Craftsman 88970 Operation Manual - Page 20

Lubrication

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3. Measurethe plug gap with a feelergauge.Correctas necessary f by bendingsideelectrode.See Figure20. Thegap shouldbe set to .02-.03inches (0.60-0.80ram). 4. Checkthat thespark plug washeris in good conditionand thread the sparkplug in by handto preventcross-threading. 5. Afterthe sparkplug is seated,tightenwith a spark plugwrenchto compressthe washer. NOTE:Wheninstallinga newsparkplug,tighten 1/2-turnafter the spark plugseatsto compressthe washer.Whenreinstallinga used spark plug,tighten 1/8-to 1/4-turnafter the sparkplug seatsto compressthe washer. Electrode .02=.03 in. (0.60=0.80 rnrn) hot and can ine. J Figure20 LUBRICATION Gear Shaft Thegear (hex)shaft shouldbe lubricatedat least oncea seasonor afterevery 25 hoursof operation. 1. Topreventspillage,removeall fuel fromtank by runningengine until it stops. 2. Carefullypivotthe snowthrowerup and forwardso that it restson theauger housing. 3. Removethe lowerframecover fromthe undersideof the snow throwerby removingthe self-tappingscrewswhich secureit. 4. Applya lightcoatingof engineoil (or 3-in-1oil) to the hexshaft. See Figure21. NOTE:Whenlubricatingthe hexshaft, be carefulnotto get any oil on thealuminumdriveplateor rubberfrictionwheel. Doingsowill hinder the snowthrower'sdrive system.Wipeoff anyexcessor spilledoil. Wheels At least oncea season,removebothwheels.Cleanand coat theaxles with a multipurposeautomotivegreasebeforereinstallingwheels. Auger Shaft f At least oncea season,removethe shearpinson augershaft. Spray lubricantinsideshaft,and aroundthe spacersand flangebearings foundat eitherend of the shaft. See Figure22. Figure21 \ J Figure22 2O

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3.
Measurethe plug gap with a feelergauge.Correctas necessary
by bendingsideelectrode.SeeFigure20. Thegap shouldbe set
to
.02-.03
inches(0.60-0.80ram).
4.
Checkthatthesparkplugwasherisingoodconditionandthread
the sparkplug in by handto preventcross-threading.
5.
Afterthe sparkplug is seated,tightenwith a spark plugwrenchto
compressthewasher.
NOTE:Wheninstallinga newsparkplug,tighten1/2-turnafterthe
sparkplugseatsto compressthe washer.Whenreinstallinga used
sparkplug,tighten1/8-to 1/4-turnafterthe sparkplugseatsto
compressthewasher.
hotandcan
ine.
f
Electrode
.02=.03
in.
(0.60=0.80 rnrn)
J
Figure20
LUBRICATION
Gear
Shaft
Thegear (hex)shaft shouldbe lubricatedat least oncea seasonor
afterevery25 hoursof operation.
1.
Topreventspillage,removeall fuelfromtank byrunningengine
until it stops.
2.
Carefullypivotthe snowthrowerup and forwardso that it restson
theaugerhousing.
3.
Removethe lowerframecoverfromthe undersideof the snow
throwerbyremovingtheself-tappingscrewswhichsecureit.
4.
Applya lightcoatingof engineoil (or 3-in-1oil) to the hexshaft.
SeeFigure21.
NOTE:Whenlubricatingthe hexshaft, be carefulnotto get any oil on
thealuminumdriveplateorrubberfrictionwheel.Doingsowillhinder
the snowthrower'sdrive system.Wipeoff anyexcessor spilledoil.
Wheels
Atleastonceaseason,removebothwheels.Cleanandcoattheaxles
withamultipurposeautomotivegreasebeforereinstallingwheels.
Figure21
Auger
Shaft
At least oncea season,removethe shearpinson augershaft. Spray
lubricantinsideshaft,andaroundthespacersandflangebearings
foundateitherendoftheshaft.SeeFigure22.
f
\
2O
Figure22
J