Genie GR-20J Service Manual

Also see for GR-26J: Operator's manual Installation instructions Operator's manual

Contents

Genie GR-20J Service Manual Manual pdf 45 page image

Section 3 • Scheduled Maintenance ProceduresPart No. 227656 GR-20J • GR-26J 3 - 27September 2016Checklist E ProcedureE-1Test or Replace the Hydraulic 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 may cause the machine toperform poorly and continued use may causecomponent damage. Extremely dirty conditionsmay require oil changes to be performed moreoften.Before replacing the hydraulic oil, the oil may betested 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 machine inthe stowed position.1 Open the turntable covers of the machine.2 Disconnect the battery pack from the machine.Electrocution/burn hazard. Contactwith electrically charged circuitscould result in death or seriousinjury. Remove all rings, watchesand other jewelry.3 Remove the fasteners securing the chassis sidecover next to the tank to the chassis. Removethe side cover. Lay the side cover andfasteners to the side.4 Place a suitable container under the hydraulictank. Refer to Section 2,Specifications.5 Locate and remove the hydraulic tank filler cap.Set the filler cap to the side.6 Remove the drain plug and drain all of the oilinto a suitable container.7 Clean up any oil that may have spilled. Properlydiscard the used oil.Note: To clean the inside of the hydraulic tankusing a mild solvent, it may be helpful to removethe hydraulic power unit from the tank. Refer toRepair Procedure 6-1,How to Remove theFunction Pump.8 Install the drain plug onto the hydraulic tank andtorque to specification.Torque specificationHydraulic tank drain plug 44 in-lbs5 Nm9 Fill the tank with hydraulic oil until the fluid is atthe full indicator on the hydraulic tank. Do notoverfill.10 Install the filler cap onto the hydraulic tank, andsecurely tighten. Do not over tighten.11 Activate the pump to fill the hydraulic systemwith oil and bleed the system of air.Component damage hazard. Thepump can be damaged if operatedwithout oil. Be careful not to emptythe hydraulic tank while in theprocess of filling the hydraulicsystem. Do not allow the pump toactivate.