PS Magazine - AUGUST 1975
PS, The Preventative Maintenance Monthly
ISSUE 273
AUGUST 1975
1±
Shaking may be
OK
for medicine, milk shakes and some cocktails, but it
reaLly doesn't do much for the canisters on your
M24, M25,
or
M25Al
protective masks.
SUre the TM±s on the masKs say to give the canisters a shake to test for the
rattle of Loose particles inside. Then, if a roll of Particles results, ²he canister±s
no good. However³ new inspection criteria make it easier to decide when to
repLace the canisters by taKing the shakes out of inspections´
Now, you tank and aircraft
CBR
types repLace the canisters on the masks
only for major defects such as rust or mechaµical damage´
So, during your next scheduLed operator
PM,
check these critical areas´
±²
Eye the canister nozZle for
damage, heavy Rust oR Loose
connectIoN wItH the canister.
CRacks, bReaks oR otheR damage
oR deNts oveR
V4
inch deep± D²nts
undeR
V4
inch deeP are not coN-
sideRed defects±
³ust oR pIttiNg oveR LaRge areAs
of the canIsteR body´
OveR
10
PeR cent of tHe seams oR
joINts coveRed by coRRosion, pItµ
tINg oR scaLe Rust¶
VaLve disc faILs to coveR the
entiRe oP·nINg at the INLet end of
the caNIsteR.
That's It¸ ShakINg Is ¹ut¸ ºs loNg
as the caNIsteR lot »UMbeR Is go¹¼
iN SB
3-30-2,
ServIcea½IlI¾y ¿ists
foR ÀRotectIve Áask ÂaNIsteRs aN¼
FIlteR ÃÄeMen¾s (JuL
7±)²
aN¼ No
maÅor defects aÆe foUNd duRiNg
iNsPectioN, tHe caNIsteÆ Is Usable¸
a
n€w
T
on the masks will Have the new inspection
criteriA¶·¸tiL
then, get
a
rNPy Of-SB 740±9²³120´Stoµage SeµvIEeability StandaµD
FOr
¶µotecTIve MasKs
(All
I¹ems)
an· ¸ncillaµY
º»ems (¼½g
¹º). »his ¼ub has the new ½n
s
¼
e
ct
ion
mateµial and moµe inF¾ on the ¿asKsÀ ÁÂ'll save you lots ÃÄ time
anD
eÄÄoµt
¾uR¿ng
youµ next ÅnspeÆtion.
±³
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