Genie TZ-50 Servise Manual

Also see for TZ-50: Operator's manual Service manual Operator's manual Operator's manual

Genie TZ-50 Servise Manual Manual pdf 53 page image

REV A4 - 4 Genie TZ-50/30 Part No. 84577November 2004Section 4 • Repair Procedures2-1Jib BoomThe jib boom lift cylinder raises and lowers the jibboom. The jib boom lift cylinder is equipped with acounterbalance valve to prevent movement in theevent of a hydraulic line failure.How to Remove the Jib BoomWhen removing a hose assemblyor fitting, the O-ring on the fittingand/or hose end must be replacedand then torqued to specificationduring installation. Refer to Section2, Hydraulic Hose and FittingTorque Specifications.1 Remove the platform. See 1-1, How to Removethe Platform.2 Raise the jib boom 4 to 5 feet / 1.2 to 1.5 m.3 Lower the jib boom until the platform mountrests on sawhorses or a work table of sufficientcapacity.4 Tag and disconnect the wire harness from theplatform control box.5 Tag and disconnect the wires from the jibmanifold.6 Remove the wire harness from the platformmount and the jib boom.7 Pull the all harness cables through the jib boomand lay them off to the side of the primaryboom.Component damage hazard.Cables and hoses can be damagedif they are kinked or pinched.a platform mountb jib boom cylinder barrel-end pivot pinc jib link pivot pind jib linke jib boom lift cylinderf jib boomg jib boom cylinder rod-end pivot pinh jib boom pivot pini jib mount pivot pinj platform level slave cylinder rod end pivot pinba fd e g h i jcJib Boom Components8 Tag, disconnect and plug the hydraulic hoses tothe platform rotator. Cap the fittings on therotator.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 Tag, disconnect and plug the hydraulic hoses tothe jib cylinder. Cap the fittings on 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.