Section 4 • Repair ProceduresJanuary 2012Part No. 228901 GS-30 • GS-32 • GS-46 • GS-47 4 - 153-1Hydraulic TankThe primary functions of the hydraulic tank are tocool and deaerate the hydraulic fluid duringoperation. It utilizes internal suction strainers forthe pump supply lines and has an external returnline filter.How to Remove theHydraulic TankComponent damage hazard. Thework area and surfaces where thisprocedure will be performed mustbe clean and free of debris thatcould get into the hydraulicsystem.When removing a hose assembly or fitting, thefitting and/or hose end must be torqued tospecification during installation.Refer to Section 2,Hydraulic Hose and FittingTorque Specifications.Perform this procedure with the platform in thestowed position.1 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.2 Tag and disconnect the hydraulic tank returnhard line from the filter. Remove the hard linefrom the machine. Cap the fitting on the filterhead.3 Tag and disconnect the hydraulic tank hard linefrom the pump. Remove the hard line from themachine. Cap the fitting on the pump.4 Remove the hydraulic tank retaining fastenersand remove the hydraulic tank from themachine.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.5 Remove the hydraulic tank cap and drain thetank into a suitable container.Torque specificationsHydraulic tank retaining fasteners, dry 35 in-lbs4 NmHydraulic tank retaining fasteners, lubricated 26 in-lbs2.9 NmHydraulic Tank
