Genie Z-30/20N Service And Repair Manual

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

Contents

Genie Z-30/20N Service And Repair Manual Manual pdf 41 page image

September 2015 Service and Repair ManualPrimary Boom ComponentsPart No. 1268498 Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N 3115 Place a rod through the barrel-end pivot pinand twist to remove the pin.Crushing hazard. The primaryboom lift cylinder could becomeunbalanced and fall if notproperly supported by the liftingdevice.16 Attach an overhead crane or similar liftingdevice to the lug on the rod-end of the primaryboom lift cylinder. Carefully loosen the strapsand allow the primary boom lift cylinder toslowly swing down.17 Carefully remove the cylinder from themachine.Crushing hazard. The primaryboom lift cylinder could becomeunbalanced and fall if notproperly supported by the liftingdevice.4-4 Primary Boom Extension C ylinder4-4Primary Boom ExtensionCylinderThe primary boom extension cylinder extends andretracts the primary boom extension tube. Theprimary boom extension cylinder is equipped withcounterbalance valves to prevent movement in theevent of a hydraulic line failure.How to Remove the PrimaryBoom Extension CylinderBodily injury hazard. Thisprocedure requires specific repairskills, lifting equipment and asuitable workshop. Attemptingthis procedure without theseskills and tools could result indeath or serious injury andsignificant component damage.Dealer service is stronglyrecommended.Note: When removing a hose assembly or fitting,the O-ring (if equipped) on the fitting and/or hoseend must be replaced. All connections must betorqued to specification during installation. Refer toSpecifications, Hydraulic Hose and Fitting TorqueSpecifications.1 Raise the primary boom to a horizontalposition.2 Extend the primary boom until the primaryboom extension cylinder rod-end pivot pin isaccessible in the primary boom extensiontube.