Thank you much for this info. I really do like this mower BUT I refuse to battle these loose flopping rolling arms while trying to cut grass.... At every business carrying zero turns I look at this connection point and Husqvarna is the ONLY one using such poor construction... Will pass info on to dealer as it is still in warranty. I have more question for you. I thought these levers were supposed to return to neutral if turned loose while mowing, but will not. Do yours behave in the same manner? Thank you for this help.
I do not have a solution, but i do have an 2014 MZ52LE with same problem. It is impossible to tighten the control arms, have been fighting this for over a year. They flop and swivel around making it difficult to accurately control the machine..... I have tightened them till the bolt "squeaks". The dealer has it now, if it cannot be remedied I will seek a different brand mower...... Very poor construction!!!