Toro Reelmaster 3100-D - Reel Drive Solenoid Testing

ReelDriveSolenoid
g346523
Figure140
1.Hydraulicmanifold2.Solenoid
ThehydraulicsystemontheReelmasterusesasolenoidvalvecoilonthe
hydraulicmanifold(Figure140).Whenthesolenoidvalvecoil(SV)isenergized,
hydraulicowisdirectedtothecuttingdecks.
Thestandardcontrolmoduleprovidescurrenttothesolenoidvalvecoilbased
onthepositionofseveralinputs.ALEDonthestandardcontrolmodulewillbe
illuminatedwhenthesolenoidvalvecoilisenergized.
Testing
Note:Thesolenoiddoesnothavetoberemovedfromthecartridgevalvefor
testing.
1.MakesurekeyswitchisintheOFFposition.Unplugwireharnesselectrical
connectorfromsolenoidvalvecoil.
Note:Priortotakingsmallresistancereadingswithadigitalmultimeter,
shortthetestleadstogether.Themeterwilldisplayasmallresistancevalue
(usually0.5ohmsorless).Thisresistanceisduetotheinternalresistance
ofthemeterandtestleads.Subtractthisvaluefromthemeasuredvalue
ofthecomponentyouaretesting.
2.Apply12VDCsourcedirectlytothesolenoid.Listenforsolenoidtoswitchon.
3.Remove12VDCsourcefromthesolenoid.Listenforsolenoidtoswitchoff.
4.Measureresistancebetweenthetwoconnectorterminals.Theresistance
shouldbeabout7.2ohms.
5.Installnewsolenoidifnecessary.
A.MakesureO-ringisinstalledateachendofcoil.Apply”Loctite242”or
equivalenttothreadsonendofvalvestembeforeinstallingnut.
B.Tightennuttoatorqueof34N·m(25ft-lb).Over-tighteningmaydamage
thesolenoidorcausethevalvetomalfunction.
6.Reconnectelectricalconnectortothesolenoid.
ElectricalSystem:ComponentTesting
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Reelmaster
®
3100-D/3105-D
20252SLRevA