Toro 74922 - Servicing the Engine Oil

Figure47
1.Air-cleanerclamps
3.Primaryairlter
2.Air-cleanercover
4.Secondaryairlter
ServicingthePrimaryFilter
1.Donotcleanthepaperlter,replaceit(Figure47).
2.Inspecttheelementfortears,anoilylm,ordamageto
therubberseal.
3.Replacethepaperelementifitisdamaged.
ServicingtheSecondaryFilter
Donotcleanthesecondarylter,replaceit.
Important:Donotattempttocleanthesecondarylter.
Ifthesecondarylterisdirty,thentheprimarylteris
damagedandyoushouldreplacebothlters.
InstallingtheFilters
Important:Topreventenginedamage,alwaysoperate
theenginewithbothairltersandthecoverinstalled.
1.Ifinstallingnewlters,checkeachlterforshipping
damage.
Note:Donotuseadamagedlter.
2.Ifthesecondarylterisbeingreplaced,carefullyslide
itintothelterbody(Figure47).
3.Carefullyslidetheprimarylteroverthesecondary
lter(Figure47).
4.Ensurethatitisfullyseatedbypushingontheouter
rimofthelterwhileinstallingit.
Important:Donotpressonthesoftinsidearea
ofthelter.
5.Installtheair-cleanercoverwiththebreathercapdown,
androtatesothattheretainingclampslockthecover
inplace(Figure47).
ServicingtheEngineOil
OilType:Detergentoil(APIserviceSG,SH,SJ,orhigher)
OilCapacityfor74923,74925,and74927engines:witha
lterchange,2.3L(77oz);withnolterchange,2.1L(70oz)
OilCapacityfor74922,78922,and78924engines:witha
lterchange,2.1L(71oz);withnolterchange,1.8L(61oz)
Viscosity:Seethetablebelow .
Figure48
Note:Useofmulti-gradeoils(5W-20,10W-30,or10W-40)
willincreaseoilconsumption.Checktheoillevelmore
frequentlywhenusingthem.
CheckingtheEngine-OilLevel
ServiceInterval:Beforeeachuseordaily
Note:Checktheoilwhentheengineiscold.
WARNING
Contactwithhotsurfacesmaycausepersonal
injury.
Keephands,feet,face,clothing,andotherbody
partsawayfromthemuferandotherhotsurfaces.
Important:Donotoverllthecrankcasewithoil
becausedamagetotheenginemayresult.Donotrun
enginewithoilbelowtheLowmarkbecausetheengine
maybedamaged.
1.DisengagethePTO,movethemotion-controlleversto
theneutral-lockedposition,andsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position(Figure49).
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