At a quick glance it's possible you have the seat 'gears' upside down (the arms with the teeth intermeshing) Also, you'll find the new rubber torsion 'springs' very stiff at first (my experience) and the adjustment will be set to the extreme minimum for a while. Sorry, looks like you will have to disassemble the seat again but maybe wait for another opinion as to if the 'gears' are right or wrong before you do.  Good luck!