Step 4 · Disassemble Faucet Handle and Packing Nut
If tightening the nut didn't work, you'll need to replace the packing washer. First, ensure the water is shut off. Use a screwdriver (typically a Phillips head) to remove the screw located in the center of the faucet handle. Once the screw is out, pull the handle straight off the grooved end of the valve stem. Next, use your adjustable wrench to turn the packing nut counter-clockwise until it is completely unscrewed from the faucet body. Slide the nut off the valve stem.