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Switching on and off
Short-Time Operation
Switching-on:
press the on/off switch twice within 2 seconds
Switching-off:
release the on/off switch
Permanent Operation
Switching-on:
press the on/off switch twice within 2 seconds and, keeping
it pressed, engage the lock-on button
Switching-off:
press the on/off switch and release it again
Attention!
Pressing the switch twice serves as restart protection.
!
The restarting protection feature prevents uncontrolled re-
starting of the machine after an interruption in the power
supply. To restart the power tool, place the
To restart the operation, switch the On/Off switch to the
Off position and start the machine again by pressing the
switch twice.
Overload Protection
To protect operator, machine and tool the concrete grinder is equipped with
an electronic overload protection:
To warn the user against an overload of the machine due to too high
grinding pressure, a LED is attached to the motor housing. It does not light
during idle run or at normal load. When the unit is overloaded the LED
lights red, in this case, the unit must be stress-relieved. In case of longer
non-observation of the red indication, the electronics will independently cut
the unit off. You can continue working after having stress-relieved and
switching OFF and ON the power tool again.
Changing the Diamond Grinding Wheel
Attention!
The grinding wheel might heat up enormously during operation. You
could burn your hands or get cut or ripped by the segments.
Therefore, always use protective gloves when changing the grinding
wheel.
Before any work on the tool, disconnect the plug from the mains!
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