5) It was estimated to be four marks on the vial off-center. So you would adjust the screw to
bring it back to two-off the original reading (again, camera angle makes it appear slightly to
the left).
6) Now you can spin the LTW level and verify that the reading, whether it is exactly centered or
not, is the same in either direction. You can now raise/lower the shim stack to establish a
specific thickness to reset the level in the future. If you know it takes .012” on the right hand
side, it makes it very easy to adjust the vial back to level at any given point in time, as long as
your “reference” surface hasn’t changed.
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