DeWalt DW073 Instruction Manual page 18

DW073/611118-01 5/13/02 4:37 PM
2. If the two bubbles are not in about the same position in their
vials, (both about centered) have your Rotary Laser
calibrated at a D WALT service center.
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• Turn the unit on so that the lasers are on and rotating.
• Go to surface #1 and mark the center of the beam. If it is difficult to
see the beam, use your Laser Enhancement Glasses, Target Card
or optional DW0732 Digital Laser Detector.
• Go to surface #2 and mark the center of the beam.
• Loosen the screw holding the Laser to the tripod, but do not remove
the Laser.
• Rotate the Laser 180˚ (Fig. BB)
• Level the Laser again, following the procedure in the "Horizontal
Leveling" section of this manual.
• Turn the unit on if it is not already on, so the lasers are on and
rotating.
• Go to surface #1 and mark the center of the beam.
• Go to surface #2 and mark the center of the beam.
• Measure the difference between the marks on surface #1.
• Measure the difference between the marks on surface #2.
• The difference between the marks on surface #1 must equal the
difference between the marks on surface #2. If these are not equal,
there was user set up or marking error.
• If the difference between the marks on surface #1 is 1/4" or less, the
Laser is properly calibrated.
• If the difference between the marks on surface #1 is more than 1/4",
have your Rotary Laser calibrated at a D
HORIZONTAL CHECKING FOR SIDE-TO-SIDE TILT ERROR
• Set up tripod midway between 2 vertical surfaces 100' from each
other.
• Mount your Rotary Laser on a tripod so that it is aimed side-to-side
toward the vertical surfaces.
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WALT service center.
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• Level the Laser, following the procedure in the "Horizontal Leveling"
section of this manual.
• Turn the unit on so that the lasers are on and rotating.
• Go to surface #1 and mark the center of the beam. If is difficult to
see the beam use one of the aids mentioned earlier.
• Go to surface #2 and mark the center of the beam.
• Loosen the screw holding the Laser to the tripod but do not remove
the Laser.
• Rotate the Laser 180˚.
• Level the Laser again, following the procedure in the "Horizontal
Leveling" section.
• Turn the unit on if not already on, so that the lasers are on and
rotating.
• Go to surface #1 and mark the center of the beam.
• Go to surface #2 and mark the center of the beam.
• The difference between the marks on surface #1 must equal the
difference between the marks on surface #2. If these are not equal,
there was user set up or marking error.
• If the difference between the marks on surface #1 is 1/4" or less, the
Laser is properly calibrated.
• If the difference between the marks on surface #1 is more than 1/4",
have your Rotary Laser calibrated at a D
CONE ERROR CHECK
• Your D WALT Rotary Laser contains 2 laser diode assemblies. It is
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highly unlikely that both lasers would have shifted by identical
amounts. The easiest way to test for possible "cone error" is to
compare the two laser beams.
• Level the laser, following instructions in the "Horizontal Leveling"
section of this manual.
• Quick Check:
• Turn the unit on so that the lasers are on and rotating.
WALT service center.
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