Service Manual

HydraulicSystem
ItemDescription
Piston(Traction)Sauer−DanfossVariableDisplacementAxialPistonPump
MaximumDisplacement(per
revolution)45cc(2.75in³)
SystemReliefPressure:
Forward300bar(4350PSI)
SystemReliefPressure:
Reverse345bar(5000PSI)
ChargePressure17bar(250PSI)
FrontWheelMotors
Displacement(perrevolution)
Sauer−Danfoss2−PositionAxialPistonMotors
19.55cc(1.19in³)Maximum/10.55cc(0.64in³)Minimum
RearAxleMotor
Sauer−Danfoss2−PositionAxialPistonMotor
withLoopFlushingValve
Displacement(perrevolution)35.00cc(2.14in³)Maximum/18.99cc(1.16in³)Minimum
GearPumpCasappa4Section,PositiveDisplacementGearpump
SectionP1/P2Displacement
(perrevolution)21.14cc(1.29in³)
SectionP3Displacement(per
revolution)6.6cc(0.40in³)
SectionP4Displacement(per
revolution)4.96cc(0.30in³)
SteeringControlValve
Displacement(perrevolution)
EatonSteeringUnit,Series5
100cc(6.1in³)
SteeringCircuitReliefPressure93bar(1350PSI)
Lift/LowerCircuitReliefPressure110bar(1600PSI)
CuttingDeckMotors
Displacement(perrevolution)
GearMotor
19.2cc(1.17in³)
PTOCircuitReliefPressure
FrontandLeftSide
RightSide
207bar(3000PSI)
138bar(2000PSI)
EngineCoolingFanMotor
Displacement(perrevolution)
CasappaGearMotor
8.4cc(0.51in³)
EngineCoolingFanCircuitRelief
Pressure
224bar(3250PSI)
HydraulicFilters
In−lineSuctionStrainer
Spin−onCartridgeType
100Mesh(InReservoir)
HydraulicReservoir
29.3Liters(7.75U.S.Gallons)
HydraulicOilSeeOperator’sManual
Note:Thepressurespecicationslistedabovearecomponentsettings.When
usingpressuregaugestomeasurecircuitpressures,valuesmaybedifferent
thanthesespecications.SeetheTestingsectionofhydraulictestprocedures
andexpectedtestresults.
SpecicationsandMaintenance:Specications
Page2–6
Groundsmaster
®
4000-D&4010-D
13202SLRevF