The earcup grommet may be difficult to pull through the helmet shell.
(r) From inside the helmet, slide the ground lug over the wires and onto the
connector, followed by the nut. Ensure that the unattached ground wire is pulled through the
ground wire is pulled through the ground lug and nut as shown in Figure 6.
UNATTACHED GROUND WIRE
Figure 6. CEP Interface Harness (Inside View).
(s) Ensure that the ground lug is oriented toward the crown of the helmet as shown
in Figure 7. Tighten the nut using the 7/16-inch open-end wrench. Ensure that the nut is tight
enough that the ground lug will not rotate when pushed.
Figure 7. CEP Interface Harness Installed.