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 60 page image

4 - 10 Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N Part No. 139378June 2011Section 4 • Repair ProceduresREV A9 Remove the pin retaining fasteners from the jibboom lift cylinder rod-end pivot pin. Do notremove the pin.10 Models without rotating jib boom: Removeboth of the jib boom leveling links from the bellcrank.Models with rotating jib boom: Remove bothof the jib boom leveling links from the jib boomrotator.11 Attach a lifting strap from an overhead crane tothe rod-end of the jib boom lift cylinder.12 Models without rotating jib boom: Use a softmetal drift to remove the jib boom lift cylinderrod-end pivot pin. Remove the jib boom liftcylinder from the bell crank.Models with rotating jib boom: Use a softmetal drift to remove the jib boom lift cylinderrod-end pivot pin. Remove the jib boom liftcylinder from the jib boom rotator.Crushing hazard. The jib boomlift cylinder could fall when the pinis removed if not properlysupported by the overhead crane.JIB BOOM COMPONENTS3-2Jib Boom Bell Crank(models without rotatingjib boom)How to Remove the Jib BoomBell CrankNote: Perform this procedure with the boom in thestowed position.Note: 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 toRemove the Jib Boom.2 Support and secure the jib boom bell crank toan appropriate lifting device.3 Remove the pin retaining fasteners from theslave cylinder rod-end pivot pin. Do not removethe pin.4 Place a block of wood under the platformleveling slave cylinder for support. Protect thecylinder rod from damage.5 Remove the pin retaining fasteners from the jibboom bell crank at the extension boom. Use asoft metal drift to remove the pin.6 Use a soft metal drift to remove the slavecylinder rod-end pivot pin.7 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.