ACT THE-14, Руководство оператора

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2.3 Battery Installation:
Install one (1) AA battery as follows.
1. Remove the battery cap by turning it counter-clockwise.
2. Check to ensure the o-ring is present. If not, replace it.
3. Observe polarity as indicated on the outside of the battery
compartment and battery cap.
4. Insert battery into the battery compartment, minus (-)
end first.
5. Replace battery cap by pushing and turning it clockwise.
Tighten it firmly to ensure a watertight seal.
Figure 2-1 Standard Installations
2.4 Eyecup Installation:
Perform the following procedure to install eyecup onto the
monocular.
1. Carefully press the eyecup over the end of the eye cup retainer ring.