A frost-free faucet diagram can be found and printed from Family Handyman's website. Click on the diagram to enlarge it, and then print from the enlarged screen.
Frost-free faucet diagrams are used in the process of fixing a damaged faucet. When repairing the faucet, shut off the water supply, and remove the faucet knob. Secure the faucet's handle whilst unscrewing the packing nut to avoid accidentally unscrewing the threaded joint. On occasion, some frost-free faucets have two packing nuts; both should be removed.
With the packing nuts removed, place the faucet knob into the stem, and turn it in order to easily remove the valve stem. While turning the knob counterclockwise is standard procedure, many models only require the valve stem to be pulled out. Once removed, take off the rubber washer located at the end of the stem, and replace it with a new washer of the identical size. The faucet can be reassembled in the opposite order it came apart.
Frost-free faucets are common in new homes built in areas with unforgiving winters. While they promise not to freeze, they can be manipulated in a way that the rubber washer becomes damaged. This damage is the result of turning the faucet too tightly into the off position, which is commonly done due to the fact that, after the valve is shut off, water trickles out for a few seconds.