Gentex HGU-56/P, Operation And Maintenance Instructions

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13. Position visor housing assembly
on helmet, and start four
thumbscrews into helmet to attach
visor assembly as shown in
Figure 2-19 . After all four
thumbscrews are started, tighten
them.
14. Referring to Figure 2-20 , attach
two 2-inch x 3-inch pile fastener
pieces (supplied in the ANVIS
mounting kit) to the helmet as
follows:
a. Position the two pile fastener
pieces at the rear of the helmet
as shown, and mark the area
with a pencil.
b. Clean the marked area with
isopropyl alcohol pads.
c. Affix the pile fasteners within
the marked area.
NOTE: If the pile fastener
pieces fail to stick to the
helmet shell, lightly sand the
area; then affix the pile
fasteners.
15. Install the ANVIS goggles
( Figure 2-21 ) in accordance
with TM 11-5855-263-10.
16. Perform a continuity check
of the ANVIS goggles in
accordance with TM
11-5855-263-10.
15
Figure 2-21. ANVIS Mount with ANVIS
Goggles Installed
Figure 2-19. Visor Housing Assembly
Thumbscrew
(four total)
Figure 2-20. ANVIS Pile Fastener Pieces
Installed
Pile fastener
pieces