SYSTEM / Hydraulic System Flow Combining Circuit Swing Motor 5-Spool Section 4-Spool Section Swing Boom Cylinder Arm 2 Arm 1 Arm Cylinder Boom 2 Boom 1 Bucket Cylinder Bucket Auxiliary Travel Motor (Right) Auxiliary Travel (right) Travel (left) Travel Motor (Left) Pump 1 Pump 2 T450-03-03-029 T2-4-17