Eaton Char-Lynn Manual

Contents

2 EATON Char-Lynn Power Steering Control Unit Series 5 Parts and Repair C-STCU-TS002-E1 November 2006Series 5SteeringControl UnitTable of ContentsIntroductionThis manual provides serviceinformation for Char-Lynn ®Series 5 Steering Control Units.Step by step instructions forcomplete disassembly, inspec-tion and reassembly of the con-trol unit are given.The following recommendationsshould be followed to insuresuccessful repairs.• Most repairs require theremoval of the control unitfrom the vehicle.• Cleanliness is extremelyimportant.• Clean the port areas thor-oughly before disconnectingthe hydraulic lines.• Plug the control unit ports andcover open hydraulic linesimmediately after they havebeen disconnected.• Drain the oil and clean theexterior of the control unitbefore making repairs.• Wash all metal parts in cleansolvent.• Use filtered, moisturefreecompressed air to dry theparts. Do not wipe them drywith paper towels or cloth –lint in a hydraulic system willcause damage.• Always use new seals whenreassembling hydraulic controlunits.• Lubricate new rubber sealswith a petroleum jelly beforeinstallation.• Torque all bolts over gasketedjoints, then repeat thetorquing sequence to makeup for gasket compression.After all repairs are complete itis essential to verify the accura-cy of control unit repairs on anauthorized test stand.Introduction ......................................................................................................................................................................................................2General InformationOrdering Parts ..........................................................................................................................................................................................3Tools ........................................................................................................................................................................................................3Round and Square Housing with Side PortsExploded View..........................................................................................................................................................................................4Parts List ..................................................................................................................................................................................................5Disassembly ............................................................................................................................................................................................6Reassembly..............................................................................................................................................................................................7Round Housing with End PortsExploded View..........................................................................................................................................................................................8Parts List ..................................................................................................................................................................................................9Disassembly ..........................................................................................................................................................................................10Reassembly ............................................................................................................................................................................................112-Piece Shaft Seal Assembly ..........................................................................................................................................................................12