Toro Reelmaster 3100-D - Chapter 5 Hydraulic System

Chapter5
HydraulicSystem
TableofContents
GeneralInformation..............................................................................................................................5–3
Operator’sManual.............................................................................................................................5–3
RelievingHydraulicSystemPressure................................................................................................5–3
TractionCircuit(ClosedLoop)ComponentFailure.............................................................................5–3
HydraulicHoses.................................................................................................................................5–5
InstallingHydraulicHosesandTubes(O-RingFaceSealFittings).....................................................5–6
InstallingtheHydraulicFittings(SAEStraightThreadO-RingFittings)...............................................5–8
HydraulicSchematic............................................................................................................................5–11
HydraulicFlowDiagrams.....................................................................................................................5–14
TractionCircuits...............................................................................................................................5–15
ReelCircuit......................................................................................................................................5–17
LiftCircuit(Up).................................................................................................................................5–19
LiftCircuit(Down)............................................................................................................................5–21
SidewinderCircuit............................................................................................................................5–23
SteeringCircuit................................................................................................................................5–25
Testing.................................................................................................................................................5–27
BeforePerformingHydraulicT ests...................................................................................................5–27
PrecautionsforHydraulicT esting.....................................................................................................5–27
TractionCircuitT esting−ChargePressureTest...............................................................................5–29
TractionUnitTesting−WheelMotorEfciencyT ests.......................................................................5–32
TractionCircuitTesting−PistonPump/Hydrostat(P3)FlowandReliefPressure
Test..................................................................................................................................................5–37
ReelCircuitT esting−PressureTest.................................................................................................5–40
ReelCircuitTesting−ReelMotorEfciency/CaseDrainTest...........................................................5–43
ReelMotorCross−overReliefPressuresTest(UsingPressureGauge)...........................................5–46
ReelCircuitT esting−ManifoldReliefValve(SV)PressureT est.......................................................5–49
ReelCircuitT esting−GearPump(P1)FlowTest.............................................................................5–52
Steering/Lift/SidewinderCircuitT esting−GearPump(P2)FlowT est...............................................5–55
Steering/Lift/SidewinderCircuitT esting−ReliefValvePressureT est...............................................5–58
Steering/Lift/SidewinderCircuitT esting−SteeringControlValveandSteeringCylinder
Test..................................................................................................................................................5–60
ServiceandRepairs...........................................................................................................................5–62
GeneralPrecautionsforRemovingandInstallingHydraulicSystemComponents...........................5–62
CheckHydraulicLinesandHoses...................................................................................................5–63
PrimingHydraulicPumps.................................................................................................................5–64
FlushHydraulicSystem...................................................................................................................5–65
FilteringClosed−LoopTractionCircuit.............................................................................................5–67
ChargeHydraulicSystem................................................................................................................5–69
HydraulicT ankandHydraulicFluidFilter.........................................................................................5–71
RadiatorandOilCoolerAssembly...................................................................................................5–73
HydraulicPumpAssembly...............................................................................................................5–74
PistonPump/Hydrostat....................................................................................................................5–79
PistonPump/HydrostatService.......................................................................................................5–84
GearPump.......................................................................................................................................5–88
ServicingtheGearPump.................................................................................................................5–91
FrontWheelMotors.........................................................................................................................5–96
RearWheelMotor............................................................................................................................5–98
ServicingtheWheelMotor.............................................................................................................5–101
Reelmaster
®
3100-D/3105-D
Page5–1
HydraulicSystem
20252SLRevA