Hilti PMC 46 Bedienungsanleitung Seite 23

4. Place the tool on an even, level surface approx. 20
cm from the wall (B) with the laser beam directed
toward the wall (B).
5. Mark the point of intersection of the laser lines on
the wall (B) with a cross.
6. Pivot the tool through 180° and mark the point of
intersection of the laser lines on the opposite wall
(A) with a cross.
7. Measure the distances d1 between 1 and 4 and d2
between 2 and 3.
8. Mark the mid points of d1 and d2.
If the reference points 1 and 3 are located on dif-
ferent sides of the mid point, then subtract d2 from
d1.
If the reference points 1 and 3 are located on the
same side of the mid point, then add d1 and d2
together.
9. Divide the result by twice the length of the room
(room length x 2).
The maximum permissible error is 3 mm at 10 m.
7.3.3 Checking leveling of the lateral beams 10
Repeat the procedure and calculate the accuracy of each
of the two perpendicular beams as described at 7.3.2.
7.3.4 Checking perpendicularity (horizontal) 11 12 13
1. Position the tool with the lower plumb beam on the
center of a reference cross in the middle of a room
at a distance of approx. 5 meters from the walls so
that the center of the vertical laser line lies exactly
on the vertical line of the first target plate (a).
2. Attach a second target plate or sheet of paper (b)
to the wall at the half-way position (as shown in the
illustration). Mark the mid point (d1) of the right-hand
perpendicular beam.
3. Pivot the tool clockwise through exactly 90° (as seen
from above). The lower plumb beam must remain
in the center of the reference cross and the center
of the left-hand perpendicular beam must then lie
exactly on the vertical line of target plate (a).
4. Mark the center point (d2) of the right-hand perpen-
dicular laser beam on target plate (c).
5. Mark the mid point (d3) of the point of intersection
of the laser lines on target plate (b) or the sheet of
paper (from step 7).
NOTE The horizontal distance between d1 and d3
must be no greater than 3 mm at a working distance
of 5 m.
6. Pivot the tool clockwise through exactly 180° (as
seen from above). The lower plumb beam must
remain in the center of the reference cross and the
center of the right-hand perpendicular beam must
then lie exactly on the vertical line of target plate (a).
7. Then mark the center point (d2) of the left-hand
perpendicular laser beam on target plate (c).
NOTE The horizontal distance between d2 and d4
must be no greater than 3 mm at a working distance
of 5 m.
NOTE If d3 is to the right of d1, the sum of the
horizontal distances d1-d3 and d2-d4 must be no
greater than 3 mm at a working distance of 5m.
NOTE If d3 is to the left of d1, the difference between
the horizontal distances d1-d3 and d2-d4 must be
no greater than 3 mm at a working distance of 5m.
7.3.5 Checking the horizontal lines for
curvature 14 15
1. Place the tool at the edge of a room with a length of
at least 10 m.
NOTE The floor surface must be smooth and level.
2. Switch on all laser beams.
3. Set up a target plate at a distance of at least 10 m
from the tool, so that the point of intersection of the
laser lines lies in the center of the target plate (d0)
and the vertical line on the target plate runs exactly
through the middle of the vertical laser line.
4. Mark the mid point of the lower plumb beam on the
floor (reference cross).
5. Pivot the tool clockwise through 45° (as seen from
above). The lower plumb beam must remain on the
center of the reference cross.
6. Then mark the point (d1) on the target plate where
the horizontal laser line strikes the vertical line on
the target plate.
7. Pivot the tool counterclockwise through 90°. The
lower plumb beam must remain on the center of the
reference cross.
8. Then mark the point (d2) on the target plate where
the horizontal laser line strikes the vertical line on
the target plate.
9. Measure the following vertical distances: d0-d1, d0-
d2 and d1-d2.
NOTE The greatest measured vertical distance must
be no more than 5 mm at a working distance of 10
m.
7.3.6 Checking the vertical lines 16
1. Position the tool at a height of 2 meters.
2. Switch the tool on.
3. Position the first target plate T1 (vertical) at a dis-
tance of 2.5 meters from the tool at the same height
(2 meters), so that the vertical laser beam strikes the
plate. Mark this position.
en
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