19
5) The distance between
a1
and
a2
, should be no more than
1 mm, otherwise send the laser level to a qualified technician
for repair.
3. Checking the Accuracy of the Vertical beams.
1) Hang an approximately 4 meter /13 feet plumb line on a wall.
2) After the plumb line has settled, mark point
a1
on the wall
behind the plumb line, near the plumb cone. (see figure 7).
3) Set the laser up on a tripor or on a flat surface in front of the
wall at a distance of approximately 2 meters/ 6.5 feet.
4) Unlock the pendulum safety lock (#11), to project the forward
horizontal and vertical cross beams towards the plumb line.
a1 x
Approximately 4m
Figure # 7
Figure # 7
