Service Manual April 2016Jib Boom Components66 Z-34/22 Bi-Energy Part No. 1392343-1Jib BoomHow to R emove the Jib BoomHow to Remove the Jib BoomNote: 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 platform.2 Remove the platform mounting weldment andthe platform rotator. Refer to RepairProcedure, How to Remove the PlatformRotator.3 Tag, disconnect and plug the jib boom liftcylinder hydraulic hoses. Cap the fittings onthe jib boom lift 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.4 Remove the cable cover from the side of thejib boom.5 Tag, disconnect and plug the hydraulic hosesfrom ports "T" and "P" of the jib boommanifold. Cap the fittings on the manifold.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 Tag and disconnect the electrical wiring fromthe jib boom manifold.7 Attach a lifting strap from an overhead craneto the jib boom.8 Remove the pin retaining fasteners from thejib boom pivot pin at the jib boom bellcrank.9 Use a soft metal drift to remove the jib boompivot pin. Remove the jib boom from the jibboom bellcrank.Crushing hazard. The jib boomcould fall when the pin isremoved if not properlysupported by the overheadcrane.10 Remove the pin retaining fasteners from thejib boom lift cylinder rod-end pivot pin. Do notremove the pin.11 Remove both of the jib boom leveling linksfrom the bellcrank.12 Attach a lifting strap from an overhead craneto the rod-end of the jib boom lift cylinder.13 Use a soft metal drift to remove the jib boomlift cylinder rod-end pivot pin. Remove the jibboom lift cylinder from the jib boom bellcrank.Crushing hazard. The jib boomlift cylinder may becomeunbalanced and fall when it isremoved from the machine if it isnot properly supported by theoverhead crane.
