TM 5-6675-307-14
Section VII. MAINTENANCE
4-12. General
(2) Inspect the sunshade for damage or
distortion.
This section contains instructions for the information and
(3) Inspect the retaining screw for stripped
guidance of organizational maintenance personnel in
threads or burrs.
maintaining the theodolite.
4-14. Tribrach
4-13. Telescope Sunshade
a. General. The sunshade is mounted over the
a. General. The tribrach serves as the mounting
objective end of the telescope to prevent reflections on
for the theodolite alidade. The tribrach mounts on the
the lens during bright day operation.
tripod base plate. The tribrach is equipped with leveling
screws and a circular level to provide a perfectly level
b. Removal. Refer to figure 4-1 and remove
support for the theodolite.
b. Removal. Refer to figure 4-2 and remove the
telescope sunshade.
tribrach.
Figure 4-1. Telescope sunshade, removal and
installation.
Figure 4-2. Tribrach, removal and installation.
c.
Cleaning and Inspection.
c.
Cleaning and Inspection.
WARNING
WARNING
Dry cleaning solvent, P-D-680, used to
Dry cleaning solvent, P-D-680, used
clean parts is potentially dangerous to
to
clean
parts
is
potentially
personnel and property.
Avoid
dangerous
to
personnel
and
repeated and prolonged skin contact.
property.
Avoid repeated and
Do not use near open flame or
prolonged skin contact. Do not use
excessive heat. Flash point of solvent
near open flame or excessive heat.
is 100 F. (380 C.) 138 F. (59 C.).
Flash point of solvent is 100 F. (38
(1) Clean all metal parts with an approved
C.) 138 F. (59 C.).
solvent, P-D-680; dry thoroughly.
4-4