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©2018 Johnson Level & Tool - Rev. 1

1

Self-Leveling 3 Dot Laser

Model Nos. 40-6641, 40-6643, 40-6646  

Instruction Manual

Congratulations on your choice of this Self-Leveling 3 Dot Laser. We 
suggest you read this instruction manual thoroughly before using the
instrument and save this instruction manual for future use.  

This is a Class II laser tool and is manufactured to comply with CRF 21,
parts 1040.10 and 1040.11 as well as international safety rule IEC 285. 

2891i-4English_Manuals  6/4/18  10:27 AM  Page 1

Summary of Contents for 40-6641

Page 1: ...is Self Leveling 3 Dot Laser We suggest you read this instruction manual thoroughly before using the instrument and save this instruction manual for future use This is a Class II laser tool and is man...

Page 2: ...ation Examples 9 Troubleshooting Guide 10 Technical Specifications 11 Product Warranty 12 Warranty Registration 1 Kit Contents Description for Model 40 6646 Qty Self Leveling 3 Dot Laser 1 AA Alkaline...

Page 3: ...ickly and accurately and stays level even with nearby vibration on the job site Visual out of level indicator alerts you to when the tool is beyond its leveling range Clearance for all common drywall...

Page 4: ...IATION DO NOT STARE INTO BEAM AVOID DIRECT EYE EXPOSURE DANGER Class II Laser Product Max Power Output 1mW Wavelength 520nm 40 6641 THIS TOOL EMITS LASER RADIATION DO NOT STARE INTO BEAM AVOID DIRECT...

Page 5: ...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 teles...

Page 6: ...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...

Page 7: ...Tool Rev 1 7 5 Location of Parts Components Locking Compensator Power Switch Battery Cover Release Status Light 1 4 20 Tripod Thread underneath not shown Laser Output Windows 2891i 4English_Manuals 6...

Page 8: ...d at the back of the tool by pressing the battery cover release found on the left and right side of the tool and pulling the cover back 2 Insert 2 AA batteries into the battery compart ment according...

Page 9: ...not self level the laser will flash and the status light will turn red Once the instrument has been adjusted to within its 5 self leveling range the laser will self level the status light will turn gr...

Page 10: ...or 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 Remo...

Page 11: ...Rotate the laser 90 degrees aligning the plumb down beam with Point O Mark the plumb up beam as Point B 4 Rotate another 90 degrees and align the plumb down over Point O Mark the plumb up as Point C 5...

Page 12: ...n the instrument on the tripod facing Wall 2 Turn the laser on and mark the beam as Point C Point C should be directly above or below Point B Turn the laser off and rotate the laser 180 degrees so tha...

Page 13: ...re every two feet using the floor to measure and transfer the point to the ceiling Setting a common level height such as marking locations for electrical boxes or switches or for hanging photographs e...

Page 14: ...ot 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 Lase...

Page 15: ...Measuring Range 0 100 Power Supply 2 AA alkaline batteries included Battery Life 36 hours 20 hours 40 6643 40 6646 18 hours 9 hours 40 6641 Operating Temperature Range 32 F 104 F Storage Temperature...

Page 16: ...t 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 Custo...

Page 17: ...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 market...

Page 18: ...18 2018 Johnson Level Tool Rev 1 2891i 4English_Manuals 6 4 18 10 28 AM Page 18...

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