Case IH A8010 - Torque - Standard torque data for hydraulic connections

INTRODUCTION
Torque-Standardtorquedataforhydraulicconnections
Harvester
ANZ---APAC---LA---MEA---NA---WE
Generalinformation
•
Hydraulicconnectionsrequireaminimumassemblytorqueinordertoprovidezeroleakageatratedpressurewith
adequatefatigueresistance.Over-torquingofahydraulicconnectioncanalsoleadtoleakageorfailure.Forsome
connections,CASEIHrequiresadifferenttorquevaluethanislistedintheISOandSAEstandards.
•
Thetorquevaluesinthisdocumentshouldbeusedwheneverpossibleorapplicable.
NOTICE:Alwaysfollowtheinstructionsinthismanualforspecictorquevalueswhenyouservicecomponents.
Theinformationinthissectionisforgeneralguidanceonlywhenaprocedurecontainsnospecictorquevalue.
Tolerance
•
Thetoleranceforalltorquevaluesis±10%.Thistolerancemustincludeallassemblyvariation,notonlythetorque
wrenchrepeatability.
Lubrication
Applicationofgreaseorotherlubricantstohydraulicconnectorsshouldbeavoided.Ifcleanhydraulicoilisalready
ontheconnection,itisnotrequiredtoremovetheoil.Generally,applicationofgrease:
•
Maycauseasignicantchangeinthetorquerequiredtoproperlytightentheconnection.
•
Mayreducetheconnection’sresistancetovibration.
•
Excessivegreasemaydisplaceanelastomersealduringtightening.
•
Greaseextrusionwhenconnectionistightenedmaybemistakenforleakage.
CASEIHproductsgenerallyuseO-RingBoss(ORB)connectorsthathaveTeon™-coatedO-rings,eliminatingthe
needforO-ringlubricationduringinstallation.Forconnectionswhicharemadeintoaluminummanifoldsorwithstain-
lesssteelconnectors,itmayberequiredtoapplyalubricanttopreventgalling.
UseofLOCTITE®andotherthread-lockingcompoundsisprohibited.Thesecompounds:
•
Maycauseasignicantchangeinthetorquerequiredtoproperlytightentheconnections.
•
Reducetheserviceabilityofthejoint.
•
MaypreventtheO-ringfromproperlysealingifthecompoundgetsontheO-ring.
4806361204/05/2018
13