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3. Measurethe pluggapwitha feelergauge.Correctas necessary
by bendingsideelectrode.See Figure20. Thegap shouldbe set
to .02-.03inches(0.60-0.80ram).
4. Checkthat thesparkplug washeris ingood conditionandthread
the sparkplugin by handto preventcross-threading.
5. Afterthe sparkplugis seated,tightenwitha sparkplugwrenchto
compressthe washer.
NOTE:Wheninstallinga newsparkplug,tighten 1/2-turnafter the
sparkplugseatsto compressthe washer.Whenreinstallinga used
sparkplug,tighten1/8-to 1/4-turnafter the sparkplugseatsto
compressthe washer.
hot andcan ine.
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Figure20
LUBRICATION
Gear Shaft
Thegear(hex)shaft shouldbe lubricatedat least oncea seasonor
afterevery25 hoursof operation.
1. Topreventspillage,removeall fuel fromtank by runningengine
until it stops.
2. Carefullypivotthe snowthrowerupand forwardso that it restson
theaugerhousing.
3. Removethe lowerframecover fromthe undersideof the snow
throwerby removingthe self-tappingscrewswhich secureit.
4. Applya lightcoatingof engineoil (or 3-in-1oil) to the hexshaft.
SeeFigure21.
NOTE:Whenlubricatingthe hexshaft, be carefulnotto get any oilon
thealuminumdriveplateor rubberfrictionwheel. Doingsowill hinder
the snowthrower'sdrive system.Wipeoff anyexcessor spilledoil.
Wheels
At leastoncea season,removebothwheels.Cleanandcoattheaxles
witha multipurposeautomotivegreasebeforereinstallingwheels.
Figure21
Auger Shaft
At leastoncea season,removethe shearpinson augershaft.Spray
lubricantinsideshaft,andaroundthe spacersandflangebearings
foundat eitherendof the shaft. SeeFigure22.
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Figure22
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