Figure 21. Objective, eyepiece and reticle, and optical plumbing.

Figure 20. Leveling screw.

Figure 22. Target frame.

Target Set, Surveying: Circular Level And Optical Plummet In Tribrach W/(Quick Release Mechanism Page Navigation
43

19

Nut

10

Spring

20

Nut

11

Puffer

21

Screw

12

Bracket

22

Setscrew

13

Screw

23

Housing

14

Collar

24

Setscrew

15

Tube

25

Prism

16

Collar

26

Setscrew

17

Setscrew

18

Lens assembly

Figure 21. Objective, eyepiece and reticle,

and optical plumbing.

45

AGO 10139A

Western Governors University

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