C1, TM 9-1240-318-35
Section I. GENERAL
determine the nature of unserviceability, (3) to determine
This chapter sets forth inspection of the telescope m the
the work, repair parts, and supplies required to return the
using position and in maintenance shops.
materiel to serviceability, (4) to ensure that work in
process is being performed properly, and (5) to ensure
that completed work complies fully with serviceability
Inspection is performed primarily, (1) to determine
Section II. INSPECTION IN THE USING POSITION
c. Numbers and letters on identification plate will
be clearly defined.
In general, the telescope will be considered serviceable
if it is complete and all deficiencies have been corrected
d. The rubber eyeshield and cap will be free from
ensuring operation in accordance with serviceability
3-4. Using Position
broken and will be sealed and fastened securely in the
The threads for accepting the
Inspection in the using position refers to the inspection
instrument light will be free from nicks, burrs, and paint.
performed by maintenance personnel when the
telescope is installed and mounted in position on its
3-7. Inspection of Optical Components
respective weapon system.
a. When looking through the eyepiece or objective
3-5. Modification Work Orders (MWO)
ends of the telescope, there will be no objectional dirt,
smears, scratches, digs condensate, fungus growth,
All applicable modification work orders will be applied.
chips, fractures, or cement separations that would
DA Pamphlet 310-7 contains the MWO Index and
interfere with or effect the optical performance of the
equipment records DA Form 2408-5 or DA Form 2409
for the equipment lists MWO's applied.
Note. Optical instruments will not be rejected for
3-6. General Inspection
defects which can be detected only by shading or
shadowing technique. When inspecting through the
a. All assemblies and component parts shall be
eyepiece end of the telescope, rejection is based
present and securely fastened. There shall be no
only on those defects which are apparent when the
evidence of chipping, cracking, blistering, bruising,
instrument is used in a manner simulating field
splotches, overall paint discoloration, bare spots, or
conditions. Shadowing is the technique of looking
damage which expose base metal.
into the eyepiece or objective end of an instrument
b. The dovetail mounting surfaces will not be
particular surface in the optical system. With this
damaged in any way that would prevent proper seating
method, the surfaces of lenses and the reticle are
of the telescope in its mount.
dark grey in appearance and all defects such as
condensate, scratches, etc. show up as white