TM 5-6675-312-14
Key
Control or Indicator
Function
3
Clamp lever assembly
Locks horizontal circle in position.
4
Plate level
Used for precision theodolite leveling.
5
Window
Illuminates plate level when electric
illumination is used.
6
Reading microscope eyepiece
Used to read horizontal (Hz) and verti-
cal (V) circle scales.
7
Telescope eyepiece
Used for viewing target.
8
Illumination mirror
Directs light upon horizontal and vertical
circles during daylight operation.
9
Bayonet lockring
Locks eyepiece In position.
10
Focusing sleeve
Focues target in telescope. Has coarse
and fine motion.
11
Optical sight
Used for aiming telescope.
12
Carrying handle locking screw
Secures carrying handle to theodolite.
13
Carrying handle
Used to carry theodolite and tribrach
.
assembly
14
Carrying handle safety catch
Secures carrying handle to theodolite.
15
White dot
Indicates tilting axis.
16
Vertical clamp
Locks telescope in vertical position.
17
Vertical drive screw
Provides precision vertical adjustment of
telescope.
18
Optical plummet
Used to position theodolite and tribrach
assembly over station point.
19
Horizontal drive screw
Provides precision horizontal adjustment.
20
Horizontal clamp
Locks theodolite in horizontal position.
21
Locking knob
Locks theodolite to tribrach assembly.
5-6675-312-14/2-1.2
Figure 2-1. Theodolite and tribrach assembly controls and indicators (Sheet 2 of 2)
2-3
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