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Thank you for purchasing this Electronic Horizontal & Vertical
Self-Leveling Rotary Laser Level from Johnson. This tool features:
• Dual-slope
• Tilt indicator
• Scan mode
• Visual/audible out-of-level alarms
• Split beam for orthogonal layout
Quick Start Guide: Rotary Laser 40-6526 ∙ 40-6529 ∙ 40-6534 ∙ 99-028K ∙
40-6544
GETTING STARTED
1. Insert the supplied batteries. If rechargeables are used, ensure they
are fully charged. The laser can be operated either by the keypad or
the remote control. Note, after 30 minutes of inactivity the laser will
stop receiving remote control signals to save power. Power it on from
the keypad to start receiving remote signals again.
2. Attach the laser to a tripod or other stable surface.
3. Tap to power on the laser. The laser will self-level and rotate.
4. Tap to adjust the rotational speed.
5. Tap to turn o the laser after use.
6. The laser will flash and beep if out of its self-leveling range. Relocate
the laser to a more level surface or adjust the tripod legs if this occurs.
Pro Tip: For best results, use faster speeds with a detector, and slower
speeds when working indoors.
TILT INDICATOR
The tilt indicator disables the laser if it’s bumped while operating,
preventing you from taking inaccurate measurements.
To enable the tilt indicator:
1. With the laser powered, press .
2. The Tilt Mode LED will flash for 30 seconds. During this time, the
laser will automatically re-level and restart if bumped. This gives
you time to make any necessary final adjustments to the laser.
3. After 30 seconds, the Tilt Mode LED will remain on, indicating
Tilt Mode is active. Any disturbance to the laser will cause it to stop
spinning and flash to alert you.
4. Reset the laser after a tilt event by pressing , or exit tilt mode
be pressing .
SINGLE-AXIS SLOPE MODE
Single-axis slope mode angles the laser beam in either the X or
Y axis. If the laser is disturbed, it will re-level the non-sloped axis
while maintaining the slope on the sloped axis.
1. Press and hold for 3 seconds to enable single-slope mode.
2. The X-LED will be solid and the Y-LED blinking, indicating slope
can be set for the X axis. Press again to toggle axes.
3. Use the slope buttons or to adjust slope. Tap for small
adjustments; press and hold for larger adjustment.
Pro Tip: Set a specific slope using a grade rod and detector.
1. Set the detector a known distance from the laser. Find grade.
2. Raise/lower the detector the required amount, then adjust the
slope until the detector reads the beam.
3. For example, to slope 1/4” per 10’, set the detector 10’ from the
laser and find grade. Lower the detector 1/4” and slope the laser
beam until the detector locates the beam again.
Typical Applications Include:
• Excavation/Grading
• Concrete Flatwork/Form Layout
• Drywall Track Installation
• Tilt-Up Wall Installation
• Landscaping
• Ceiling & Wainscoting Installation
• Post & Pipe Installation
www.johnsonlevel.com/manuals
We want to get you up and running as quickly as possible - but this quick start guide is not a replacement for reading and understanding your operator’s
manual! For complete safety & operating instructions, refer to the operator’s manual included with your rotary laser, or scan the QR code.
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www.johnsonlevel.com/manuals
DUAL-AXIS SLOPE MODE
Dual-axis slope mode angles the laser beam in X and Y directions,
for example when sloping a concrete slab towards a single corner.
Dual-slope mode may be used in both horizontal and vertical
modes. Vertical slope mode can speed up the process of establishing reference lines.
When in dual-slope mode, the tilt indocator will not function.
Ensure the laser is not bumped while in dual-slope mode.
To enter dual-slope mode:
1. Tap on the laser or remote to start dual-slope mode.
2. The X axis indicator will blink. Use and to adjust the
slope in the X axis. Tap for minor adjustments, or press and hold
for larger adjustments.
3. Tap on the remote to toggle axes and set slope in the Y
direction. The Y-axis indicator will blink. Use and to adjust
the slope in the Y-axis.
4. If the laser exceeds its slope range, the rotation will stop, the
laser will flash, and the alarm will sound. If this happens, reduce
the slope in either axis until the laser resumes operation.
5. Exit dual slope mode by holding for 3 seconds. The laser
will self level and begin to spin horizontally or vertically.
Pro Tip: Establish a vertical reference line between two distant
points easily by using slope mode. Typically a two-person job,
slope mode simplifies this to a quick one-person setup.
1. With the laser vertical, position the laser over the near point,
and aim it close to the far point.
2. Stand at the far point with the remote, and adjust the slope
until the laser passes directly through the far point.
3. Use the detector to lay our your interim points like normal.
SCAN MODE
Scan mode can be used to simulate a laser line or to emit a laser
dot. Both modes increase the visibility of the laser when working
without a detector.
While the laser is rotating, press to change from a rotational
laser to a long laser line, short laser line, or dot.
Rotate the line or dot using or .
To exit scan mode, press . The laser will begin to rotate
normally.
USING A DETECTOR
A laser detector locates the beam when your eye can’t. This is
extremely useful outdoors, over long distances, or whenever your
eye can’t see the laser. Your laser may have included a detector,
or you can use any Johnson rotary laser detector appropriate for
your color laser.
Specific operation of each Johnson laser detector varies,
although all detectors work on a similar operating principle.
Consult your operator’s manual for specific details on your particular model, or use the guide below for a general detector
overview.
1. Mount the detector and power it on.
2. As the laser beam passes over the detecting window, the
detector will indicate on grade, above grade, or below grade
using lights, audio, and/or the LCD display.
3. Move the detector as indicated by the arrow on the display to
find grade.
4. The detector will alert you to on-grade with audio or visual
cues - typically a green light or a solid tone.
5. Respect the published range of your laser! Beyond the
published range, the detector may not provide an accurate
reading.
We want to get you up and running as quickly as possible - but this quick start guide is not a replacement for reading and understanding your operator’s
manual! For complete safety & operating instructions, refer to the operator’s manual included with your rotary laser, or scan the QR code.
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