Toro 74991 Z Master Professional 5000 Series - Page 41

RemovingtheSparkPlug
1.Shutofftheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
2.Disengagetheblade-controlswitch(PTO),movethe
motion-controlleverstotheNEUTRAL-LOCKposition,
andsettheparkingbrake.
3.Removethelefthydraulicunitshroudintheorder
listedwithFigure56.
Note:Thisgivesyouaccesstothefrontsparkplug.
g029645
Figure56
1.Pullthistabouttothe
sideinthedirectionofthe
arrow.
3.Pulltheshroudoffthis
frametabinthedirection
ofthearrow.
2.Pulltheshroudoffthis
frametabinthedirection
ofthearrow.
4.Shroud
4.Removethesparkplug(Figure57).
g029646
B
A
g027478
Figure57
5.Installthelefthydraulicunitshroud(Figure56).
CheckingtheSparkPlug
Important:Replacethesparkplug(s)whenithas:a
blackcoating,wornelectrodes,anoilylm,cracksor
reuseisquestionable.
Ifyouseelightbrownorgrayontheinsulator,theengineis
operatingproperly.Ablackcoatingontheinsulatorusually
meanstheaircleanerisdirty.
Setthegapto0.76mm(0.030inches).
B
A
g027479
Figure58
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