Part No. 48412 Genie S-60 & Genie S-65 4 - 39Service Manual - Second Edition Section 4 - Scheduled Maintenance ProceduresD-2Change or Recondition theEngine Coolant- Gasoline/LPG ModelsReplacing or reconditioning the engine coolant isessential to good engine performance and servicelife. Old or dirty coolant may cause the engine toperform poorly and continued use may causeengine damage. Extremely dirty conditions mayrequire coolant to be changed more frequently.Beware of hot engine parts andcoolant. Contact with hot engineparts and/or coolant will causesevere burns.Perform this procedure with theengine off and cooled.1 Put on protective clothing and eye wear.2 Disconnect the coolant return hose at theradiator and drain the coolant return tank into asuitable container.3 Slowly remove the radiator cap from theradiator.Bodily injury hazard. Allow anypressure to dissipate graduallybefore removing the radiator cap.D-1Test or Replace the Hydraulic OilReplacement 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 often.The machine uses Dexronequivalent hydraulic oil. Beforereplacing the hydraulic oil, the oilmay be tested by an oil distributorfor specific levels of contaminationto verify that changing the oil isnecessary. If the hydraulic oil isnot replaced at the two yearinspection, test the oil quarterly.Replace the oil when it fails thetest.Perform this procedure with theboom in the stowed position.1 Remove the hydraulic tank. See RepairProcedure 11-2, How to Remove the HydraulicTank.The pump needs to primed beforestarting the engine. See RepairProcedure 11-2, How to Removethe Hydraulic Tank.Component damage hazard. Besure that the hydraulic tank shutoffvalves are in the OPEN positionbefore priming the pump. Theengine must not be started withthe hydraulic tank shutoff valves inthe CLOSED position or componentdamage will occur. If the tankvalves are closed, remove the keyfrom the key switch and tag themachine to inform personnel of thecondition.Table D Procedures800-610-4101ActionRental.com