Scottville, 49454 Northwest Michigan | We have a White planter on our 765, which doesn't use vacuum air but instead uses air pressure for seeding. However, our system uses a hydraulic motor just like your John Deere's. And I doubt our hydraulic motors are that much different then your motors. My Cat dealer told me it was far better to run my return oil back to the "power beyond" instead of running it through the remote valve.
I would suggest you talk to your Cat dealer as well as your John Deere dealer to get their take on what you should do.
good luck, and I hope you find the solution to your problem, gordon |