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Using your instrument
Level-transits
The following example illustrates how to use a level-transit for laying
out roads, building lines, ditches, orchards, fences, hedges, fields, etc.
A
B
C
D
E
Running straight lines with a level-transit
(Although it is possible to run straight lines with a level, it is faster
and more accurate to use a level-transit.)
To run a straight line between stakes A and E, position the instru-
ment directly over A. After you level the instrument, release the
lock that holds the telescope in the level position and swing the
instrument until point E is aligned with the vertical cross hair.
Tighten the horizontal clamp so the telescope can move only in a
vertical plane. By pointing the telescope up or down, points B, C
and D can be located.
Establishing vertical lines and planes
It is necessary to use a level-transit instrument for taking vertical
sights, such as lining up a building wall, aligning piers or fencing,
flagpoles, T.V. antennas, plumbing windows or doorways, etc.
To establish vertical lines and planes, first level the instrument,
then release the locking levers which hold the telescope in the
level position. Swing the telescope vertically and horizontally until
the line to be established is directly on the vertical cross hair. If the
telescope is rotated up or down, each point cut by the vertical
cross hair should be in a vertical plane with the starting point.
15
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