Johnson 40-6648 Instruction Manual
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Johnson 40-6648 Instruction Manual

Self-leveling cross and line laser
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1832i-English_Manuals 4/27/17 2:14 PM Page 1
Self-Leveling Cross and Line Laser
Model No. 40-6648
Instruction Manual
Congratulations on your choice of this Self-Leveling Cross and Line
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.
©2017 Johnson Level & Tool
1

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Summary of Contents for Johnson 40-6648

  • Page 1 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. ©2017 Johnson Level & Tool...

  • Page 2: Table Of Contents

    • Status light alerts you to when the tool is beyond its leveling range. • Locking mechanism protects the pendulum during transportation. • 1/4″-20 tripod thread for use with most common tripods. ©2017 Johnson Level & Tool...

  • Page 3: Safety Instructions

    • 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.

  • Page 4: Location/Content

    1832i-English_Manuals 4/27/17 2:14 PM Page 4 3. Location/Content of Warning Labels ©2017 Johnson Level & Tool...

  • Page 5: Location Of Parts/Components

    Tilt Mode Button Status Light Locking Compensator/ Power Switch Battery Cover Release Tab Crossline Laser Output Window Battery Cover Plumb Line Laser Output Window Battery Cover Release Tab 1/4″- 20 Tripod Thread (underneath, not shown) ©2017 Johnson Level & Tool...

  • Page 6: Operating Instructions

    • Use only alkaline batteries. • Remove the batteries when storing the instrument for an extended time (more than 3 months) to avoid damage to the tool should the batteries deteriorate. ©2017 Johnson Level & Tool...
  • Page 7 This mode produces the best results when the tool is mounted on a tripod. 1. With the locking compensator down in the locked position, tap the tilt mode button to power on the unit. The status light will ©2017 Johnson Level & Tool...
  • Page 8 • Wear laser glasses (sold separately). 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. ©2017 Johnson Level & Tool...
  • Page 9 • 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. ©2017 Johnson Level & Tool...

  • Page 10: Checking Accuracy

    8. Mark on the doorway Point E. 9. Measure the distance between Point D and Point E. If this distance does not exceed 1/8″ for a 10′ high doorway, then the tool is properly calibrated. ©2017 Johnson Level & Tool...
  • Page 11 Point A. Label this mark as Point B. 15 ft (5m) 8 ft (2.5m) 7. Measure the distance ‘e’ from Point M to the laser line, as per the figure. If ‘e’ < 3/16″, then the tool is properly calibrated. ©2017 Johnson Level & Tool...
  • Page 12 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 instrument 180° and make the cross dot project on the staff/wall B. Make a mark and label as B1. ©2017 Johnson Level & Tool...
  • Page 13 6. Rotate the instrument 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. If e < 3/16″ at 15′, the instrument is properly calibrated. ©2017 Johnson Level & Tool...

  • Page 14: Application Examples

    • Installing tile or other flooring on walls and floors • Installing partitions, windows or doorways • Fixing cabinetry • As a measuring reference for checking spacing or the angle of objects ©2017 Johnson Level & Tool...

  • Page 15: Troubleshooting Guide

    Position laser within 4° leveling range of level so that it can self-level Compensator is locked Unlock compensator to allow the pendulum to self-level; operating with the compensator locked is for tilt/manual level mode at unique angles ©2017 Johnson Level & Tool...

  • Page 16: Technical Specifications

    2 “AA” alkaline batteries (included) Battery Life 10 hours Operating Temperature Range 32°F - 104°F Storage Temperature Range 0°F - 120°F Dimensions 3″ x 3.5″ x 2.5″ Weight 0.725 lbs. Tripod Thread 1/4″ – 20 IP Rating IP 50 ©2017 Johnson Level & Tool...

  • Page 17: Product Warranty

    1832i-English_Manuals 4/27/17 2:14 PM Page 17 10. Product 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.

  • Page 18: Warranty Registration

    We will never sell your information and only send you marketing information if you opt-in. To register, go to www.johnsonlevel.com/register. ©2017 Johnson Level & Tool...

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