Before Use; Charging The Battery; Led Indicators - Hilti PRE 3 Mode D'emploi

c) When the tool is brought into a warm environment
from very cold conditions, or vice-versa, allow it
to become acclimatized before use.
d) If mounting on an adapter, check that the tool is
screwed on securely.
e) Keep the laser exit aperture clean to avoid meas-
urement errors.
f) Although the tool is designed for the tough condi-
tions of jobsite use, as with other optical and elec-
tronic instruments (e.g. binoculars, spectacles,
cameras) it should be treated with care.
g) Although the tool is protected to prevent entry
of dampness, it should be wiped dry each time
before being put away in its transport container.
h) Check the tool before using it for important meas-
uring work.
i) Check the accuracy of the measurements several
times during use of the tool.
j) Use the mains adapter only for connecting to the
mains supply.
k) Check to ensure that the tool and mains adapter
do not present an obstacle that could lead to a
risk of tripping and personal injury.
l) Ensure that the workplace is well lit.
m) Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded.
n) Check the condition of the extension cord and
replace it if damage is found. Do not touch the
mains adapter if the extension cord or mains ad-
apter are damaged while working. Disconnect the
supply cord plug from the power outlet. Damaged
supply cords or extension cords present a risk of
electric shock.
o) Do not expose the supply cord to heat, oil or sharp
edges.
p) Never operate the mains adapter when it is dirty
or wet. Dust (especially dust from conductive ma-

6 Before use

NOTE
The tool may be powered only by the Hilti PRA 84 battery,
which is manufactured in accordance with IEC 60285.
6.1 Switching the tool on
Press the on / off button.
NOTE
After switching on, the tool begins to level itself automat-
ically.

6.2 LED indicators

Please refer to section 2 "Description".
6.3 Battery use and care
Store the battery in a cool, dry place. Never store the
battery where it is exposed to direct sunlight or sources
terials) or dampness adhering to the surface of
the mains adapter may, under unfavorable condi-
tions, lead to electric shock. Dirty or dusty tools
should thus be checked at a Hilti service center
at regular intervals, especially if used frequently
for working on conductive materials.
q) Avoid touching the contacts.
5.4.1 Battery tool use and care
a) Check that the tool is switched off before fitting
the battery. Use only the Hilti battery approved for
use with this tool.
b) Do not expose batteries to high temperatures or
fire. This presents a risk of explosion.
c) Do not disassemble, squash or incinerate batter-
ies and do not subject them to temperatures over
75°C. A risk of fire, explosion or injury through con-
tact with caustic substances may otherwise result.
d) Avoid ingress of moisture. Moisture may cause a
short circuit resulting in a risk of burning injury or fire.
e) Do not use batteries other than those approved
for use with the applicable tool or appliance. Use
of other batteries or use of the battery for purposes
for which it is not intended presents a risk of fire and
explosion.
Observe the special instructions applicable to the
f)
transport, storage and use of Li-ion batteries.
g) Avoid short-circuiting the battery.Before inserting
the battery in the tool, check that the terminals of
the battery and the tool are free from foreign objects.
Short-circuiting the battery terminals presents a risk
of fire, explosion or contact with caustic substances.
h) Do not charge or continue to use damaged bat-
teries (e.g. batteries with cracks, broken parts,
bent or pushed-in and/or pulled-out contacts).
Use only the specified battery to power the tool
i)
and use only the PRA 85 mains adapter or PRA 86
car charging connector for charging. Failure to
observe these points may result in damage to the
tool.
of heat, e.g. on heaters / radiators or behind a motor
vehicle windscreen. Batteries that have reached the end
of their life must be disposed of safely and correctly to
avoid environmental pollution.

6.4 Charging the battery

DANGER
Use only the Hilti batteries and Hilti mains adapters
listed under "Accessories".
en
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