How do you remove a old moen shower spout?

Turn off water. Bleed lines from the lowest faucet on the pipe run. take off cap over the knob. remove screw. remove cap. value stem should be exposed. Use appx. 5/8th wrench to loosen stem. Hold copper pipe as to not break while loosening. Once broken free should be able to remove the rest of the way by hand.

re attach in reverse order. Turn water back on.