4 - 10 Genie Z-60/34 Part No. 75861November 2003Section 4 • Repair ProceduresREV AJib Boom Components3-1Jib BoomHow to Remove the Jib BoomPerform this procedure with theboom in the stowed position.When removing a hose assemblyor fitting, the O-ring on the fittingand/or hose end must be replacedand then torqued to specificationduring installation.Refer to Section Two, HydraulicHose and Fitting TorqueSpecifications.1 Remove the platform.2 Remove the platform mounting weldment,the platform leveling slave cylinder and theplatform rotator.3 Support the platform pivot weldment with anappropriate lifting device.4 Remove the pin retaining fasteners from theplatform pivot weldment to jib boom pivot pin.Use a soft metal drift to remove the pin, thenremove the platform pivot weldment from the jibboom.Crushing hazard. The platformpivot weldment may becomeunbalanced and fall whenremoved from the machine if notproperly supported.5 Tag, disconnect and plug the jib boom liftcylinder hydraulic hoses. Cap the fittings on thecylinder.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.6 Remove the pin retaining fasteners from the jibboom lift cylinder barrel-end pivot pin. Do notremove the pin.7 Tag, disconnect and plug all the hydraulichoses from the jib boom manifold. Cap thefittings on the manifold.8 Tag and disconnect the wiring from the jib boommanifold.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.9 Pull the hydraulic hoses up through the jib boomlift cylinder mounting bracket.Component damage hazard.Hoses can be damaged if they arekinked or pinched.
