Case 590SN - STC Disassembly Action; Seal Replacement Instructions Inspection

INTRODUCTION
STC®disassemblyaction
NOTICE:Donotusethedisconnecttooltopryonthe
parts.Pryingcanresultindamage.Insertthetoolstraight
intotheconnection.Theproperconnectionanddiscon-
nectionofSTC®partsisoutlinedlaterinthissection.
1.Releasepressurefromthehydraulicsystempriorto
disconnectingcomponents.
2.Someuidmaystillbeinthesystem.Minimizeuid
lossbydrainingtheuidfromsystemcomponents
priortodisconnection.
3.Priortodisconnection,cleantheareaaroundthet-
tingswithacleancloth,Orusinganairguntoblowdirt
anddebrisfromthereleasesleevearea.
4.Tohelpavoidthereleasesleevefromtearing,create
an(forthereleasesleeve)insertiongapbymovingthe
sleeveinthereleasedirection.Thiscanbedoneeither
byhandorbyusingasingleprongofthereleasetool.
5.AstheSTC®tool(1)isinsertedbehindtherelease
sleeve(2),thesteelinsertpushesthelatchingring
forwardintoagrooveinthefemalehalfI.D.,allowing
thetwohalvestobepulledapart.Thethicknessof
thetoolmovesthesleeveforwardfarenoughtomake
thedisconnection,sopryingsidewayswiththetoolis
unnecessary
RAIL17TLB0465AA10
RAIL17TLB0465AA11
RAIL17TLB0467AA12
Sealreplacementinstructionsinspection
•
InspectmatingSTC®ttingstoensuretheyarein
goodcondition,cleanandfreeofcontaminants,nicks,
scratches,atspots,etc.
•
ChecktheLatchRing(C)toensurethatitisinproper
positioninthefemaleSTC®connectorpriortoinstalla-
tionorconnection.
•
ChecktheO-Ring(A)toensureitisnotcutorotherwise
damagedpriortoinstallationorconnection.
•
ChecktheBack-UpRing(B)toensureitisnotdam-
aged.VerifythatitisatthefrontoftheO-Ringgroove
priortoconnectionthetting.
RAIL17TLB0016AA13
•
IfanydamageisdetectedoneitheroftheO-Ring,
Back-UpRingorLatchRing,replacethembyfollowing
theseprocedures:
1.CarefullyremoveO-Ring(A)andBack-UpRing(B)
withanO-Ringpickwithoutdamagingtheinterior
surfacesofthetting.
2.Inspecttheinteriorsurfacesandgroovesofthet-
tingandensurethattheyarefreeofforeignmaterial
ornicks,scratches,dents,etc.
3.Ifundamaged,cleanthettingandinstallthe
Back-UpRing(B)atthefrontoftheO-Ringgroove.
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