Terex Genie GR-26J Service Manual

Also see for Genie GR-20J: Service manual Operator's manual

Section 3 • Scheduled Maintenance ProceduresPart No. 227656GT GR™-20J • GR™-26J 3 - 9March 2022CHECKLIST A PROCEDURESA-5Replace the Hydraulic SuctionStrainerGenie specifications require that this procedure beperformed every 100 hours or monthly, whichevercomes first.Replacement of the hydraulic suction strainer isessential for good machine performance andservice life. A dirty or clogged suction strainer maycause the machine to perform poorly andcontinued use may cause component damage.Extremely dirty conditions may require that thesuction strainer be replaced more often.Beware of hot oil. Contact with hotoil may cause severe burns.Note: When removing a hose assembly or fitting,the O-ring on the fitting and/or hose end must bereplaced and then torqued to specification duringinstallation. Refer to Section 2,Hydraulic Hose andFitting Torque Specifications.Note: Perform this procedure with the machine instowed position.1 Disconnect the battery pack from the machine.2 Open and remove the turntable cover at thehydraulic power unit side of the machine.3 Working next to the hydraulic tank, remove thefasteners securing the chassis side cover to thechassis. Remove the side cover. Lay the sidecover and fasteners to the side.4 Tag and disconnect the wire harnessconnectors from the function manifold.5 Tag and disconnect the cables from the motor.6 Tag, disconnect and plug the hydraulic hoses atthe function manifold. Cap the fittings on themanifold.Bodily injury hazard. Sprayinghydraulic oil can penetrate andburn skin. Loosen hydraulicconnections very slowly to allowthe oil pressure to dissipategradually. Do not allow oil to squirtor spray.7 Place a suitable container under the hydraulictank. Refer to Section 2,Specifications.8 Locate and remove the hydraulic tank filler cap.Set the filler cap to the side.9 Remove the drain plug and drain all of the oilinto a suitable container.10 Clean up any oil that may have spilled. Properlydiscard the used oil.11 Remove the fasteners securing the functionmanifold to the hydraulic tank. Set the fastenersto the side.12 Loosen the clamp securing the hydraulic powerunit to the hydraulic tank. Do not remove theclamp.13 Remove the clamp securing the hydraulicpower unit to the chassis. Set the clamp to theside.14 Carefully remove the hydraulic power unit fromthe tank and place it on a clean work bench.Note: If necessary, loosen the bottom connector ofauxiliary pump to more easily remove the hydraulicpower unit.15 Remove the suction strainer from the end of theplastic tube.16 Install the new suction strainer at the end of theplastic tube.