Posted 2/14/2008 21:20 (#309895) Subject: Open Center and Closed Center Hydraulics?
SC Kansas
We are looking at upgrading to a John Deere 455 drill and they say that you need a closed center hydraulics system. I know that you can get a kit from John Deere that will let you use open center hydraulics. So, I was wondering what the difference was between the two? Thanks!