TM5-6675-296-14
Figure 4-24. Telescope and microscope eyepieces, removal and installation.
(2) Install telescope eyepiece by turning
c. Cleaning and Inspection.
(1) Carefully clean the metal parts of the
l o c k i n g ring clockwise.
telescope and microscope eyepieces with a clean,
4-21. Diagonal Eyepieces
dry cloth.
a. General. The microscope diagonal eyepiece
(2) Remove dust or dirt from the lenses with a
and the telescope diagonal eyepiece perform the
soft brush, lens tissue, grain alcohol or acetone.
function of the conventional eyepieces listed in a.
CAUTION
above. In addition, they enable the instrument
Do not use acetone on plastic material.
man to take sightings and readings up to the
(3) Inspect the eyepieces for worn or darnaged
zenith.
threads, bent or broken metal parts, and chipped,
b. Removal.
cracked, or etched lenses.
(1) Remove telescope diagonal eyepiece (fig.
(4) Replace defective eyepieces.
4-25) by
turning locking ring counterclockwise.
d. Installation.
(2) Release locking lever and remove
microscope diagonal eyepiece.
turning clockwise.