Johnson Level & Tool Mfg. 40-6690 - Manual (Page 6)

6 ©2012 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
a) Put 4 “D” alkaline batteries into the battery pack
following the polarity direction indication. Put the
alkaline battery pack cover back, and install the
battery pack into the laser.
b) Install the rechargeable battery pack into
the laser.
Recharging the battery pack
Plug the adapter into the charging port on the rechargeable battery. The adapter box
charging LED is red during the charging process, and it will turn to green when the battery
is fully charged.
Additional External Power Cables included
1) 12V adapter 2) Car adapter
Note: Recharge the battery when the battery indication shows low or no power.
Charging LED on adapter box
Charging the battery pack
outside the laser
Charging the battery pack
with rechargeable battery
pack in laser
Alkaline battery box installation
Rechargeable battery box installation