Select the location on the oven where you want to install the lock. The lock should be high enough to be out of reach of small children. You must install it on a flat surface. The area between the handle and the glass door is an appropriate spot.
Dampen a clean cloth with rubbing alcohol. Wipe down the area where you want to install the lock on the front of the oven and on the side.
Insert the tabs on the end of the side plate into the appropriate holes in the front plate to create a hinge. Hold the lock against the oven in the place where you want to install it. Use a pencil to make a small mark along the edge of both the side and front plate.
Unhook the side plate from the front plate. Remove the paper covering the sticky adhesive on the back of the side plate. Press the plate, adhesive side down and prongs toward the front of the oven, into position on the side of the oven in accordance with the marks you made with the pencil.
Remove the paper from the back of the front plate and press it into position on the front of the oven, according to the mark you made with the pencil. Snap the prongs of the side plate into the holes of the front plate to lock the oven door. To open the oven door, squeeze the prongs on the end of the side plate while pulling the door open.