Oh I forgot, I have tight the main blades using only one side, WHY? because the other side came out completely with everything on it and I didnt want to mess around with it....Should I tight both sides at the same time? putting equal force? Yes I have some HULA when the blades are stoping......sorry to ask so many etupid questions but I have being figuring this myself . Manuals are not very specific with this type of issues
Thank you all
Pedro