Quick Answer
To disassemble and reassemble a frost-free hydrant, first turn off the water supply, then disconnect the hose bib, and remove the frost-proof cap to access the valve stem. Loosen the packing nut and slide out the valve stem, allowing you to access the interior components.
Disconnecting the Frost-Proof Cap
To begin disassembling the frost-free hydrant, locate the frost-proof cap, which is typically a clear or translucent plastic or metal cover. Use a wrench or pliers to loosen the retaining ring that holds the cap in place. Once loose, carefully pull the cap straight off, taking care not to damage any threads or seals. Set the cap aside for reassembly later.
Accessing the Valve Stem and Packing Nut
Next, locate the packing nut, usually a large round nut with a washer or gasket attached. Loosen the packing nut by turning it counterclockwise with a wrench. As the nut loosens, the washer or gasket will begin to slide out, allowing you to access the valve stem. Continue to loosen the nut until the stem is free to slide out.
Reassembling the Frost-Free Hydrant
To reassemble the frost-free hydrant, start by sliding the valve stem back into place. Re-tighten the packing nut by turning it clockwise until the washer or gasket is securely seated. Replace the frost-proof cap and tighten the retaining ring to secure it in place. Finally, reconnect the hose bib and turn the water supply back on to test the hydrant for leaks.
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