Toro 74882 - Servicing the Spark Plug

ChangingtheEngineOilFilter
ServiceInterval:Every200hours—Changetheoillter.
(moreoftenindusty,dirtyconditions)
Note:Changetheengineoilltermorefrequentlywhen
operatingconditionsareextremelydustyorsandy.
1.Draintheoilfromtheengine;refertoChangingthe
EngineOil(page30).
2.Changetheengineoillter(Figure35).
G008748
3/4
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Figure35
Note:Ensuretheoilltergaskettouchestheengine
andthenanextra3/4turniscompleted.
3.Fillthecrankcasewiththepropertypeofnewoil;refer
toChangingtheOil.
ServicingtheSparkPlug
ServiceInterval:Every100hours—Checkthesparkplug(s).
Makesuretheairgapbetweenthecenterandsideelectrodes
iscorrectbeforeinstallingthesparkplug.Useasparkplug
wrenchforremovingandinstallingthesparkplug(s)anda
gappingtool/feelergaugetocheckandadjusttheairgap.
Installanewsparkplug(s)ifnecessary.
Type:NGKBPR4ES(orequivalent)
AirGap:0.76mm(0.030inch)
RemovingtheSparkPlug
1.DisengagethePTO,movethemotioncontrolleversto
theneutrallockedpositionandsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
Figure36
Note:Blowingoutthecavitywithcompressedairis
usuallythemosteffectivemethodforcleaning.The
sparkplugismostaccessiblewhentheblowerhousing
isremovedforcleaning.
CheckingtheSparkPlug
Important:Nevercleanthesparkplug(s).Always
replacethesparkplug(s)whenithasablackcoating,
wornelectrodes,anoilylm,orcracks.
Ifyouseelightbrownorgrayontheinsulator,theengineis
operatingproperly.Ablackcoatingontheinsulatorusually
meanstheaircleanerisdirty.
Setthegapto0.76mm(0.030inches).
G008794
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Figure37
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