The authors attempt to find functional relations between changing parameters of technical condition of the petrol chain saw engine and the magnitude of vibrations measured on the body and the handles. The presented investigations can contribute to learning the factors intensifying vibrations and will facilitate the development of the method for making a diagnosis on the chain saw technical condition with the use of vibroacoustic signals. In addition, the authors also try to show the influence of wood cutting, apart from the engine, on the magnitude of vibrations measured on the chain saw handles.

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