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Spark Plug
1. Cleanareaaroundthesparkplugbase.Donotsandblastspark
plug.Sparkplugshouldbecleanedbyscrapingorwirebrushing
andwashingwitha commercialsolvent
2. Removeandinspectthesparkplug.Checkgap tomakesureit is
setat.030".See Figure11.
f- -._
Electrode Porcelain
3. Replacethesparkplug(Champion®RC12YC)oncea season.
Muffler
o inspectmufflerperiodically,and replaceifnecessary.Replace-
mentpartsforthemufflermustbethesameand installedin the
same theoric
Temperatureof mufflerandnearbyengineareasmayexceed150°F
(65°0).Avoidcontactwiththeseareas.
Clean Engine
o Dailyor beforeeveryuse,cleangrass,chafforaccumulated
debrisfromengine.Keeplinkage,spring,andcontrolsclean.
Keepareaaroundandbehindmufflerfreeofanycombustible
debris.
Keepingenginecleanallowsair movementaroundengine.
• Enginepartsshouldbe keptcleanto reducetheriskofoverheat-
ingandignitionofaccumulateddebris.
Donotusewatertocleanengineparts.Watercouldcontaminatefuel
system.Usea brushordrycloth.
Carburetor Adjustment
Thecarburetoron thisengineisnotadjustable.
LUBRICATION
Front Wheel Bearings
Lubricatethefrontwheelbearingswitha No.2 multipurposelithium
greaseafterevery25hoursofoperation.Thelubefittingsarelocated
in therimhubinsideeachfrontwheel.
Deck Spindles and Idler Bracket
Lubricatethedeckspindlesandidlerbracketwitha No.2 multipurpose
lithiumgreaseafterevery10hoursofoperation.
• Thedeckspindlelubefittingsareinthespindlehousings,and
canonlybeaccessedfromtheundersideof thedeck.
• Lubricatetheidlerbracketthroughthelubefittinginthetopofthe
shoulderbolt.Usea pressuregreaseguntolubricatethespindles
and idlerbracket.
Pivot Points & Linkage
Lubricateallthepivotpointsonthedrivesystem,parkingbrakeandlift
linkageatleastoncea seasonwithlightoil.
Rear Wheels
Therearwheelsshouldberemovedfromtheaxlesoncea season.
Lubricatetheaxlesandtherimswellwithan all purposegreasebefore
re-installingthem.
IVT Transmission
TheIVTtransmissionissealedatthefactoryandismaintenancefree.
Thefluidlevelcannotbe checkedandcannotbe changed.Keepthe
areaaroundthetransmissioncoolingfanfreeofgrassanddebrisatall
times.
Steering
Thesteeringarms,pivotshafts,andaxlesmustbelubricatedif ever
thesteeringeffortincreases,or afterevery25 hoursofoperation.
Lubricateusinga pressuregreasegunanda No.2 multipurpose
lithiumgrease.
1. Applygreasethroughthelubefittingonthe RHandLH(right
handandleft hand,fromoperator'sposition)steeringarmswhich
are locatedat rearwardendofthetwo steeringdraglinks.See
Figure12.
f
Steering SteeringArm
LubeFitting
Tab
AxlePivotBar
21
Lubefittings
Figure12
Locatethelubefittingsforthepivotshaftandaxleonthefrontof
oneendof theaxlepivotbar.Applygreasethroughthetwolube
fittings,thenrepeattolubricatetheotherendof thepivotbar.See
Figure12.