2-9
ITEM
NO.
INTER-
VAL
LOCATION
PROCEDURE
NOT FULLY
MISSION
CHECk/
SERVICE
7 Before/
After
Eyeguard Inspect for dirt, dust, cracked or torn eye-
guard. Inspect for bent, broken, or improp-
erly fitting eyeguard. If necessary, clean
with water.
Chips and cracks are
permitted on the eye-
guard retaining rings
as long as they do not
interfere with installa-
tion of eyeguard.
8 Before/
After
Objective Lens Rotate focus ring to ensure free movement
(range is approximately 1/3 turn). Check
objective lens for chips, cracks and dents.
Check the infinity focus locking ring for
tightness. Check for cracks.
Focus ring is binding
or not able to move.
Chip s , c r acks, or
dents prevent full
field-of-view, instal-
lation of LIF or the
ability to focus.
Cracked or loose.
9 Before/
After
Neck Cor d and
O b j e c tive L e n s
Cap
Inspect for cracked, torn, or missing ob-
jective lens cap. Inspect neck cord for cut,
damage, or loose ends.
Re-tie ends if necessary.
Damaged.
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