REV BJune 2005 Section 4 • Repair ProceduresPart No. 65162 TMZ-50/30 4 - 13PRIMARY BOOM COMPONENTS4-1Cable TrackThe boom cable track guides cables and hosesrunning up the boom. It can be repaired link by linkwithout removing the cables and hoses that runthrough it. Removing the entire boom cable trackmay be necessary when performing major repairsthat involve removing the boom.How toRemove the Cable TrackWhen removing a hose assemblyor fitting, the O-ring on the fittingand/or hose end must be replacedand then torqued to specificationduring installation. Refer toSection Two, Hydraulic Hose andFitting Torque Specifications.1 Disconnect the platform controls from theharness connector at the platform mount.2 Tag and disconnect the platform controls wireharness at the platform mount.3 Tag and disconnect the limit switch wireharness at the platform mount.4 Tag and disconnect the wires from the ACoutlet box.5 Release the wire harnesses which are securedto the platform mount and the jib boom.6 Pull all the harness cables through the jib boomand jib mount. Lay them off to the side of theprimary boom.Component damage hazard.Cables and hoses can bedamaged if they are kinked orpinched.7 Tag, disconnect and plug the hydraulic hoses atthe jib boom lift cylinder. 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 to squirtor spray.8 Tag, disconnect and plug the hydraulic hoses atthe platform level slave cylinder. Cap the fittingson the 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.9 Pull all the hoses through the jib mount. Laythem off to the side of the primary boom.Component damage hazard.Cables and hoses can bedamaged if they are kinked orpinched.800-610-4101ActionRental.com
