Operating instructions – Johnson Level & Tool Mfg. 40-6660 User Manual

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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. Open the battery box and put in rechargeable battery pack.

Please pay attention to polarity.

2. Indicator lamp blinking means low voltage. Charge the rechargeable

battery pack before initial use.

Note:

• As for the initial two times charge of new battery pack, it is

necessary to charge for 12-plus hours.

• Do not charge alkaline batteries to avoid explosion.

• Used (discharged) batteries are hazardous waste and should be

disposed of properly.

DC Outlet

1. Connect adapter (included) to the outlet.

2. You don't need to take out the battery pack when using the

adapter.

Power-On

1. By setting the locking knob to UNLOCK

position, the self-leveling system is
released, and simultaneously the
instrument is powered on.

Unlocking Position