DeWalt XR DCLE34031 Original Instructions Manual page 17

ENglish
The Laser Beams Flash
The lasers are designed to self‑level up to an average of 4 °
in all directions If the laser is tilted so much that the internal
mechanism cannot level itself, the laser beams will flash
indicating that the tilt range has been exceeded. THE FLASHING
BEAMS CREATED BY THE LASER ARE NOT LEVEL OR PLUMB AND
SHOULD NOT BE USED FOR DETERMINING OR MARKING LEVEL
OR PLUMB. Try repositioning the laser on a more level surface.
If the laser battery pack has a low state of charge, the beams
will flash in a distinctive pattern of 3 quick flashes in 1 second,
followed by constant light output for 4 seconds. This flashing
pattern indicates that the battery pack should be replaced with a
fully charged battery pack.
The Laser Beams Will Not Stop Moving
The laser is a precision instrument. Therefore, if it is not
positioned on a stable (and motionless) surface, the laser will
continue to try to find level. If the beam will not stop moving, try
placing the laser on a more stable surface. Also, try to make sure
that the surface is relatively flat, so that the laser is stable.
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