Johnson Level & Tool Mfg. 40-6184 - Manual (Page 11)

©2014 Johnson Level & Tool - Rev. 1 11
Vertical bubble vial check
Put the laser on a smooth and vertical plane, like fixed and firm win-
dow glass, and then check according to steps as follow:
Step 2 Rotate unit 180 degrees.
If the laser is in vertical, the bubble vial position should be as follows:
Step 1
Step 3
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