Toro Groundsmaster 4500-D Series - Hydraulic System

HydraulicSystem
ItemDescription
Piston(Traction)PumpSauer−DanfossVariableDisplacementAxialPistonPump
MaximumDisplacement(per
revolution)45cc(2.75in³)
SystemReliefPressure:
Forward350bar(5075PSI)
SystemReliefPressure:
Reverse360bar(5225PSI)
ChargePressure17bar(250PSI)
FrontWheelMotors
DanfossVariableDisplacementAxialPistonMotors
Displacement(perrevolution)26.47cc(1.62in³)Maximum/14.6cc(0.89in³)Minimum
RearAxleMotor
DanfossVariableDisplacementAxialPistonMotor
withLoopFlushingValve
Displacement(perrevolution)33.54cc(2.05in³)Maximum/18.5cc(1.13in³)Minimum
GearPumpCasappa4Section,PositiveDisplacementGearpump
SectionP1/P2Displacement
(perrevolution)16.85cc(1.03in³)
SectionP3/P4Displacement
(perrevolution)9.16cc(0.56in³)
SteeringControlValve
Displacement(perrevolution)
Sauer-DanfossSteeringUnit,SeriesOSPM
100cc(6.1in³)
SteeringCircuitReliefPressure72bar(1050PSI)
Lift/LowerCircuitReliefPressure110bar(1600PSI)
CuttingDeckMotors
Displacement(perrevolution)
GearMotor
19cc(1.16in³)
CuttingDeckCircuitRelief
Pressure
241bar(3500PSI)
EngineCoolingFanMotor
Displacement(perrevolution)
CasappaGearMotor
8.3cc(0.5in³)
EngineCoolingFanCircuitRelief
Pressure
207bar(3000PSI)
HydraulicFilters
In−lineSuctionStrainer
Spin−onCartridgeType
100Mesh(InReservoir)
HydraulicReservoirCapacity28.4Liters(7.5U.S.Gallons)
HydraulicOilSeeOperator’sManual
Note:Thepressurespecicationslistedabovearecomponentsettings.When
usingpressuregaugestomeasurecircuitpressures,valuesmaybedifferent
thanthesespecications.SeeT esting(page5–43)ofhydraulictestprocedures
andexpectedtestresults.
Groundsmaster
®
4500-D/4700-D
Page2–5
SpecicationsandMaintenance:Specications
19245SLRevA