Checking The Leveling Of The Laser Beam - Hilti PM 30-MG Manual De Instrucciones Original

5.9 Checking
5.9.1 Checking the plumb point
1. In a high room (for example in a stairwell with a height of 10 m), make a mark (a cross) on the floor.
2. Place the tool on an even, level surface.
3. Switch the tool on and unlock the pendulum.
4. Position the tool so that the lower plumb beam coincides with the center of the cross marked on the
floor.
5. Mark the top point of intersection of the laser lines on the ceiling.
6. Pivot the tool through 90°.
The lower intersection must remain on the center of the cross.
7. Mark the top point of intersection of the laser lines on the ceiling.
8. Repeat the procedure after pivoting the tool through 180° and 270°.
Form a circle on the ceiling from the 4 marked points. Measure the diameter of the circle D in
millimeters or inches and the height of the room in meters or feet.
9. Calculate the value R.
➥ The value R should be less than 3 mm (corre-
sponds to 3 mm at 10 m).
➥ The value R should be less than 1/8".
5.9.2

Checking the leveling of the laser beam

1. The distance between the walls must be at least 10 m.
2. Place the tool on an even, level surface approx. 20 cm from the wall (A) with the point of intersection of
the laser lines directed toward the wall (A).
3. Mark the point of intersection of the laser lines with a cross (1) on wall (A) and with a cross (2) on wall (B).
*2243556*
Printed: 08.05.2019 | Doc-Nr: PUB / 5492771 / 000 / 00
8
2243556 English 17