Patent ID: 7793487

Claim:
A gang-type lawn mower system comprising: a. a wheel supported main frame; b. an engine mounted on the main frame; c. a pair of laterally adjustable mower decks with each mower deck being laterally adjustable with respect to the main frame and disposed on each side of the main frame; d. each mower deck including one or more mower blades; e. a belt drive operatively connected to the engine and extending from the main frame to each of the mower decks for transferring power from the engine to each of the mower decks so as to drive the blades associated with the decks; f. a connecting assembly that connects each mower deck with the main frame such that the mower deck pivots about at least three axes with respect to the main frame; g. a biasing assembly interconnected between the mainframe and each of the mower decks for: 1) biasing each of the mower decks laterally away from the main frame; and 2) maintaining the belt drive in tension; and h. wherein the biasing assembly is laterally adjustable for varying the position of each mower deck with respect to the mainframe such that the position of each mower deck is laterally adjustable with respect to the mainframe so as to vary the cutting width of the mower decks.