2 Donning the CEP and Checking the Fit
a Attach the proper foam tip to each earplug by threading the plastic end of
the foam tip onto the earplug. Do not tighten too much; tighten only enough to seat the foam tip
onto the CEP housing. About one revolution of the plastic end is usually enough.
b Drape the CEP over your shoulders and on either side of your neck from
the back so that the earplug attached to th shorter cord is on your right and the longer cord is on
your left. (One way to remember this is "Long is Left.") This will ensure that the connector end
is positioned toward the right in the back so it will reach the helmet connector.
Do not force the earplug into the ear. This may cause the foam tip to be
pushed back, exposing the plastic tube inside. This will diminish hearing
protection and ay cause injury to the ear canal. Ensure that the proper
foam tip is attached to each earplug before inserting the earplug into the
c Compress the foam tip (Figure 11) of one earplug to about 1/3 of its original
diameter by rolling it between your thumb and index finger. This will ease insertion into the ear.
Do not squeeze the foam tip flat. When compressing the foam tip, do not allow a crease to
form. This will diminish hearing protection.
d Hold the earplug housing (Figure 11) between the thumb and index finger
on your hand on the same side as the earplug being fitted. With your other hand, reach behind
your head and pull your ear on the same side as the earplug up and away from your head. This
will straighten the ear canal to ease earplug insertion. Carefully insert the foam tip of the
earplug into the ear.
Figure 11. Earplug.