kjones95206
Member
I recently purchased a John Deere-Killefer 4 bottom, heavy tillage, 2-way, moldboard plow; model 4FD. The plow was made sometime in the early 1960's and I can't find much information about the plow. The problem is the plow won't roll-over completely. It raises but it just won't go over-center to completely roll-over. I don't know how the hydraulics are designed to accomplish the roll-over. There are two, what appear to be, hydraulic values at the front of the plow. The top valve controls the plow depth. The bottom valve feeds another valve that appears to be a part of the roll-over process. I'm not sure where to begin troubleshooting, the first hydraulic valve, the second, or the cylinder. Any information about this plow will be appreciated.