A power lawnmower (10) for cutting grass blades (G) comprising, a mower deck (12), a motor (M) mounted on the mower deck, a cutting system (45) supported within the mower deck, a plurality of cutter belt sheaves (55, 55') in the cutting system, a cutter belt (60) in the cutting system interconnecting the plurality of cutter belt sheaves, a drive assembly (65) powered by the motor for moving the cutter belt relative to the cutter belt sheaves, and a plurality of cutter assemblies (75) mounted on the cutter belt for effecting incremental cutting of the grass blades upon movement of the cutter belt and the lawnmower.
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