MTD 31A-3BAD729 - Maintenance Recommendatins; Replacing the Shave Plate and Skid Shoes; Servicing Augers; Engine Maintenance

WARNING
Before lubricating,
repairing;or;
inspecting,disengage
a,controlsandstop
enginei Wait until all
moving partshave
come to a complete
stop, Disconnectthe
groundit againstthe
to prevent
unintended starting:
Ifauger continuesto
rotatewiththe Control
disengagedl shut off
engineand rezadjust.
l
.
General Recommendations ShearPin "_
1. Alwaysobservesafetyruleswhen performingany Cotter Pin
maintenance.
2. Thewarrantyon thissnowthrowerdoesnot cover Skid Shoe
itemsthathavebeensubjectedto operatorabuseor
negligence.Toreceivefull valuefromthe war-
ranty,operatormustmaintainthesnowthroweras
instructedin thismanual.
Periodicallycheckallfastenersand hardwareto
makesurethesearetight.
WARNING: Beforeservicing, repairing, ShavePlate
_ lubricatingor inspecting,disengageall He×Nut Carriage
controlsand stopengine.Wait until all
Bolt HexNut
J
moving parts have come to a complete j/
stop. Disconnect spark plug wire and Figure9
ground it against the engineto prevent
unintendedstarting. Alwayswearsafety
glasses during operation or while per-
formingany adjustmentsor repairs.
Replacing the Shave Plate
and Skid Shoes
Theshaveplateand skidshoesonthe bottomof the
snowthroweraresubjectto wear.Theseshouldbe
checkedperiodicallyandreplacedwhennecessary
Toreplace,removetwocarriageboltsandhexnuts
securingeachskidshoetotheaugerhousing.SeeFig.9
2. Reassemblenewskidshoeswithhardwarejustremoved.
Makesuretheskidshoesareadjustedtobelevel.
3. To removeshave plate: Removeboth skidshoes
andhardwareincludingcarriagebolts,andhex
nutswhichattachshaveplateto the snowthrower
housing.Forlocationofshaveplate,seeFigure9.
4. Reassemblenewshaveplate,makingsureheads
ofthecarriageboltsareto the insideof the housing.
Reinstallskidshoes.Tightensecurely.
Servicing Augers
Theaugersaresecuredtothespiralshaftwithfour
shearpinsandcotterpins.If youhita foreignobjector
icejam, thesnowthrowerisdesignedso thatthe pins
mayshear.Referto Figure9.
If theaugersdo notturn,checkif thepins havesheared.
Replace,if needed,with propershearpins.Referto
item42on page17for part number.
IMPORTANT:NEVERreplacetheaugershearpinswith
standardpinsorfasteners.Anydamageto theauger
gearboxorother components,asa resultof doingso,
willNOTbe coveredbyyoursnowthrower'swarranty.
Lubrication
Fora viewofthelubricationpointson thesnowthrower,
seeFigure10.
1. Lubricatepivotpointson theaugercontrolanddrive
controlwitha lightengineoil oncea season.
Figure10
J
2. Lubricatetheaugeridlerbracketwitha lightengineoil
oncea season.
Engine
Listedbelowaregeneralrecommendationsabout
maintainingyoursnowthrowerengine.Forfurtherdetails,
refertotheaccompanyingenginemanual.
1. Beforeoperatingsnowthrower,checkthe oil level.
2. Changeengineoil afterfirst two hoursof operation
andevery25 hoursthereafter.
3. Cleansparkplugand resettheelectrodegapto
0.030"atleastoncea seasonorevery100hoursof
operation;replaceevery200hoursof operation.
Check V-Belts
Followinstructionsbelowtocheckconditionofdrivebelts
every50 hoursofoperation.
1. Removetheplasticbeltcoveronthe frontof theengine
byremovingtheself-tappingscrewandpressingthe
plastictabsto releasethebeltcover.SeeFigure11
2. Visuallyinspectfor frayed,cracked,orexcessively
wornoutbelts.Replace,if necessary,following
instructionson page13.
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