Care And Maintenance; Cleaning And Drying; Hilti Calibration Service - Hilti PR 3 Manual De Instrucciones

8 Care and maintenance

8.1 Cleaning and drying

1. Blow dust off the laser exit window.
2. Do not touch the laser exit apertures and filter with
the fingers.
3. Use only a clean, soft cloth for cleaning. If necessary,
moisten the cloth slightly with pure alcohol or a little
water.
NOTE Do not use any other liquids as these may
damage the plastic components.
4. Check the temperature limit values when storing
your equipment, especially in winter and summer,
if you are keeping your equipment stored inside a
vehicle (‑25 °C to +60 °C (77°F to 140°F)).
8.2 Care of the Li-ion battery
Avoid ingress of moisture.
Charge the battery fully before using it for the first time.
In order to achieve maximum battery life, stop discharging
the battery as soon as a significant drop in performance
is noticed.
NOTE
If use of the tool continues, further battery discharge will
be stopped automatically before the battery cells suffer
damage. The tool switches itself off.
Charge the battery with the Hilti charger approved for use
with Li-ion batteries.
NOTE
- A conditioning charge (as is required with NiCd batter-
ies) is not necessary.
- Interruption of the charging procedure has no negative
effect on battery life.
- Charging can be started at any time with no negative
effect on battery life. There is no memory effect (as
with NiCd batteries).
- For best results, batteries should be stored fully
charged in a cool dry place. Storing the battery in
places subject to high ambient temperatures (e.g. at
a window) has an adverse effect on battery life and
increases the rate of self-discharge.
- If the battery no longer reaches full charge, it may
have lost capacity due to aging or overstressing. It
is possible to continue working with a battery in this
condition but it should be replaced in good time.
8.3 Storage
Unpack the tool if it has become wet. Clean and dry the
tool, its transport container and any accessories. Repack
the equipment only once it is completely dry.
Check the accuracy of the equipment before it is used
after a long period of storage or transportation.
8.4 Transport
Use the Hilti toolbox or packaging of equivalent quality
for transporting or shipping your equipment.
CAUTION
Always remove the battery from the tool before ship-
ping.

8.5 Hilti Calibration Service

We recommend that the tool is checked by the Hilti Cal-
ibration Service at regular intervals in order to verify its
reliability in accordance with standards and legal require-
ments.
Use can be made of the Hilti Calibration Service at any
time, but checking at least once a year is recommended.
The Calibration Service provides confirmation that the
tool is in conformance, on the day it is tested, with the
specifications given in the operating instructions.
The tool will be readjusted if deviations from the man-
ufacturer's specification are found. After checking and
adjustment, a calibration sticker applied to the tool and
a calibration certificate provide written verification that
the tool operates in accordance with the manufacturer's
specification.
Calibration certificates are always required by companies
certified according to ISO 900x.
Your local Hilti Center or representative will be pleased
to provide further information.
8.5.1 Checking accuracy
In order to ensure compliance with the technical spe-
cifications, the tool should be checked regularly (at least
before each major / relevant job).
8.5.2 Checking the main and transverse horizontal
axes 10
1. Set up the tripod approx. 20 m (66 ft) from a wall
and adjust the tripod head horizontally with a spirit
level.
2. Mount the tool on the tripod and use the aiming
notch to aim the tool at the wall.
3. Use the receiver to catch the laser beam and mark
a point (point 1) on the wall.
4. Pivot the tool clockwise through 90° about its own
axis. In doing so, ensure that the height of the tool
does not change.
5. Use the laser receiver to catch the laser beam and
mark a second point (point 2) on the wall.
6. Repeat steps 4 and 5 twice and mark points 3 and
4 on the wall with the aid of the laser receiver.
If the procedure has been carried out accurately, the
vertical distance between the two marked points 1
and 3 (main axis) or, points 2 and 4 (transverse axis),
should each be less than 3 mm (at 20 m) (0.12"
at 66 ft). If the deviation is greater than this, the
tool should be returned to a Hilti Service Center for
calibration.
8.5.3 Checking the vertical axis 11 12
1. Place the tool vertically on a floor base which is as
flat as possible approx. 20 m (66 ft) from a wall.
2. Adjust the position of the tool so that the grips are
parallel to the wall.
3. Switch the tool on and mark the reference point (R)
on the floor.
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