Johnson Level & Tool Mfg. 40-6662 - Manual (Page 14)

14 ©2011 Johnson Level & Tool - Rev.1
Self-Calibration Adjustment
Self-Calibrating the side vertical laser lines (not the front
vertical laser line) for plumb
1. Locate the calibration port inside the battery
compartment.
2. Remove the rubber plug.
3. Unlock the compensator.
4. Use a 3mm hex head wrench.
5. Turn the calibration screw counter clockwise to move the top of
the side vertical lines to the back of the unit (towards the battery
compartment). Do not rotate the screw more than 4 rotations.
6. If the side vertical lines can not be brought into plumb after 4
rotations of the screw, send the instrument to an authorized repair
facility for repairs.
Self-Calibrating the horizontal laser line and front vertical laser line
1. Locate calibration port on the side of the laser unit.
2. Remove the plastic screw.
3. Unlock the compensator.
4. Use a 3mm hex head wrench.
5. Rotate the screw counter clockwise to raise the
left side of the horizontal line and to adjust the
top of the front vertical line to the right. Do not rotate the screw
more than 4 rotations.
6. If the laser lines can not be brought into calibration after 4
rotations, send the instrument to an authorized repair facility
for repairs.
4386H-English_Manuals 2/24/11 3:04 PM Page 14