CST/BERGER LM30 Manual De Instrucciones página 10

Correcting Horizontal Rotation Error
1. Adjust the "Y" leveling screw until the laser beam rests midway between A and B (Fig. 8).
This will cause the "Y" vial bubble to shift from center. Clockwise rotation will raise the
beam; counterclockwise rotation will lower the beam.
2. Center the "Y" vial bubble by adjusting the vial leveling screws with a 1.5mm hex key.
3. Recheck the accuracy of horizontal rotation by repeating steps 1-5 in section"Checking
Horizontal Rotation Error". Readjust as necessary.Repeat the above checking and adjusting
procedures using the left and right sides of instrument, adjusting the "X" leveling screw and
"X" vial as necessary.
Checking Vertical Rotation Error
1. Set the instrument on its trivet (control button upward) on a floor approximately 100 feet
(30m) from the base of a wall. The right side of the instrument should face the wall. Level
the unit by adjusting the "Y" leveling screw.
2. Turn power on and place the unit in "STOP" mode.
3. Mark a control point "A" on the wall (Fig. 9). Turn the rotary head
manually until the laser beam hits point A on the wall.
4. Turn the rotary head to move the laser beam 30 feet (9m) upward on the wall and mark this
as point B.
5. Turn the instrument 180° and align the beam to point A, re-leveling if necessary (Fig. 10).
6. Turn the rotary head to move the laser beam to the same height as point B, and mark as
point C.
No adjustment is necessary if the difference between points B and C is 1⁄8 inch (3mm) or less.
Otherwise, adjust as follows.
Correcting Vertical Rotation Error
1. Adjust the "Y" leveling screw until the laser beam rests midway between points B and C.
This will cause the plumb vial bubble to shift from center.
2. Center the plumb vial bubble by adjusting the vial leveling screws with a 5/64"(2mm)
hex key.
3. Recheck the accuracy of vertical rotation by repeating steps 1-6 in
section"Checking Vertical Rotation Error". Readjust as necessary.
10 • LM30 Rotary Laser