Hilti PR 20, Operating Instructions Manual

Page: 8 / 52

5
5. Safety precautions
5. Safety precautions
5.1 Basic information concerning safety
In addition to the information relevant to
safety given in each of the sections of
these operating instructions, the following
points must be strictly observed at all
times.
5.2 Intended use
The tool is designed to be used for deter-
mining, transferring or checking alignment
in the horizontal and inclined planes, e.g.:
– Transferring datum and height marks
– Setting out inclines
Hilti offers various accessories that allow
optimum use to be made of the tool.
5.3 Misuse
– The tool and its accessories may present
hazards when used incorrectly by
untrained personnel or when used not
as directed.
– To avoid the risk of injury, use only origi-
nal Hilti accessories and additional
equipment.
– Modification of the tool is not
permissible.
– Observe the information printed in the
operating instructions concerning opera-
tion, care and maintenance.
– Do not render safety devices ineffective
and do not remove information and
warning notices.
– Keep laser tools out of reach of children.
– Have the tool repaired only at a
Hilti service centre. Failure to follow the
correct procedures when opening the
tool may cause emission of laser
radiation in excess of class 2.
– Take the surrounding conditions into
account. Do not use the tool where there
is a risk of fire or explosion.
5.4 Proper organization of the workplace
– Secure the area in which you are work-
ing. When setting up the tool, take care
to avoid directing the beam towards
yourself or other people.
– Avoid unfavorable body positions when
working on ladders. Make sure you have
a stable stance and stay in balance at all
times.
– Measurements taken through panes of
glass or other objects may be inaccurate.
– Ensure that the tool is set up on a steady
surface (not subject to vibration).
– Use the tool only within its specified lim-
its.
5.4.1 Electromagnetic compatibility
Although the tool complies with the strict
requirements of the relevant guidelines,
Hilti cannot entirely rule out the following
possibilities:
– The tool may cause interference to other
equipment, e.g. aircraft navigational
equipment.
– The tool may be subject to interference
caused by powerful radiation, which can
then lead to incorrect operation.
Check the readings for plausibility when
measuring in these conditions or if you
are unsure of the results.
Printed: 07.07.2013 | Doc-Nr: PUB / 5070169 / 000 / 00