Step 4 · Prepare the New Disposal
Before mounting, prepare the disposal unit. First, install the power cord. Turn the disposal upside down, remove the electrical cover plate with a screwdriver, and connect the wires from the power cord kit to the disposal's wires (black to black, white to white, green to green ground screw) using wire nuts. Secure the cord with the strain relief clamp. Next, locate the dishwasher inlet port on the side of the disposal. Insert the tip of a flathead screwdriver into the opening and strike it firmly with a hammer to knock out the plastic plug. Reach inside the disposal's grinding chamber and remove the dislodged plug.