A exposição ocupacional a vibrações de corpo inteiro em trator agrícola com subsolador

Abstract

Mechanical vibrations transmitted during subsoil operation may cause damage to the health of operators. Therefore, this work aimed to evaluate the occupational vibration acting on an agricultural tractor operator with attached subsoiler implement while performing the subsoiling operation in an area intended for eucalyptus planting. The technical procedures adopted were those established by Occupational Hygiene Standard 09: Assessment of Occupational Exposure to Fundacentro Full Body Vibrations. The instrument consisted of a Larson Davis model HVM 200 vibration analyzer and a Seat Pad triaxial accelerometer, which was attached to the farm tractor seat with tape. The tests were performed in two areas of terrain with varying amount of forest residue. The tests demonstrated acceleration values resulting from normalized exposure above the tolerance limit in both scenarios, indicating the need for immediate corrective action.