Echo SRM-4300, Operator'S Manual

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9 SRM-4300
Vibration and cold
It is believed that a condition called Raynaud’s Phenomenon which affects the fi ngers
of certain individuals may be brought about by exposure to vibration and cold.
Exposure to vibration and cold may cause tingling and burning, followed by loss of
colour and numbness in the fi ngers.
The following precautions are strongly recommended because the minimum exposure
which might trigger the ailment is unknown.
• Keep your body warm, especially the head and neck, feet and ankles, and hands
and wrists.
• Maintain good blood circulation by performing vigorous arm exercises during
frequent work breaks, and also by not smoking.
• Limit the number of hours of operation.
Try to fi ll each day with jobs where operating the trimmer or other hand-held power
equipment is not required.
• If you experience discomfort redness and swelling of the fi ngers, followed by
whitening and loss of feeling, consult your physician before exposing yourself further
to cold and vibration.
Repetitive stress injuries
It is believed that over-using the muscles and tendons of the fi ngers, hands, arms and
shoulders may cause soreness, swelling, numbness, weakness and extreme pain to
the areas just mentioned.
Certain repetitive hand activities may put you at a high risk for developing a repetitive
stress injury (RSI).
To reduce the risk of RSI, do the following:
• Avoid using your wrist in a bent, extended or twisted position.
• Take periodic breaks to minimize repetition and rest your hands.
Reduce the speed and force in which you do the repetitive movement.
• Do exercises to strengthen hand and arm muscles.
• See a doctor if you feel tingling, numbness or pain in your fi ngers, hands, wrists or
arms.
The sooner RSI is diagnosed, the more likely permanent nerve and muscle damage
can be prevented.
Painful or numb fi ngers?
See your doctor
immediatelty!