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8 Care and maintenance
8.1 Cleaning and drying
1.
Blow dust off the lenses.
2.
Do not touch the glass 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.
Observe the temperature limits when storing your
equipment. This is particularly important in winter
/ summer if the equipment is kept inside a motor
vehicle (30°C to +60°C / -22°F to +144°F).
8.2 Storage
Remove the tool from its case if it has become wet.
The tool, its carrying case and accessories should be
cleaned and dried (at maximum 40°C / 104°F). 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.
8.3 Transport
Use the Hilti toolbox or packaging of equivalent quality
for transporting or shipping your equipment.
Never transport the tool in an unpacked state. Always
ensure that it is well packed.
8.4 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 Checking and adjusting the tool
In order to ensure compliance with technical specifica-
tions, the tool must be checked at regular intervals (at
least before each relevant major job).
NOTE
All tools are checked and calibrated before shipping.
Nevertheless, the tool must be rechecked and adjusted
if necessary before use.
8.5.1 Adjusting the circular bubble level 8
1.
Set up the tripod with the tool fitted as described in
sections 6.1 and 6.2.
2.
Rotate the POL 10/15 through 180° and check
whether the bubble in the circular bubble level is
still centered.
If the bubble is no longer centered, the bubble level
must be readjusted.
3.
Use an Allen key to turn the screws on the circular
bubble level until the error is corrected by half.
4.
Level the tool by turning the footscrews until the
bubble is centered.
5.
Repeat steps 2-3-4 several times until the bubble
remains centered even after rotating the POL 10/15.
NOTE Depending on the degree of misadjustment,
it may be necessary to repeat this procedure several
times.
8.5.2 Checking the target line 9
NOTE
Before checking the target line, make sure that the bubble
level has been adjusted in accordance with section 8.5.1.
1.
Select two points (A and B) at a distance of approx.
30 m (98 ft) from each other.
2.
Set up the tripod with the tool fitted as described in
sections 6.1 and 6.2.
3.
Check that the POL 10/15 is set up at the mid point
between points A and B.
4.
Stand the leveling staffs on the measuring points.
5.
Read the heights of points A and B from the lev-
eling staffs and calculate the difference in height
(ΔH₁ = A₁-B₁).
e.g. ΔH₁= 2.137 m – 1.845 m = 0.292 m
6.
Now set up the tripod with the POL 10/15 at a
distance of 1 m (3.3 ft) from point A, as described in
sections 6.1 and 6.2.
7.
Read the heights of points A and B from the lev-
eling staffs and calculate the difference in height
(ΔH₂ = A₂-B₂).
e.g. ΔH₂= 2.025 m – 1.755 m = 0.270 m
If ΔH₁ - ΔH₂ > 3 mm (0.12 in), then the target line
must be adjusted.
e.g. 0.292 m – 0.270 m = 0.022 m ΔH₁ - ΔH₂ > 3
mm (0.12 in)
Adjust the target line until B2 = A2 - ΔH₁.
e.g. nominal value B2 = 2.025 m - 0.292 m = 1.733
m
8.5.2.1 Adjusting the target line 10
1.
Remove the cover from the eyepiece.
2.
Aim the POL 10/15 at staff B and adjust the cross
hairs by turning the knob until the middle line indic-
ates the nominal value (e.g. B2 = 1.733 m).
3.
Repeat the checking and adjustment procedure until
ΔH₁ - ΔH₂ < 3 mm (0.12 in).
en
11
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