Armasight NAMPVS700133DB1 PVS7 GEN 3 Bravo Night vision goggles - Manual (Page 27)

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7. Unfasten the neck strap latch on the left side of the neck strap.
8. Put the helmet on. Do not fasten the helmet chin strap.
9. Fasten the neck strap using the neck strap latch. Tighten the neck strap until it fits securely, then in-
stall and tighten the helmet chin strap. The brow of the helmet should be parallel to the ground and
the helmet should be stable on the head.
10. To install the mount assembly into the clip/ strap assembly, slide its top flange into the top groove
of the mounting clip and press the mount assembly bottom until it locks into place with a click (see
Figure 3-9).
3.3.3 OPERATING PROCEDURES
This section contains operating procedures for using the PVS-7 as a hand-held, head-mounted, or hel-
met-mounted device. Prior to operating the goggles, ensure that all the steps in paragraph 2-6 have
been read and performed.
A. Head-mounted Operation. Perform the following procedures for head-mounted operation.
CAUTION :
Only operate the PVS-7 in dark environments. If you must operate the device in daylight, use
the lens cap to cover the objective lens.
NOTE:
Proper objective focus cannot be achieved while the objective lens cap is covering the objective
lens. Objective focus must be done in the dark with the objective lens cover removed.
1. Ensure that the batteries are installed per paragraph 3.3.1, B.
2. Wear the head mount per the instructions in paragraph 3.3.1, H.
NOTE:
Paragraphs 3.3.1, J, K and L provide additional information that is required to install the head
mount with a protective mask, PASGT or M1 helmet.
To make it easier to align the goggles, eyecups and diopter eyepieces with your eyes, depress the
socket-release button (See Figure 3-6) and slide the head mount socket completely forward before
attaching the goggles.
3. Align the PVS-7‘s latch (Figure 3-1) to the head mount socket (See Figure 3-7). Press and hold down on
the latch lever while installing the goggles into the head mount socket. Release the latch when the
goggles are fully installed in the socket.
4. For maximum eye comfort, depress the socket-release button and move the PVS-7 backwards until
the eyecups comfortably seal around your eyes.
5. Turn the RESET/ OFF-ON-IR/ PULL switch ON.
6. Adjust the interpupillary distance (Figure 3-1) by sliding the eyepieces together or apart so each eye
can observe the entire field of view at the same time. The eyepieces adjust independently.
7. Readjust the vertical strap assembly (see Figure 3-6) for vertical adjustment of the head mount; the
PVS-7 should be properly aligned with your eyes.