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1. Remove the battery cap by turning it counterclockwise.
2. Check to ensure the o-ring is present. If not, replace it.
3. Observe polarity, as indicated on the outside of the battery com-
partment, and insert either two AA, 1.5 Volt batteries or one 3.0 Volt
BA-5567/U lithium battery into the battery compartment, plus (+)
end first. (Sec Figure 2-2.)
4. Replace battery cap by pushing and turning it clockwise. Tighten
it firmly to ensure a watertight seal.
C. Installation of the Eyecups. Perform the following procedure to
install the eyecups onto the PVS-7. Refer to Figure 2-2.
1. Carefully press each eyecup over the diopter cell retainer.
2. Rotate each eyecup into proper viewing position. Adjust for best
eye fit. The eyecups must seal around your eyes and prevent the
green glow from escaping.
Alkaline
Batteries
(size AA)
Eyecup
Lithium
Battery Cup
Battery
with O-ring
Figure 2-2. Battery and Eye cap Istallation
2-12
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