Checking The Accuracy; Checking The Horizontal Line - Makita SK20GD Instruction Manual

CHECKING THE ACCURACY

■ Should the line laser exceed the permissible difference during the
checking, contact the store of purchase or a Makita authorized service
center.

1. Checking the horizontal line

B
1. Place the line laser near the center of a room with approx. 5 m walls.
2. Adjust the line laser so that the bubble in the level comes to the center of the red
circle.
3. Mark A at the position of the horizontal laser line on the wall.
4. Turn the line laser by 180°and mark B at the position of the horizontal laser line.
B'
B
5. Move the line laser to the position 1m away from the wall and adjust the bubble in
the level.
6. Mark B' at the position of the horizontal laser line.
7. Turn the line laser by 180°and mark A' at the position of the horizontal laser line.
The result is normal if the difference between A-A' and B-B' is within 1 mm.
8. Rotate the line laser horizontally and measure the maximum difference in the
horizontal laser line with A'.
The result is normal if the deviation at point A' is within 1 mm.
A
5m
Aʼ
A
A'
20 ENGLISH