STERWINS ECS2-35.3 Mode D'emploi page 232

Maintenance
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If the replacement of the supply cord is necessary, this has to be done by
the manufacturer or his agent in order to avoid a safety hazard.
If the carbon brushes need to be replaced, have this done by a qualified
repair person (always replace the two brushes at the same time).
Residual risks
Even if you are operating this product in accordance with the provisions,
residual risks will always still remain. The following dangers can arise in
connection with the structure and design of this product:
1.Health issue due to vibration generated by the product when used
for an extended period or not managed appropriately and maintained
properly.
2.Injuries and damage to property to due to broken accessories or hidden
objects that are suddenly dashed.
3. Injuries and damage to property to due to thrown and fallen objects.
4. The use of this product for an extend period exposes its user to
vibration and may cause a "whitefinger"condition. In order to reduce
the risk, please wear gloves and keep your hands warm. If any of the
'whitefinger' symptoms appear, seek medical advice immediately.
'Whitefinger' symptoms include: numbness, loss of feeling, tingling,
pricking, pain, loss of strength, changes in skin colour or condition.
These symptoms normally appear in the fingers, hands or wrists. The
risk increases at low temperatures.
The maximum permissible system impedance is 0.339Ω at
the interface point of the user' s supply. The user should
determine in consultation with the supply authority, if necessary, that
the equipment is connected only to a supply of that impedance or less.
2. SAFETY INSTRUCTIONS
231
EN