Shaftsbury, Vermont (SW VT) | As always, nice picture, Ed. Those couplers are very similar to, but not the same, as the ones Deere uses on their late model tractors. I just worked on a 9220. I don't remember whose name was on the new valve, but it was one of the hydraulic manufacturers; I'll post again Monday after I look at it in the shop. There isn't moch service that can be done on them except in the pilot solenoid, and the coupler itself. They are sensitive to warping of the valve body when asembling the stack, too. That's why I changed the valve. Sometimes it would shuttle freely, and other times it would only move partway in one direction. Special procedure in the instructions for assembly. Oliver Durand |
Hydraulic couplers
