Once the old doorbell ringer was removed, I needed to expose the wires again in order to attach the new ringer. I used wire cutters to just barely nick the insulation surrounding the wires. Using my thumbnail, I pulled the insulation away to expose the wires. In the photo below, one wire was done, and the nick in the other one is visible in preparation for removing it, too.
You need to be super careful when using wire cutters to cut away the insulation surrounding the wires. Too much pressure and you can easily cut right through your wiring. Since I had a limited amount of wire to work with, I didn’t want to risk cutting all the way through, so I found that just barely nicking into the insulation and pulling it away with my thumbnail worked very well.
Now both wires were exposed and ready for the doorbell ringer.
I loosened the screws on the new doorbell ringer (see white arrow below) in preparation for the install. Be careful that you don’t unscrew them too far out. I did that with one of the screws, and it took me a while to find it on the floor of the porch because they are so tiny!
While we’re looking at this picture below, notice the black plate sticking out here from the pineapple part of the ringer. That is the mounting plate. Some of the Michael Healy doorbell ringers are designed so that the plate is removed from the decorative front part of the ringer, in this case pineapple. I briefly attempted to unscrew the hinge screw, but it just spun around and around. I didn’t want to risk breaking the mechanism, so I opted to install the doorknocker as one piece instead of separating the hinge plate.