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 48 page image

3-26 GTH-5519 Part No. 1272852September 2016Section 3 • Repair Procedures6-2Hydrostatic TransmissionPumpHow to Test the HydrostaticTransmission PumpNote: Perform this procedure on a firm, levelsurface, with the boom in the stowed position andservice brake pedal engaged.1 Connect a 0 to 8700 psi / 0 to 600 bar pressuregauge to port TP2 (hydrostatic transmissionhigh pressure test port).2 Connect a 0 to 870 psi / 0 to 60 bar pressuregauge to port TP3 (hydrostatic transmissionboost pressure test port).3 Start the engine.Result: the pressure gauge connected to testport TP3 reads 360 psi / 25 bar.Pressure is not within specification.Contact Genie Service Department.4 Increase the engine speed to 1200 rpm.5 Engage forward or reverse gear.Result: the pressure gauge connected to testport TP2 reads 725 psi / 50 bar.Pressure is not within specification.Adjust the high pressure relief valve "a" locatedabove the pump.6 Increase the engine speed to maximum rpm.Result: the pressure gauge on test port TP2reads 7180 psi / 495 bar.Pressure is not within specification.Adjust the high pressure relief valve "b" locatedabove the pump.7 While observing the pressure gauge connectedto test port TP3, operate the engine between1200 rpm and maximum rpm.Result: the pressure gauge on test port TP3does not go below 360 psi / 25 bar.Pressure is not within specification.Contact Genie Service Department.HYDRAULIC PUMPSb a