Johnson GreenBrite JLN300-GNCL Manual De Instrucciones página 19

2. Horizontal Line Accuracy
Check accuracy using two walls 20' apart.
1. Set laser next to Wall A. Mark
beam height on Wall A as point A1.
(Figure 19)
2. Rotate laser 180°. Mark beam height
on Wall B as point C. (Figure 20)
3. Set laser next to Wall B and adjust
beam to height C. (Figure 21)
4. Rotate laser 180°. Mark beam height
on Wall A as A2. (Figure 22)
5. Measure the vertical distance between
A1 and A2. If this distance is <1/16" at
20', your horizontal accuracy is within
specification.
NOTE: If your laser needs non-warranty service or calibration, return
it to a Johnson authorized service center for repair.
©2023 Johnson Level & Tool
Figure 19
Figure 20
Figure 21
Figure 22
19