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lOCATION ITEM
SEq.
TO CHECK/
NO.
SERVICE
Battery
4
adapter / Com-
partment
Diopter adjust-
5.
ment rings
6
eyecups
objective lens
7
Focus ring
8
lens Cap
9
viewed Image
10
Bracket
11
Carrying Case
PROCEDURE
Check to make sure battery
adapter is present. remove
battery adapter and inspect
for corrosion, moisture, cor-
roded or defective contacts.
rotate diopter adjustment ring
to make sure the eyepiece is
not too tight or too loose.
Inspect for dirt, dust, and
cracked or torn cups. Inspect
for bent, broken or improperly
fitting eyecups. If necessary,
clean with water.
rotate objective lense focus
rings to ensure free move-
ment.
Inspect for cracked, torn, or
missing lens cap.
refer to Section v – opera-
tion Defects – to inspect for
operational defects.
Inspect for dirt, dust, or cor-
rosion. If necessary, clean
socket with water.
remove all items and shake
out loose dirt or foreign mate-
rial. Inspect for tears, cuts,
excess wear or damage to
mounting clips.
NOT FUNCTION-
ING AT OPTIMAl
lEVEl IF
adapter is miss-
ing, contacts
damaged or cor-
roded.
Binding, not
moving freely or
too loose.
Binding or not
moving freely.
Flickering, flash-
ing, edge glow,
or shading is
observed.
4-3
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