September 2015 Service and Repair ManualJib Boom ComponentsPart No. 1268515 Z-34/22 Bi-Energy 233-2 Jib Boom Bell Crank3-2Jib Boom Bell CrankHow to R emove the Jib Boom Bell CrankHow to Remove the Jib BoomBell CrankNote: 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 hoseend must be replaced. All connections must betorqued to specification during installation. Refer toSpecifications, Hydraulic Hose and Fitting TorqueSpecifications.1 Remove the jib boom. Refer to RepairProcedure, How to Remove the Jib Boom.2 Support and secure the jib boom bell crank toan appropriate lifting device.3 Remove the pin retaining fasteners from theslave cylinder rod-end pivot pin. Do notremove the pin.4 Place a block of wood under the platformleveling slave cylinder for support. Protect thecylinder rod from damage.5 Remove the pin retaining fasteners from thejib boom bell crank at the extension boom.Use a soft metal drift to remove the pin.6 Use a soft metal drift to remove the slavecylinder rod-end pivot pin.7 Remove the jib boom bell crank from theextension boom.Crushing hazard. The jib boombellcrank may becomeunbalanced and fall if it is notproperly supported when it isremoved from the machine.3-3 Jib Boom Lift Cylinder3-3Jib Boom Lift CylinderHow to R emove the Jib Boom Lift CylinderHow to Remove the Jib Boom LiftCylinderNote: 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 hoseend must be replaced. All connections must betorqued to specification during installation. Refer toSpecifications, Hydraulic Hose and Fitting TorqueSpecifications.1 Raise the jib boom slightly and place blocksunder the platform mounting weldment. Thenlower the jib boom until the platform is restingon the blocks just enough to support theplatform.Note: Do not rest the entire weight of the boom onthe blocks.2 Tag, disconnect and plug the jib boom liftcylinder hydraulic hoses. Cap the fittings onthe cylinder.Bodily injury hazard. Sprayinghydraulic oil can penetrate andburn skin. Loosen hydraulicconnections very slowly to allowthe oil pressure to dissipategradually. Do not allow oil tosquirt or spray.3 Remove the pin retaining fasteners from thejib boom lift cylinder rod-end pivot pin. Do notremove the pin.