A faucet repair diagram is used when doing repairs on a faucet, and it lists and labels the part names as well as the numerical steps to which the parts correlate. A faucet repair diagram is generally specific to a certain brand and model of faucet and varies depending on those criteria. Repair diagrams for faucets come with the initial faucet or with repair kits and are also available online from the manufacturer's website such as PfisterFaucets.com.
Faucet repair diagrams deconstruct an assembled faucet, listing each part and the order in which it is assembled. Each listed part has a part number for replacement purposes. The diagram is a map of the faucet and does not offer any repair assistance.
Online resources are helpful when using a repair diagram, as they can be more detailed than the diagram that is included with the faucet originally. For instance, a Delta faucet features a general diagram for multiple faucet models, but the specific faucet's diagram can be found at DeltaFaucet.com under the Technical Document search. Website diagrams also feature the ability to enlarge the diagram and click on links from it. The online versions are updated to reflect part number changes or new parts that replace discontinued ones.