31A-3CDE799 MTD snow thrower

User Manual - Page 12

For 31A-3CDE799.

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General Recommendations
1. Alwaysobservesafetyruleswhen performingany maintenance.
2. Thewarrantyon thissnowthrowerdoesnot coveritemsthat have
beensubjectedto operatorabuseor negligence.To receivefull
valuefromthe warranty,operatormust maintainthe snowthrower
as instructedin thismanual.
3. Periodicallycheckall fastenersand hardwareto makesure these
aretight.
_ WARNING: Before servicing,repairing,lubricatingor
inspecting,disengageall controlsand stop engine.
Wait until all moving partshavecometo a complete
stop.Disconnectsparkplugwire and ground itagainst
the engineto preventunintendedstarting.Alwayswear
safetyglassesduringoperation or while performing
anyadjustmentsor repairs.
Replacing the Shave Plate
and Skid Shoes
Theshaveplateandskidshoesonthe bottomof the snowthrowerare
subjectto wear.These shouldbe checkedperiodicallyand replaced
whennecessary
1. Toreplace,removetwocarriageboltsandnutssecuringeachskidshoe
totheaugerhousing.SeeFig.10
2. Reassemblenewskidshoeswithhardwarejustremoved.Makesurethe
skidshoesareadjustedtobe level.
3. Toremoveshave plate:Removebothskid shoesand hardware
includingcarriageboltsandnutswhichattachshaveplatetothe
snowthrowerhousing.Forlocationof shaveplate,see Figure10.
4. Reassemblenewshaveplate,makingsureheadsof thecarriagebolts
aretothe insideof thehousing.Reinstallskidshoes.Tightensecurely.
Servicing Augers
Theaugersaresecuredto the spiralshaftwithfourshearpins and
cotterpins.Ifyou hit a foreignobjector icejam,the snowthroweris
designedso thatthe pinsmayshear.Referto Figure10.
If the augersdo notturn,checkif the pins havesheared.Replace,if
needed,withpropershearpins.Referto item42 on page 19 for part
number.
IMPORTANT:NEVERreplacetheaugershearpins withstandardpins
orfasteners.Anydamagetothe augergearboxorothercomponents,
as a resultof doingso,will NOTbe coveredby yoursnowthrower's
warranty.
Lubrication
Fora viewof the lubricationpointson the snowthrower,see Figure11.
1. Lubricatepivot pointson the auger controland drivecontrolwith a
lightengineoiloncea season.
2. Lubricatetheaugeridlerbracketwithalightengineoil oncea season.
Engine
Listedbelowaregeneralrecommendationsabout maintainingyour
snowthrowerengine.
1. Beforeoperatingsnowthrower,checkthe oil level.
2. Changeengineoil afterfirst two hoursof operationand every 25
hoursthereafter.
f
ill .
iii/
iiiii
iiiii
ShearPin
CotterPin
Skid Shoe
Carriage Bolt
Shave Plate /
LockNut CarriageBolt
LockNut J
Figure10
Lubricate
Figure11
3. Cleansparkplugand resetthe electrodegap to 0.030"at least
once a seasonor every100hoursof operation;replaceevery200
hoursof operation.
Check V-Belts
Followinstructionsbelowto checkconditionof drive beltsevery 50
hoursof operation.
1. Removethe plasticbeltcoveron the frontof the engineby
removingthe self-tappingscrewand pressingthe plastictabs to
releasethe beltcover.
2. Visuallyinspectfor frayed,cracked,or excessivelywornout belts.
Replace,if necessary,followinstructionsbelow.
Replacing Belts
NOTE:Therearetwobeltsonthissnowthrower:an augerbeltanddrive
belt.It isrecommendedthatbothbeltsbereplacedat thesametime.
1. Removethe sparkplugwirefromsparkplugandgroundit against
the engineto preventaccidentalstarting.
2. Draingasolinefromthe gas tankbelowV2tankor run the machine
belowhalf a tank,or placeapieceof plasticsheetunderneaththe
gas cap to preventgasolineleakage.
12
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