Operator's Manual

HydraulicSystem
Maintenance
HydraulicSystemSafety
WARNING
Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.
•Ensurethatallhydraulic-uidhoses
andlinesareingoodconditionandall
hydraulicconnectionsandttingsaretight
beforeapplyingpressuretothehydraulic
system.
•Keepyourbodyandhandsawayfrom
pinholeleaksornozzlesthateject
high-pressurehydraulicuid.
•Usecardboardorpapertondhydraulic
leaks.
•Safelyrelieveallpressureinthehydraulic
systembeforeperforminganyworkonthe
hydraulicsystem.
•Seekimmediatemedicalattentionifuidis
injectedintotheskin.
Checkingthe
Hydraulic-FluidLevel
ServiceInterval:Beforeeachuseordaily
Thereservoirislledatthefactorywithapproximately
28.4L(7.50USgallons)ofhigh-qualityhydraulicuid.
Checkthelevelofthehydraulicuidbeforetheengine
isrststartedanddailythereafter.Therecommended
replacementuidisasfollows:
ToroPremiumAllSeasonHydraulicFluid
(Availablein19L(5USgallons)pailsor208L(55US
gallons)drums.SeethePartsCatalogoryourT oro
Distributorforpartnumbers).
Alternativeuids:IftheT orouidisnotavailable,
otherconventional,petroleum-baseduidsmaybe
used,providedtheymeetallofthefollowingmaterial
propertiesandindustryspecications.Checkwith
youroilsuppliertoseewhethertheoilmeetsthese
specications.
Note:T orodoesnotassumeresponsibilityfor
damagecausedbyimpropersubstitutions,souse
onlyproductsfromreputablemanufacturerswhowill
standbehindtheirrecommendation.
HighViscosityIndex/LowPourPoint
Anti-wearHydraulicFluid,ISOVG46
MaterialProperties:
Viscosity,ASTMD445cSt@40°C(104°F)
44to50
cSt@100°C(212°F)
7.9to9.1
ViscosityIndexASTM
D2270
140to160
PourPoint,ASTMD97-37°Cto-45°C(-34°Fto
-49°F)
IndustrySpecications:VickersI-286-S(Quality
Level),VickersM-2950-S
(QualityLevel),Denison
HF-0
Important:TheISOVG46Multigradeuidhas
beenfoundtoofferoptimalperformanceinawide
rangeoftemperatureconditions.Foroperation
inconsistentlyhighambienttemperatures,65°F
(18°C)to120°F(49°C),ISOVG68hydraulicuid
mayofferimprovedperformance.
PremiumBiodegradableHydraulicFluid-Mobil
EALEnviroSyn46H
Important:MobilEALEnviroSyn46Histheonly
syntheticbiodegradableuidapprovedbyToro.
Thisuidiscompatiblewiththeelastomersused
inTorohydraulicsystemsandissuitablefora
wide-rangeoftemperatureconditions.Thisuidis
compatiblewithconventionalmineraloils,butfor
maximumbiodegradabilityandperformancethe
hydraulicsystemshouldbethoroughlyushed
ofconventionaluid.Theuidisavailablein19
L(5USgallon)containersor208L(55USgallon)
drumsfromyourMobilDistributor.
Important:Manyhydraulicuidsarealmost
colorless,makingitdifculttospotleaks.A
reddyeadditiveforthehydraulicsystemuid
isavailablein20ml(2/3oz)bottles.1bottleis
sufcientfor15to22L(4to6USgallons)of
hydraulicuid.Orderpartno.44-2500fromyour
ToroDistributor.
1.Parkthemachineonalevelsurface,engagethe
parkingbrake,lowerthemowerdecks,shutoff
theengine,andremovethekey.
2.Checkthehydraulic-uidlevel(Figure79).
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