Johnson Level & Tool Mfg. 40-6639 - Manual (Page 6)

6 ©2012 Johnson Level & Tool
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.
Loosen the battery compartment screw, put 4 x AA alkaline batteries
into the battery compartment according to the polarity indication
shown in the battery compartment. Then put the battery
compartment back on and tighten the battery door screw.
Note:
• When power indication LED is flashing, alkaline batteries should
be replaced soon.
• Pay attention to the polarity of the batteries.
• Used (discharged) batteries are hazardous waste and should be
disposed of properly.
Battery
Compartment
Screws
Polarity Indication of Battery
6249H_Manuals 10/18/12 2:49 PM Page 6