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3.
In order to ensure that the tool's specified accuracy
can be maintained, make sure that it is set up on
a level surface or mounted sufficiently level on the
tripod or other accessory.
4.
Press the "On / off" button.
After the tool has leveled itself automatically, it pro-
jects a stationary laser beam vertically downwards.
This projected point is the reference point and is
used to position the tool.
5.
Press the rotation button in order to see the laser
beam in the entire plane of rotation.
6.
The vertically rotating beam can be moved to the left
or right by up to 5° by pressing the + and − buttons
on the remote control unit.
7.3 Working with slopes
NOTE
For optimum results, check that the PR 3 is correctly
aligned. The best way to do this is by selecting 2 points
on the left and right of the tool, each at 5 m (16 ft), but
parallel to the tool axis. Mark the height of the horizontal
plane and then, after setting the slope, mark the heights.
The tool is aligned optimally only when these heights are
identical at both points.
7.3.1 Setting the slope manually
1.
To activate the inclined plane function, press the on
/ off button on the tool for at least 8 seconds when
switching on.
2.
After 8 seconds, the inclined plane LED lights con-
stantly indicating that the inclined plane function is
activated.
3.
Release the button.
4.
The horizontal plane is then no longer monitored.
5.
After leveling itself, the laser beam will begin to
rotate.
6.
To incline the plane of rotation, press the + or −
button on the remote control unit. Alternatively, the
slope adapter (accessory) can also be used.
7.
To return to the standard operating modus, the tool
must be switched off and then restarted.
7.3.2 Setting the slope with the aid of the
PRA 76/78 slope adapter
NOTE
Check that the slope adapter is fitted correctly between
the tripod and the tool (please refer to the operating
instructions).
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.
7.4 Working with the PRA 2 remote control unit
The PRA 2 remote control unit makes working with the
rotating laser more convenient and is required in order to
make use of certain functions.
7.4.1 Selecting the speed of rotation (revolutions
per minute)
After switching on, the rotating laser always begins to
operate at a speed of 300 revolutions per minute. Working
at a slow speed of rotation can, however, make the laser
beam appear much brighter. A high speed of rotation
makes the laser beam appear more stable. The speed
of rotation can be changed from 300/min to 600/min to
1500/min by pressing the speed control button several
times.
7.4.2 Line function
The area covered by the laser beam can be reduced to
a line by pressing the line function button on the remote
control unit. The laser beam then appears considerably
brighter. The length of the line can be adjusted by press-
ing the line function button several times. The length of
the line depends on the distance between the laser and
the wall or the working surface. The laser line can be
shifted to the left or the right, as desired, by pressing the
direction buttons (right/left).
7.5 Deactivating the shock warning system
1.
Press the on / off button on the tool for at least 4
seconds when switching on.
2.
The shock warning LED lights constantly, indicating
that the function has been deactivated.
3.
Release the on / off button.
4.
To return to the standard operating modus, the tool
must be switched off and then restarted.
7.6 Working with the laser receiver (accessory)
The laser receiver can be used at distances of up to 150
m (492 ft) or when working in unfavorable light. The laser
beam is indicated by visual and audible signals.
NOTE
For further information, please refer to the operating
instructions for the laser receiver.
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.
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