Toro Groundmaster Series - Page 109

IMPORTANT
Use2peopletoperformallthetests,with1personintheseatand
theothertoreadandrecordthetestresults.
1.Usethefollowingresourcestoassistwithhydraulicsystemtroubleshooting.
•TheHydraulicSchematicinAppendixA(pageA–1)
•HydraulicFlowDiagrams(page5–13)
•GeneralandsystemspecictroubleshootingtablesinChapter3–
Troubleshooting.
2.Alwaysweartheeyeprotectionwhenyouperforminghydraulicsystemtests.
3.Cleanthemachinefullybeforeyoudisconnectordisassemblethehydraulic
components.
Note:Cleanlinessisrequiredwheneveryouworkonthehydraulic
equipment.Contaminationcauseswearonhydrauliccomponents.
4.Topreventhydraulicsystemcontamination,putmetalcapsorplugsonany
hydrauliclinesleftopenorexposedduringtestingorremovalofcomponents.
5.Theenginemustbeingoodoperatingcondition.UsetheTDM
display/controllerscreentoverifyandmonitorengineRPMwhenperforming
ahydraulictest.Enginespeedcanaffecttheaccuracyofthetestreadings.
Usetheinformationbelowwhenperforminghydraulicsystemtests.Ifengine
RPMisaboveorbelowthespeciedspeedduringatest,youwillneedto
adjusttheexpectedhydraulicperformanceparameters(aprox.3%per100
enginerpmatfullthrottle)
IMPORTANT
HydrauliccomponentoutputvolumerelatesdirectlytoengineRPM.
Forevery100enginerpmthefollowingcomponentoutputvolumes
willchangebythevolumelisted.
•TractionPump(P1):100engineRPM=3.85liters(118ounces)of
hydraulicuiddisplacedperminute
•GearPump(P2):100engineRPM=0.6liters(19ounces)ofhydraulic
uiddisplacedperminute.
6.Whenyouuseahydraulictester(pressureandow),ensurethattheinletand
outlethosesareproperlyconnectedandnotreversedtopreventdamaging
thehydraulictesterorcomponents.
7.Whenyouuseahydraulictester(pressureandow),openthetesterload
valvefullybeforeyoustarttheenginetoreducethepossibilityofdamaging
thecomponents.
8.Installthehydraulicttingsbyhandandensurethattheyarenot
cross-threadedbeforeyoutightenthemwithawrench.
9.Positionanytesthosesawayfrompartsthatmaymoveduringthetest
procedure.
10.Afteryouconnectthetestequipment,checkthehydraulic-uidlevelinthe
hydraulictankandensurethattheuidleveliscorrect.
11.Performallthehydraulictestswiththehydraulicuidatnormaloperating
temperature.
12.Recordtheresultsofallhydraulictestsperformed.
Groundsmaster
®
3200,3300and3310
Page5–23
HydraulicSystem:TestingtheHydraulicSystem
19240SLRevA