Check the machine visually for any damage and defects at least once a day.
In the event of operational malfunctions the machine must be shut down immediately
and secured!
Secure the work area around the machine in public areas providing a safety
distance of at least 10 m (3.3 ft) from the machine.
Faults must be immediately rectified.
Carry out the switch on, and switch off operations in accordance with this user guide.
Before switching on the machine make sure that no-one can be endangered when the
machine starts up.
Never operate the machine when not in its upright position.
Do not switch off or remove the exhaust and or the ventilation devices whilst the ma-
chine is running!
All persons in the proximity of the machine must wear ear and eye protection as well as
safety shoes. In addition the machine operator must wear close-fitting protective cloth-
ing.
Only use extension cables that are sized and marked in accordance with the overall pow-
er consumption of the machine and the valid VDE guidelines.
See “2.6 Electrical safety” for further information.
Make sure there is no debris in the work area.
Check the work area for screws or other hard objects in the concrete. Don’t use the
machine if there are any foreign objects stuck into the surface. Such objects must be re-
moved prior to operation of machine
2.6 Electrical safety
The power source must be equipped fuses according to the table in “1.1 Electrical
specifications”. All cables used must be marked and rated according to the fuses
used.
Never connect the machine to a power source that does not provide protective earth!
Work on electrical equipment may only be undertaken by a skilled electrician or by
trained persons under the supervision of a skilled electrician as well as in accordance
with the local electrical engineering regulations.
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