PN 57.4400.0100_020115 - Genie

11.7 CHANGE AXLE WHEEL END OILTo change the oil in the axle wheel ends, turn wheelso drain / fill plug is at the bottom of the axle. Placeone gallon container under the drain / fill plug.Remove plug and drain oil into container. When allfluid has drained rotate drain / fill plug to thehorizontal center of the axle and add new oil. Installand tighten plug. Repeat procedures for each wheel.Travel the machine for two minutes then recheck oillevels. Add more oil if necessary.11.9 CHECK ACCUMULATORPRE-CHARGE PRESSURE870 PSI (60 BAR) 800 PSI (55 BAR)PRE-CHARGE PRE-CHARGE11.8 CHANGE AXLEDIFFERENTIAL OILThe front and rear axle differentials use the sameprocedures. Place a two-gallon container under thedrain plug. Loosen both drain plug and level plug andallow oil to flow out from the reduction gear. Refitand tighten drain plug. Add new oil through plug untilit is level with the hole. Refit and tighten level plug.Pressure is present in the steering safety hydrauliccircuit even when the engine is off. Whendisassembling, disconnecting, or checking the prechargeof the steering accumulator, rotate thesteering wheel left or right with engine shut downuntil the steering wheel becomes hard to move. Thisprocedure will eliminate the trapped pressure in thesteering circuit.Use the olaer pressure regulator and gaugeassembly or equivalent to check the pre-chargepressure.Rear Axle DifferentialFront Axle Differential57.4400.0100 TX51-19M-1-SM 01-29-02Remove the protective cap from the test port.Install the pressure regulator and gauge assembly tothe test port on the accumulator. Make sure thebleed valve is turned clockwise inward and verifypressure (870 PSI (60 BAR) for SystemAccumulator and 800 PSI (55 BAR) for SteeringAccumulator). If pressure is low, check the chargingvalve for leaks using soapy water at the test port.Add additional dry nitrogen gas, if needed, byopening the nitrogen control valve. To releaseexcess nitrogen gas pressure, open up bleedervalve located at bottom of pressure regulator untilthe correct pressure is achieved. Install theprotective cap.95