Vibration and operational performance of a brushcutter operating with three cutting discs
DOI:
https://doi.org/10.5902/1980509889906Keywords:
Brushcutter, Occupational health, Ergonomics, Exhibition, WorkersAbstract
Second Side motor brushcutters are widely used in urban cleaning activities. However, in rural areas they are used in the management of orchards and pastures, as well as in clearing the forest understory. In this sense, the present study aimed to identify and quantify the different levels of vibration spread to the hands and arms system, in the different orthogonal axes, during the operation of a motor brush cutter equipped with different cutting discs. The work consisted of clearing the understory vegetation using a side motor brushcutter, equipped with three cutting discs (D1; D2 and D3). Vibrations in hands and arms were measured in the three orthogonal axes, as recommended by ISO 5349-1 (2001). From the results obtained, it was found that the D3 disc was the one that presented the highest values of vibrations in hands and arms, with the highest vibrations being measured in the right-hand grip, and in the orthogonal Z direction. Therefore, the operation of Brushcutter requires the use of mandatory PPE such as anti-vibration gloves to mitigate harmful effects on the operator.
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