TM 5-6675-250-20
2-16. DETERMINATION OF AZIMUTH VALUE FOR REFERENCE MIRROR (Continued)
L O C A T I O N / I T EM
A C T I ON
R E M A R K S
SERVICE (Continued)
3.
F i n e - l e v e l i ng
o f u n it
a.
Rotate theodolite alidade (1) so that the long
axis of the plate level (2) is in the same plane
as one of the tripod legs (3).
b.
Adjust fine-level control (4) to place the bub-
ble in the center of the level vial.
N O T E
If adjustment can not be made proceed to steps c. and d.
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