How to Change a Lockset

Changing lock-sets requires only a few tools and some basic knowledge of the task. Some things to do before removing the existing lock-set are verifying the thickness of the door and checking the "back-set" on the door and the "function" of the lock-set. The "back-set" is the dimension from the edge of the door to the center of the large lock-set hole in the face of the door. The "function" refers to how the lock-set operates; for example, the function of the lock-set without a locking mechanism is a "passage" lock-set.

• 1

  Open the door to expose the edge of it.

• 2

  Use the screwdriver to remove the two screws which attach the latch to the door.

• 3

  Remove the two screws from the plate at the knob (escutcheon) of the lock-set.

• 4

  Pull the knobs on both sides of the door and remove them.

• 5

  Remove the latch by inserting the index finger into the lock-set hole and push the latch out.

• 6

  Install the new latch on the door edge.

• 7

  Install the two screws supplied with the new lock into the two holes in the latch plate.

• 8

  Install the key knob of the new lock-set by inserting the stem into the hole in the latch.

• 9

  Install the inside knob piece by placing it over the stem of the key side knob.

• 10

  Align the mounting holes in the escutcheon plates and install the two mounting screws,

• 11

  Check the lock for correct operation.