Step 1
Pry the tops off the two plastic hinges in back of the seat with a screwdriver to reveal the screws underneath.
Step 2
Secure the nuts underneath the toilet one at a time, then use a screwdriver to unfasten the screws from the top of the toilet. If the nuts are really tight, use a pair of channel locks to keep the nuts in place while the screws are turned.
Step 3
Lift off the old toilet seat and remove the old adhesive patches around the holes. If necessary, employ a putty knife to remove the adhesive patches. Use mineral spirits on an old rag to insure the area is completely clean.
Step 4
Remove the backing off the square pads that came with the new seat and stick the pads over the holes on the toilet.
Step 5
Place the toilet seat so the hinges are positioned over the holes on the toilet.
Step 6
Secure the nuts one at a time under the toilet. Insert each screw through a hole in the top of the toilet and through a hinge, then tighten with a screwdriver. Snap the tops of the hinges into place so they cover the screws.