Toro 04042 - Page 164

TestingtheMainContactor(continued)
A.Locatethewireharnessconnectorforworklightslocatedontheleftside
oftheupperhandle.Theconnectorwillbeidentiedwithatagandwill
haveapinkandablackwireattachedtotheconnector.
B.Removetheplugorworklightharnessconnector(ifthemachineis
equippedwithoptionalworklights)fromthemachinewireharnesswork
lightconnector.
C.Themachinewireharnessworklightconnectorleadingtotheharness
blackwirewillbeusedforcontactorvoltagetesting.
g204729
Figure115
1.Maincontactor3.Maincontactpost
2.Rubberboot
4.Coilpost
6.Useamultimetertomeasurethevoltageacrossthemaincontactorpostsas
follows:
A.Positiontherubberbootsawayfromthemaincontactorpoststoget
accesstothepostswithmultimeterprobes(Figure115).
B.Connectthemultimetercommon(-)testprobetothegroundconnectorin
theworklightconnector(step5).
C.EnsurethatthetractionleverisintheNEUTRALposition.Temporarily
connectthebatterypack;refertoConnectingtheLithiumBatteryPack
(page5–7).
D.TurnthekeyswitchtotheSTARTpositiontowakeupthemachineand
thenturnthekeyswitchtotheRUNposition.Themaincontactorshould
clickasitisenergized.
E.Usethesecondmultimetertestprobe,checkthatall4postsonthemain
contactorhavesystemvoltage(42Vto64V@100%stateofcharge)
present(Figure115).If1ormorepostsdonothavesystemvoltage
present,thecontactorisdamaged.Ifnoneofthepostshavevoltage
present,ensurethatcommon(-)testprobeisstillconnectedtothework
lightconnectorandifso,lookforelectricalissuesatothermachine
componentsasthecontactorisnotbeingenergizedcorrectly.
F.TurnthekeyswitchtotheOFFposition.Themaincontactorshouldclick
asitisde-energized.
G.Disconnectthebatterypack;refertoConnectingtheLithiumBatteryPack
(page5–7).
ElectricalSystem:TestingtheElectricalComponents
Page5–64
Greensmaster
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