Before disconnecting any hose from a valve block, clean the area thoroughly. Even a microscopic speck of dirt can ruin a hydraulic pump.
Bucket Cylinder — Head End (Dumps bucket). Port 3 (Green): Lift Cylinder — Rod End (Lowers loader). Port 4 (Blue): Lift Cylinder — Head End (Raises loader). Common Routing & Maintenance Tips John Deere Hydraulic Hose Diagram