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4300Catalog Assembly/Installation FerulokAssembly Pre-SetInspection Pre-settingwithHyfersetToolorHydra-Tool AllFerulokfittingpresetsmustbedisassembledandinspected Pre-settingwithhydraulicequipment(HyfersetorHydra-Tool) forproperferrulepre-setbeforefinalinstallationforservice.The ispreferredfor fittingslargerthansize8orlargeproduction followingdetailedinspectionproceduresmustbefollowedregard- quantitiesinanysizes. lessofthemethodusedtopre-settheferruletothetube.(Refer ForfullinstructionontheuseoftheHyfersetTool(seeFig.T34), toFig.T33forthefiveinspectionpointsdiscussedbelow). pleaserefertoBulletin4393-B1,whichisincludedwitheach 1.Aridgeofmetal(A)hasbeenraisedabovethetubesurface shipmentoftheHyfersetKit#611049C. C B E Fig.T34�Hyfersettool A D Fig.T33�Ferulokpresetinspectionpoints Installation Useoneofthefollowinginstallationprocedures,dependingon thetoolingusedearliertopre-settheferruletothetubing. toaheightofatleast50%ofthethicknessoftheferrule's 1. Fittingbodyusedtopre-setferrule�Ifthefittingbody leadingedge,completelyaroundthetube. wasusedforferrulepre-set,re-tightenthenuttothesame 2.Whiletheleadingedgeoftheferrulemaybecoinedflat(B) fittingbodyusedearlierinthepre-set.Tightenthenutuntil thereisaslightbowtothebalanceofthepilotsection(C). asuddenandnoticeablewrenchresistanceisevident. 3.Thetailorbackendoftheferruleissnugagainstthetube Fromthispoint,tightenthenutanadditional (D). 1/6to1/4turn.(Analternativemethodistotakethenutto 4.Thereisaslightindentationaroundtheendofthetube(E) thefinger-tightposition,thenwrench-tightenanother thatindicatesthetubewasbottomedinthetoolorfitting 1/3to1/2turn).FNUcapsfollowthistighteningprocedure duringpre-setting(ifevidenceofthiscompletecontactisnot also. visibletheferrulemaynotbeproperlypre-set). 2. Hyferset,Hydra-ToolorFerulsetToolusedtoPre-set 5.Avoidrotatingtheferrule.Steelferrulesshouldnotbecapable Ferrule�Ifoneofthesetoolswasusedforferrulepre-set, ofmovingbackandforthalongthetubebeyondthebitearea selectanyappropriatefittingbodyandlubricateitsthreads. (astainlesssteelferrulewillmovemorethansteelbecause Conductre-tighteningfollowinganyoneofthetwometh- ofit'sspringbackcharacteristics). odsdescribedinprocedure1above. 3. Swivelnutassemblyprocedure(R6BU,C6BUand Caution:Wrenchtorqueshouldneverbeusedasthegauge S6BU)�Forfinalassemblyofswivelnut,a3/4turnfrom forreliableFerulokpre-setand/orassembly.Thereliabilityof fingertightisrequiredforallsizes. thepre-setandassemblyofbitetypefittingsisdependenton theferruletravelingaprescribeddistanceintothetaperedfit- tingthroatinordertobiteintothetubeandeffectastronggrip andseal. T24 ParkerHannifinCorporation TubeFittingsDivision Columbus,Ohio http://www.parker.com/tfd
Goodyear Rubber Products
