Johnson Level & Tool 40-6601 User Manual

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©2021 Johnson Level & Tool - Rev. 2
Horizontal Line Transverse Accuracy Check
Transverse accuracy refers to the accuracy of the horizontal laser
beam projected along the wall and ensures the beam is level from
left to right.
1. Set the tool on a tripod and place approximately 15′ from a wall.
2. Unlock and power the unit on.
3. Face the laser line to the wall, and set the center as Point A.
4. Make a mark on the wall for Point A.
5. Make another mark on the wall 8′ from Point A and mark on the
wall as Point M.
6. Rotate the tool
90° and make a mark on the wall 15′ from
Point A. Label this mark as Point B.
7. Measure the distance ‘e’ from Point M to the laser line, as per the
figure. If ‘e’ < 3/16″, then the tool is properly calibrated.
8 ft (2.5m)
15 ft (5m)
8 ft (2.5m)

Johnson Level & Tool 40-6601 Specifications

General

Brand	Johnson Level & Tool
Model	40-6601
Category	Measuring Instruments
Language	English