Toro Groundsmaster 4500-D Series User Manual

Testing
Themosteffectivemethodforisolatingproblemsinthehydraulicsystemisby
usinghydraulictestequipmentsuchaspressuregaugesandowmetersinthe
circuitsduringvariousoperationalchecks(seetheSpecialTools(page2–16)).
IMPORTANT
Allobviousareassuchashydraulicoilsupply,oillters,binding
components,loosefastenersorimproperadjustmentsmustbe
checkedbeforeassumingthatahydrauliccomponentisthesource
oftheproblem.
CAUTION
Failuretousegaugeswithrecommendedpressure(bar/PSI)rating
aslistedintestprocedurescouldresultindamagetothegaugeand
possiblepersonalinjuryfromleakinghotoil.
WARNING
Keepbodyandhandsawayfrompinholeleaksornozzlesthateject
hydraulicuidunderhighpressure.Donotusehandstosearch
forleaks;usepaperorcardboard.Hydraulicuidescapingunder
pressurecanhavesufcientforcetopenetratetheskinandcause
seriousinjury.Ifuidisinjectedintotheskin,itmustbesurgically
removedwithinafewhoursbyadoctorfamiliarwiththistypeof
injury.Gangrenemayresultfromsuchaninjury.
Beforedisconnectingorperforminganyworkonthehydraulic
system,allpressureinthesystemmustberelieved.SeeRelieving
HydraulicSystemPressure(page5–4).
CAUTION
Alltestingshouldbeperformedbytwo(2)people.Oneperson
shouldbeintheseattooperatethemachine,andthesecondperson
shouldreadtestinstrumentsandrecordtestresults.
PrecautionsforHydraulicTesting
1.Cleanmachinethoroughlybeforedisconnectingordisassemblingany
hydrauliccomponents.Alwayskeepinmindtheneedforcleanlinesswhen
workingonhydraulicequipment.Contaminationwillcauseexcessivewear
ofcomponents.
2.Beforeconductingahydraulictest,makesurehydraulicoilisatnormal
operatingtemperaturebyoperatingthemachineunderloadforapproximately
ten(10)minutes.
3.Checkcontrollinkagesforimproperadjustment,bindingorbrokenparts.
Groundsmaster
®
4500-D/4700-D
Page5–43
HydraulicSystem:Testing
19245SLRevA

Toro Groundsmaster 4500-D Series Specifications

General

Brand	Toro
Model	Groundsmaster 4500-D Series
Category	Lawn Mower
Language	English