To reduce the risk of serious or fatal injury, persons with a pacemaker should consult their physician and the pacemaker manufacturer before operating this tool. This field may interfere with some pacemakers. The ignition system of the STIHL unit produces an electromagnetic field of a very low intensity. If any of the above symptoms appear, seek medical advice immediately. Therefore, continual and regular users should closely monitor the condition of their hands and fingers. Take frequent breaks.Īll the above-mentioned precautions do not guarantee that you will not sustain whitefinger disease or carpal tunnel syndrome. – Maintain a firm grip at all times, but do not squeeze the handles with constant, excessive pressure. A dull chain will increase cutting time, and pressing a dull chain through wood will increase the vibrations transmitted to your hands. A power tool with loose components or with damaged or worn AV buffers will tend to have higher vibration levels. Heated handles, which are available on some STIHL powerheads, are recommended for cold weather use. An AV system is recommended for those persons using power tools on a regular or sustained basis. – Most STIHL power tools are available with an anti-vibration (“AV”) system designed to reduce the transmission of vibrations created by the machine to the operator's hands. In order to reduce the risk of whitefinger disease and carpal tunnel syndrome, please note the following: These conditions reduce the hand's ability to feel and regulate temperature, produce numbness and burning sensations and may cause nerve and circulation damage and tissue necrosis.Īll factors which contribute to whitefinger disease are not known, but cold weather, smoking and diseases or physical conditions that affect blood vessels and blood transport, as well as high vibration levels and long periods of exposure to vibration are mentioned as factors in the development of whitefinger disease. Prolonged use of a power tool (or other machines) exposing the operator to vibrations may produce whitefinger disease (Raynaud's phenomenon) or carpal tunnel syndrome.
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March 2023
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