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 73 page image

Part No. 139378 Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N 4 - 23June 2011 Section 4 • Repair ProceduresREV A SECONDARY BOOM COMPONENTS5-1Secondary BoomHow to Disassemble theSecondary BoomBodily injury hazard. Theprocedures in this section requirespecific repair skills, liftingequipment and a suitableworkshop. Attempting thisprocedure without these skills andtools could result in death orserious injury and significantcomponent damage. Dealerservice is required.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 counterweight cover.2 Place a suitable lifting device under the platformfor support.3 Disconnect the battery packs from the machine.4 Remove the cable cover from the side of the jibboom.5 Remove the wire loom from the cables at theplatform control box.6 Locate the cables from the primary boom cabletrack to the platform control box. Number eachcable and its entry location at the platformcontrol box.7 Open the platform control box.8 Tag and disconnect each wire from the cablesin the platform control box.Electrocution/burn hazard. Contactwith electrically charged circuitscould result in death or seriousinjury. Remove all rings, watchesand other jewelry.9 Pull the cables out of the platform control box.10 Pull all of the electrical cables out of the plasticcable track. Do not pull out the hydraulic hoses.11 Remove the hose clamps from the bottom sideof the primary boom.12 Tag, disconnect and plug the hydraulic hosesfrom the "P" and "T" ports at the jib boom/rotatemanifold. 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 to squirtor spray.13 Remove the hose clamp from the side of theprimary boom at the pivot end.14 Remove the primary boom extend drive speedlimit switch (LS1) mounted on the side of theprimary boom at the pivot end. Do notdisconnect the wiring.