Abstract— Agricultural mechanization is of extreme importance to high current agricultural demand. The increased production needs associated with the decrease in available area growth imply in the improvement and mechanization of techniques, being necessary to analyze all variables of the mechanization. As an example, exposure of workers to noise produced by agricultural tractors, which can be harmful to your health, to be occur a productive growth without affecting the minimum conditions imposed by Brazilian law. Excessive noise is a factor that affects the operators. This study aims at evaluating the levels and vibration and noise emitted by agricultural tractors with different powers, comparing the results with existing regulations in Brazil. The tractors studied were: Tractor A (engine power of 86 cv at 2200 rpm, manufactured in the year 2005, 4050,5 hours worked), Tractor B (engine power of 120 cv at 2200 rpm, manufactured in the year 2005, 3800,0 hours worked), Tractor C (engine power of 173 cv at 2200 rpm, manufactured in the year 1997, 7472, 9 hours worked), and Tractor D (engine power of 110 cv at 2200 rpm manufactured in the year 2011, 907 hours worked), crowded in Campus Hall Administrative USP Pirassununga.
Keywords— noise, vibration, level.
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