PS Magazine - AUGUST 1972
PS, The Preventative Maintenance Monthly
1972 SERIES, ISSUE 237
AUGUST 1972
PRESSURE VALVE CHANGE
FOR M3'S onlY
MWO 3-1040-204±45/1 Qui 70) gave
MWO 3±1040±214±45/1 (Feb 71) gIves
some portable flame throwers and port±
all M3's a safety heaD wIth a burst dIsc
abLe dIspersers an Improved pressure rated at 125 to 175 PS². The dIsc on the
tAnk valve.
orIgInal safety head Is rated at 525 to 625
The moD³´µ¶D pressure tank va·ve Is PS².
stamped "¸IquIdonIcs
¹¹75-200º»
on the
¼hIs MWO aLso gIves the M3 a quIck½
va¾ve body. Or "¸IquIdonIcs 1175±200¿ dIsconnect-couplIng assemb·y for the
Is on the valve body, and the capItal let±
agent tank and the MÀ hose, plus othEr
ter
"ºÁ
Is stamped on the hexagon goodIes. See
t
M3's updated manual
renchIng surfaces of the steel spool TM 3±1040±214±12 (Feb 72).
housIng assembLy.
The
oLd pressure tank valve wÂs
sCamped sImply: "¸IquIdonIcs 1175±200.¿
à º on the vaLve body or on the hex Nut
teLLs yoU your Äortable's pressUre tank
vaLve has been modIfIed.
The MWO applIes to alL portable
flame throwers wIth the oLd valve, anD to
alL portabLe dIspersers wIth serIal numÅ
bers 389±1143 through 389±2785, ÆnD alL
those usIng the old ¸IquIdonIcs vaLve.
The MWO Doesn't apply to older
have a pressure
CHECK YOUR
M3'S MWO
RECoRD
ARE Yours upDaTeD?
Çheck your portable's ÈÃ Form 2409,
ÉnD If the MWO's haven't been applIeD,
youÊd best nudge your support qUIck±lIke
... before all the free MWO kIts are gone
Ë
.
ON
y±ur m5 AGeNT
OISPfRsEr.
²ak³
SURE
Its ´gµn¶ ·¸¹º »¼d J½¾
Di±pe²³Er ´ECTµoN A¶E
¿ÀÁÂ
r·GHt,
ÃÄhÅÆwiÇÈ
ÉÊf ËÌLl-VÍÎVÏ ±PÐÑÒÓÔÕÖ
×ÌØÙlÚ Û
i
Ll
h·¸
ÜÝÞ
F²aM¹
ßàá âãä Ûåæ
ç
è
Bé »bêë ì± íîïN ¶ðñ
òóàôõö F÷øù úpûü.
To joIn the 2 assemblIÌs rIght: ¸Ine up
the notch on the neck fLange of the ageÍt
tank wIth the notch on the dIsperser's
nozzle fLange. See para 28I, TM 3-10Î0±
220±¹2 (May 63).
You have to lIne 'em Up, of course, be½
fore yoU Lock the tanK to Ïhe dIsperser
sectIon.
Ðf you dIscover ChIs handle problem af½
ter Ñhe DIsperser Is pressurIzed .
.. never,
ÒlIke never, try to lIne up the notches sIm½
ply by loosenIng the tank's clamp assemÓ
bLy. Ãgent wILÔ spew out at you from
around the clamp.
ý9
To lIne up the notches on a pressuÕIzed
M5, follow the depressurIzIng Info In TM
3±1040-220±12, para 36b(Ö) -(7), and the
re±assembly scoop In para 36b(9) -(13).
-
þ
1
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