Manual

23
ITEM
NO.
INTERVAL CHECK/SERVICE PROCEDURE NOT FULLY MISSION CAPABLE IF
4 Before/
After
Monocular Inspect for cracks or damage. Scratch-
es, cracks, chips and gouges are OK if
operation is not aected.
Cracks or damage in the
monocular.
5 Before/
After
Eyepiece Lens Rotate diopter adjustment to make
sure the eyepiece lens moves freely
and is not loose. Range is approxi-
mately ½ turn.
Binding, not moving freely or
too loose.
6 Before/
After
Eyecup Inspect for dirt, dust, cracked or torn
eyecup. Inspect for bent, broken, or
improperly tting eyepiece lens. If
necessary, clean with water.
Chips and cracks are permitted
on the eyecup retaining rings
as long as they do not interfere
with installation of eyecup.
7 Before/
After
Eyeguard Inspect for dirt, dust, cracked or torn
eyeguard. Inspect for bent, broken, or
improperly tting eyeguard. If neces-
sary, clean with water.
Chips and cracks are permit-
ted on the eyeguard retaining
rings as long as they do not
interfere with installation of
eyeguard.
8 Before/
After
Objective
Lens
Rotate focus ring to ensure free move-
ment (range is approximately 1/3
turn). Check objective lens for chips,
cracks and dents.
Check the innity focus locking ring
for tightness. Check for cracks.
Focus ring is binding or not
able to move.
Chips, cracks, or dents prevent
full eld-of-view or the ability
to focus.
Cracked or loose.
9 Before/
After
Neck Cord
and Objective
Lens Cap
Inspect for cracked, torn, or missing
objective lens cap. Inspect neck cord
for cut, damage, or loose ends.
Re-tie ends if necessary.
Damaged.
10 Before/
After
Viewed Image
NOTE:
Operator may use the TS-4348/
UV to check resolution (paragraph
3.2.2).
Refer to paragraph 2.2.3 to inspect for
operational defects.
Flickering, ashing, edge glow,
or shading is observed.
11 Before/
After
HEADMOUNT
Straps/Pads
NOTE:
If any of the following items are
damaged it does not cause the en-
tire end item to be “not fully mission
capable”. However, the damaged
item should be replaced as soon as
practical to restore full capability of
the system.
Inspect for cuts, tears, fraying, holes,
cracks, or defective fasteners.
Damage causes straps or pads
to be unserviceable.
TABLE 31. CONTINUED