It often requires special wrenches to remove power steering hoses. It is also sometimes necessary to move things out of the way to get to a fitting. Some service information is available from www.autozone.com. Check out their website, they may have some information that will be of help.
i just did mine. a buddy just hit the line with an air hammer with a sharp chizzle bit on it this left me with just the nut got a socket on it 18mm i do believe then it just twisted right out. as long as you got the new line this method works