Service Manual

OilPressureSwitch(MachinewithKubotaEngine)
g228837
Figure255
1.Oilpressureswitch2.Oillter
Theengineoilpressureswitchisanormallyclosedswitchthatopenswith
pressureduringnormalengineoperation.Theoilpressureswitchislocatedon
theengineneartheoillter(Figure255).OnmachineswithaKubotadiesel
engine,theToroElectronicController(TEC)monitorstheoperationoftheoil
pressureswitch.TheoilpressureswitchinmachineswithaKubotagasoline
engineismonitoredbytheengineECU.
Note:Lowengineoilpressure,adamagedoilpressureswitchordamaged
wiringtotheoilpressureswitchcouldcauseaclosedcircuitthatwouldleadto
engineshutdownwithanInfoCenterdisplayidentifyingAdvisory#169.
TestingtheOilPressureSwitch
1.Parkthemachineonalevelsurface,settheparkingbrake,lowerthecutting
units,andshutofftheengine.Removethekeyfromthekeyswitch.
2.Raiseandsupporthood.Locateoilpressureswitchonengineand
disconnectthewireharnessconnectorfromtheswitch.
g228838
Figure256
1.Switchterminal2.Switchbase
3.Useadigitalmultimetertomeasurecontinuitybetweentheoilpressure
switchterminalandtheswitchbase(groundconnection)(Figure256).
A.Withtheenginenotrunning,theoilpressureswitchshouldbeclosedso
thereshouldbecontinuitybetweentheswitchterminalandtheswitch
base(0ohms).
B.Withtheenginerunning,theoilpressureswitchshouldbeopensothere
shouldnotbecontinuitybetweentheswitchterminalandtheswitchbase
(inniteohms).
ElectricalSystem:TestingtheElectricalComponents
Page7–86
Reelmaster
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5410/5510/5610Series
15216SLRevD