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4300Catalog Assembly/Installation EO-2Assembly Installation EO-2TroubleshootingGuide Connecttubeandnuttofittingbody.Holdingthebodyrigid, Problemswithbitetypehydraulicfittingsaremostoftentraced tightennutwithawrenchuntilresistanceisfelt.Continueturning tofaultypre-set/assemblyprocedure. thenutapproximately1/6to�turns(=1to11/2flats)tothe samepositionasitwaspriortodisassembly. Problem/ Iftheassembledpositionwasmarked,reassembleuntilthe ProbableCause Remedy marksmatch.Toachievethenecessaryassemblingforce,usean additionalwrenchleveragefortubeO.D.'s20mmandlarger. Tubenotbottomed Thetubeendisnotinfirmcontact withthefittingbodyatassembly.The tubingwasnotcompletelyinserted intothethroatofthefittingbodyuntil itbottomedout.Failuretobottom outthetubingagainstthetubestop ofthefittingbodyduringthepreset- tingprocedurewillallowthetubeto travelforwardwiththeferruleresult- inginashallowbite.Thisassembly shouldbescrapped. Shallowbite Afterpresetting,inspecttoseethat thegapbetweenthebiteringand thesealingringisclosed.Afailure Caution:Impropertighteningmayreducethesealreliability,pres- toachieveaclosedgapcanbe surecapabilityandthevibrationresistanceoftheconnection. tracedtothenutnotbeingtight- enedenough.Thisassemblycanbe Re-AssemblywithReplacementofSealing reworkedbycompletingtheassem- Ring(DOZ) blyinstructionsasindicatedinthe 1. Afterthenuthasbeenloosened,thesealingringcanbe catalog.Utilizationoflubricationand pulledoffthetubeend.Itmustbecheckedfordamageand wrenchelongationmaybeneces- replacedifnecessary. saryforlargersizes. 2. Pushnewsealingringontothetube,withmetalinnercone DamagedSeals Checksealingareaforcontamina- facingtheretainingring. tionsuchaschips,zincparticlesor 3. Re-installusingtheinstallationprocedurespreviously otherdirt.Alsochecktheinnercone coveredinthissection. ofthefittingbodyandtubingfor damage.ReplaceDOZsealingring ifnecessary. FatigueCrack Ensureproperassemblytechniques atBite areutilized.Utilizelubricationand wrenchelongationforlargersizes. Checkthatthegapbetweenthe sealingringandbiteringareclosed. FatigueCrackat Checkthattheapplicationdoesnot Step1 Step2 RearShoulderof haveexcessivevibration.Utilize BiteRing rigidclamping,tensionpipingor hoseassembliesifrelativemove- mentsareevident. DistortedFM Utilizeasplitdienutbackupplate FunctionalNutat forpresettingof35Land42L HydraulicPre- functionalnuts. Assembly TableT26--EO-2troubleshootingguide T33 ParkerHannifinCorporation TubeFittingsDivision Columbus,Ohio http://www.parker.com/tfd
Goodyear Rubber Products
