Johnson Level & Tool 40-0918 Instruction Manual page 9

3231H-English_Manuals 3/11/10 10:45 AM Page 9
Use a 2.5 Metric Hex Key to remove the X vial screw in the X
level vial calibration aperture. Then using the 2.5 Metric Hex
Key, adjust the vial bubble to the middle of the vial as shown
below. Repeat the same procedure for the Y vial.
Y Level Vial
Calibrating Aperture
©2010 Johnson Level & Tool - Rev. 1
2.5 Metric Hex Key
Y Level Vial
X Level Vial
Calibrating Aperture
X Level Vial
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