Toro Groundsmaster 360 - Page 104

Performthetractionreliefvalvepressuretestifyouidentifyatractioncircuit
problem.Thistestdeterminesifatransmissionreliefvalveoperatescorrectly.
TestProcedure
1.Ensurethatthehydraulicuidisatnormaloperatingtemperature.
2.EnsurethatthetractiondriveiscorrectlyadjustedfortheNEUTRALposition.
CAUTION
Beforeopeningthehydraulicsystem,operateallthehydraulic
controlstoreleasesystempressureandavoidinjuryfromthe
pressurizedhydraulicuid;refertoReleasingPressurefromthe
HydraulicSystem(page4–5).
g036058
Figure46
1.PortA4.PortD
2.PortB5.Balancinghose
3.PortC
3.Parkthemachineonalevelsurface,lowerthecuttingdeck,shutoffthe
engine,anddonotsettheparkingbrake.
4.ReadallWarning,Cautions,andprecautionslistedatthebeginningofthis
section.
5.Cleanthetransmissionareaaroundthetractioncircuithosesonthetopof
thetransmission(Figure46).
6.Determinewhichtractionreliefvalveistobetested.Disconnectthehydraulic
hosefromthetransmissionpumpoutletttingtotestthereliefvalve(Figure
45orFigure46):
ReliefValvetobeTestedPumpOutlet
Rightsideforward
PortA
RightsidereversePortB
LeftsideforwardPortC
Leftsidereverse
PortD
Note:Thepumpoutletportsarenotidentiedonthepumphousing.Referto
Figure46toidentifythepumpports.
HydraulicSystem:TestingtheHydraulicSystem
Page4–46
Groundsmaster360
16225SLRevC