Patent ID: 8776908

Claim:
A method of folding an implement frame, the frame supported on wheels for movement over the ground in a travel direction, the frame further having a main section with left and right sides relative to the travel direction, left and right first wings having inner ends pivotally attached to the main section at the left and right sides thereof, each first wing pivotal about a respective first wing axis and having outer ends, left and right second wings pivotally attached to the outer ends of the first wings, each second wing being pivotal about a respective second wing axis, and a hydraulic system including first wing cylinder for pivoting the first wing about the first wing axis and a second wing cylinder for pivoting the second wing about the second wing axis, the method comprising the steps of: actuating the first wing cylinders to apply a lifting force to the first wings to transfer weight from the first wings to the main section; while maintaining the lifting force on the first wings, actuating the second wing cylinders to pivot the second wings about the second wing axes to thereby fold the frame from a field use position to a folded transport position; and after the second wings have been pivoted to respective folded transport positions, further actuating the first wing cylinders to pivot the first wings to their folded transport positions.