September 2016 Service and Repair ManualHydraulic PumpPart No. 1272222 GS-84 • GS-90 69Hydr aulic Pump6-1 Lift/Steer Pum p6-1Lift/Steer PumpNote: 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.How to R emove the Lift/Steer Pum pHow to Remove the Lift/SteerPump1 Locate the three hydraulic tank valves at thehydraulic tank. Close the valves.open closedComponent damage hazard.The engine must not be startedwith the hydraulic tank shut-offvalves in the closed position orcomponent damage will occur. Ifthe tank valves are closed,remove the key from the keyswitch and tag the machine toinform personnel of thecondition.Note: The hydraulic tank shutoff valves can beaccessed from under the hydraulic tank tray.2 Release the latches on the engine tray andfully slide the engine tray out.3 Insert a 6 inch / 15 cm screwdriver or rod intothe engine tray lock hole located near theengine tray roller wheels to prevent the enginetray from moving.4 Tag, disconnect and plug the hydraulic hosesfrom the lift/steer pump . Cap the fittings onthe pump.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.5 Remove the pump mounting fasteners.Carefully remove the pump.Component damage hazard. Besure to open the two hydraulictank valves and prime the pumpafter installing the pump.
