Toro Groundsmaster 7210 - Page 92

IMPORTANT
Use2peopletoperformallthetests,with1personintheseatand
theothertoreadandrecordthetestresults.
1.Cleanthemachinefullybeforeyoudisconnectordisassemblethehydraulic
components.
Note:Cleanlinessisrequiredwheneveryouworkonthehydraulic
equipment.Contaminationcausestoomuchwearonhydrauliccomponents.
2.Whenyouperformtestsonthehydraulicsystem,weartheeyeprotection.
3.Beforeyouperformatest,checkthetractioncontrolleverlinkagesfor
improperadjustment,binding,orbrokenparts.
4.Performallthehydraulictestswiththehydraulicuidatnormaloperating
temperature.
5.Installcleanmetalcapsorplugsonthehydrauliclinesthatareleftopenor
exposedduringthetestingorcomponentremoval.
6.Whenyouuseahydraulictester(pressureandow),ensurethattheinletand
outlethosesareproperlyconnectedandnotreversedtopreventdamaging
thehydraulictesterorcomponents.
7.Installthehydraulicttingsbyhandandensurethattheyarenot
cross-threadedbeforeyoutightenthemwithawrench.
8.Positionthetesterhosestopreventtherotatingmachinepartsfrom
contactinganddamagingthehosesortester.
9.Afteryouconnectthetestequipment,checkthehydraulic-uidlevelinthe
hydraulictankandensurethatthetankhasthecorrectuidlevel.
10.Whenyouuseahydraulictester(pressureandow),openthetesterload
valvefullybeforeyoustarttheenginetoreducethepossibilityofdamaging
thecomponents.
11.Ensurethattheengineisingoodoperatingconditionbeforeperformingany
hydraulictest.
Note:Useaphototacwhenyouperformahydraulictest.Theenginespeed
canaffecttheaccuracyofthetesterreadings.
12.Ifthereisatractioncircuitproblem,perform1ormoreofthefollowingtests:
chargereliefvalvepressure,transmissionpistonpumpow,tractionrelief
valvepressure,and/orwheelmotorefciency.
13.Ifthereisaliftcircuitproblem,perform1ormoreofthefollowingtests:
implementreliefpressure,gearpumpow,and/orliftcylinderinternal
leakage.
14.IfthereisaPTOcircuitproblem,performthePTOpressurevalvetest.
HydraulicSystem:TestingtheHydraulicSystem
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Groundsmaster7210
16222SLRevC