©2010 Johnson Level & Tool - Rev. 1 7
6. Operating Instructions
IMPORTANT: It is the responsibility of the user to verify the
calibration of the laser before each use.
Alkaline Battery Installation
Note: Always check to be sure that the on/off switch is in the off
position before removing and replacing batteries.
1. Install alkaline batteries into the battery case according to the
polarity illustrated in the battery compartment.
2. Place the battery door back and tighten the screw.
Bubble Adjustment While in Use Vertically
1. Turn the lock knob counter-clockwise to off position to “LOCK” the
compensator. The laser is now operating in a “manual mode”
and is not self-leveling.
3515H-All_Manuals 6/2/10 10:16 AM Page 7
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