Patent ID: 8408326
Filing Date: 2013-04-02
Classification: A01B,F15B

Abstract:
1. A hydraulic control apparatus for an agricultural implement, the implement having a stationary frame and a number of foldable frame sections pivotably coupled to the stationary frame, and a plurality of ground engaging tools mounted to the stationary frame and foldable frame sections, the apparatus comprising: a first hydraulic system that controls weight transfer to the ground engaging tools; a second hydraulic system that controls folding and unfolding of the foldable frame sections; and a single remote hydraulic control operative to control operation of the first hydraulic system and the second hydraulic system; wherein the first and the second hydraulic systems are configured such that an instruction from the single remote hydraulic control to unfold the foldable frame sections causes the first hydraulic system to prevent weight transfer to the ground engaging tools until the second hydraulic control system has completed unfolding of the foldable frame sections.