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 25 page image

September 2016Part No. 1272852 GTH-5519 3-3Section 3 • Repair ProceduresBOOM COMPONENTSHow to Remove the BoomWARNING Bodily injury hazard. Thisprocedure requires specificrepair skills, lifting equipmentand a suitable workshop.Attempting this procedurewithout these skills and toolscould result in death or seriousinjury and significant componentdamage. Dealer service isstrongly recommended.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 Hoseand Fitting Torque Specifications.1 Remove the forks from the boom.2 Disconnect the electric cables from the boom,if present.3 Lift the boom until the pin locking the liftcylinder is in a position above the cab roof.4 Place a stand under the lift cylinder to properlysupport it once the pin connecting the cylinderto the boom will be removed.5 Attach a lifting strap from an overhead crane tothe fork support and slightly lift the boom. Donot apply any lifting pressure.6 Attach a second strap from the overhead craneto the lifting cylinder, rod side, and put sometension on it.7 Using a soft metal drift, remove the slavecylinder locking pin from the boom support.DANGER Crushing hazard. The cylinderwill fall if not properly supportedwhen the pivot pin is removedfrom the machine.88 Flip the slave cylinder towards the cab.Flip the slave cylinder towards the cab.9 Using a soft metal drift, remove the lift cylinderlocking pin, boom side.10 Operate the 2 overhead cranes at the sametime to lower the boom being careful to rest thelift cylinder onto the support previously placedunderneath, and the boom tip onto anotherstand positioned to support the front part of theboom.11 Hook the 3 lifting points and then slowly lift theboom.12 Tag, disconnect and plug the hydraulic hosesthat go to the extend, retract, fork tilt and forkleveling cylinders, and the quick couplingcylinder (if equipped).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.13 Using a soft metal drift, remove the pinsecuring the boom to the machine.DANGER Crushing hazard. The boomwill fall if not properly supportedwhen the pivot pin is removedfrom the machine.14 Carefully remove the boom assembly from themachine and place it on a structure capable ofsupporting it.