TM 56675-307-14
c. Insert Inspection and Replacement.
(2)
If any damage is present, replace the inserts.
d. Insert Installation. Install the inserts in the reverse
or damage.
order of removal.
Section X. MAINTENANCE OF ACCESSORIES
4-19. General
b. Cleaning and Inspection.
The accessories consist of a plastic cover to protect the
WARNING
theodolite when not in use; a telescope sunglass which
protects the operator against eye damage when
performing observations against direct sunlight, three
Dry cleaning solvent, P-D-680, used to
adjusting pins and a flat-tip screwdriver used to adjust
clean parts is potentially dangerous to
the horizontal axis; vertical reading assembly and the
personnel and property. Avoid repeated
and prolonged skin contact. Do not use
tissue, orange stick and chamois used to clean the lens
near open flame or excessive heat.
and prisms; a tube of lubricant for lubricating the tangent
Flash point of solvent is 100F. (38C.)
and leveling screws on the theodolite and tribrach; a
138 F. (59 C.).
light attachment used for night observations; telescope
and microscope prismatic eyepieces used for high or
(1) Clean all metal parts with a clean lint free
low observations; and a compass used for reading
cloth dampened with an approved cleaning solvent.
(2) Dust the lenses and prisms with a brush
are stored in the accessory case. In addition to the
and wash with alcohol or acetone and dry with lens
accessory case, there is a battery case, hand lamp and
tissue.
power cable. The hand lamp and power cable are
(3) Inspect the lenses and prisms for chips
stored in the battery case when not in use.
and breaks. Inspect the metal parts for bends, breaks
and burrs.
4-20. Adjusting Pins and Screwdriver
(4) Replace defective prismatic eyepieces.
c. Installation. Install the prismatic eyepieces in
a. Removal.
Remove the adjusting pins and
the accessory case.
screwdriver from the accessory case.
b. Cleaning, Inspection and Repair.
4-23. Dust Brush, Chamois and Plastic Cover
WARNING
a. General. The dust brush and chamois are used
to clean the theodolite. The plastic cover is used to
protect the theodolite.
Dry cleaning solvent, P-D-680, used to
b. Cleaning and Inspection.
clean parts is potentially dangerous to
(1) Clean the brush and plastic cover with
personnel and property. Avoid repeated
soap and water and dry thoroughly.
and prolonged skin contact. Do not use
(2) Inspect the brush for loose, frayed or
near open flame or excessive heat.
broken bristles.
Flash point of solvent is 100 F. (38 C.)
(3) Inspect plastic cover for cracks and rips.
138 F. (59 C.).
(4) Inspect chamois for rips, frays and dirt.
(5) Replace a defective brush, plastic cover
(1) Clean adjusting pins and screwdriver with
or chamois.
an approved cleaning solvent, P-D-680, and dry
c. Installation. Install the brush, plastic cover and
thoroughly.
chamois in accessory case.
(2) Inspect adjusting pins and screwdriver for
4-24. Light Attachment
bends, nicks, burrs and damage.
a. General. The light attachment is used for night
(3) Remove all burrs and straighten bends.
(4) Replace defective adjusting pins or
observation. It is mounted on the vertical circle side of
screwdriver.
the theodolite.
c. Installation.
b. Cleaning, Inspection and Repair.
Replace adjusting pins and
screwdriver in the accessory case.
4-21. Telescope Sun Filter
WARNING
a. General. The telescope sunglass is a pushfit on
Dry cleaning solvent, P-D-680, used to
clean parts is potentially dangerous to
personnel and property. Avoid repeated
and prolonged skin contact. Do not use
4-10