Johnson Level & Tool 40-6601 User manual

©2021 Johnson Level & Tool - Rev. 21
Self-Leveling Cross-Line Laser
Model Nos. 40-6601, 40-6603, 40-6605, 40-6609
Instruction Manual
Congratulations on your choice of this Self-Leveling Cross-Line Laser.
We suggest you read this instruction manual thoroughly before using
the tool and save this instruction manual for future use.
This is a Class laser tool and is manufactured to comply with CRF 21,
parts 1040.10 and 1040.11 as well as international safety rule EC 285.

2©2021 Johnson Level & Tool - Rev. 2
Table of Contents
1. Kit Contents
2. Features and Functions
3. Safety nstructions
4. Location/Content
of Warning Labels
5. Location of Parts/Components
6. Operating nstructions
7. Checking Accuracy
8. Application Examples
9. Troubleshooting Guide
10. Technical Specifications
11. Product Warranty
12. Warranty Registration
1. Kit Contents
Qty.
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2
Qty.
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Description for Model 40-6603 (Red)
Self-Leveling Cross-Line Laser
“AA” Alkaline Batteries
Description for Model 40-6601 (Green) & 40-6605 (Red)
Self-Leveling Cross-Line Laser
Magnetic Bracket
Tinted Glasses
Magnetic Target
“AA” Alkaline Batteries
Hard-Shell Carrying Case
Description for Model 40-6609 (Green)
Self-Leveling Cross-Line Laser
Magnetic Bracket
“AA” Alkaline Batteries
Soft-Sided Carrying Case
1
Qty.
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2
1

©2021 Johnson Level & Tool - Rev. 23
2. Features and Functions
• Simultaneously projects two laser beams both horizontally (level)
and vertically (plumb)
• Tilt mode can be used to plot lines at any angle
• Magnetically dampened compensator system stabilizes the
pendulum quickly and accurately, and stays level even with
nearby jobsite vibration.
• Status light alerts when the laser is beyond its leveling range
• Locking mechanism protects the pendulum during transportation
• 1/4″-20 tripod thread for use with most common tripods

4©2021 Johnson Level & Tool - Rev. 2
3. Safety Instructions
Please read and understand all of the following instructions, prior
to using this tool. Failure to do so, may void the warranty.
DANGER!
Class Laser Product
Max. Power Output: ≤1mW
Wavelength: 635nm (40-6603 & 40-6605)
THIS TOOL EMITS LASER RADIATION.
DO NOT STARE INTO BEAM.
AVOID DIRECT EYE EX OSURE.
DANGER!
Class Laser Product
Max. Power Output: ≤ 1mW
Wavelength: 520nm (40-6601 & 40-6609)
THIS TOOL EMITS LASER RADIATION.
DO NOT STARE INTO BEAM.
AVOID DIRECT EYE EX OSURE.
CAUTION
Maximum Power < 1mW
Wavelength 520nm
Class II laser product
LASER RADIATION-DO NOT STARE
INTO THE BEAM OR VIEW DIRECTLY
WITH OPTICAL INSTRUMENTS
This device complies with 21 CFR chapter 1,
Subchapter J, CFR1040.10 and 1040.11

©2021 Johnson Level & Tool - Rev. 25
ATTENTION IMPORTANT
• Read all instructions prior to operating this laser tool. Do not remove any labels from tool.
• Do not stare directly at the laser beam.
• Do not project the laser beam directly into the eyes of others.
• Do not set up laser tool at eye level or operate the tool near a reflective surface as
the laser beam could be projected into your eyes or into the eyes of others.
• Do not place the laser tool in a manner that may cause someone to unintentionally
look into the laser beam. Serious eye injury may result.
• Do not operate the tool in explosive environments, i.e. in the presence of gases or
flammable liquids.
• Keep the laser tool out of the reach of children and other untrained persons.
• Do not attempt to view the laser beam through optical tools such as telescopes as
serious eye injury may result.
• Always turn the laser tool off when not in use or left unattended for a period of time.
• Remove the batteries when storing the tool for an extended time (more than 3 months)
to avoid damage to the tool should the batteries deteriorate.
• Do not attempt to repair or disassemble the laser tool. f unqualified persons attempt
to repair this tool, warranty will be void.
• Use only original Johnson®parts and accessories purchased from your Johnson®
authorized dealer. Use of non-Johnson®parts and accessories will void warranty.

6©2021 Johnson Level & Tool - Rev. 2
4. Location/Content of Warning Labels
40-6603
40-6605
CAUTION
Maximum Power < 1mW
Wavelength 520nm
Class II laser product
LASER RADIATION-DO NOT STARE
INTO THE BEAM OR VIEW DIRECTLY
WITH OPTICAL INSTRUMENTS
This device complies with 21 CFR chapter 1,
Subchapter J, CFR1040.10 and 1040.11
40-6601
40-6609

©2021 Johnson Level & Tool - Rev. 27
5. Location of arts/Components
Locking
Compensator/
Power Switch
Battery Cover
Release Tab
Tilt Mode
Button
Status Light
Laser Output
Window
1/4″-20 Tripod Thread
(underneath, not shown)

8©2021 Johnson Level & Tool - Rev. 2
6. Operating Instructions
IM ORTANT: t is the responsibility of the user to ensure proper
maintenance of the Self-Leveling Cross-Line Laser. Conduct
periodic test measurements to ensure the tool is measuring
accurately and consistently. This is most important if the tool has
been exposed to extreme temperatures or moisture. Keep the
Self-Leveling Cross-Line Laser optic lens clean and inspect
for damage.
Battery Installation
To install batteries in the Self-Leveling
Cross-Line Laser:
1. Remove the battery cover, which is located at
the back of the tool, by pressing the battery
cover release tabs found on the left and right
sides of the tool and pulling the cover straight
out from the tool housing.
2. nsert 2 “AA” batteries into the battery compartment according
to the polarity illustrated inside the battery compartment.
3. Replace the battery cover. Press in the release tabs as you
insert them into the tool housing.
• Always check that the locking compensator/power switch is in the
locked position before removing and replacing batteries.
• Use only alkaline batteries.
• Remove the batteries when storing the tool for an extended time
(more than 3 months) to avoid damage to the tool should the
batteries deteriorate.
Note:

©2021 Johnson Level & Tool - Rev. 29
Using the roduct in Self-Leveling Mode
Slide the locking compensator up to the unlocked position to power
on the unit. The status light will illuminate, and the unit will emit
two laser beams.
Slide the locking compensator down to the unlocked position to
power off the unit.
Note: The tool must be within ±4° of level for the self-leveling feature
to function properly. f the tool is beyond its 4°
self-leveling range, the laser will not self-level, the laser will flash and
the status light will turn red. Once the tool has been adjusted to
within its 4° self-leveling range, the laser will self-level, the status
light will turn green and the laser light will stop flashing and remain
solid.
Using the roduct in Tilt (Manual Level) Mode
The tool can be used to project laser beams at any angle desired,
such as when projecting a line for stairs or a railing. This mode
produces the best results when the tool is mounted on a tripod.
With the locking compensator down in the locked position, press the
tilt mode button to power on the unit. The status light will illuminate
in red to indicate that the tool is not self-leveling, and the unit will
emit two laser beams. The lasers will be perpendicular to each other,
but will not self level.
Press the tilt mode button to power off the unit.

Tips from the ros
• ncreasing the beams’ visibility – When working in bright
conditions, such as when working near windows or outside walls,
the visibility of the laser beams can be maximized by following
these steps:
• Work towards the laser.
• Use a freestanding target (included with some models).
• Wear laser glasses (included with some models).
Note: Laser glasses enhance beam visibility but should never be
used to stare into the beam or be used as safety glasses. Eye
damage may result if these directions are not followed.
Care and Handling
• This laser is a precision tool that must be handled with care.
•Avoid exposing unit to shock vibrations and extreme temperatures.
• Remove the batteries when storing the unit for an extended time
(more than 3 months) to avoid damage to the unit should the
batteries deteriorate.
• Avoid getting the unit wet.
• Keep the laser unit dry and clean, especially the laser output
window. Remove any moisture or dirt with a soft, dry cloth.
• Do not use harsh chemicals, strong detergents or cleaning solvents
to clean the unit.
10 ©2021 Johnson Level & Tool - Rev. 2

©2021 Johnson Level & Tool - Rev. 211
7. Checking Accuracy
IM ORTANT: t is the responsibility of the user to verify
the calibration of the tool before each use.
lumb Accuracy Check
Plumb accuracy can be checked in two ways. The easier, though less
accurate method is to project the beam on a flat wall and use a
plumb bob to check the plumb of the beam.
The more accurate method to check the plumb line accuracy is to
follow these steps:
1. Place the tool on the floor in a fairly dark
room, approximately 10′ from a doorway.
2. Project the plumb beam through the
doorway.
3. Mark the plumb beam’s closet point to
the tool on the floor as Point 1.
4. Mark a spot 20′ away as Point 2.
5. Mark directly under the doorway as Point C.
6. Mark a spot directly above Point C, but on the doorway, as point D.
7. Move the tool to Point 2, and aim the plumb beam directly
through Point 1 and Point C.
8. Mark on the doorway Point E.
9. Measure the distance between Point D and Point E. f this
1
2
C
DE DE
C
E
C
2
1
1
1
1
distance is < 1/8" for a 10' high doorway, then the tool is
properly calibrated.

12 ©2021 Johnson Level & Tool - Rev. 2
Horizontal Line Transverse Accuracy Check
Transverse accuracy refers to the accuracy of the horizontal laser
beam projected along the wall and ensures the beam is level from
left to right.
1. Set the tool on a tripod and place approximately 15′ from a wall.
2. Unlock and power the unit on.
3. Face the laser line to the wall, and set the center as Point A.
4. Make a mark on the wall for Point A.
5. Make another mark on the wall 8′ from Point A and mark on the
wall as Point M.
6. Rotate the tool 90° and make a mark on the wall 15′ from
Point A. Label this mark as Point B.
7. Measure the distance ‘e’ from Point M to the laser line, as per the
figure. f ‘e’ < 3/16″, then the tool is properly calibrated.
8 ft (2.5m)
15 ft (5m)
8 ft (2.5m)

©2021 Johnson Level & Tool - Rev. 213
Horizontal itch Accuracy Check
Pitch accuracy refers to the accuracy of the laser between the tool
and the wall and ensures that the horizontal beam is level between
the tool and the wall.
1. Set up two survey-staffs OR use two walls, both a minimum of
15′ from each other.
2. Set the tool on a level tripod as close as possible to staff/wall A.
3. Power on all laser lines and move the laser until the cross dot
projects on the staff/wall A. Make a mark and label as A1.
4. Rotate the tool 180° and make the cross dot project on the
staff/wall B. Make a mark and label as B1.

14 ©2021 Johnson Level & Tool - Rev. 2
5. Move the tripod as close as possible to wall B, and make the
cross dot project on the staff/wall A. Make a mark and label
as A2.
6. Rotate the tool by 180° and move the cross dot to project
on the staff/wall B. Make a mark and label as B2.
7. Calculate the vertical distance (A1-A2) – (B1-B2) = e
8. f e < 3/16″ at 15′, the tool is properly calibrated.

©2021 Johnson Level & Tool - Rev. 215
8. Application Examples
Cross line lasers are extremely versatile devices that have many
useful applications designed to help you work more efficiently and
effectively, including:
• Plumb layout of studs
• Level layout of chair rails, wainscoting, baseboards, etc.
• nstalling photographs plumb or level
• Plumb layout of wallpaper, pinstriping, plumbing and electrical
conduit, etc.
• As a level reference for setting the slope of drainage piping
• n tilt mode to layout railings, photographs and other wall art at
any angle
• Setting tile or other flooring on walls and floors
• nstalling partitions, windows or doorways
• Fixing cabinetry
• As a measuring reference for checking spacing or the angle
of objects

16 ©2021 Johnson Level & Tool - Rev. 2
9. Troubleshooting Guide
This section is designed to help you diagnose and troubleshoot
common problems that prevent the tool from working properly.
Symptom
Will not turn on
Possible Cause
Batteries missing or
depleted
Polarity reversed
Solution
Change the batteries
Check battery polarity
Turns off after a short
time
Batteries depleted Change the batteries
Laser light is dim Batteries depleted Change the batteries
Laser light is blinking Laser is out of self-
leveling range
Position laser within 4°
of level so that it can
self-level
Laser will not self-level Laser is out of self-
leveling range
Compensator is locked
Position laser within 4°
of level so that it can
self-level
Unlock compensator to
allow the pendulum to
self-level; operating
with the compensator
locked is for tilt/manual
level mode at unique
angles

©2021 Johnson Level & Tool - Rev. 217
10. Technical Specifications
Laser Wavelength
Laser Wavelength
Laser Classification
635 nm (40-6603 & 40-6605)
520 nm (40-6601 & 40-6609)
Maximum Power Output ≤1mW
Self-Leveling Range
Laser Accuracy
Measuring Range
Power Supply
Battery Life*
Operating
Temperature Range
Storage
Temperature Range
Dimensions
Weight
Tripod Thread
P Rating
±4°
±3/16″/ 30 ′
0′ - 50′
2 “AA” alkaline batteries (included)
36 hours/20 hours (40-6603 & 40-6605)
16 hours/9 hours (40-6601 & 40-6609)
32°F - 104°F
0°F - 120°F
3 ″ x 3 ″ x 2.37 ″
0.53 lbs
1/4″ – 20
P 50
* Battery life reported with all beams enabled, as tested with lithium
AA/Alkaline AA.

18 ©2021 Johnson Level & Tool - Rev. 2
11. roduct Warranty
Johnson Level & Tool offers a two year limited warranty on each of its products.
You can obtain a copy of the limited warranty for a Johnson Level & Tool
product by contacting Johnson Level & Tool's Customer Service Department,
as provided below, or by visiting our web site at www.johnsonlevel.com. The
limited warranty for each product contains various limitations and exclusions.
Do not return this product to the store/retailer or place of purchase.
Non-warranty repairs and course calibration must be done by an authorized
Johnson®service center or Johnson Level & Tool's limited warranty, if
applicable, will be void and there will be NO WARRANTY. Contact one of our
service centers for all non-warranty repairs. A list of service centers can be
found on our web site at www.johnsonlevel.com or by calling our Customer
Service Department. Contact our Customer Service Department for Return
Material Authorization (RMA) for warranty repairs (manufacturing defects
only). Proof of purchase is required.
NOTE: The user is responsible for the proper use and care of the product.
t is the responsibility of the user to verify the calibration of the tool before
each use.
For further assistance, or if you experience problems with this product that are
not addressed in this instruction manual, please contact our Customer Service
Dept.
n the U.S., contact Johnson Level & Tool’s Customer Service Department at
[email protected] or 888-953-8357.
n Canada, contact Johnson Level & Tool’s Customer Service Department at
800-346-6682.

©2021Johnson Level & Tool - Rev. 219
12. Warranty Registration
Please register within 30 days of purchase. Registering ensures we
have your information on file for warranty service even if you lose your
receipt, and lets us contact you if there is ever a product recall. We will
never sell your information and only send you marketing information if
you opt-in.
To register, go to www.johnsonlevel.com/register.