In step (t), ensure that the soldering is performed by qualified personnel,
and in accordance with ANSI/J-STD-001.
(t) Using long-nose pliers, carefully bend the ground lug to about a 45 degree angle
from the shell so that it reaches the unconnected ground wire. Insert the stripped end of the
unconnected ground wire through the small hole at the end of the ground lug. Wrap the
exposed part of the wire once around the end of the ground lug. Solder the wire. Bend the
ground lug flush with the inside surface of the helmet shell.
(2) Attaching the CEP interface harness (CEP900-I04) to earcups.
To avoid damage to the earcup shell, ensure that the pilot hole is
located properly as specified in step (a) below.
(a) Use an awl to make a pilot hole 7/16 inch below (as worn) the center of the
existing hole. (See Figure 8.)
(b) Lay the earcup on a flat surface, and drill a 1/4-inch hole into the pilot hole. (See
%-INCH HOLE FOR INTERFACE CABLE
Figure 8. Earcup Showing Location of Interface Harness.
(c) Carefully pull the part of the communications cord that extends into the right
earcup out from behind the energy-absorbing liner.
(d) Reinsert the communications cord with the grommet back into the previously
existing communication cord hole in the earcup from which it was removed. Carefully pull more
of the communications cord into the earcup to allow easier access to the metal tips o the
communications cord leads. When pulling the cord, be careful not to damage the energy-
When pulling the cord through the grommet in step (e) below, do not pull
on the thin white or black wires.