Milwaukee L4 CLL Manual Original página 13

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CHECKING THE LEVEL ACCURACY OF THE HORIZONTAL BEAM (SIDE TO SIDE INCLINATION)
For this check, a free surface of approx. 5 x 5 meters is required.
1. Set up the laser on a tripod or on a solid surface between two walls A and B, approximately
5 meters apart.
2. Position the laser level approximately 2.5 meters from the center of the room.
3. Switch ON the self-leveling mode and press the button to project the horizontal line towards
wall A and B.
4. Mark the center of the laser line point a1 on wall A and point b1 on wall B.
A
a1
ENGLISH
5. Move the laser level approximately 5 meters away and turn the laser 180° towards wall A
and B.
6. Mark the center of the laser line point a2 on wall A and point b2 on wall B.
B
b1
7. Measure the distances:
Δa= |a2- a1|
Δb= |b1- b2|
8. The diff erence | Δa – Δb| should be no more than 2 mm.
A
a1
a2
B
b1 b1 b1
b b b2
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