Toro 37779 - Lubricating the Hex Shaft; Replacing the Spark Plug

LubricatingtheHexShaft
ServiceInterval:Yearly—Lubricatethehexshaft.
Lightlylubricatethehexshaftyearlywithautomotiveengine
oil(Figure44).
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Figure44
1.Hexshaft
3.Rubberwheel
2.Steelfrictionpulley
Important:Donotgetoilontherubberwheelorthe
steelfrictionpulleybecausethetractiondrivewillslip
(Figure44).
1.Drainthegasolinefromthefueltank.
2.Tipthemachineforwardontoitsaugerhousingand
blockitsothatitcannotfall.
3.Removethebackcover(Figure45).
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1
Figure45
1.Screws
4.MovethespeedselectorlevertoPositionR2.
5.Dipyourngerinautomotiveengineoilandlightly
lubricatehexshaft.
6.MovethespeedselectorlevertoPosition6.
7.Lubricatetheotherendofthehexshaft.
8.Movethespeedselectorleverforwardandrearward
afewtimes.
9.Installthebackcoverandreturnthemachinetothe
operatingposition.
ReplacingtheSparkPlug
ServiceInterval:Every100hours—Replacethesparkplug.
WARNING
Replacingthesparkplugwhiletheengineishot
canresultinburns.
Waituntiltheengineiscooltoreplacethespark
plug.
UseaTorosparkplugorequivalent(Champion®RN9YCor
NGKBPR6ES).
1.Removetheboot(Figure46).
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1
Figure46
1.Sparkplugboot
2.Cleanaroundthebaseofthesparkplug.
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Figure47
3.Removeanddiscardtheoldsparkplug.
Note:Youwillneedaratchetwrenchextensionto
removethesparkplug.
4.Setthegapbetweentheelectrodesonanewsparkplug
at0.030inch(0.76mm)(Figure48).
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