5
Flashing Red/Green: USB cable inserted without
battery installed & Damaged or Faulty Battery. If
the light indicator flashes red and green, check that
the battery is fully seated into the bay. Remove the
battery and reinsert. If the light continues to flash
red and green, the battery may be extremely hot or
cold, or wet. Allow the battery to cool down, warm
up, or dry out and then reinsert. If the problem
persists, contact a MILWAUKEE service facility.
NOTE:
When the laser level is charged during
USE, the indicator light will be Pulsing Red (Con-
tinuous). When the USB cable is disconnected,
the fuel gauge will display current battery life.
WARNING
To reduce the risk of injury or dam-
age, securely mount/attach the
laser before starting an operation. Injury/damage
may occur if the laser falls.
Mounting/Adjusting the Laser Level
The pivot bracket can be used to mount the laser
level in multiple ways:
• Use the embedded magnets to secure the laser level
to framing steel studs, steel beams, etc.
• Use the keyhole slot to hang the laser level on the
wall with a nail or screw
• Set the laser level on a flat surface.
• Position the laser and/or wall mount on a stable
surface.
• Use the 1/4" - 20 threaded insert to mount on a tripod
• Once the level is mounted, use the micro adjustment
knobs to fine tune the laser line
Attaching/Removing the Riser
(3522-20)
Use the riser to lift the laser level off the surface for
use of the bottom plumb point, such as clearance
over steel stud track. To attach the riser, slide the riser
onto the pivot bracket from the rear until it locks into
place. To remove the riser, hold the laser securely
and firmly push the riser from the front.
OPERATION
WARNING
To reduce the risk of injury or tem-
porary effects on vision, do not
look directly into the laser when it is on.
CAUTION
Use of controls or adjustments or
performance of procedures other
than those specified herein may result in hazard
-
ous radiation exposure.
NOTICE
Perform the Accuracy Field Check
procedure immediately upon unboxing
of each new Laser Level and before exposure to
jobsite conditions. See "Accuracy Field Check"
for information.
Turning On/Off
To turn on the laser and unlock the pendulum, rotate
the On/Off dial to the desired position. The remaining
battery life will be displayed.
WARNING!
Do not look
directly into laser apertures. Laser Mode Indicator
LED will display, and horizontal level line will imme
-
diately be emitted from aperture in the laser housing.
ON
Turns ON the laser and unlocks the pendu-
lum to enable self-leveling.
ON
Turns ON the laser but does not unlock the
pendulum (self leveling is disabled). The
laser lines will flash once every 8 seconds
to indicate that the projected lines are not
level or plumb.
NOTICE:
The ON mode disables self-
leveling and therefore is not intended for
projecting a level or plumb line.
OFF
Turns OFF the laser and locks the pen-
dulum. When not in use, turn off the tool
and store the Laser Level in the protective
carrying case.
Use the MODE button to cycle through the three
laser modes:
Horizontal Level Line
Vertical Plumb Line
Perpendicular Level & Plumb Lines **
The green laser mode indicators will display the
selected mode.
** Plumb points on Cat. No. 3522-20 only
Power Save
To put the tool into power save mode and extend
the run time by dimming the laser, press and hold
the MODE button for 3 seconds. Visual range is
decreased in power save mode. Pressing MODE
again for 3 seconds will deactivate power save if
battery level is above 3%.
Using the Laser Level
1. For best results, place the tool on a work surface
that is:
• sturdy
•
level (within 4 degrees of true level)
• free of vibrations
•
90° to the work area
2.
Turn on the tool.
3. The tool will self-level when placed on surfaces
within 4 degrees of true level.
4. The tool is ready once the emitted lines are con-
tinuous and no longer moving on the work surface.
