Service Manual February 2017Steer Axle Components140 S-80 • S-85 • S-80X Part No. 1259369GT11-2Drive MotorsHow to Remove a Drive MotorComponent damage hazard.Repairs to the motor should onlybe performed by an authorizeddealer.Component damage hazard. Thework area and surfaces wherethis procedure will be performedmust be clean and free of debristhat could get into the hydraulicsystem and cause severecomponent damage. Dealerservice is recommended.Note: When removing a hose assembly or fitting,the O-ring (if equipped) on the fitting and/or hoseend must be replaced. All connections must betorqued to specification during installation. Refer toSpecifications, Hydraulic Hose and Fitting TorqueSpecifications.1 Extend the axles.2 Remove the drive motor access covers fromboth sides of the inner axle.3 Tag, disconnect and plug the hydraulic hosesfrom the drive motor. Cap the fittings on thedrive motor.Bodily injury hazard. Sprayinghydraulic oil can penetrate andburn skin. Loosen hydraulicconnections very slowly to allowthe oil pressure to dissipategradually. Do not allow oil tosquirt or spray.4 Remove the drive motor mounting fasteners.5 Slide the drive motor shaft out of the drive hub,and remove the drive motor from the machine.11-3Drive HubsHow to Remove a Drive HubNote: When removing a hose assembly or fitting,the O-ring (if equipped) on the fitting and/or hoseend must be replaced. All connections must betorqued to specification during installation. Refer toSpecifications, Hydraulic Hose and Fitting TorqueSpecifications.1 Remove the drive motor. Refer to RepairProcedure, How to Remove a Drive Motor.2 Loosen the wheel lug nuts. Do not removethem.3 Center a lifting jack of ample capacity underthe non-steer axle.4 Raise the machine approximately 6 inches /15 cm and place blocks under the chassis forsupport.5 Remove the wheel lug nuts, then the tire andwheel assembly.6 Place a second lifting jack under the drive hubfor support and secure the drive hub to thelifting jack.7 Remove the drive hub mounting fasteners thatattach the drive hub to the axle. Remove thedrive hub.Crushing hazard. The drive hubcould become unbalanced andfall if not properly supported byan overhead crane or liftingdevice when removed from themachine.Note: Do not re-use the drive hub mountingfasteners. Genie specifications require the use ofnew fasteners.
