PS Magazine - TB 43-PS-412
PS, The Preventative Maintenance Monthly
ISSUE 412
MARCH 1987
M3A4 Smoke Generator .±
Check Air Check Valve
NO SMOKE? COULD BE A
FAULT' AIR CHECK VALVE
ON THE FOG OiL PUMP -
tHE VALVE 80D±²S NO
GOOD. CHECK iT our
LiKE SO:
Take thE valve Assembly of ±he pump.
S±ick your Fnger-or the eraser end o²
a PnciL-in ±he bot±om o² ³he valve and
±Ry ±o ±uM ±he disk re±´iner.
RE²Ov³
Th³ ´iµ
chEcK v´lvE
¶uµN disc
µET´iNEµ
wITh fINgEµ·
¸f iT ¹uµNs,
¹hE v´LvE
bOdy's B´d
I² ±he rµ±ainer tu¶s, ge± a new valve
body, NSN 10·¸¹¸953¸462. ºu± ±he
old par±s-disk, re±ainer and snap ring
³
´
±he new By. T» ¼g ±he re½er.
¾no±her bad body? Ke¿p ±eÀ±iÁg un±iÂ
you ge± a gooD body-one ³ha± won'± le±
±he re±ainer ±UM.
When you've go± a valve ±ha±'s
µk³
re±aiÁer won'± ±uÃ-±es± i± Under oÄraÅ
±ion. ºu± ±he valve back
´
±he pump and
Run ±he Æ3¾4 Çr 15 mÈÁu±esÉusing Êg
oilË o² coUrse.
¶
±he Æ3¾4 smokes
µk,
±he air check vaÌve's
µk·
ÍU± i² ±here's Îi±±Îe or no smoke, ±ag
±he pump deÏc±ive and ±uà i± in.
5¸
ma¹ º7
Wa±ch Ðr ±hese ±roubÌe spo±s ÑhiÎe
ÒÈng care o² and usiÁg your Æ 17¸series
mask, oÄra±ors. They'll save your mask
Óom dRy ro± and a bad seal and yoU
Óom a bad chiÌÌ.
bU±±ons. Ô² you mÈss jus± one, your mask
has Ìos± i±s seal.
HOÕÆake sure ±he hoÖ covers ±he
assembly cover×excep± when i±'s ØÙoÑ
L.:±²³´
Óe¿zing.
»
Óeezing Ñea±her, keep ±he
Úvori±e hiding spo±s. Û² you don'± keep
i± clean, mildew ge±s a Ço±hold and dry
rܱ's on i±s wayÝ
ma¹ º7
hÞ ØÌow ±he cover. Tha± preven±s yoUr
brea±h's mois±ure Óom making your shiß±
we± and chilÂy.
51
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