Johnson 40-6670 User manual

©2010 Johnson Level & Tool - Rev. 1 1
Self-Leveling T o or Three-Beam Laser Dot
Model No. 40-6670 & 40-6675
Instruction Manual
Congratulations on your choice of this Self-Leveling Two or Three-Beam
Laser Dot. We suggest you read this instruction manual thoroughly
before using the instrument. Save this instruction manual for future use.
This tool emits two or three laser beams, which projects a series of
visible points on surfaces around the product 40-6675 (front, up and
down) and 40-6670 (up and down). Beam visibility depends upon
lighting conditions in the work area.
This is a Class IIIa laser tool and is manufactured to comply with CFR 21,
parts 1040 .10 and 1040 .11 as well as international safety rule IEC 285.
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2©2010 Johnson Level & Tool - Rev. 1
Table of Contents
1. it Contents
2. Features and Functions
3. Safety Instructions
4. Location/Content
of Warning Labels
5. Location of Parts/Components
6. Operating Instructions
7. Self-Check & Fine Calibration
8. Technical Specifications
9. Application Demonstrations
10. Care and Handling
11. Product Warranty
12. Warranty Registration
13. Accessories
1. Kit Contents
Description Qty.
Self-leveling Two or Three-Beam Laser Dot 1
“AA” Alkaline Batteries 3
Magnetic Target 1
Instruction Manual with Warranty Card 1
Soft Sided Pouch 1
2. Features and Functions
• Product simultaneously projects two or three laser beams 40-6675
(front, up and down) and 40-6670 (up and down).
• Magnetic dampening compensation system.
• Maintains level even when effected by vibration on the job site.
• Laser flashes and sounds audible alarm when product is
beyond leveling range.
• Low voltage indication with power indication lamp flashing.
• Pendulum locking mechanism helps protect units inner
mechanisms.
• Dust and rain resistant.
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©2010 Johnson Level & Tool - Rev. 1 3
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.
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.
• eep 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. If 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.
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4©2010 Johnson Level & Tool - Rev. 1
4. Location/Content of Warning Labels
CAUTION!
Class IIIa Laser Product
Max. Power Output: ≤5mW
Wavelength: 625-645nm
THIS T L EMITS LASER RADIATI N.
D N T STARE INT BEAM.
AV ID DIRECT EYE EXP SURE.
40-6670
40-6675
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©2010 Johnson Level & Tool - Rev. 1 5
5. Location of Part/Components
On/Off Indicator
Compensator lock
and On/Off Switch
Calibration port plug
Power LED
Battery door
Magnets
Battery
door/lock
Laser output
window
Laser output
window
(40-6675 only)
Laser output
window
1/4” screw thread hole
Calibration port
plug
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6©2010 Johnson Level & Tool - Rev. 1
6. perating Instructions
Alkaline Battery Installation
Note: Always check to be sure that the on/off switch is in the off
position before removing and replacing batteries.
1. As shown in figure, put 3”AA” alkaline batteries into the battery
compartment noting the polarity as shown in the battery
compartment. Snap the battery cover shut. Turn the on/off
switch to on. If the power LED is flashing, the battery is low.
IMP RTANT: It is the responsibility of the user to verify the
calibration of the instrument before each use.
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©2010 Johnson Level & Tool - Rev. 1 7
Using the Instrument
Power on/off
Turn the compensator lock on/off switch in the direction indicated by
the arrow.
Note: Product must be within ± 3° of level for self-leveling feature
to function properly. Greater than ± 3° will result in an alarm
condition (flashing laser and intermittent beeping sound).
utput of laser line:
To unlock and turn laser on. To lock and turn laser off.
40-6670 40-6675
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8©2010 Johnson Level & Tool - Rev. 1
7. Self-Check & Fine Calibration
Accuracy Self-Check - Plumb point accuracy self-check
1. As shown in figure 1, put the unit on the ground in the direction shown in
figure 1-1.
2. Power on the unit and mark the center of plumb-down as point “E” and
plumb-up point as “A”.
3. Turn the unit 90° (as shown in figure 1-2) and place the down beam on
the “E” mark. Mark the center of the plumb-up point as “B”.
4. Turn the unit 90°again (as shown in figure 1-3) and repeat step 3. Mark
the center of the plumb-up point as “C”.
5. Turn the unit 90°again (as shown in figure 1-4) and repeat step 3. Mark
the center of the plumb-up point as “D”.
6. Marks A-D should all be in the same spot. If not, the unit will need to be
recalibrated. Please see calibration adjustment information.
IMP RTANT: It is the responsibility of the user to verify the
calibration of the instrument before each use.
Figure 1
E
1-1 1-2
1-3 1-4
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©2010 Johnson Level & Tool - Rev. 1 9
Accuracy Self-Check - Horizontal Laser (40-6675 only)
1. Set the instrument on a level surface such as a flat head tripod
centered between two walls (marked 1 & 2) approximately 25 feet
apart. (See fig. 1).
2. Point the instrument directly at wall 1. Turn the laser on and mark the the
beam as point A.
3. Turn the instrument 180 degrees so that the laser is pointed directly at wall
2. Turn the laser and mark the beam as point B.
4. Move the instrument and the tripod so the laser is positioned approximately
2 feet away from wall 1 (see fig. 2). Level the tripod and position the
instrument on the tripod facing wall 1. Turn the laser on and mark the the
beam as point C.
5. Turn the laser off and rotate the laser 180 degrees so that it is
facing directly to wall 2.
6. Turn on the laser and mark the beam
as point D.
7. Measure the distance between
points A & C.
8. Measure the distance between
points B & D.
9. If the difference between points
A & C and points B & D are less
than 1/16”, your instrument is within
its tolerance.
10. If it is greater than 1/16”, your unit
will need to be recalibrated.
Wall 1 Wall 2
Fig 1
Fig 2
25 ft.
(7.6m)
25 ft.
(7.6m)
48 ft.
(14.6m)
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Calibration
1. Locate the front and side calibration port rubber plugs.
2. Carefully remove the rubber plugs.
3. Compensator must be unlocked and power on before making
calibration adjustments.
4. Use a 3mm Allen wrench.
5. For adjustment to the level/front beam, turn the Front A calibration screw
clockwise to raise the beam and counter-clockwise to lower the beam.
(40-6675 only)
6. For adjustment to the plumb beam, turn the Side B calibration screw
clockwise to move the plumb beam away from you and counter-clockwise
to move the beam toward you.
10 ©2010 Johnson Level & Tool - Rev. 1
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