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www.johnsonlevel.com/manuals
40-6676
40-6676 Self-Leveling 360° Laser with
Plumb Line Operator’s Manual
Johnson Level & Tool offers a three-year limited
warranty on this product. You can obtain a copy
of this warranty on our website. The limited
warranty contains various limitations and
exclusions.
Note:
The user is responsible for verifying proper
calibration of this instrument before each use.
If you experience problems with this product,
please contact us.
In the USA:
888-953-8357
In Canada:
800-346-6682
On the Web:
Please register your product within 30 days.
Registration ensures you can obtain warranty
service even if you lose your receipt, or so we
can contact you if there is ever a product recall.
We will never share your information!
Scan or click:
Laser
Class II, <1mW, 515nm
Accuracy
+/- 3/16" @ 50’
Operating Range
Up to 200’
Self-Leveling
Range
+/- 2.5°
Operating
Temperature
14°F to 113°F
Batteries
Li-Ion (included) or
4 AA (not included)
Battery Life
7 hours
Dimensions
4.25" x 2.25" x 4.8"
Weight (laser)
1lb 5oz (with batteries)
IP Rating
IP54 (rainproof)
Tool does not power on or remain on
• Check battery polarity.
• Replace batteries.
• Ensure battery door is tight.
• Turn pendulum lock off, then on.
• Ensure the tool is within its self-leveling
range.
Laser light is dim
• Ensure fresh batteries are being used or the
Li-Ion battery pack is fully charged.
• Ensure laser is within operating temperature
range.
• Ensure battery door is secure.
• Ensure laser is within self-leveling range.
Laser appears out of calibration
• Ensure pendulum is in the unlocked position.
• Has the laser been dropped or subjected to
impact? It may need calibration.
• Contact Johnson Level & Tool for calibration
service. The laser does not contain any user-
serviceable parts.
Note:
Do not disassemble; removal of any labels
will void your warranty.
• Read all operating instructions prior to use.
• Power on the laser by unlocking the pendulum
lock.
• Activate/disable the horizontal beam by pressing
. Activate/disable the vertical beam by
pressing
.
• To use a detector (not included), activate pulse
mode by pressing
. The PULSE LED will
illuminate.
• To operate the laser in manual mode (non self-
leveling), keep the pendulum locked and press
to enter manual mode, then use
and
to
power on the desired beams. The MANUAL LED
will blink to indicate manual mode is engaged.
• If the laser is in self-leveling mode and is not
able to self-level, both laser beams will flash and
the unit will beep to alert you that it is out of
level.
• If the battery is running low, the low battery
indicator LED will flash. A solid red battery
indicator indicates there is adequate battery life
remaining.
• Store the tool in its case with the pendulum
locked. For extended storage (>3 months),
remove the batteries to prevent corrosion.
• Set the laser on a tripod 10’ from all walls.
• Make a horizontal mark on the wall anywhere
along the 360° line to indicate the height of
the beam. Label this as Point A.
• Turn the laser 90° and mark Point B on the
same spot on the wall as Point A where the
beam intersects. This mark should either be
directly above, below or on top of Point A.
• Repeat Step 3 twice more, labeling the marks
as Point C and Point D, respectively.
• Measure the greatest vertical distance (H)
between any two of the points A, B, C & D.
• If ‘H’ < 1/16” for walls 10’ away from the tool,
the accuracy of the instrument is within its
specifications and no calibration is necessary. If
calibration is required, please contact Johnson
Level & Tool to obtain service at the address to
the bottom right.
• Place the laser on the floor 10’ from a doorway.
Project the plumb beam through the doorway.
• Mark the beam on the floor near the tool as
Point 1. Mark a spot 20’ away as Point 2.
• Mark the beam directly under the doorway as
Point C. Mark the beam on the doorway as D.
• Move the laser to Point 2, and aim the plumb
beam directly through Point 1 and Point C.
• Mark on the doorway Point E.
• Measure the distance
between Point D and
Point E.
• If this distance is less
than 1/16” for a 7’ high
doorway, then the tool
is properly calibrated.
REGISTRATION
TROUBLESHOOTING
CHECKING VERTICAL ACCURACY
CHECKING HORIZONTAL ACCURACY
BASIC OPERATION
WARRANTY
SPECIFICATIONS