Toro 74480 - Engine Maintenance; Engine Safety; Servicing the Engine

EngineMaintenance
EngineSafety
•Shutofftheenginebeforecheckingtheoilor
addingoiltothecrankcase.
•Keepyourhands,feet,face,clothing,andother
bodypartsawaythemuferandotherhotsurfaces.
ServicingtheEngine
Important:Refertoyourengineowner’smanual
foradditionalmaintenanceprocedures.
g036714
Figure38
ServicingtheAirCleaner
ServiceInterval:Every250hours—Replacethe
primaryairlter(moreoftenindirty
ordustyconditions).
Every250hours—Checkthesafetyairlter
(moreoftenindirtyordustyconditions).
Every500hours—Replacethesafetyairlter
(moreoftenindirtyordustyconditions).
Note:Servicetheaircleanermorefrequentlyif
operatingconditionsareextremelydirtyordusty.
RemovingtheFilters
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch(PTO),andengagethe
parkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Releasethelatchesontheaircleanerandpull
theair-cleanercoverofftheair-cleanerbody
(Figure39).
g001883
Figure39
1.Air-cleanerbody4.Air-cleanercover
2.Primarylter5.Safetylter
3.Latch
4.Cleantheinsideoftheair-cleanercoverwith
compressedair.
5.Gentlyslidetheprimarylteroutofthe
air-cleanerbody(Figure39).
Note:Avoidknockingthelterintothesideof
thebody.
6.Removethesafetylteronlytoreplaceit.
InspectingtheFilters
1.Inspectthesafetylter.Ifitisdirty,replaceboth
thesafetyandprimarylters.
Important:Donotattempttocleanthe
safetylter.Ifthesafetylterisdirty,then
theprimarylterisdamaged.
2.Inspecttheprimarylterfordamagebylooking
intothelterwhileshiningabrightlightonthe
outsideofthelter.Iftheprimarylterisdirty,
bent,ordamaged,replaceit.
Note:Holesinthelterappearasbrightspots.
Donotcleantheprimarylter.
InstallingtheFilters
Important:Topreventenginedamage,always
operatetheenginewithbothairltersandthe
coverinstalled.
1.Ifyouareinstallingnewlters,checkeachlter
forshippingdamage.
Note:Donotuseadamagedlter.
2.Ifyouarereplacingtheinnerlter,carefullyslide
itintothelterbody(Figure39).
3.Carefullyslidetheprimarylteroverthesafety
lter(Figure39).
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