Step 3 · Remove the Cap and Cam Assembly
With the handle removed, you will see a chrome dome-shaped cap. Unscrew this cap by turning it counter-clockwise. It should be hand-tight, but if it's stuck, wrap a rag around it and use adjustable pliers to get a better grip and avoid scratching the finish. Once the cap is off, lift out the plastic cam and the rubber cam seal beneath it. Note their orientation for reassembly.