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Chapter 3: Helmet Maintenance
NOTE:
Before you install the replacement liner (Steps 2 and 3), ensure all attaching hardware
for visor configuration, which will be covered by liner, is in place. You can also cover the interior
hardware with masking tape to ease installation of the liner.
2. Referring to
, do the
following:
a. Install front and rear hook
fastener tapes on the inside
surface of the energy-absorbing
liner. All four fasteners should be
installed approximately 38mm
(1-1/2 inches) to the left and right
of the center of the liner and
approximately 6mm (1/4 inch)
from the edge to avoid pressure
points.
b. Rotate the liner 90 degrees and
place it into helmet shell.
3. Referring to
, do the
following:
a. Reverse the rotation, and place
the front edge of the energy-
absorbing liner firmly against
the inside surface of the front
helmet shell edgeroll. Ensure that
the liner is centered within the
helmet.
b. Press the rear portion of the liner
into place, ensuring that the rear
edgeroll is not pinched or curled
under the liner.
4. Reattach the integrated chin/nape strap to the helmet.
5. Attach the earcup assemblies to the pile fastener fabric in the helmet shell earcup cavities,
and route the communications cord for the right earcup between the energy-absorbing
liner and the rear edgeroll as required.
6. Reattach the TPL or XLiner to the energy-absorbing liner.
7.
Have the aircrew member don the helmet; check the fit as described in Paragraph 2-2.3.
NOTE:
Lower the visor to ensure that it is centered on the bridge of the nose. If it is not
centered, you may have to reposition the TPL or XLiner or the energy-absorbing liner.
Figure 3-10. Installing Liner
Figure 3-11. Liner Installed
Front
Front
Helmet shell
Liner
Rear
Hook fastener
tapes
Front
Rear
Edgeroll
Edgeroll
Liner
