2891i-4English_Manuals 6/4/18 10:27 AM Page 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. ©2018 Johnson Level & Tool - Rev.
891i-4English_Manuals 6/4/18 10:27 AM Page 2 Table of Contents 1. Kit Contents 2. Features and Functions 3. Safety Instructions 4. Location/Content of Warning Labels 5. Location of Parts/Components 6. Operating Instructions 7. 8. 9. 10. 11. 12. Checking Accuracy Application Examples Troubleshooting Guide Technical Specifications Product Warranty Warranty Registration 1. Kit Contents 2 Description for Model 40-6646 Self-Leveling 3 Dot Laser “AA” Alkaline Batteries Qty.
2891i-4English_Manuals 6/4/18 10:27 AM Page 3 2. Features and Functions • Simultaneously projects three laser beams (front, up and down) to check plumb and level. • Magnetically dampening compensation system stabilizes pendulum quickly 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 track materials and 2x dimensional lumber.
2891i-4English_Manuals 6/4/18 10:27 AM Page 4 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 II Laser Product Max. Power Output: ≤ 1mW Wavelength: 635nm (40-6643 & 40-6646) THIS TOOL EMITS LASER RADIATION. 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.
2891i-4English_Manuals 6/4/18 10:27 AM Page 5 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.
2891i-4English_Manuals 6/4/18 10:27 AM Page 6 4. Location/Content of Warning Labels 40-6643 40-6646 CAUTION 40-6641 LASER RADIATION-DO NOT STARE INTO THE BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS Maximum Power < 1mW Wavelength 520nm Class II laser product This device complies with 21 CFR chapter 1, Subchapter J, CFR1040.10 and 1040.11 6 ©2018 Johnson Level & Tool - Rev.
2891i-4English_Manuals 6/4/18 10:27 AM Page 7 5. Location of Parts/Components Status Light Battery Cover Release Laser Output Windows Locking Compensator/ Power Switch 1/4″-20 Tripod Thread (underneath, not shown) ©2018 Johnson Level & Tool - Rev.
2891i-4English_Manuals 6/4/18 10:28 AM Page 8 6. Operating Instructions IMPORTANT: It is the responsibility of the user to ensure proper maintenance of the Self-Leveling 3 Dot Laser. Conduct periodic test measurements to ensure the instrument is measuring accurately and consistently. This is most important if the instrument has been exposed to extreme temperatures or moisture. Keep the Self-Leveling 3 Dot Laser optic lens clean and inspect for damage.
2891i-4English_Manuals 6/4/18 10:28 AM Page 9 Powering the Laser On/Off Slide the locking compensator up to power on the unit and unlock the compensator so that the laser can self-level. The status light will illuminate, and the unit will emit three laser beams (up, front and down). Slide the locking compensator down to power off the unit and engage the pendulum lock. The laser can be safely transported when the pendulum is locked.
2891i-4English_Manuals 6/4/18 10:28 AM Page 10 Care and Handling • This Self-Leveling 3 Dot 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.
2891i-4English_Manuals 6/4/18 10:28 AM Page 11 7. Checking Accuracy IMPORTANT: It is the responsibility of the user to verify the calibration of the instrument before each use. Checking Plumb Accuracy 1. Place the laser on a flat surface in as tall of a room as possible. 20′ or higher is ideal. In shorter rooms, a mirror can also be used on the ceiling to reflect the beam back to the ground to give a longer effective distance. 2. Turn on the laser. Mark the center of the plumb down beam as Point O.
2891i-4English_Manuals 6/4/18 10:28 AM Page 12 Checking Level Accuracy • Set the instrument on a level surface such as a tripod, located between two walls (labeled Wall 1 and Wall 2), located a minimum of 25′ apart (see Fig 1). The laser should be as close as possible to Wall 1. Wall 2 Wall 1 • Point the instrument at Wall 1. Turn the laser Fig 1 on, and mark the beam as Point A. Rotate the instrument 180 degrees so the laser is pointed at Wall 2. Mark the beam on Wall 2 as Point B.
2891i-4English_Manuals 6/4/18 10:28 AM Page 13 8. Application Examples Dot lasers are extremely versatile devices. While the most common application of a Self-Leveling 3 Dot Laser is for plumb layout of walls and setting drywall track, Self-Leveling 3 Dot Lasers have many useful applications designed to help you work more efficiently and effectively, including: • Plumbing walls • Setting drywall top and bottom track • Transferring reference points from floor to ceiling (e.g.
2891i-4English_Manuals 6/4/18 10:28 AM Page 14 9. Troubleshooting Guide This section is designed to help you diagnose and troubleshoot common problems that prevent the Self-Leveling Cross-Line Laser from working properly.
2891i-4English_Manuals 6/4/18 10:28 AM Page 15 10.
2891i-4English_Manuals 6/4/18 10:28 AM Page 16 11. 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. The limited warranty for each product contains various limitations and exclusions.
2891i-4English_Manuals 6/4/18 10:28 AM Page 17 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. ©2018 Johnson Level & Tool - Rev.
2891i-4English_Manuals 6/4/18 10:28 AM Page 18 18 ©2018 Johnson Level & Tool - Rev.
