ACTinBlack MUM-14, Operator'S Manual

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2-5
Perform the following procedures to install the demist shield on
the eyepiece lens.
1. Carefully remove the eyecup.
2. Gently screw the demist shield into the eyepiece until it
seats, being careful not to smudge the demist shield.
3. Replace the eyecup.
Figure 2-4 Demist Installation
CAUTION
IF THE DEMIST SHIELD IS WIPED WHILE
WET OR WITH WET LENS TISSUE, YOU WILL
DAMAGE THE
COATING.
DEMIST
2-6
2.7 Sacrificial Window Installation:
Perform the following procedure to install the sacrificial
window onto the objective lens assembly.
CAUTION
IF ADVERSE OPERATING CONDITIONS
(BLOWING DUST OR SAND) ARE EXPECTED
TO EXIST, ATTACH THE SACRIFICIAL
WINDOWTOPROTECTTHEOBJECTIVELENS
FROM SCRATCHES OR OTHER DAMAGE.
1. If the objective lens cap is in place, remove it.
2. Carefully push the sacrificial window into the objective
lens with the sacrificial window threads facing toward the
monocular.
3. Securely screw the sacrificial window into the lens until it
seats.
Figure 2-5 Sacrificial Window Installation