Toro 74534TE GrandStand - Servicing the Spark Plug

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B
A
C D
E
F
3/4
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Figure46
Note:Ensurethattheoil-ltergaskettouchesthe
engineandthenanextra3/4turniscompleted.
4.Fillthecrankcasewiththepropertypeofnewoil;refer
toChangingtheEngineOil(page36).
ServicingtheSparkPlug
ServiceInterval:Every100hours
Makesurethattheairgapbetweenthecenterandside
electrodesiscorrectbeforeinstallingthesparkplug.
Useasparkplugwrenchforremovingandinstallingthespark
plug(s)andagappingtool/feelergaugetocheckandadjust
theairgap.Installanewsparkplug(s)ifnecessary.
TypeforallEngines:NGK
®
BPR4ESorequivalent
AirGap:0.75mm(0.03inch)
RemovingtheSparkPlug
1.DisengagethePTO,movethemotion-controlleversto
theNEUTRAL-LOCKposition,andsettheparkingbrake.
2.Shutofftheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.RemovethesparkplugasshowninFigure47.
B
A
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Figure47
CheckingtheSparkPlug
Important:Donotcleanthesparkplug(s).Always
replacethesparkplug(s)whenithasablackcoating,
wornelectrodes,anoilylm,orcracks.
Ifyouseelightbrownorgrayontheinsulator,theengineis
operatingproperly.Ablackcoatingontheinsulatorusually
meanstheaircleanerisdirty.
Setthegapto0.75mm(0.03inch).
B
A
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Figure48
37