Step 4 · Clean and Inspect the Linkage
Lay the linkage assembly on the towel. Thoroughly clean all parts of the assembly, paying special attention to the plunger at the bottom and any pivot points. Use a stiff brush, paper towels, and a bucket of hot, soapy water to remove all hair, soap scum, and corrosion. The plunger needs to move freely to operate correctly. Check for any damage or excessive wear on the linkage or the plunger.