REV BSection 4 • Repair Procedures June 20054 - 14 TMZ-34/19 Part No. 52075BOOM COMPONENTS13 Remove the pin retaining fasteners from theprimary boom pivot pin at the jib boom mount.14 Using a soft metal drift, remove the primaryboom pivot pin at the jib boom mount.Crushing hazard. The jib boommount could become unbalancedand fall if not properly supportedwhen the pivot pin is removed.15 Remove the jib boom mount from the machine.Carefully pull the hoses and cables through thejib mount while removing it.Crushing hazard. The jib boommount could become unbalancedand fall if not properly supportedwhen removed from the machine.Component damage hazard.Cables and hoses can bedamaged if they are kinked orpinched.16 Attach a lifting strap from an overhead crane tothe primary boom linkage.17 Remove the pin retaining fasteners from theprimary boom linkage pivot pin at the boompivot.18 Using a soft metal drift, remove the primaryboom linkage pivot pin at the boom pivot.Crushing hazard. The primaryboom linkage could becomeunbalanced and fall if not properlysupported when the pivot pin isremoved.19 Remove the primary boom linkage from themachine.Crushing hazard. The primaryboom linkage could becomeunbalanced and fall if not properlysupported when removed from themachine.20 Carefully lay the hoses and cables over theboom pivot.Component damage hazard.Cables and hoses can bedamaged if they are kinked orpinched.21 Support and secure the primary boom liftcylinder to an appropriate lifting device.22 Tag, disconnect and plug the hydraulic hoses atthe primary boom lift cylinder. Cap the fitting 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 to squirtor spray.23 Tag and disconnect the wires from the primaryboom lift cylinder.24 Remove the pin retaining fasteners from theprimary boom lift cylinder rod-end pivot pin.800-610-4101ActionRental.com
