Mine was quite hard to move once I got it snugged down, so much so that I was concerned that I might screw something up. I asked a similar question to yours, waited a bit, and decided to move forward. I put a short length of pipe over my ratchet handle for lack of proper breaker bar. I applied some muscle and it cracked. I thought the worst, that I had snapped or stripped the bolt. Upon investigation the assembly slipped easily off the rotor. I would warn you to remove it slowly so as to maintain the small pieces and springs. I was "lucky" and corrosion had mine gummed into place. I was able to clean and reinstall mine and it works beautifully. So often that " go ahead and try again" thought process has resolved things that I thought were dead ends. Good luck with your project!
