old sliding door lock over time.
Tighten the screws with a phillips head screw driver.
Step 5 reattach the handle.
You just put the handles on either side of the door and screw them together.
It was as simple as two screws.
Place the interior side of the door lock frame into the door.
You should find a few screws around the edge of the handle which need to be unscrewed or you may have a screw on the edge of the door frame.
Once you get the key in the lock it may become difficult to turn the cylinder.
In addition to cleaning and lubricating sliding door tracks you want to lubricate the door lock.
Position your door handle over the screw holes and hand tighten both screws.
You may need to pry it off with the edge of a flat headed screwdriver if it has been on the door a while.
I squirted it in the door handle holes as well as the side of the door where the lock comes out.
Remove these screws and the handle should simply fall off.
Close the sliding door and engage the door lock again.
Install the new weatherstripping as the directions indicate making sure to orient the flap correctly.