PS Magazine - TB 43-PS-580

PS, The Preventative Maintenance Monthly

ISSUE 580

MARCH 2001
PS Magazine - TB 43-PS-580 - Page 24 of 32
PS 580
MAR 01
45
n MWO has been kicking around the
Army for a couple of years now that will
keep the M40/M42 mask silicone rubber
of the outlet valve housing from pulling
loose further.
Unfortunately, many M40/M42s are
still waiting for MWO 3-4240-347-20-1
(Jun 98). It’s simple to check if your
masks have been modified, NBC NCOs.
Look at the outlet valve. If a zip tie has
been fastened around the valve, the
MWO’s been done.
No zip tie? Contact your local MWO
coordinator or SBCCOM logistics assis-
tance representative. They can get you the kit you’ll need to modify your masks.
The zip tie is easier to install if you pull it hand-tight before using the tensioner
tool to fully tighten it.
The tie should go against the face piece behind the drink tube nipple. If it’s any-
where else on the valve housing, the tie can’t prevent the housing from separating
from the facepiece.
When you put on the zip tie, remember to put the tab of the tie in the 6-9 o’clock
position. If you try to put it in the 12-6 position, the drink tube gets in the way.
M40/M42-Series Masks.
..
Faceforms
Throw away the faceforms. You
no longer need to store your masks
with the faceforms stuck inside.
Soldier and Biological Chemical
Command (SBCCOM) has decided
the masks do not need faceforms to
keep their shape during storage. The
word’s in SBCCOM Maintenance
Advisory Message (MAM) 99-05.
Teaching Tip
It’s difficult to see small cuts
and pinholes inside the face-
piece, particularly below the
side voicemitter. Tell your sol-
diers to slightly flex the face-
piece as they check for cuts.
That makes them easier to spot.
Obsolete Decon Kits
Turn in M258 and M280 decon
kits. They’re obsolete and have been
replaced by the M295 decon kit,
NSN 6850-01-357-8456, and M291
New M42 Carrier
The M42 has its own carrier now.
It’s larger than the M40’s and makes
it easier to store the M42. Order the
M42 carrier with NSN 4240-01-
399-3350.
Do not use the M42 carrier for the
M40, though. It lets the M40 shift
out of its proper storage position,
which can lead to damage.
FACEFORMS FADE FAST
580. 44-45 (C)
2/8/01
8:49 PM
Page 1
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