Sokkia CX Series Operator's Manual page 277

2. Align a clearly visible target (the
edge of a roof for example) on
point A of the reticle line.
3. Use the telescope fine motion
screw to align the target to point B
on a vertical line.
If the target moves parallel to the
vertical line, adjustment is
unnecessary. If its movement
deviates from the vertical line,
have our service representative
adjust it.
35. CHECKS AND ADJUSTMENTS
267