Operator's Manual

ManualsBrandsToro ManualsTrenchersToro 22973

g000502

Figure2

1.Safety-alertsymbol

Thismanualuses2wordstohighlightinformation.

Importantcallsattentiontospecialmechanical

informationandNoteemphasizesgeneralinformation

worthyofspecialattention.

Contents

Safety.......................................................................4

SafeOperatingPractices....................................4

SafetyandInstructionalDecals..........................6

Setup.......................................................................11

1InstallingtheBoomandChain.........................11

2CheckingtheFluidLevels..............................12

3ChargingtheBattery(Electric-StartModels

Only).............................................................12

ProductOverview...................................................12

Controls...........................................................12

KeySwitch....................................................13

Specications..................................................15

Attachments/Accessories.................................15

Operation................................................................16

AddingFuel......................................................16

PerformingDailyMaintenance..........................17

StartingtheEngine...........................................17

DrivingtheMachine..........................................18

ShuttingofftheEngine......................................18

DiggingaTrench..............................................18

MovingaNon-FunctioningMachine..................19

SecuringtheMachineforTransport..................19

LiftingtheMachine...........................................19

OperatingTips.................................................20

Maintenance...........................................................21

RecommendedMaintenanceSchedule(s)...........21

Pre-MaintenanceProcedures..............................22

RemovingtheCoverPlate................................22

RemovingtheBottomShield............................23

Lubrication..........................................................23

GreasingtheMachine.......................................23

GreasingtheTrencherHousing........................24

EngineMaintenance...........................................25

ServicingtheAirCleaner..................................25

ServicingtheEngineOil....................................27

ServicingtheSparkPlug...................................29

FuelSystemMaintenance...................................30

DrainingtheFuelT ank......................................30

ReplacingtheFuelFilter...................................31

ElectricalSystemMaintenance...........................31

ServicingtheBattery.........................................31

ReplacingtheFuses(Models22973and

22974)...........................................................34

DriveSystemMaintenance..................................34

ServicingtheTracks.........................................34

BeltMaintenance................................................37

ReplacingthePump-DriveBelt.........................37

ControlsSystemMaintenance.............................37

AdjustingtheTraction-Control

Alignment......................................................37

HydraulicSystemMaintenance...........................39

HydraulicFluidSpecications...........................39

CheckingtheHydraulic-FluidLevel...................40

ReplacingtheHydraulicFilter...........................40

ChangingtheHydraulicFluid............................41

TrencherMaintenance.........................................42

ReplacingtheDiggingTeeth.............................42

CheckingandAdjustingtheDiggingChain

andBoom.....................................................42

ReplacingtheDriveSprocket...........................43

Cleaning..............................................................44

RemovingDebrisfromtheMachine..................44

Storage...................................................................44

Troubleshooting......................................................46

Schematics.............................................................48