PS Magazine - TB 43-PS-595
PS, The Preventative Maintenance Monthly
ISSUE 595
JUNE 2002
M40-, M42-Series Masks…
When
Must
Canisters
Be
Changed?
Dear Half-Mast,
How often must NBC NCOs
change the canisters on the
M40/M42-series masks in
order to protect soldiers from
agents like anthrax?
SFC J.P.
Dear Sergeant J.P.,
If you’re operating where there have been no chemical attacks and no
blood agent CK (cyanogen choloride) threat, change the canister annually.
In an area with no confirmed chemical attacks but a CK threat in a climate
that’s cold and humid or warm and moderately humid, change the canister
annually. Change it every 39 weeks when it’s hot and dry. Change it every
10 weeks when it’s hot and humid.
For units that have experienced chemical attacks, change the canister
every 30 days.
Whenever a soldier has trouble drawing breath through the canister, it
should be changed.
For more information, see FM 3-4,
NBC Protection
. If you don’t have a
copy, your pubs clerk can order it with IDN 110736 and PIN 058794.
SB 3-30-2,
Canister and Filter Elements (Serviceability Lists)
, has info on
which canisters are still good. It’s part of EM 0045, the CD-ROM that
contains most of the NBC TMs. Unopened canisters have a 5-year renewable
shelf life.
PS 595
JUNE 02
56
M17-Series and M12A1 Decons…
this m17
checks out…
guess I’m done
for the day.
hey! Hey!
what about
me!? pumps
need PM,
too!
Your M17 or M12
decon will run
dry in the field if
you forget these
PM points for the
65-gpm pump.
Before
you go to the field,
check
both
the inlet and outlet
hose connectors for gaskets. If a
gasket is missing or cracked, the
pump can't build up enough pres-
sure to pump water.
In the field,
don't fasten either
hose more than hand-tight. If you
overtighten either hose, you'll
strip the threads. That's the last
time you'll be able to fasten that
hose tight.
Your repairman
can order new
gaskets with PN
13230E5325 from
Schleyer Pump,
(765) 643-3334.
Gasket
missing or
cracked?
Don’t screw on hoses
more than hand-tight
595. 56-57 (C)
4/22/02
11:31 AM
Page 1
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