PS Magazine - TB 43-PS-694
PS, The Preventative Maintenance Monthly
ISSUE 694
SEPTEMBER 2010
36
PS 694
SEP 10
Microphone and Boom
When
you
take
off
the
helmet,
don’t
shove
the
microphone and boom into the
helmet liner. Move the mic and
boom alongside the helmet.
Shoving
the
microphone
and boom into the helmet liner
can put a gouge in the liner.
If that happens, the helmet is
NMC until ALSE replaces the
liner.
The microphone is held on
the boom with a thumbscrew.
Hand tight is all you need
to
keep
it
secure.
If
you
overtighten the thumbscrew,
you’ll break the microphone
and boom. Then it will flap,
and you know you can’t fly
your bird holding a flapping
mike with one hand and flight
controls in the other.
Remove the CEP by
pulling it straight out of
the connector.
Some
crews
can’t
resist
pulling
on
the
helmet actuator knobs
to
force
the
visors
down. That can break
the actuator knobs and
then the helmet is NMC
until your ALSE shop
replaces the visors.
To keep the visors in
smooth operation, use
low pressure air to blow
out grit and sand from
its tracks. Or use a pipe
cleaner to remove gunk.
Chin Strap and TPL Liner
Taking care of your helmet means you should always keep your chin strap and
thermal plastic liner (TPL), NSN 8415-01-395-0001, clean. That includes the
retention assembly cloth, NSN 8515-01-394-8023. When sweat, body and hair oil,
dirt and grease stink up the helmet, it’s time to clean it.
Clean the TPL cover like it says in EM 0205, TM 1-1680-377-13&P. You can
hand or machine wash the cover on the gentle cycle using liquid detergent, NSN
Putting on Your Helmet
1.
Hook your thumbs under the ear cups and spread the helmet slightly.
2.
Place the front edge of the helmet Frmly against the forehead.
3.
Rotate the helmet rearward and down onto your head.
4.
Press the helmet down Frmly with both hands on top of the helmet.
5.
Adjust the nape. When adjusting the nape straps, do not pull on the straps
simultaneously. Pull on one and then the other in a see-saw fashion for a snug Ft.
6.
Adjust the chin strap.
Visors sticking?
Go easy on
actuating
knobs
Keep
visor
tracks
clean
Don’t
shove
mike
and
boom
into
liner
Hand tight on
thumbscrew
Keep TPL clean
Keep straps
and retention
assembly
cloth clean
if you
spread
the helmet
too much
when
putting it
on, you’ll
weaken it,
and that
leads to
cracks.
do it like
this…
694.36-37.indd
1-2
8/4/10
11:29:32 AM
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