How does the cartridge come out of the Kohler K 14030 single handle faucet?

Turn the water off to your Kohler K-14030 faucet under the sink. Open the the faucet to make sure the water is completely shut off. Remove the small setscrew cover from the backside of the faucet handle. You should be able to remove it by hand. Insert an 1/8-inch hex wrench in through the opening and into the setscrew. Rotate the setscrew counterclockwise three full turns; you do not need to remove it. Lift the handle off the faucet. Unscrew the bonnet nut, or cover, from on top of the cartridge retaining nut; counterclockwise until removed. This nut should be remove by hand as well. Use a large adjustable wrench to unscrew the cartridge-retaining nut counterclockwise until removed. Grasp the cartridge stem with pliers and lift it out of the faucet body. You may need to gently rock it back and forth until the suction from the seal ring releases.