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Ergonomic characteristics of agricultural tractors used in central region of Rio Grande do Sul State, Brazil

It is possible to reduce the probability of work accidents, diseases occurrence and increase the work efficiency using agricultural tractors with good ergonomic conditions. The objective of this research was to verify the presence of ergonomic items in used agricultural tractors and also to evaluate the influence of tractor age in these characteristics. 175 agricultural tractors belonging to 3 regions of Rio Grande do Sul State (Santa Maria, Restinga Seca and Cachoeira do Sul, Brazil), present in 114 farms randomly sampled, were evaluated. The results showed that only 3% of sampled specimens were equipped with a cab, and most part of the tractors did not have protection against the heat produced by tractor transmission and engine. With regard to ergonomics of commands, more than 70% of the tractors had gear levers positioned in its longitudinal central line, and only 8% were equipped with adjustable steering wheel. In the same way, more than 20% of sampled specimens did not have upholstered seat. Besides, the presence of the evaluated items were smaller for older tractors.

ergonomics; agricultural tractors; technical norms; workplace


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