Toro 74978 - Hydraulic System Maintenance; Servicing the Hydraulic System

HydraulicSystem
Maintenance
ServicingtheHydraulic
System
HydraulicOilType:Toro
®
HYPR-OIL
™
500hydraulicoil
orMobil
®
115W-50.
Important:Useoilspecied.Otheruidscouldcause
systemdamage.
EachHydraulicSystemOilCapacity:52ounces(1.5l)per
sidewithlterchange
CheckingtheHydraulicOil
ServiceInterval:Every50hours—Checkthehydraulicoil
level.
1.Positionthemachineonalevelsurface.
2.DisengagethePTO,movethemotioncontrolleversto
theneutrallockedpositionandsettheparkingbrake.
3.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
4.Allowtheengineandhydraulicsystemtocoolforten
minutes.
Note:Theoillevelonthedipstickwillbeincorrect
whentheoilischeckedandtheunitishot.
5.Movetheseatforward.
6.Cleantheareaaroundthedipsticksofhydraulicsystem
reservoirs(Figure82).
7.Removeonedipstickfromthehydraulicreservoir
(
Figure82).
8.Wipethedipstickoffandthreadthedipstickintothe
reservoir.
9.Removethedipstickandlookattheend(Figure82).
Iftheoillevelisattheaddmark,slowlypouronly
enoughoilintothehydraulicreservoirtoraisethelevel
tothefullorHline.
Important:Donotoverllthehydraulicunits
withoilasdamagemayoccur.Donotrunthe
machinewiththeoilbelowtheaddmark.
10.Installthedipstick.
11.Repeatprocedurefortheoppositedipstick.
G015459
H
3
4
Figure82
Eitherdipstickwillbeusedinthemachine
1.Full3.H–meanshighlevel
2.Add4.Dipsticklocationsunder
seat
WARNING
Hydraulicoilescapingunderpressurecan
penetrateskinandcauseinjury.
•Ifhydraulicoilisinjectedintotheskinit
mustbesurgicallyremovedwithinafew
hoursbyadoctorfamiliarwiththistype
ofinjury.Gangrenemayresultifthisis
notdone.
•Keepbodyandhandsawayfrompinhole
leaksornozzlesthatejecthighpressure
hydraulicoil.
•Usecardboardorpapertondhydraulic
leaks.
•Safelyrelieveallpressureinthehydraulic
systembeforeperforminganyworkonthe
hydraulicsystem.
•Makesureallhydraulicoilhosesandlines
areingoodconditionandallhydraulic
connectionsandttingsaretightbefore
applyingpressuretohydraulicsystem.
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