How to oil a door lock
3 Jun 2019 To lubricate a door lock, turn the doorknob so the latch recesses into the faceplate. 4. Apply the lubricant. Place the end of the straw into the latch How often do locks need to be oiled? Precautionary measures; What parts have to be oiled? How to lubricate a door lock? What to use for lubricating a lever