PS Magazine - TB 43-PS-630

PS, The Preventative Maintenance Monthly

ISSUE 630

MAY 2005
PS Magazine - TB 43-PS-630 - Page 30 of 33
PS 630
MAY 05
57
M40-, M42-Series Masks…
PM
Keeps Your
Mask in Harness
Make your choice
comfortable
and secure by
harnessing
this PM…
•
Check the head harness'
elasticity
when
you
PMCS your mask. Gently
stretch the head harness
straps to make sure they
still have some spring. If
they don't, the head har-
ness will have trouble
keeping the mask tight
enough to seal. Your NBC
NCO needs to replace the
head harness.
•
Make sure the head
harness' elastic webbing
is on top and its seams
point out. If you have
the head harness inside-
out, the crosspiece rubs
and makes you a sore-
head.
•
Tighten the head harness straps so they
are snug, but not so snug that you can't
stick a finger under each strap. If the
straps are too tight, they will give you an
industrial-strength headache. Once you
have the straps properly snug, loosen
only the cheek straps to take off the
mask. Then when you put the mask back
on you need to tighten only the cheek
straps to be ready for action. Those saved
seconds could save your life.
Webbing on top with seams pointing out?
Gently stretch straps
to check for elasticity
•
Store your mask with
the head harness pulled
over the front of the
facepiece. That way
you can just stick your
face in the mask and
pull the harness back
over your head, saving
more precious seconds.
Pull head harness
over facepiece
for storage
Loosen only
cheek straps
when you
take off
mask
and what
do you call
this
series
of photos?
I call
eet
‘gas
mask on
too
tight’
!
eet ees
my new
master-
piece!
The harness for
your M40- or
M42-series mask
can make your
mask comfortable
and secure or it
can give you the
worst headache of
your life and ruin
your mask's seal
of protection.
630.56-57(C)
3/28/05
8:21 PM
Page 1
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