2-4
CAUTION
If the demist shield needs to be cleaned, refer to paragraph
4.3.1. for cleaning. If the demist shield is wiped while wet or
with wet lens paper, you will damage the coating.
NOTE
If inclement operating conditions are expected to exist (e. g.
significant temperature change and high humidity), install
demist shield to minimize eyepiece lens fog prior to execution
of mission.
(1) Carefully remove the eyecup.
(2) Carefully press the demist shield onto the eyepiece. Be careful
not to smudge the eyepiece lens or demist shield.
(3) Replace the eyecup (see paragraph 2.1.2.).
2.1.4. INSTALLATION AND ADJUSTMENT
OF HEADMOUNT
Perform the following procedures for donning the headmount.
NOTE
Do not don the headmount while the monocular is attached.
(1) Prior to donning the headmount, loosen the four ends of the
chinstrap approximately two inches from the sliding bar buckles
(Figure 2.4.).
(2) Snap the front and rear snaps (Figure 2.2.) in place.
NOTE
If the headmount is too loose, remove the attached thin brow-
pad (Figure 2.2.) and replace with either the medium or thick
browpad stored in the carrying case. Refer to paragraph ` for
removal and replacement of the browpads.
(3) With both hands grasp the neck pad (Figure 2.2.) and pull the
harness over your head and the neck pad down to the back of your
neck.
(4) Holding the chin cup in position on chin, adjust both sides of the
chinstrap until you feel light pressure against your chin. (DO NOT
TIGHTEN.)
(5) Maintain the position of the chin cup and remove any slack from
the chinstrap. (DO NOT TIGHTEN.)
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