Here are some pictures of the hydraulic system that replaced the manual lever for raising/lowering the wheels on my JD aerator. I've also included pictures of my dethatcher hooked up to my Imatch via a heavy drawbar. You will notice that the Imatch allows me to raise/lower the dethatcher tines without changing the dethatcher's wheel position. Also, notice the Femco sun shade that I just installed today.
Bonus points for anyone who can find the flaw in my dethatcher. Clue: somebody at JD must have been severely hung-over the day they made it.