Name: Johnson Level & Tool 40-6603
Brand: Johnson Level & Tool
Rating: 4 (1 reviews)

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5. Move the tripod as close as possible to wall B, and make the

cross dot project on the staff/wall A. Make a mark and label

as A2.

6. Rotate the instrument by 180° and move the cross dot to project

on the staff/wall B. Make a mark and label as B2.

7. Calculate the vertical distance (A1-A2) – (B1-B2) = e

8. If e < 3/16″ at 15′, the instrument is properly calibrated.

1834i-English_Manuals 4/27/17 2:22 PM Page 12

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Johnson Level & Tool 40-6603 Specifications

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