6 ©2010 Johnson Level & Tool - Rev. 1
6. Operating Instructions
IMPORTANT: It is the responsibility of the user to verify the
calibration of the instrument before each use.
Battery Installation
Note: Always check to be sure that the on/off switch is in the off
position before removing and replacing batteries.
1. As shown in fig. 3, remove battery cover.
2. Put three “AA” alkaline batteries into the
battery compartment noting polarity (as
shown). Note: Remove white sensormatic
tag before installing the batteries.
3. Re-attach the battery cover.
Note: Used (discharged) batteries are hazardous waste and
should be disposed of properly.
Using the Instrument
1. Place product on a relatively smooth, flat, and level surface.
Note: Product must be within ±4.5° of level for self-leveling feature
to function properly. Greater than 4.5° will result in an alarm
condition (flashing laser and intermittent beeping sound).
2. Rotate on/off switch fully clockwise. This will release the self-leveling
locking mechanism and turn unit on.
3. Turn unit off by rotating on/off switch fully counter clockwise. This
will engage the self-leveling locking mechanism and turn unit off,
ensuring that the unit will not get damaged when moved or stored.
3589H-New_Manuals 7/8/10 9:39 AM Page 6
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