Patent ID: 8438822

Claim:
An improved mower having a mower frame, a rotary cutting deck carried by the frame, a height of cut system for vertically moving the cutting deck upwardly and downwardly relative to the frame to adjust the height of cut of the grass, wherein the height of cut system comprises a plurality of pivotal suspension linkages connecting the cutting deck to the frame, a single pivotal control lever pivotally carried on the frame with pivoting of the control lever causing joint and corresponding pivoting motion in all the suspension linkages, and a height selection bracket fixed to the frame, wherein the height selection bracket has a plurality of spaced height adjustment openings which are operatively engaged by the pivotal control lever to set and maintain the control lever in only a series of distinctly different pivotal positions that are spaced apart from one another by discrete increments corresponding to a series of incrementally distinct and different heights of cut which are available to a user rather than an infinitely adjustable height of cut, the pivotal control lever being selectively operatively engaged to the bracket by a member that provides contact between the control lever and only one height adjustment opening in the bracket at a given time to select for use at the given time only one height of cut from among the series of incrementally distinct and different heights of cut which are available to the user, wherein the improvement relates to the height of cut adjustment system and comprises: a pivotal adjustment for pivoting the entire height selection bracket relative to the frame about a substantially horizontal pivot axis to pivotally shift as a group relative to the frame the plurality of spaced height adjustment openings on the height selection bracket in order to pivotally shift the entire series of distinctly different pivotal positions in which the control lever is maintained by the height selection bracket to allow the user to thereby choose a height of cut that is between the incrementally distinct heights of cut that had been available to the user before the height selection bracket was pivoted or to allow the user to thereby true up an actual height of cut being delivered by the cutting deck to whatever one of the incrementally different heights of cut had been selected for use by the user, wherein the pivotal adjustment includes a threaded adjustment member extending between the height selection bracket and the frame for pivoting the entire height selection bracket relative to the frame when the threaded adjustment member is selectively operated by a user.