PS Magazine - TB 43-PS-618
PS, The Preventative Maintenance Monthly
ISSUE 618
MAY 2004
PS 618
MAY 04
47
Puts Mask Out
Inside-Out
S
ome soldiers think they can get their masks really clean by turning them inside-
out to clean the insides. That does make for easier cleaning, but it also damages the
mask. So you end up with a very clean mask that may be worthless.
Cleaning your M40/M42 mask is pretty simple, so keep it simple. Remove the
hood, outserts, outlet valve cover and canister. Dip cheesecloth in clean water mixed
with the liquid soap your NBC NCO should have on hand. Wring the cloth almost
dry. Use the cloth to clean out all dirt inside and outside the facepiece. If necessary,
use the soft brush that’s part of the cleaning kit. If grease or oil are on the facepiece,
clean it off with isopropyl alcohol.
PS 618
MAY 04
46
M40/M42-Series Masks…
Don't
Screw Up
Lens
Carrier
Don't
Screw Up
Lens
Carrier
NBC NCOs try to install the
carrier without first loosening
the set screws so they don't
stick out. Then when the carrier
is slid into place, the screws cut
a divot in the black plastic
mount and eventually the
mount breaks.
To install the lens carrier,
first loosen the set screws until
they're flush with the carrier
mount block. Align the mount
block with the groove of the
mount frame and slide the carri-
er into place.
After adjusting the carrier up
or down to the proper position,
fold the lens carrier to one side
and tighten the set screw just
until it makes contact with the
mount frame. Don't tighten the
screw any more or the lens car-
rier could pop out during use.
Fold the lens carrier to the other
side and tighten the other set
screw. You're done.
M40/M42-
series mask
prescription
lens carrier
mounts are
being screwed
up because NBC
NCOs forget
the setscrews.
Loosen set screws until they’re
flush with mount block or…
…screws will cut a divot in plastic
mount and mount will break
After you’re through cleaning, dip a
clean cheesecloth in clean water and
wring it almost dry. Then wipe all the
soap out with the cloth.
Either wipe the mask with a dry
cloth or let it air dry for 24 hours.
Make sure the mask is completely dry
before you stow it.
I’m
almost
dry. gimme
another hour!
hey, are
you ready
for
storage?
you
don’t
need to turn
me inside-
out for
cleaning!
stop
that!
618. 46-47 (C)
3/29/04
10:45 AM
Page 1
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