LiftControlValveSolenoidValveCoil(MachineSerialNumber
above311000000)
g227680
Figure163
1.Liftcontrolvalve3.SV1solenoid
2.SV2solenoid
Thehydraulicliftcontrolvalveislocatedontherightsideofthemachine,near
thefrontrightwheel(Figure163).Whenthesolenoidcoilsareenergized,the
valveshiftoccurstocontrolthehydraulicuidow.Theelectricaltestingofthe
coilscanbedonewiththecoilinstalledonthehydraulicvalve.
TestingtheLiftControlValveSolenoidValveCoil
1.Parkthemachineonalevelsurface,lowerthecuttingdeck,settheparking
brake,shutofftheengine,andremovethekeyfromthekeyswitch.
g227289
Figure164
1.Coildiameter2.Coilheight
2.Identifythecoilresistancespeciîš¿cationbymeasuringthecoildiameterand
coilheight(Figure164).
3.Disconnectthewireharnesselectricalconnectorfromthesolenoidvalve
coilthatistobetested.
Note:Beforetakingthesmallresistancereadingswithadigitalmultimeter,
shortthemultimetertestleadstogether.Themultimeterdisplaysasmall
resistancevalue(usually0.5ohmsorless).Thisresistanceisbecauseofthe
internalresistanceofthemultimeterandtestleads.Subtractthisvaluefrom
themeasuredvalueofthecomponentthatyouaretesting.
Groundsmaster
®
3280-D/3320
Page6–63
ElectricalSystem:TestingtheElectricalComponents
05138SLRevB
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