AccuLine 40-6502 Instruction Manual

Contents

AccuLine 40-6502 Instruction Manual Manual pdf 16 page image

16 ©2009 Johnson Level & Tool8. Self-Check and CalibrationIMPORTANT: It is the responsibility of the user to verify thecalibration of the instrument before each use.X and Y-direction Vial Self-Check and Calibration1. As shown in the figure above, place the laser at position L 50’away from the wall (start with the X-vial facing the wall).2. Level the X and Y vials, turn on the laser, adjust the speed sothe beam can be seen on the wall.3. Mark the point where the laser beam hits the wall as X+.4. Turn off the laser and turn it 180º, repeat step 3 and mark thepoint where the laser beam hits the wall as X-.5. Measure the distance between X+ and X-. If it is more than1/8” apart, the X-vial needs calibrating.6. Repeat this same procedure for the Y vial.Calibration MethodMark the middle point as O between X+ and X- on the wall.Using the X vial leveling knob, adjust the beam to the O point.L (50’)X+X-02260H 6/4/09 11:42 AM Page 16