Terex Z3413-9461 Service And Repair Manual

Also see for Genie Z-34/22 IC: Maintenance manual Maintenance manual Maintenance manual Service and repair manual Service and repair manual

Service and Repair Manual September 2016Hydraulic Pumps54 Z-34/22 IC Part No. 12745927-3Drive PumpThe drive pump is a bi-directional variabledisplacement piston pump. The pump output iscontrolled by a non-feedback, proportionalelectrical displacement controller (NFPE), locatedon the pump. The only adjustment that can bemade to the pump is the neutral or null adjustment.Any internal service to the pump should only beperformed at an authorized Sauer Danfoss servicecenter.How to R emove the Drive Pum pHow to Remove the Drive PumpComponent damage hazard. Thework area and surfaces wherethis procedure will be performedmust be clean and free of debristhat could get into the hydraulicsystem and cause severecomponent damage. Dealerservice is recommended.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 Remove the drain plug from the hydraulic tankand completely drain the tank into a containerof suitable capacity. Refer to Specifications.,Hydraulic Specifications.Bodily injury hazard. Beware ofhot oil. Contact with hot oil maycause severe burns.2 Disconnect the electrical connectors from thecoils of the NFPE controller (NFPE) located onthe drive pump.3 Tag,disconnect and plug the hydraulic hosesfrom the pump.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.4 Support the pump with a suitable lifting device.5 Remove the drive pump mounting bolts.Carefully remove the pump.Component damage hazard. Thepump(s) may becomeunbalanced and fall if notproperly supported.Component damage hazard.When installing the pump, donot force the pump coupler intothe flexplate or damage to thepump shaft seal may occur.How to Prime the Driv e Pum pHow to Prime the Drive Pump1 Connect a 0 to 6000 psi / 0 to 414 barpressure gauge to the test port on the drivepump.2 Gasoline/LPG models: Disconnect theignition coil wire from the center of the ignitioncoil.Diesel models: Hold the manual fuel shutofflever clockwise to the closed position.3 Crank the engine with the starter motor for15 seconds, wait 15 seconds, then crank theengine an additional 15 seconds or until thepressure reaches 320 psi / 22 bar.