The Hawkline Category 1 Grader Blade has tilt, angle and offset capabilities. The lift arms on the tractor can be used for additional adjustments. For ditch digging, the horizontal angle should be at its sharpest. This is obtained by removing the shift pin and turning the moldboard so that the last hole in the circle plate is in line with the shift pin hole, then replace the shift pin. It is suggested that the blade be set in an offset position and then use the shorter blade side to be the cutting side.
The vertical angle of the blade (tilt) is adjusted by means of the adjustment turnbuckles on the tractors 3-Point hitch. For the sharpest angle, lengthen the center link on the tractor as far as possible. Also, lower the adjustable leveling turnbuckle as far as possible.