PS Magazine - TB 43-PS-628
PS, The Preventative Maintenance Monthly
ISSUE 628
MARCH 2005
•
Wash the plugs in soap and warm
water. Rinse thoroughly. Shake off
excess water. Let the plugs dry before
returning them to the carrying case.
•
Earplugs work only if they’re prop-
erly inserted. After you’ve put them
in your ears, gently tug on the plugs.
If you feel no movement, it’s a sign
the plugs are firmly seated.
•
The standard carrying case has a seating
device for the triple flange earplug. You
can also use the seating device to insert the
single-sided combat arms earplug.
When you’re around noisy
machinery, put the
olive drab
end of the plugs in your ears to
protect your hearing against
steady-state noise.
The earplugs are available in
the Army supply system and
through their distributor:
Brock Sales Co.
1155 Providence Road
Suite C
Brandon, FL 33511
(813) 662-2251
PS 628
MAR 05
53
Hearing
Protection…
A
s a soldier, you face two kinds of noise that can damage your hearing over time: One
is steady-state noise, the kind you’re exposed to when you run a jackhammer, operate
a power generator or ride in an armored vehicle. The other is high-frequency impulse
noise from weapons fire.
Wearing standard earplugs protects
your hearing against the steady-state
noise of machinery operating from 85 to
104 decibels. But these same earplugs
have serious drawbacks when you get
away from noisy machinery and go out
on foot patrol.
Standard earplugs protect your hearing
against the noise of weapons fire. And, in
relative quiet, they also make it harder to
hear speech and detect the sounds of
combat—sounds such as an approaching
vehicle, the closing of a rifle bolt or a
footfall on leaves and twigs.
That’s why you need a pair of
combat arms earplugs,
NSN 6515-01-466-2710.
They’re two-ended plugs that protect against both the steady-state noise of machinery
and the impulse noise of weapons fire. They also let a soldier on foot patrol hear most
speech and detect combat sounds.
Here are a
few tips on
the care
and use of
the ear-
plugs…
and Here’s another
sign they’re firmly
seated… Your voice
will sound
low-
toned
and
muffled
to you.
Use seating device
to insert earplug
Here’s
how they
work…
With the combat arms earplugs you don’t
have to carry two types of plugs to guard
against two types of noise. The plugs come in
one size, which should fit most wearers. You
can wear them with most headgear.
You can also get a single-sided version of
the plug, NSN 6515-01-512-6072, that
guards against only the noise of weapons fire.
When you’re away from
operating machinery and on
foot, put the
yellow
ends in
your ears to protect against the
impulse noise of weapons fire.
Insert
yellow
plug for
weapons
fire noise
Insert
olive
drab
plug
for steady-
state noise
Hey, Dad!
Ain’t this da
bomb!?
That it
is, son, it
surely is.
hey!
look out!
are you
deaf?
These
earplugs
work for
all
kinds
of noise!
628.52-53(C)
1/27/05
6:35 PM
Page 1
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