Night Optics Falcon 6x Gen 3 Gated Long-Range Night Vision Binocular - Manual (Page 91)

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(2) If the helmet mount and strap are connected, remove the
helmet mount. To do this, push the release lever at the top center
of the helmet mount and slide the two assemblies apart.
(3) Adjust the strap to fit the helmet size being used.
(4) With the catch in the most extended position, place the
strap over the top of the helmet, center and hook the rear bracket
onto the rear of the helmet. Center the front bracket hook on the
front of the helmet and hold it in place (see Figure 2-21).
(5) With the buckle lever open, take up the slack in the strap
using catch. Close the buckle lever (see Figure 2-16).
(6) If the helmet has its cloth cover and camouflage strap
installed, it will be necessary to slide the camouflage strap up (at
about a 30
° – 45 ° angle) at the front of the helmet (see Figure 2-
21).
This step is required in order to prevent the helmet mount from
catching on the camouflage strap when the helmet mount is
installed on the strap.
(7) Disengage the nape strap latch on left side of nape
strap.
(8) Don the helmet. Do not fasten the helmet chinstrap.