Toro 04042 - Testing Electrical Circuits

TestingElectricalCircuits
GroundingOptionforTesting
WARNING
TheeFlexlithium-ionbatterypackcontainshigh
voltage,whichcouldburnorelectrocuteyou.
•Neverattempttoopenthebatterypack.
•Donotplaceanythingintheconnectoronthe
batterypackotherthanaTorowireharness
connectormadefortheproduct.
•Donotallowtoolsorvehiclecomponentsto
completethebatterycircuit.
•Useextremecarewhenhandlingabatterypack
withacrackedcase.
•Removeabatterypackwithacrackedcase
immediately.
•UseonlytheTorobatterychargerdesignedfor
thebatterypack.
Important:Themachineframeisnotusedforany
groundconnections.
Usetheworklightsconnectorforagroundconnection
(Figure20)fortestingasfollows:
1.LocatethemainwireharnessP04connector(forthe
optionalworklights)ontheleftsideoftheupper
handle.
2.Ifthemachineisequippedwiththeoptionalwork
lights,unplugconnectorP04fromtheworklight.
3.UseconnectorP04,pinB(blackwire)astheground
duringcontinuityandvoltagetesting.
B
A
g030839
P04
Figure20
MainWireHarnessWorkLightP04Connector
PinIdentication
Description
WireColor
A42to64Vdc
Violet(VIO)
B
Ground(harnesssupplied)Black(BK)
TestingforaShortCircuit
Ashortcircuitisanabnormalelectricalconnectionbetween
2electricalcircuits,andcanbediagnosedbyvoltagechecks
and/orcontinuitytests.
•Ashortcircuittogroundbeforeanelectricalcomponent
usuallycausesthefuseforthecircuittoopen.
•Ashortcircuittogroundafteranelectricalcomponent
usuallycausestheelectricalcomponenttostayonaslong
asthereispower.
Useamultimetertotestbetweentheidentiedwireharness
connectorpinsorcomponentterminalsandthesuspected
pointsoffailure.
TestingtheVoltageofaCircuit
1.Measurethevoltagebetweentheidentiedwire
harnessconnectorpinsorcomponentterminalsand
thesuspectedpointsoffailure.
2.Ifthevoltagethatyoumeasureishigherorlowerthan
thespeciedvoltage,cleanandinspecttheterminal
connectionsalongthecircuitpaththatyouaretesting.
CleaningElectronicComponentsand
Connections
Note:Useelectrical-contactcleaneronly.Donotusebrake
cleaner,asitmaypermanentlydamageelectricalconnector
bodiesandotherplasticcomponentsofthemachine.Avoid
usingmineralsolvents,astheymaydamageconnectors,seals,
andwireinsulation.
WARNING
Cleaningchemicalsandtoolscancauseinjuryif
usedimproperly.
RefertotheapplicableMSDSforappropriate
personalprotectivegear,suchasgloves,respirators,
andsafetyglasses.
1.Markthewiresforproperinstallationaftercleaningis
completed.Extractconnectorpinswiththeproper
extractiontool.
2.Cleantheterminalsortheconnectorpinsusingan
eraser,mildabrasivepaper,oranylonorberbristle
brush.Donotusemetalormetaloxides,including
aluminum.
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