TM 5-6675-307-14
Figure 7-7. Telescope prismatic eyepiece.
c.
Cleaning
(2) Clean prism and sun filter with lens
tissue.
WARNING
d.
Inspection.
Dry cleaning solvent, P-D-680, used
(1) Inspect prism for chips, cracks,
to
clean
parts
is
potentially
scratches and etching.
dangerous
to
personnel
and
(2) Check metal parts for cracks and
property.
Avoid repeated and
distortion.
prolonged skin contact. Do not use
(3) Check condition of threads. Replace
near open flame or excessive heat.
any defective part.
Flash point of solvent is 100 F. (38
e. Reassembly.
Reassemble prismatic
C.) 138 F. (59 C.).
eyepiece in reverse order of disassembly.
(1) Clean non-optical parts with cleaning
solvent, Federal Specification P-D-680, and dry
thoroughly.
7-11