Toro 74904 - Hydraulic System Maintenance; Hydraulic System Safety; Servicing the Hydraulic System

HydraulicSystem
Maintenance
HydraulicSystemSafety
•Seekimmediatemedicalattentionifuidisinjected
intoskin.Injecteduidmustbesurgicallyremoved
withinafewhoursbyadoctor.
•Ensurethatallhydraulic-uidhosesandlinesare
ingoodconditionandallhydraulicconnections
andttingsaretightbeforeapplyingpressureto
thehydraulicsystem.
•Keepyourbodyandhandsawayfrompinhole
leaksornozzlesthatejecthigh-pressurehydraulic
uid.
•Usecardboardorpapertondhydraulicleaks.
•Safelyrelieveallpressureinthehydraulicsystem
beforeperforminganyworkonthehydraulic
system.
ServicingtheHydraulic
System
Hydraulic-FluidSpecications
Hydraulic-FluidType:Toro
®
HYPR-OIL
™
500
hydraulicuidorMobil
®
115W-50.
Important:Usethespecieduid.Otheruids
coulddamagethehydraulicsystem.
EachHydraulic-SystemFluidCapacity:1.5L(52
oz)persidewithlterchange
CheckingtheHydraulicFluid
ServiceInterval:Every50hours—Checkthe
hydraulic-uidlevel.
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch(PTO),andengagethe
parkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Allowtheengineandthehydraulicsystemto
coolfor10minutes.
Note:Theoillevelonthedipstickisincorrect
whentheoilischeckedandthemachineishot.
4.Movetheseatforward.
5.Cleantheareaaroundthedipsticksof
hydraulic-systemreservoirs(Figure101).
6.Remove1dipstickfromthehydraulicreservoir
(Figure101).
7.Wipethedipstickoffandthreadthedipstickinto
thereservoir.
8.Removethedipstickandlookattheend(Figure
101).
Important:Donotoverllthehydraulic
unitswithuid,asdamagemayoccur.Do
notrunthemachinewithuidbelowtheadd
mark.
9.Iftheuidlevelisattheaddmark,slowlypour
onlyenoughuidintothehydraulicreservoirto
raisetheleveltothefullorHline.
10.Installthedipstick.
11.Repeattheprocedurefortheoppositedipstick.
g015459
Figure101
Eitherdipstickisusedinthemachine
1.Full3.H—meanshighlevel
2.Add4.Dipsticklocationsunder
seat
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