Hilti PRA 22, Original Operating Instructions, Page: 10 / 183

ORIGINAL OPERATING INSTRUCTIONS
PRA 22 remote control / laser receiver
It is essential that the operating instructions
are read before the tool is operated for the
first time.
Always keep these operating instructions to-
gether with the tool.
Ensure that the operating instructions are
with the tool when it is given to other persons.
Contents Page
1 General information 7
2 Description 8
3 Technical data 9
4 Safety instructions 9
5 Before use 10
6 Operation 10
7 Care and maintenance 11
8 Disposal 11
9 Manufacturer’s warranty - tools 12
10 EC declaration of conformity (original) 12
1
These numbers refer to the corresponding illustra-
tions. The illustrations can be found on the fold-out cover
pages. Keep these pages open while studying the oper-
ating instructions.
In these operating instructions, the designation “the tool”
always refers to the PRA 22 laser receiver.
Parts, operating controls and indicators
1
PRA 22 laser receiver, front
@
On/off button
;
Tolerance setting button
=
Audible signal setting button
%
Audible signal aperture
&
Receiving area
(
Front display area (see detailed illustration)
)
Marking notch
+
Magnets
PRA 22 laser receiver, rear
2
§
Battery compartment cover
/
Internal thread for mounting the receiver
:
Display area, rear
PRA 22 laser receiver display
3
·
Indication of the selected tolerance
$
Indication of the position of the receiver relative to
the laser plane
£
Battery status indicator
|
Spirit level
PRA 77 laser receiver holder
4
¡
Receiver securing screw
Q
Measuring staff securing screw
1 General information
1.1 Safety notices and their meaning
DANGER
Draws attention to imminent danger that will lead to
serious bodily injury or fatality.
WARNING
Draws attention to a potentially dangerous situation that
could lead to serious personal injury or fatality.
CAUTION
Draws attention to a potentially dangerous situation that
could lead to slight personal injury or damage to the
equipment or other property.
NOTE
Draws attention to an instruction or other useful informa-
tion.
1.2 Explanation of the pictograms and other
information
Warning signs
General
warning
Warning:
explosive
substances
Warning:
caustic
substances
Warning:
electricity
en
7
Printed: 08.07.2013 | Doc-Nr: PUB / 5070245 / 000 / 01