Drive by the motor, gasoline engine, diesel engine s power, first of all power equipment iding for about 2 minutes, check whether the internal has noise and after speed to reach the rated(to maintain the machines and the power), then feeding grass, power equipment tunning through the belt pulley drive shaft, then the drive sahft will be transferred power to roller and grass feeding device by gear at the other end and other components, transmission power to drive by into the studio by pressing grass roller, straw was chopped combined action with the fixed knife and the fast spinning moving blades, the cutting grass outside of the hay cutter through the outlet port.