Part No. 122985 S-80 • S-85 • S-80X 3 - 57Section 3 • Scheduled Maintenance ProceduresFebruary 2012E-1Test or Replace theHydraulic OilGenie specifications require that this procedure beperformed every 2000 hours or every two years,whichever comes first.Replacement or testing of the hydraulic oil isessential for good machine performance andservice life. Dirty oil and suction strainers maycause the machine to perform poorly andcontinued use may cause component damage.Extremely dirty conditions may require oil changesto be performed more frequently.Note: Before replacing the hydraulic oil, the oil maybe tested by an oil distributor for specific levels ofcontamination to verify that changing the oil isnecessary. If the hydraulic oil is not replaced atthe two year inspection, test the oil quarterly.Replace the oil when it fails the test.Note: Perform this procedure with the boom in thestowed position.Note: When removing a hose assembly or fitting,the O-ring (if equipped) on the fitting and/or thehose end must be replaced. All connections mustbe torqued to specification during installation.Refer to Section 2,Hydraulic Hose and FittingTorque Specifications.1 Remove the fuel tank. Refer to RepairProcedure 9-1,How to Remove the Fuel Tank.open closedChecklist E Procedures2 Models without hydraulic tank shutoff valves:Remove the drain plug from the hydraulic tankand completely drain the tank into a suitablecontainer. Refer to Section 2,Specifications.Models with hydraulic tank shutoff valves:Close the two hydraulic tank valves located atthe hydraulic tank.Component damage hazard. Theengine must not be started with thehydraulic tank shutoff valves in theCLOSED position or componentdamage will occur. If the tankvalves are closed, remove the keyfrom the key switch and tag themachine to inform personnel of thecondition.3 Remove the drain plug from the hydraulic tankand completely drain the tank into a suitablecontainer. Refer to Section 2,Specifications.4 Tag, disconnect and plug the two suction hosesthat are attached to the hydraulic tankshutoff valves.5 Disconnect and plug the T-fitting located at thereturn filter with the two hoses connected to it.Cap the fitting on the return filter housing.6 Disconnect and plug the supply hose for theauxiliary power unit. Cap the fitting on thehydraulic tank.
