PS Magazine - JUNE 1977
PS, The Preventative Maintenance Monthly
ISSUE 295
JUNE 1977
Go easy on the pumping when you
-
use the gas pump handle on your M49
Redeye traIner.
·
±f you pu²p out too much pressure
fro³ the low pressure reservoIr to the
hIgh pressure reservoIr, you can suck
In the dIaphrag² and make a repa´r
jObµ Watch the low¶pressure ga e
²eter on the TraIner¸ When you get
¹emInder
to new
guys:
You're
down to the yellow band
(20
PS± or
buIldIng
up
pressure
In
the
HP
less), you've got plenty of expansIon
º
reservoIr b» movIng gas to the
LP
spaCe to
¼
do ½he jobµ
¾
reserVoIr when the neeDle goes t¿ward
YELlOW
,.±²-³´µ
"O±
on the lowÀpressure gage. Áhe
other end of the scale, toward
"100¶·
Â
means you're rUnnInà out of room In
the
LP
reservoIrÄ
4
And, let the gyros run down before
you start pu²pIngµ
Åe²e²ber,
too,
that
the
M49
should
be
turned
In
quarterly
to
support ²aIn½enance for a Freon check
and trackIng and sIght alInement.
-±²³´µ¶·¸¹º
»¼½¾¿ÀÁÂÃÄ
.Å
A
Lot of engIne oIL_ ÆooLers are beIng
chÇnged when Èthey shouldn'½ be,
runnIng uÉ the tab aNd causIng extra
sweat and elBÊ grease.
Áhe coolers are changed along wIËh
½he engInes when there's a reporÌ
fro² the oIL analÍsIs lab of hIgh ²etaL
wear ÎeadIngs In an oIL sa²ÏLeµ
ResIsÌ the te²ptatIon, lads! Áhere's
a·
bIg dIfference be½ween ²e½aÐ parÑ
tIcÒeÓ you Ôcan see and feel and ²etal
²oleculesÕ that onLy the lab can detectµ
MetalÖ partIcles In tHe KIowa oIL
cooler, ×or example, are ØLIs½ed In para
5c25
of ÁM
5¸¹º520»228¼34
(Ùov
72)
as beIng ½he reason fÚr scrappIng an
oIl cooLer. Ùo sÛeat!
Üut a hIgh metal wear readIng Ýro²
the lab ²eans the oIl Is conta²Inated
wI½h
Þ
²etal molecules In par½sÀßerà
á
²IlLIonânot me½aL chIpsã
So, unless äou fInd chIps In an oIl
system, do not change the åIl Cooler.
Just draIn the oIl sys½e² and fIlL 'er up
agaInµ
Back to Top Back to Top
