Checking Accuracy; Troubleshooting - Hilti PR 30-HVS Manual De Instrucciones

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.
In the event of deviation from the manufacturer's specific-
ation, the used tool will be readjusted. 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.
The Hilti representative in your local region will be pleased
to provide further information.

8.6 Checking accuracy

NOTE
In order to ensure compliance with the technical spe-
cifications, the tool should be checked regularly (at least
before each major / relevant job).
NOTE
After falling and suffering an impact it can be presumed
that the tool will continue to operate faultlessly, with
the accuracy it achieved prior to the impact, when the
following conditions are met:
The height of the fall did not exceed the height given in
the technical data.
The tool suffered no obvious mechanical damage from
the impact (e.g. breakage of the pentaprism).
The tool projects a rotating laser beam when in operation.
The tool operated faultlessly before the impact.
8.6.1 Checking the main and transverse horizontal
axes 16
1. Set up the tripod approx. 20 m from a wall and level
the tripod head with a spirit level.

9 Troubleshooting

Fault
The display shows this symbol
The display shows this symbol
2.
3.
4.
5.
6.
8.6.2 Checking the vertical axis 17 18
1.
2.
3.
4.
5.
6.
7.
8.
Possible cause
The PRA 30 has not been paired with
the PR 30-HVS.
Invalid entry; the command is not
possible.
Mount the tool on the tripod and use the aiming
notch to aim the tool at the wall.
Use the receiver to catch the laser beam and mark
a point (point 1) on the wall.
Pivot the tool clockwise through 90° about its own
axis. In doing so, ensure that the height of the tool
does not change.
Use the laser receiver to catch the laser beam and
mark a second point (point 2) on the wall.
Repeat steps 4 and 5 twice and mark points 3 and
4 on the wall with the aid of the laser receiver.
When this procedure is carried out carefully, the
vertical distance between the two marked points 1
and 3 (main axis) or, respectively, points 2 and 4
(transverse axis) should be less than 3 mm (at 20 m).
If the deviation is greater than this, the tool should
be returned to a Hilti Service Center for calibration.
Place the tool in the vertical position on a flat floor
approx. 20 m from a wall.
Adjust the position of the tool so that the grips are
parallel to the wall.
Switch the tool on and mark the reference point (R)
on the floor.
With the aid of the receiver, mark point (A) low on
the wall. Select medium speed.
With the aid of the receiver, mark point (B) at a
height of approx. 10 m.
Pivot the tool through 180° and realign it with the
reference point (R) on the floor and with point (A) at
the base of the wall.
With the aid of the receiver, mark point (C) at a
height of approx. 10 m.
Check the distance between points (B) and (C).
When the procedure has been carried out carefully,
the horizontal distance between the two points (B)
and (C) marked at a height of 10 meters should be
less than 1.5 mm (at 10 m).
NOTE If the deviation is greater: Please return the
tool to a Hilti Service Center for calibration.
Remedy
Pair the tools (see section 6.9)
Press a valid button.
en
39