Case IH OPTUM 270 CVT - Hydraulic Connection Torque Data

INTRODUCTION
Torque-Standardtorquedataforhydraulicconnections
Generalinformation
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Hydraulicconnectionsrequireaminimumassemblytorqueinordertoprovidezeroleakageatratedpressurewith
adequatefatigueresistance.Over-torquingofahydraulicconnectioncanalsoleadtoleakageorfailure.Forsome
connections,CASEIHrequiresadifferenttorquevaluethanislistedintheISOandSAEstandards.
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Thetorquevaluesinthisdocumentshouldbeusedwheneverpossibleorapplicable.
NOTICE:Alwaysfollowtheinstructionsinthismanualforspecictorquevalueswhenyouservicecomponents.
Theinformationinthissectionisforgeneralguidanceonlywhenaprocedurecontainsnospecictorquevalue.
Tolerance
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Thetoleranceforalltorquevaluesis±10%.Thistolerancemustincludeallassemblyvariation,notonlythetorque
wrenchrepeatability.
Lubrication
Applicationofgreaseorotherlubricantstohydraulicconnectorsshouldbeavoided.Ifcleanhydraulicoilisalready
ontheconnection,itisnotrequiredtoremovetheoil.Generally,applicationofgrease:
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Maycauseasignicantchangeinthetorquerequiredtoproperlytightentheconnection.
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Mayreducetheconnection’sresistancetovibration.
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Excessivegreasemaydisplaceanelastomersealduringtightening.
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Greaseextrusionwhenconnectionistightenedmaybemistakenforleakage.
CASEIHproductsgenerallyuseO-RingBoss(ORB)connectorsthathaveTeon™-coatedO-rings,eliminatingthe
needforO-ringlubricationduringinstallation.Forconnectionswhicharemadeintoaluminummanifoldsorwithstain-
lesssteelconnectors,itmayberequiredtoapplyalubricanttopreventgalling.
UseofLOCTITE®andotherthread-lockingcompoundsisprohibited.Thesecompounds:
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Maycauseasignicantchangeinthetorquerequiredtoproperlytightentheconnections.
•
Reducetheserviceabilityofthejoint.
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MaypreventtheO-ringfromproperlysealingifthecompoundgetsontheO-ring.
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