Technical data

3.3.3. INSTALLATION OF THE EYECUP OR EYEGUARD

Perform the following procedure to install eyecup or eyeguard onto the monocular. Refer to Figure

3-8.

(1) Carefully press the eyecup or eyeguard over the end of the eyepiece lens.

(2) Rotate the eyecup or eyeguard into proper viewing position. Adjust for the best t. The eyecup must

seal around your eye, preventing the green glow from leaking out.

3.3.4. INSTALLATION OF THE DEMIST SHIELD

Perform the following to install the demist shield on the eyepiece lens. Refer to Figure 3-8.

CAUTION:

If the demist shield needs to be cleaned, refer to paragraph 4.3.1 for instructions. Do not at-

tempt to clean the demist shield while it is wet, or using wet lens paper; doing so will damage

the coating.

NOTE:

If inclement operating conditions are expected, (e.g. signicant temperature changes, high hu-

midity, etc.), install the demist shield prior to the mission in order to reduce lens fogging.

(1) Carefully remove the eyecup or eyeguard.

(2) Carefully press the demist shield onto the eyepiece. Be careful not to smudge the eyepiece lens or

demist shield with your ngers or hands.

(3) Replace the eyecup or eyeguard (see paragraph 3.3.3).

3.3.5. INSTALLATION OF THE SACRIFICIAL WINDOW

Perform the following to install the sacricial window. Refer to Figure 3-8.

CAUTION:

If adverse operating conditions (e.g., large amounts of dust or sand) are expected, attach the

sacricial window prior to the mission to protect the objective lens from scratches or other

damage.

BATTERY

BATTERY CAP

SACRIFICIAL

WINDOW

EYECUP

EYEGUARD

DEMIST

SHIELD

Figure 3-8. Battery, Eyecup and Eyeguard Installation

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