EIBENSTOCK EUF 100, Оригинальное руководство пользователя

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Change Brush Ring
The brush ring must be changed after the brushes have been worn down to
5mm (excessive amounts of dust generated during grinding).
Remove the worn brush ring and replace with a new one.
Overload Protection
In order to protect the user, the motor and the tool, the EUF 100 is
equipped with an electronic and thermal overload protection.
Electronic: In case of overload caused by a grinding pressure
which is too high, the electronics react by decreasing the
speed of the machine. You can continue working when the
grinding pressure has been reduced.
If you don't relief the pressure on the machine or put
furthermore too much pressure on the tool it reacts by
witching OFF the machine.
After automatic switch-OFF of the machine you can
continue working after switching OFF and ON the power
tool again.
Thermal: In case of permanent overload, a thermal sensor protects
the motor against destruction. In this case, the tool
switches off automatically and can only be restarted after a
certain cooling period (approx. 2 minutes). Actuate the
ON/OFF switch! The cooling period depends on the
heating of the motor winding and the ambient temperature.