When my tractor was delivered this summer, the driver showed me everything on the tractor, including taking the loader off and putting it back on. He would have unhooked hoses but I told him no need. He was at that point, even showed me the relieving the pressure before unhooking...
If you are still having trouble, perhaps you can find someone locally that does it well and have them show you, then you do it. I was not sure I would take mine off and on much but it is not that big of deal, makes using or not using it a non-issue. If it is off and I need it, I take a few minutes and put it back on..
Of course if you are running other front mounted implements, it may take a few minutes to remove the other and install the FEL, but most should be just as quick.