Section 4 • Repair Procedures4 - 16 S-80 • S-85 • S-80X Part No. 122985February 2012Jib Boom Components, S-853-1Jib 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 thehose end must be replaced. All connections mustbe torqued to specification during installation.Refer to Section 2,Hydraulic Hose and FittingTorque Specifications.1 Remove the platform. See 2-1,How to Removethe Platform.Note: Models equipped with platform overoadsystem: If the platform overload components aredisassembled and/or removed from the platformsupport, the platform overload system will need tobe calibrated. See 2-4,How to Calibrate thePlatform Overload System.2 Models equipped with platform overloadsystem: Tag and disconnect the electricalconnector from the platform load sense module.3 Remove the hose and cable cover from the sideof the jib boom.4 Remove the hose and cable clamp from the jibboom pivot pin. Lay all hoses and cables to theside.Component damage hazard.Hoses and cables can becomedamaged if they are kinked orpinched.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 Attach a lifting strap from an overhead crane tothe jib boom assembly.7 Place blocks under the platform levelingcylinder for support. Protect the cylinder rodfrom damage.8 Remove the pin retaining fastener from theslave cylinder rod-end pivot pin. Use a softmetal drift to remove the pin.Crushing hazard. The jib boomcould fall when the slave cylinderrod-end pivot pin is removed if notproperly attached to the overheadcrane.9 Remove the pin retaining fastener from the jibboom bellcrank to primary boom pivot pin.10 Use a soft metal drift to remove the pin andcarefully remove the jib boom assembly fromthe primary boom.Crushing hazard. The jib boomcould become unbalanced and fallwhen removed from the machine ifnot properly attached to theoverhead crane.
