PS Magazine - MARCH 1977
PS, The Preventative Maintenance Monthly
ISSUE 292
MARCH 1977
1.
'
!f
F'rinstance,
just
loosenIng
the
filter's cover pLate Is not enough to
sHut off the reservoIr oIL flow. You've
got to pull the filter cartrIdge out of
DON'T FREt
tHe HousIng to work the shutoff valve .
.±²,:1³_´
-µ¶=•
IT,
LAD!
And you do not InstaLL a new cover
·
¸lL¹º
»¼½ ¾¿À
HAÁfÂMaSÃ WIÄÅ
.
k
.
Æ
ÇÈ"ÉÊ
;
_±
=:
ËiÌ hÍm
STRaIGHt±
•
pLate and preformed pac Mg a ong
-
±²
-;,
²
with cleanIng the fILtEr element. ±Ike
Working on your 5-ton
truck's crane hydraulic system is no
fun±when you find yourself wading
around in
70
gallons of oil.
This cAn happen if you don't know
about the autoMatic shutoff valve in
that filter mouNted on the back of
tHe
hydraulic oil reserv01r² ³ll ´8µ6
BY-P³ssiNg
wrecker's have this filter, and so do
most ´543¶series wreckers² It's not on
early model
²543 ³s
or any ´62' s or on
the ´8µ9 and ´246¶series 5¶ton
tractor ·recker
tRucks. ´f your wrecker
24
,
±
.
±
·
²
<
µ
It
says In T¶ 9-2320-260-20, you
i
±
³
²
.
´
µ ¶
'
¸
³
,
¹
repLace onLy those Parts that' re worn
do•esn't have a fILter, you have to draIn
or damaged.
º
the whoLe hydrauLIc tank.
A repair kIt, NSN 2·90-00¸0¹1-
WHen you Pull tHe cartridge out of
the fIlter HousIng, you trigger the
shutoff valve insIde. You wILL
get
some oIlºanywhere from » to 3
gallons¼so
you
need
a
container
Handy to catcH tHat mucH.
F´lµEr ¶nd ·¶¸KEµ¸ ´n K´µ
3101, Is not yet In T¶ 9-2320-211-
20½, but it Is lIsted In T¶ 9¸2320-260¸
20½
(Nov
72)
under
½art
No.
·70¹¹97.
Be quIck, too, wHen you're instaLLIng
tHe Jilter cartridge and cover. That
s¾utoff valve will open when you
¿atch it! THe valve may sticKÀand
sHove the cartrIdge inºand oil will
not woRk. ´f moRe tHan 3 gallOns of oil
come out of tHe reservoIr. And you
cÁmes out, pusH tHe cartridge back in
Have to Hold the cover tight agaInst
and pull it oUt again THis sHoulD
tHe filteR Housing whileÃou're puttIng
ReÄÅase tHÅ sHutoff valve.
tHe
4
coveR screws back In and gettIng
YoU get the straigHt poÆp on this
:em tigHt.
fiÄteR in T² 9¸2320¸260Ç20 (Èul 72),
ÉemembeR, wHÅn you'Re workIng
Êages ËÇ332 and 2-333, para 2¸22¹.
anywHere on the ÌRecker's Hydraulic
ÍUt you don't get tHe full pIcture
in
system¼and you don't want all of that
T² 9¸2320¸211Î20 Ïun 73). THose oil pourIng out of tHe reservoIRºyou
instRuctions on pages 2¸2»8 and
2¸2¹9,
can take ouÐ tHe filteR cartRidge to shut
paRa
2-296,
can give yoU a buÑ steeRÒ
off tHe oil.
25
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