Toro 74991 - Replacing the Hydraulic Filters and Hydraulic Oil

g015459
Figure91
Eitherdipstickwillbeusedinthemachine
1.Full3.H—meanshighlevel
2.Add4.Dipsticklocationsunder
seat
WARNING
Hydraulicoilescapingunderpressure
canpenetrateskinandcauseinjury.
•Ifhydraulicoilisinjectedintotheskin
itmustbesurgicallyremovedwithin
afewhoursbyadoctorfamiliarwith
thistypeofinjury.Gangrenemay
resultifthisisnotdone.
•Keepbodyandhandsawayfrompin
holeleaksornozzlesthatejecthigh
pressurehydraulicoil.
•Usecardboardorpapertond
hydraulicleaks.
•Safelyrelieveallpressureinthe
hydraulicsystembeforeperforming
anyworkonthehydraulicsystem.
•Makesureallhydraulicoilhosesand
linesareingoodconditionandall
hydraulicconnectionsandttings
aretightbeforeapplyingpressureto
hydraulicsystem.
ReplacingtheHydraulicFilters
andHydraulicOil
ServiceInterval:Aftertherst250hours—Change
thehydraulicltersandhydraulicoil
whenusinganytypeofoil.
Every250hours—Changethehydrauliclters
andhydraulicoilwhenusingMobil
®
1oil(more
oftenindirtyordustyconditions).
Every500hours—Changethehydrauliclters
andhydraulicoilwhenusingToro
®
HYPR-OIL
™
500hydraulicoil(moreoftenindirtyordusty
conditions).
Toreplacethehydraulicoil,theltersneedtobe
removed.Replacebothatthesametime.Referto
theoilspecicationsunderServicingtheHydraulic
System(page61)forthecorrectoil.
1.Disengagetheblade-controlswitch(PTO),move
themotion-controlleverstotheneutral-locked
positionandsettheparkingbrake.
2.Stoptheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Raisethemachineandsupportitwithjack
stands(Figure92).
g008970
Figure92
1.Jackstands
4.Removeboththemowerbeltandthepump
drivebelt.Thiswillpreventoilgettingonthe
belts.RefertoBeltMaintenance(page57).
5.Placeadrainpanunderthelter,removethe
oldlterandwipethesurfaceclean(Figure93).
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