I want to temporarily remove a self-closing door hinge (to install a dog door). Is there an easy way to do this without removing one half of the hinge from the door or jam (like removing the pins on standard hinges)? There are a couple of allen screws in the unit (one on top, one on the bottom of the barrel). I'm guessing that one or both of these will need to be removed to take the door off the hinges, but wanted to ask before taking it apart.