1.
Back
sight
5.
Desiccant
container
6.
Plate level
2.
Tribrach
star
plate
3.
Alidade
receptacle
7.
Foresight
4.
Base
assembly
8.
Mirror
mounting
2-3.
Theodolite
removed
from
base
assembly.
a s s e m b l y in the hole in the bottom of the tripod
2-24. Collimation Level Mirror Assembly
bridge screw.
T h e tiltable collimation level mirror assembly (1,
(2) Lock the plumb bob assembly in the
b r i d g e screw by turning the bayonet tube one-half
alidade. The mirror is used by the operator to view
turn. Seat the tripod feet firmly in the ground using
the position of the level bubble when checking
foot pressure on the metal tripod foot shoes. Level
vertical
t h e tripod head by adjusting the tripod legs.
Installation
or
Setting-up
Instructions
b.
Theodolite.
a. Tripod.
(1) Remove the theodolite from the carrying
( 1 ) Remove the tripod head cover (7, fig. 2-4)
case (fig. 2-6) by grasping the carrying strap (1, fig.
f r o m the tripod head. Set the tripod (2) over the
s t a t i o n point (5). Remove the pumb bob assembly
levers (3). Pull outwards, which will release the
clamping
from
the
base
assembly
(4).
which is mounted on the inside of one of the tripod
Remove the metal hood assembly (2) from the base
assembly (4).
legs. Insert the bayonet tube of the plumb bob
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