Toro 22327 - Hydraulic System Maintenance; Hydraulic System Safety; Relieving Hydraulic Pressure; Hydraulic Fluid Specifications

HydraulicSystem
Maintenance
HydraulicSystemSafety
•Seekimmediatemedicalattentionifuidisinjected
intoskin.Injecteduidmustbesurgicallyremoved
withinafewhoursbyadoctor.
•Ensurethatallhydraulic-uidhosesandlinesare
ingoodconditionandallhydraulicconnections
andttingsaretightbeforeapplyingpressureto
thehydraulicsystem.
•Keepyourbodyandhandsawayfrompinhole
leaksornozzlesthatejecthigh-pressurehydraulic
uid.
•Usecardboardorpapertondhydraulicleaks.
•Safelyrelieveallpressureinthehydraulicsystem
beforeperforminganyworkonthehydraulic
system.
RelievingHydraulic
Pressure
Torelievehydraulicpressurewhiletheengineison,
disengagetheauxiliaryhydraulicsandfullylowerthe
loaderarms.
Torelievethepressurewhiletheengineisoff,move
theauxiliary-hydraulicsleverbetweentheforwardand
reverseowpositionstorelieveauxiliaryhydraulic
pressure,andcycletheloader-arm/attachment-tilt
leverbetweentheforwardpositionstolowerthe
loaderarms(Figure69).
g281706
Figure69
HydraulicFluid
Specications
HydraulicTankCapacity:37.9L(10USgallons)
HydraulicFluidType:T oroPremium
Transmission/HydraulicTractorFluid(referto
yourAuthorizedServiceDealerformoreinformation)
IftheaboveT orouidisnotavailable,youmayuse
anotherUniversalTractorHydraulicFluid(UTHF),
butitmustbeonlyaconventional,petroleum-based
product.Thespecicationsmustfallwithinthelisted
rangeforallthefollowingmaterialpropertiesandthe
uidshouldmeetthelistedindustrystandards.Check
withyourhydraulicuidsuppliertodetermineifthe
uidmeetsthesespecications.
Note:Torowillnotassumeresponsibilityfordamage
causedbyimpropersubstitutions,souseonly
productsfromreputablemanufacturerswhowillstand
behindtheirrecommendations.
MaterialProperties
cStat40°C:55to62Viscosity,ASTMD445
cStat100°C:9.1to9.8
Viscosityindex,ASTMD2270
140to152
PourPoint,ASTMD97-37to-43°C(-35to-46°F)
IndustryStandards
APIGL-4,AGCOPoweruid821XL,FordNewHolland
FNHA-2-C-201.00,KubotaUDT ,JohnDeereJ20C,Vickers
35VQ25andVolvoWB-101/BM
Note:Manyhydraulicuidsarealmostcolorless,
makingitdifculttospotleaks.Areddyeadditivefor
thehydraulicsystemuidisavailablein20ml(0.67
oz)bottles.Onebottleissufcientfor15to22L
(4to6USgallons)ofhydraulicuid.OrderPartNo.
44-2500fromyourAuthorizedDealer.
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