Toro Groundsmaster 3320-D - Default Chapter; Service and Repairs

TestingtheSteeringCircuit–ChargePumpFlow(MachineSerialNumbersabove
316000000)......................................................................................................................................5–69
TestingtheLiftCircuit–LiftCylinderInternalLeakage(MachineSerialNumbersabove
316000000)......................................................................................................................................5–72
Adjustments........................................................................................................................................5–75
TractionPedalFrictionWheel(MachineSerialNumberbelow316000000)......................................5–75
ServiceandRepairs...........................................................................................................................5–77
GeneralPrecautionsforRemovingandInstallingtheHydraulicSystemComponents......................5–77
CheckingtheHydraulicLinesandHoses.........................................................................................5–78
PrimingtheHydraulicPump.............................................................................................................5–79
FlushingtheHydraulicSystem.........................................................................................................5–80
FilteringtheClosed-LoopTractionCircuit(MachineSerialNumberabove316000000)....................5–82
ChargingtheHydraulicSystem........................................................................................................5–85
TransmissionDriveshaft(MachineSerialNumbersbelow316000000)............................................5–87
HydrostaticTransmission(MachineSerialNumbersbelow316000000)..........................................5–90
ServicingtheHydrostaticTransmission(MachineSerialNumbersbelow316000000).....................5–93
HydrostaticTransmissionNeutralArmAssembly(MachineSerialNumberbelow
316000000)......................................................................................................................................5–95
HydraulicPumpDriveshaft(MachineSerialNumberabove316000000).........................................5–97
HydraulicPump(MachineSerialNumberabove316000000)........................................................5–100
ServicingtheHydraulicPump(MachineSerialNumberabove316000000)...................................5–103
TractionNeutralArmAssembly(MachineSerialNumberabove316000000).................................5–105
FrontAxleDriveMotor(MachineSerialNumberabove316000000)..............................................5–107
ServicingtheFrontAxleDriveMotor(MachineSerialNumberabove316000000).........................5–109
LiftCylinder....................................................................................................................................5–110
SteeringControlValve...................................................................................................................5–113
ServicingtheSteeringControlValve..............................................................................................5–116
SteeringCylinder(2-WheelDrive)..................................................................................................5–117
ServicingtheSteeringCylinder(2-WheelDrive)............................................................................5–120
SteeringCylinder(4-WheelDrive)..................................................................................................5–123
ServicingtheSteeringCylinder(4-WheelDrive)............................................................................5–125
LiftControlValve(MachineSerialNumbersbelow316000000).....................................................5–127
ServicingtheLiftControlValve(MachineSerialNumbersbelow311000000).................................5–130
CounterbalanceValveManifold(MachineSerialNumbersbelow311000000)(If
Equipped).......................................................................................................................................5–133
LiftControlValve(MachineSerialNumberabove311000000).......................................................5–136
ServicingtheLiftControlValve(MachineSerialNumberabove311000000)..................................5–139
OilCooler(Groundsmaster3280-D)..............................................................................................5–142
Additional Reference Materials
DANFOSS DDC20 AXIAL PISTON PUMP SERVICE MANUAL
DANFOSS SERIES 15 AXIAL PISTON PUMPS, MOTORS AND TRANSMISSIONS REPAIR MANUAL
DANFOSS SERIES 15 AXIAL PISTON PUMPS, MOTORS AND TRANSMISSIONS SERVICE MANUAL
EATON MODEL 74111 AND 74118 FIXED AXIAL PISTON MOTOR REPAIR INFORMATION DANFOSS
STEERING UNIT TYPE OSPM SERVICE MANUAL
HydraulicSystem:AdjustmentsPage5–2Groundsmaster
®
3280-D/3320
05138SLRevB