Influence of Vibrations on Grain Harvesters Operator

The paper proposes an analysis of vibrations within many Romanian and foreign harvesters provided with tangential threshing unit, watching the influence which these ones have on the human operator's health. The determination of vibrations has been performed on the basis of accelerations measured at various frequencies, on the three directions: x, y and z (by means of the accelerometers mounted on the main working parts of the harvester), tracing the nomographs representing the limits up to which, these are not dangerous for the operator's health. Key words: vibrations, harvester, accelerations, nomogram, frequency.