Section 4 • Repair ProceduresREV ASeptember 2016Part No. 227123 GRC 4 - 278-1Drive BrakeHow to Remove a Drive BrakeNote: When removing a hose assembly or fitting,the fitting and/or hose end must be torqued tospecification during installation. Refer to Section 2,Hydraulic Hose and Fitting Torque Specifications.1 Block the wheels at the steer end of themachine.2 Remove the cotter pin from the wheel castle nutat the non-steer end of the machine.Note: Always replace the cotter pin with a new onewhen removing the castle nut.3 Loosen the wheel castle nut. Do not remove it.4 Center a lifting jack under the drive chassis atthe non-steer end.5 Raise the machine approximately2 inches / 5 cm. Place blocks under the chassisfor support.Crushing hazard. The chassiscould fall if not properly supported.6 Remove the wheel castle nut. Remove thewheel.7 Tag, disconnect and plug the hydraulic hosefrom the brake. Cap the fitting on the brake.Bodily injury hazard. Sprayinghydraulic oil can penetrate andburn skin. Loosen hydraulicconnections very slowly to allowthe oil pressure to dissipategradually. Do not allow oil to squirtor spray.8 Place a lifting jack under the brake for support.9 Remove the fasteners that attach the brake tothe drive chassis. Remove the brake.Crushing hazard. The brake willfall if not properly supported whenthe mounting fasteners areremoved.Torque specificationsBrake mounting fasteners, dry 75 ft-lbs102 NmBrake mounting fasteners, lubricated 56 ft-lbs76 NmNon-steer Axle Components
