REV CSection 4 • Repair ProceduresJuly 2007Part No. 72863 GS-3390 • GS-4390 • GS-5390 4 - 1157 Tag, disconnect and plug the hoses from thedrive motor. Cap the fittings on the drive motor.Bodily injury hazard. Sprayinghydraulic oil can penetrate andburn skin. Loosen hydraulicconnections very slowly toallow the oil pressure todissipate gradually. Do notallow oil to squirt or spray.8 Support and secure the yoke and drive motorassembly to a lifting jack.9 Remove the cotter pin from the tie rod clevispin.Note: Always use a new cotter pin when installinga clevis pin.10 Remove the retaining fastener from the steercylinder rod end pivot pin. Remove the pivotpin.11 Remove the retaining fastener from the loweryoke pivot pin.12 Place a rod through the pin and twist to removethe pin.13 Repeat steps 11 and 12 for the upper yokepivot pin.Steer Axle Components9-1Yoke and Drive MotorHow to Remove the Yokeand Drive MotorNote: When removing a hose assembly or fitting,the O-ring on the fitting and/or hose must bereplaced and then torqued to specification duringinstallation. Refer to Section Two,Hydraulic Hoseand Fitting Torque Specifications.1 Block the non-steer wheels and center a liftingjack under the drive chassis at the steer end ofthe machine.2 Loosen the wheel lug nuts. Do not removethem.3 Raise the machine approximately2 inches / 5 cm. Place blocks under the chassisfor support.Crushing hazard. The chassis willfall if it is not properly supported.4 Remove the wheel lug nuts. Remove the tireand wheel assembly.5 Remove the hose clamps retaining fastenersfrom the drive motor guard. Remove the hoseclamps.6 Remove the retaining fasteners from the drivemotor guard. Remove the drive motor guardfrom the yoke.
