How do I remove the Moen kitchen faucet cartridge for replacement or repair?

To remove a Moen kitchen faucet cartridge for replacement or repair, first turn off the water supply to the faucet. Then, use a wrench to loosen and remove the retaining nut that holds the cartridge in place. Once the nut is removed, you can pull out the cartridge from the faucet body. Be sure to note the orientation of the cartridge before removing it so you can install the new one correctly.