I removed mine a while ago to clean the back end good and found it came off easy using a torque wrench and my brother sat on it
When I had a puncture the tyre fitter used the same type of torque wrench to do it up to an air gun seems a bit ott.
I also put a zip tie on the ends of the circlip as it had one on before. I did not grease the threads of the nut as I thought this gives a false torque reading as the grease means you can torque it up more?