TM 5-6675-270-15
b. Inspection. Inspect all metal parts for
6-112. Assembly
burred edges and dents. Inspect all threaded parts
a. Refer to figure 6-13 and assemble the tele-
for worn or damaged threads. Inspect the prisms
scope level assembly.
for cracks, scratches, and etching.
c. Repair. Remove all burs and minor dents.
level assembly.
Replace defective parts which cannot be repaired.
TELESCOPE EYEPIECE AND RETICLE ASSEMBLIES
Section XXIX.
b. Inspection. Inspect all threaded surfaces for
6-113. General
worn or damaged threads. Inspect the housings
The telescope eyepiece assembly is used to bring
and bushings for dents, cracks, and breaks. In-
the lines of the reticle into focuse and to focus
spect the lenses for chips, scratches, and etching.
in the objective point.
c. Repair. Remove all burs. Straighten minor
6-114. Disassembly
dents and bends. Paint all metal surfaces where
a. Remove the telescope eyepiece and reticle
the paint is scratched or worn off. Replace all
assemblies (para 5-32).
defective parts that cannot be repaired.
and disassemble the telescope eyepiece and reticle
6-116. Assembly
assemblies.
and assemble the telescope eyepiece and reticle
assemblies.
a. Cleaning. Clean all metal parts with an ap-
proved solvent. Wipe the lenses clean with lens
b. Install the telescope eyepiece and reticle as-
tissue moistened with grain alcohol or acetone.
semblies (para 5-32).
Brush all threaded parts with a small brush
c. Adjust the reticle to compensate for hori-
dipped in cleaning solvent. Dry all parts
zontal collimation error (para 2-9).
thoroughly with a clean, soft cloth.
TELESCOPE FOCUS AND OBJECTIVE ASSEMBLIES
Section XXX.
ing solvent. Clean the lens with a soft, lint-free
6-117. General
cloth moistened in grain alcohol or acetone.
The objective end of the telescope collects and
concentrates a larger beam of light than is
b. Inspection. Inspect the lens for scratches,
possible with the naked eye. The objective lens
chips, cracks, and etching. Inspect the focusing
assemblies also magnify the sighted object into
tubes, lens mount, and housings for burs, cracks,
sharp focus for the operator.
breaks, and worn or damaged threads.
c. Repair. Remove all burs and minor dents.
6-118. Disassembly
Replace defective parts that cannot be repaired.
a. Remove the telescope focus and objective
assemblies (para 5-33).
6-120. Assembly
and disassemble the telescope focus and objective
and assemble the telescope focus and objective
assemblies.
assemblies.
b. Install the telescope focus and objective as-
semblies (para 5-33).
a. Cleaning. Clean all metal parts with a clean-
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