Toro 323 - Hydraulic System Maintenance; Hydraulic System Safety and Pressure Relief; 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,movetheattachment-tiltleverforwardand
rearward,andmovetheloader-armleverforwardto
lowertheloaderarms(Figure34).
g281214
Figure34
HydraulicFluid
Specications
HydraulicTankCapacity:62L(16.3USgallons)
Useonly1ofthefollowinguidsinthehydraulic
system:
•ToroPremiumTransmission/HydraulicTractor
Fluid(refertoyourAuthorizedServiceDealerfor
moreinformation)
•ToroPXExtendedLifeHydraulicFluid(refer
toyourAuthorizedServiceDealerformore
information)
•IfeitheroftheaboveT orouidsarenotavailable,
youmayuseanotherUniversalTractorHydraulic
Fluid(UTHF),buttheymustbeonlyconventional,
petroleum-basedproducts.Thespecications
mustfallwithinthelistedrangeforallthefollowing
materialpropertiesandtheuidshouldmeet
thelistedindustrystandards.Checkwithyour
hydraulicuidsuppliertodetermineiftheuid
meetsthesespecications.
Note:T orowillnotassumeresponsibilityfor
damagecausedbyimpropersubstitutions,souse
onlyproductsfromreputablemanufacturerswho
willstandbehindtheirrecommendations.
MaterialProperties
cStat40°C:55to62 Viscosity,ASTMD445
cStat100°C:9.1to9.8
Viscosityindex,ASTMD2270
140to152
PourPoint,ASTMD97-43to-37°C(-35to-35°F)
IndustryStandards
APIGL-4,AGCOPoweruid821XL,FordNewHolland
FNHA-2-C-201.00,KubotaUDT ,JohnDeereJ20C,Vickers
35VQ25andVolvoWB-101/BM
Note:Manyhydraulicuidsarealmostcolorless,
makingitdifculttospotleaks.Areddyeadditive
forthehydraulicsystemuidisavailablein20ml
(0.67oz)bottles.Onebottleissufcientfor15to
22L(4to6USgallons)ofhydraulicuid.Order
PartNo.44-2500fromyourAuthorizedService
Dealer.
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