Sokkia 30R Series, Operator'S Manual, Page: 149 / 178

141
26. CHECKS AND ADJUSTMENTS
5. Use the 4 adjusting screws of the
optical plummet to adjust the
remaining half of the deviation as
shown below.
When the surveying point is on the
lower (upper) part of the
illustration:
Loosen the upper (lower) adjusting
screw slightly, and tighten the
upper (lower) adjusting screw the
same amount to move the
surveying point to a point directly
under the center of the optical
plummet.
(It will move to the line in the figure
on the right.)
If the surveying point is on the solid
line (dotted line):
Loosen the right (left) adjusting
screw slightly and, tighten the left
(right) adjusting screw by the same
amount to move the surveying
point to a point in the center of the
optical plummet.
%
• Be extremely careful to adjust all the adjustment screws by the same amount
so that none will be over-tightened.
6. Check to make sure that the
surveying point remains centered
on the reticle even if the upper
part of the instrument is rotated.
If necessary, perform the
adjustment again.
7. Replace the optical plummet
reticle cover.
1 (2)
2 (1)
4
(3)
3
(4)
30R.book 141 ページ ２００３年１２月１６日 火曜日 午後５時１５分