5. Safety rules
5.1 Basic information concerning safety
The tool is designed to be used for determining,
transferring or checking alignment in the horizontal
and inclined planes.
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 Misuse
a) The tool and its ancillary equipment may present
hazards when used incorrectly by untrained per-
sonnel or when used not as directed.
b) To avoid the risk of injury, use only genuine Hilti
accessories and additional equipment.
c) Modification of the tool is not permissible.
d) Observe the information printed in the operat-
ing instructions concerning operation, care and
maintenance.
e) Do not render safety devices ineffective and do
not remove information and warning notices.
f) Keep laser tools out of reach of children.
g) Failure to follow the correct procedures when
opening the tool may cause emission of laser
radiation in excess of class 3. Have the tool
repaired only at a Hilti service center.
h) Take the influences of the surrounding area into
account. Do not use the tool where there is a risk
of fire or explosion.
i) (Statement in accordance with FCC §15.21):
Changes or modifications not expressly approved
by the manufacturer can void the user’s authority
to operate the equipment.
5.3 Proper organization of the work area
a) Secure the area in which you are working and
take care to avoid directing the beam towards
other persons or towards yourself when setting
up the tool.
b) Measurements taken through panes of glass or
other objects may be inaccurate.
c) Ensure that the tool is set up on a steady, level
surface (not subject to vibration).
d) Use the tool only within its specified limits.
5.3.1 Electromagnetic compatibility
Although the tool complies with the strict require-
ments of the applicable directives, Hilti cannot en-
tirely rule out the possibility of the tool being subject
to interference caused by powerful electromagnetic
radiation, leading to incorrect operation. Check the
accuracy of the tool by taking measurements by other
means when working under such conditions or if you
are unsure. Likewise, Hilti cannot rule out the pos-
sibility of interference with other devices (e.g. aircraft
navigation equipment).
5.3.2 Laser classification for tools of the classes
3R and IIIa
a) The tool conforms with laser class 3R in ac-
cordance with IEC 825ತ1:2003 and class IIIa in
accordance with 21 CFR § 1040(FDA).
b) Tools of the laser class 3R and class IIIa should
be operated by trained personnel only.
c) The area in which the tool is in use must be marked
with laser warning signs.
d) The plane of the laser beam should be well above
or well below eye level.
e) Precautions must be taken to ensure that the
laser beam does not unintentionally strike highly
reflective surfaces.
f) Precautions must be taken to ensure that persons
do not stare directly into the beam.
g) The laser beam must not be allowed to project
beyond the controlled area.
h) When not in use, laser tools should be stored in
a place to which unauthorized persons have no
access.
5.4 General safety rules
a) Check the condition of the tool before use. If the
tool is found to be damaged, have it repaired at
a Hilti service center.
b) The user must check the accuracy of the tool
after it has been dropped or subjected to other
mechanical stresses.
c) When the tool is brought into a warm environ-
ment from very cold conditions, or vice-versa,
allow it to become acclimatized before use.
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Printed: 07.07.2013 | Doc-Nr: PUB / 5070148 / 000 / 00