PS Magazine - APRIL 1979
PS, The Preventative Maintenance Monthly
ISSUE 317
APRIL 1979
Before you purge anything, line up
aLL the goodies in your purge kit and
give
Them the hairy eyebaLl. Is
evEryThing that you are going To need
presenT and in good working order?
±ake the vaLve protecTion cap off
your niTrogen cylinder and
·
quickLy
fLick the cYLinder vaLve open and shut²
Open aNd slLut
vA±VE qUick±y-
·To b²³w
out
DUS´ ³r Waµ¶R
±his wiLL bLow any dusT or water ouT of
The vaLve seaT² If no³hing happens, the
Tank is empTy, or The vaLve sTem is
sTUck in Th´ cLosed posiTion² If you
smeLL sometHing, you're in troubLe
µecaUse niTrogen has no smeLL.
Mount the reguLator On the cylinder
And The hose on The reguLator² ¶ou¸LL
need
9/16
and
1
VS-in wrenches²
4
¹LowLy open tºe cyLinder vaLve unTil
The high-pressure gage needLe sTops
moving² ±he vaLve musT be completely
open To backseat properLy» ±he needLe
wiLL sTop aT the numµer teLLing the P¹I
of The gas inside of The cyLinder² ±his
shouLd be equaL To or near the service
¼ressure sTamp´d on The cYlinder,
½f YO¾r ¿reÀs¾re iÀ tOO ÁlOw, Get
aNOther gas cYLiNDer frÂà À¾¿¿lYÄ
(ÅeÆer drain the NitrOgeN ÇOttle
COmpletelY² Èeave at least
25
Éʽ tO
preÆenT bOTtle CONtaÃinatiONÄ)
If eÆerything iÀ
OK,
ÀlOwlY ÂËN
YÂur regulatOr ÆalÆe uNtil yO¾r lOwÌ
¿resÀure gage reGiÀterÀ
±0
ÉÊI² ÍÎeN
clOse the vaLve right awaY² (Íhis ClearÀ
water, dust, ÀpÏders, etC², Out of YOur
hOse, so theY donÐt get blOwn iNtO YOur
Ñ
fire cOnTrol instruÃent²)
²
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