PS Magazine - TB 43-PS-558
PS, The Preventative Maintenance Monthly
ISSUE 558
MAY 1999
PS 558
46
Clean hook-and-pile with brush
In the Field
Loosen the hood straps before put-
ting on or taking off the mask. Other-
wise, the straps can be ripped off and
the hood is ruined.
Faceforms are for the NBC room,
not the field. Faceforms should be used
only when masks won’t be worn for
more than 30 days. In the field, they
can damage the mask, get in the way
and are soon lost.
Use the outserts. They are like a
windshield for the eyelenses. If the
outserts are scratched up, they can be
quickly and cheaply replaced. But if
the eyelenses are scratched, the face-
piece must be replaced.
Get help with straps
Outlet valve cover
—Check that the
cover fits snugly. The cover holes that
fit on the valve body lugs round out or
tear through use and the cover won’t
stay on the outlet valve. Get a new
cover if necessary.
they block your vision. Your NBC NCO
can use pliers to bend the ends so they
touch the mask eyewalls.
Carrier
—If the hook-and-pile is
dirty, it can’t do a good job securing
the carrier flap. Wipe off any dirt with
a plastic brush.
Crosspiece face out?
Canister
—Look for dents. If a dent
is deeper than
1
/
4
inch or on the threads
or a seam, you need a new canister.
Cover holes too large?
Head harness
—Check that the
crosspiece on the back of your head
faces out. If it doesn’t, it will rub your
head raw. Pull on the straps to test their
tension. If they’ve lost their snap, get a
new head harness. That one won’t hold
the mask securely.
The best way to handle the straps is
to get help. That way you don’t have
to twist yourself into a pretzel to get at
the straps and there’s less strap jerk-
ing, which can rip them.
aaah!
i can breathe
great!
thanks
to
pm
!
don't let
poor pm
leave you
breathless
.
Outserts protect lenses
Optical inserts
—Make sure the in-
sert retainer ends don’t stick out so
Dents deeper than
1
/
4
inch?
Insert ends touching eyewall?
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