1. Pry off the index cap on top of the faucet, and remove the handle screw underneath the cap.

2. Remove the faucet handle by lifting it up and tilting it backwards.

3. Remove the threaded retaining ring with channel-type pliers. To prevent scratching the ring, wrap masking tape around the jaws of the pliers. Remove any retaining clip holding the cartridge in place.

4. Grip the top of the cartridge with the pliers, and pull straight up to remove the cartridge. Install the replacement cartridge so that the tab on the cartridge faces forward. (If you find the hot and cold controls are reversed, rotate the cartridge 180°.)

5. Remove the spout by pulling up and twisting, then cut off the old O-rings with a utility knife. Coat the new O-rings with heatproof grease and install them.

6. Reattach the spout. Screw the retaining ring onto the faucet, and tighten it with the pliers. Attach the handle, handle screw, and index cap.