User's Manual
6. 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.
8.4.1.2 Checking the vertical axis
1. Place the tool in the vertical position on a flat floor
approx. 20 m 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.
4. With the aid of the receiver, mark point (A) at the
base of the wall (set the rotating laser to medium
speed).
5. With the aid of the receiver, mark point (B) at a
height of approx. 10 m.
6. 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.
7. With the aid of the receiver, mark point (C) at a
height of approx. 10 m.
NOTE 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). If
the deviation is greater: Please return the tool to
a Hilti Service Center for calibration.
9. Troubleshooting
Fault Possible cause Remedy
The display shows this symbol The button lock is active. Deactivate the button lock.
The display shows this symbol The PRA 35 has not been paired
with the PR 35.
Pair the tools (see section 6.9)
The display shows this symbol Invalid entry; the command is not
possible.
Press a valid button.
The display shows this symbol The command is valid but the tool
doesn’t react.
Switch on all tools and make
sure they are within wireless
communication range.
The display shows this symbol No communication between the
PR 35 and PRA 35.
Check to ensure that there are no
obstacles between the tools and
that the maximum wireless commu-
nication range is not exceeded. For
good wireless communication, the
PR 35 should be placed ≧ 10 cm
(4 in) above floor level.
en
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