Abstract: A mechanism controls the pivotal positioning of a hydraulic control lever on tractors wherein a gated plate is affixed to the control lever to be pivotally moveable therewith into selective engagement with a lockout pin projecting outwardly from a pivoted actuating lever. The gated plate has first and second gates for selectively receiving the lockout pin when in a first position to restrict the pivotal movement of said control lever in preselected manners. The gated plate further includes a stop engageable with the lockout pin when in a second position to prevent the control lever from being placed in a float position. A third selectable position of said actuating lever places the lockout pin out of engagement with said gated plate to allow an unrestricted freedom of movement of the control lever. The pivoted control lever and the pivoted actuating lever project outwardly through a control panel for manipulation thereof.