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Contactors

TwocontactorsareusedoneTriFlexmachines.Bothcontactorsarelocated

undertheleftsidecover.Themaincontactorconnectsthe48Vbatteriestothe

48Vpowerbusforthelift/loweractuators,cuttingunitmotors,theoptional3WD

tractionmotor,andthestarter/generator(model04580).Thesteeringmotoris

connectedtothe48Vpowerbusatalltimesandisnotcontrolledbythemain

contactor.Themaincontactorisenergizedbethelogicrelay.

Thetractionmotorcontactorconnectsthe48Vbatteriestothe48Vpowerbusfor

thefronttractionmotorcontrollers.Eachfronttractionmotorcontrollerpasses

48Vpoweralongtoitsspecictractionmotorasneeded.Thetractionmotor

contactorisenergizedbethelogicrelay.

g291504

Figure87

1.Maincontactor

3.Leftsidebatterybox

5.Mainterminals

2.Tractionmotorcontactor

4.Coilterminals

TestingtheContactors

1.Parkthemachineonalevelsurface,lowerthecuttingunits,setthekey

switchtotheOFFpositionandremovethekey.

2.Unplugthe48Vbatterydisconnect;referto48VBatteryDisconnect(page

5–9).Onmodel04580machines,disconnectthebatterynegative(-)cable

atthe12Vsystembattery;refertoRemovingandInstallingthe12VSystem

Battery(Model04580)(page5–105).

3.Removetheleftsidecover.

4.Recordthewireconnectorlocationsonthecontactorbeingtestedfor

assemblypurposes,anddisconnecttheharnesselectricalconnectorsfrom

contactor.Checkthecontactorandtheharnessconnectorsfordamageor

corrosionandcleanorrepairasnecessary.

Greensmaster®eTriFlex3360and3370

Page5–97

ElectricalSystem:TestingtheElectricalComponents

19239SLRevB

Toro 04591 Service Manual

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