Genie Z-30/20N Service Manual

Also see for Z-30/20N: Maintenance manual Maintenance manual Service manual Service and repair manual Service manual

Contents

Genie Z-30/20N Service Manual Manual pdf 61 page image

Part No. 139378 Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N 4 - 11June 2011 Section 4 • Repair ProceduresREV A7 Place a block of wood under the platformleveling slave cylinder for support. Protect thecylinder rod from damage.8 Remove the pin retaining fasteners from the jibboom bell crank at the extension boom. Use asoft metal drift to remove the pin.9 Use a soft metal drift to remove the slavecylinder rod-end pivot pin.10 Remove the jib boom bell crank from theextension boom.Crushing hazard. The jib boombell crank could becomeunbalanced and fall when the pinsare removed if not properlysupported and secured to thelifting device.3-3Jib Boom Rotator(models with rotating jib boom)The platform rotator is a hydraulically activatedhelical gear assembly used to rotate the jib boom160 degrees.How to Remove the Jib BoomRotatorNote: When removing a hose assembly or fitting,the O-ring on the fitting and/or hose end must bereplaced and then torqued to specification duringinstallation. Refer to Section 2,Hydraulic Hose andFitting Torque Specifications.1 Remove the jib boom, See 3-1,How to Removethe Jib Boom.2 Support and secure the jib boom rotator to anappropriate lifting device.3 Remove the eight mounting bolts from the jibboom rotator mount.4 Remove the center bolt. Carefully remove thejib boom rotator from the machine.Crushing hazard. The jib boomrotator could become unbalancedand fall when removed from themachine if not properly supportedand secured to the lifting device.Note: When installing the jib boom rotator, be sureto torque the fasteners to specification. Refer toSection 2,Specifications.5 Support and secure the jib boom bell crank toan appropriate lifting device.6 Remove the pin retaining fasteners from theslave cylinder rod-end pivot pin. Do not removethe pin.JIB BOOM COMPONENTS