Operator's Manual

EngineMaintenance
EngineSafety
•Shutofftheengineandremovethekeybefore
checkingtheoiloraddingoiltothecrankcase.
•Donotchangethegovernorspeedoroverspeed
theengine.
ServicingtheEngineOil
UnderstandingtheEngine-Oil
Specications
OilType:Usehigh-quality,low-ashengineoilthat
meetsorexceedsthefollowingspecications:
•APIservicecategoryCJ-4orhigher
•ACEAservicecategoryE6
•JASOservicecategoryDH-2
CrankcaseCapacity:
•Model31900and31901:3.4L(3.6USqt)with
thelter
•Model31907and31909:6.6L(7USqt)withthe
lter
Viscosity:Usethefollowingengineoilviscosity
grade:
•Preferredoil:SAE15W-40(above0°F)
•Alternateoil:SAE10W-30or5W-30(all
temperatures)
ToroPremiumEngineOilisavailablefromyour
authorizedTorodistributorineither15W-40or10W-30
viscositygrades.
CheckingtheEngine-OilLevel
ServiceInterval:Beforeeachuseordaily
Thebesttimetochecktheengineoiliswhenthe
engineiscoolbeforeithasbeenstartedfortheday.
Iftheenginehasalreadybeenrun,allowtheoilto
drainbackdowntothesumpforatleast10minutes
beforechecking.
IftheoillevelisatorbelowtheAddmarkonthe
dipstick,addoiltobringtheoilleveltotheFullmark.
Donotoverlltheenginewithoil.
Important:Checktheengineoildaily.Ifthe
engine-oillevelisabovetheFullmarkonthe
dipstick,theengineoilmaybedilutedwithfuel.If
theengine-oillevelisabovetheFullmark,change
theengineoil.
Important:Keeptheengine-oillevelbetweenthe
upperandlowerlimitsonthedipstick.Theengine
mayfailifyourunitwithtoomuchortoolittleoil.
1.Raisethehood;refertoRaisingtheHood(page
47).
2.Checktheengine-oillevel;refertoFigure49.
g031256
Figure49
ChangingtheEngineOilandFilter
ServiceInterval:Every500hours—Changethe
engineoilandlter.
Every250hours—Changetheengineoiland
lter(whenthemachineisusedindirtyordusty
conditions)[Model31900and31901only].
1.Starttheengineandletitrun5minutestoallow
theoiltowarmup.
2.Withthemachineparkedonalevelsurface,
engagetheparkingbrake,shutofftheengine,
removethekey,andwaitforallmovingpartsto
stopbeforeleavingtheoperatingposition.
3.ChangetheengineoilasshowninFigure50.
50