PS Magazine - AUGUST 1975
PS, The Preventative Maintenance Monthly
ISSUE 273
AUGUST 1975
Not every "field Fix± improves The
operation and mainTenance o² YouR
equipmenT.
SoMeTimes Fixing a
$2
parT ³Fixes± a
$±,000
iTem´ BuT good! IT
has to go To dePoT For overHaul´
µ'rinsTance,
some
S¶
HowiTzer
crewmen have been Filing or grinding
The PlungeR PoinT oFF THe azimuTH
deFlecTion kno· assembly´ ¸Hey Think
This'll
LeT
'em
Traverse The 'scope
FasTer´
µiRsT oFF, THe Panoramic TelescoPe's
OF²
¹iº»¼½
To
You
²or
teaRdown
mainTenance´ SeconD, Filing oFF THe
PoinT¾s
noT
tHe
a¿swer
FoR
Fast
sWinging 'scoPe acTion´
16
SteP 8, ¸aÀle
±-6
in Ch 1 to ¸Á
9²
±350²±17²10
(Âec
69)
has THe worD´
¸He Plunger clicks oFF everY
5
Mils iT's
TuRneD When THe aziMUTH de²lecTion
knob is in THe ÂIÃEC¸ PosiTion´ Äou
can'T use THe 'scoPe FoR THis oPeraTion
iF The pLUnger PoinT's missing´
ÅHen YoU Put The azimuTh DeFlec-
Tion knob in The INÂIÃECÆ PosiTion,
tHe PLunger is disengaged and YoU geT
a noÇcLick, sMooTh, FasT Èn' easY oPeRa-
Tion´
ÉMarT ¶Á is keePing YouR hands
and Tools ouT oF Places TheY don¾T
belong´
µoLloW The ¸Á and ask Questions
abouT FieLd Fixes ·e²ore you make ÊeË´
It saves downTiMe and PaRTs´
M551 SHERIDAN-
Al
R
CLEaN
-
eR
FILTEr fAcTS
Either you already hAVe a preÇair
Ìleaner
Í
on your SheridAn or you'll
Î
get
one as sooÏ as support lAys ÁÐÑ
9-
2350Ç23ÒÇ4ÒÇ5 on youÓ
WHEN
YOU
GET A
PRE±AIR
CLEANER .
..
. .² YOU'LL
NEED
THiS
NEW
FiLTER
ELEMENT
Ô
Õhe only triÌKy thing a·out this is
That you'll need
A
di²Ferent
²ilTer
element onÌe The preÇair Ìleaner has
·een put inÖ
Õhe eLement you need is NSN 294ÒÇ
ÒÒÇÒ52Ç6Ò33 (¶ /N 1×662983 )´
ÑrganizaTional MainØenanÌe on The
new ²ilter is ÌoVereÙ in ÚÁ 9Ç235ÒÇ
2ÛÒÇ2ÒÇ1 ÜÝe· 75Þ on pages 2ß128 and
2Ç129Ó
IF you haVe The old setÇup without
the preÇair Ìàeaner, stay with replAÌeá
ment ²ilTer NSN 294ÒÇÒÒÇâ82ß1264 as
lisTed on page 156onyourÕÁ9Ç235ÒÇ
23Òã24¶äåæ
FILTER FOLLOW THROUGH
To use dRY cleaning soLvenT oR mineRal
sPiriTs PainT Thinner and dRY WiTH low-
PressuRe air´
NoW You can FolLow THrough on
servicing THe FiLter on the eLecTRic FueL
PuMP
oF
Your
SHeriDan
Perç
sonneLè coolanT heaTers´
BuT noTHing TeLLs Yoé how To geT
êë anoTHeR gaskeT in case it gets Ruined
C
LEAN
When you Take The PumP aParT or
ThE fILTER
Where To geT anoTHeR sTrainer iF you
QUARtERLY
Find The one in The PumP is shoì´
So, heRe's THe good news: írder
ín Page
2²27
oF Your ÕÁ
9²2350³
GaskeT îÉN
5330-00²741²3774
and
±30-±0-´
ïµeb
75)
iT saYs to clean The
ÉTraineR
NÉN
±910³00µ679-97±1.
Filðer QuarteRlY´ ín Pñge
2-±77
iT saYs
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