Genie GTH-5519 Service And Repair Manual

Also see for GTH-5519: Maintenance manual Original instructions

Genie GTH-5519 Service And Repair Manual Manual pdf 28 page image

3-6 GTH-5519 Part No. 1272852September 2016Section 3 • Repair Procedures1-2Boom Lift CylinderHow to Remove the LiftCylinderNote: 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 Hoseand Fitting Torque Specifications.11 Lift the boom until the pin locking the liftLift the boom until the pin locking the liftcylinder - rod side - is in a position above thecylinder - rod side - is in a position above thecab roof. .cab roof. .22 Attach a lifting strap from an overhead 22045Attach a lifting strap from an overhead 22045lbs / 10,000 kg crane to the fork end of thelbs / 10,000 kg crane to the fork end of theboom. Support the boom. Do not apply anyboom. Support the boom. Do not apply anylifting pressure.lifting pressure.33 Tag, disconnect and plug the hydraulic hosesTag, disconnect and plug the hydraulic hosesconnected to the shut-off valve. Cap the fittings.connected to the shut-off valve. Cap the fittings.WARNING Bodily injury hazard. Sprayinghydraulic oil can penetrate andburn skin. Loosen hydraulicconnections very slowly to allowthe oil pressure to dissipategradually. Do not allow oil tosquirt or spray.NOTICE Component damage hazard.Hoses can be damaged if theyare kinked or pinched.44 Attach a lifting strap from an overhead craneAttach a lifting strap from an overhead craneto the rod end of the lift cylinder. Support theto the rod end of the lift cylinder. Support thecylinder. Do not apply any lifting pressure.cylinder. Do not apply any lifting pressure.55 Place a suitably dimensioned wooden blockPlace a suitably dimensioned wooden blockbefore the hydraulic oil tank. This block will bebefore the hydraulic oil tank. This block will beused to support the weight of the lift cylinderused to support the weight of the lift cylinderfirst, and the boom afterwards.first, and the boom afterwards.6 Remove the fasteners securing the lift cylinderrod-end pivot pin to the boom.DANGER Crushing hazard. The boomwill fall if not properly supportedwhen the pivot pin is removedfrom the machine.77 Lower the lift cylinder and place it on theLower the lift cylinder and place it on thewooden block previously positioned.wooden block previously positioned.8 Remove the fasteners securing the lift cylinderbarrel-end pivot pin to the chassis.9 Use a soft metal drift to remove the pivot pin.10 Remove the cylinder from the machine.DANGER Crushing hazard. The cylindercould fall if not properlysupported when removed fromthe machine.11 Using the overhead crane, raise and place theboom on the wooden block suitably positioned.BOOM COMPONENTS