pivotally attached to the forward end of a second connecting beam 63r the rearward end of the second connecting beam 63r is pivotally connected to the right intermediate subframe 22r which is in turn rigidly fixed to the main horizontal beam 21r of the right handed wheel rake assembly 20r a third connecting beam 65 is pivotally connected at its forward end to a roller assembly 66 which is free to slide along the length of the slide bar 61 as seen when comparing fig1 and 2 the rearward end of the third connecting beam 65 is pivotally connected to the forward end of the fourth connecting beam 63l the rearward end of the fourth connecting beam 63l is pivotally connected to the left intermediate subframe 22l which is in turn connected to the main horizontal beam 21l of the left handed wheel rake assembly 20l pivotally mounted to the top face of the second and fourth connecting beams 63r and 63l and top face of the intermediate subframe 22r and 22l are hydraulic cylinders 76 it should be understood that the second and fourth connecting beams 63r and 63l are identical elements and the intermediate subframes 22r and 22l and main horizontal beams 21r and 21l are mirror images of each other fig7 shows.