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D-7. BORESIGHT ALIGNMENT
- Switch the collimator pattern illuminator on in daytime mode.
- Without the sight, looking through the telescope check match-
ing it's crosshair with collimator crosshair.
- Switch the collimator pattern illuminator on in nighttime mode.
- Put the sight onto the mounting rail, switch it on and rotate
focus ring to achieve sharp image.
- remove four adjustment screws and apply small amount of
thread locker.
- looking through the telescope, turn adjustment screws (Fi-
gure D-2, 6) by pairs to match image of collimator crosshair
with crosshair of the telescope.
D-8. NITROGEN PURGE
- remove the purge screw (Figure D-1, 12) with the o-ring
(Figure D-1, 11).
- Check airtightness of the sight and fill it with dry nitrogen.
- Install the purge screw with the o-ring and tight.
D-7
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