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MTD 31AS3DDE729 Operator's Manual
MTD 31AS3DDE729 Operator's Manual

MTD 31AS3DDE729 Operator's Manual

24" two-stage 3-speed snow thrower
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Safety ,, Assembly ,, Operation ,, Tips & Techniques ,, Maintenance ,, Troubleshooting ,, Parts Lists ,, Warranty
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"Tw0-Stage 3- peed n0wThr0wer-
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iMPORTANT
READ SAFETY
RULES AND iNSTRUCTiONS
CAREFULLY
BEFORE
OPERATION
Warning:
This unit is equippedwithan internal combustionengineand shouldnot be usedon or nearany unimproved forest-covered, b rush-
coveredor grass-covered land unlesstheengine'sexhaustsystemis equippedwith a sparkarrestermeetingapplicablelocalor statelaws(if any).
If a sparkarresteris used,it shouldbe maintainedin effectiveworkingorder by the operator.In theState of Californiathe aboveis requiredbylaw
(Section4442 of the CaliforniaPublicResources Code). Otherstatesmay havesimilarlaws.Federallaws applyon federallands.A sparkarrester
for the muffleris availablethroughyour nearestengineauthorizedservicedealeror contactthe servicedepartment,RO. Box361131 Cleveland,
Ohio 44136-0019.
PRINTEDIN U.S.A.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
FORMNO. 769-01939
07/2005

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Summary of Contents for MTD 31AS3DDE729

  • Page 1 If a sparkarresteris used,it shouldbe maintainedin effectiveworkingorder by the operator.In theState of Californiathe aboveis requiredbylaw (Section4442 of the CaliforniaPublicResources Code). Otherstatesmay havesimilarlaws.Federallaws applyon federallands.A sparkarrester for the muffleris availablethroughyour nearestengineauthorizedservicedealeror contactthe servicedepartment,RO. Box361131 Cleveland, Ohio 44136-0019. FORMNO. 769-01939 07/2005 PRINTEDIN U.S.A. MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019...
  • Page 2 You can locate the model plate by standing at the operating position and looking down at the rear of the snow thrower. This information will be necessary to use the manufacturer's MTD LLC P.O. 361131 web site and/or obtain assistance from the Customer Support CLEVELAND, OH 44136 Department or an authorized service dealer.
  • Page 3 1. KEEP AWAY FROMROTATING IMPELLER ANDAUGER. C ONTACT WITH IMPELLER OR AUGER CAN AMPUTATE H ANDS ANDFEET. USECLEAN-OUT TOOLTOUNCLOG DISCHARGE C HUTE. DISENGAGE CLUTCH L EVERS, STOP ENGINE, ANDREMAIN BEHIND HANDLES U NTIL ALL MOVING PARTS HAVE STOPPED BEFORE UNCLOGGING ORSERVICING MACHINE. TOAVOIDTHROWN OBJECTS INJURIES, NEVER D IRECT D ISCHARGE AT BYSTANDERS.
  • Page 4 WARNING: Engine Exhaust, some of its constituents, and certain vehicle compo- nents contain or emit chemicals known to State of Californiato cause cancer and birth defects or other reproductiveharm. DANGER: This machine was built to be operated according to the rules for safe operation in this manual.
  • Page 5 Operation Maintenance & Storage 1. Donot put hands or feet near rotatingparts, inthe 1. Nevertamper withsafetydevices.Checktheir proper auger/impellerhousingor chuteassembly.Contactwiththe operationregularly.Referto the maintenanceandadjust- mentsectionsof this manual. rotatingparts can amputatehands andfeet. 2. The auger/impellercontrolleveris a safetydevice.Never 2. Beforecleaning,repairing,or inspectingmachinedisen- bypassits operation.Doingso makesthe machineunsafe gageall control leversandstop the engine.Wait untilthe and may causepersonalinjury.
  • Page 6 IMPORTANT: This unit isshippedwith the enginefull of oil. Afterassembly,seethe EngineOwner'smanualfor fueland oil details. Removing From Carton 1. Cut the cornersof thecarton and lay the sidesfiat on the ground. Removeall packinginserts. 2. Theupper handleispackagedunattachedto the Adjustment snowthrower,thoughconnectedby canes. Move the snowthrowerand upperhandleout of the carton. 3.
  • Page 7 NOTE:Operation of this snowthroweron gravelis not recommended as loosegravelcanbe easilypicked up and thrownbythe augercausingpersonal i njuryor damageto the snowthrower.If youhaveto operateit on gravel,keepskidshoeinhighestpositionfor maximum clearance. High Position 1. Adjustskidshoesbyloosening two hexnutsand MiddlePosition carriage boltson eachskidshoe,and moveskidshoe LowPosition tothedesiredposition.SeeFigure4. 2. Makecertainthe entirebottomsurfaceof skid shoe is againstthe groundto avoidunevenwearon the skid shoes.
  • Page 8 Gasoline Cap Upper Chute Chute Assembly. Clean-out Tool Chute Handle Knob Shave Plate Auger SkidShoe Figure 6 ARNING:Be familiar with all the controls on the snow thrower and their properoperation. Know how to stop the machine and disengage them quickly. Chute Knob NOTE:CompareFigures 6 &...
  • Page 9 Recoil Starter & Starter Handle /_Muffler Spark Oil Fill GasolineCap This motorisfitted with a recoilactionpull startand a mittengrip handlefor easyaccess whilewearinggloves or mittens. Electric Starter Button Pressingthe electricstarterbuttonengagesthe engine'selectricstarterwhenpluggedintoa 120V powersource Electric Starter Plug Requiresuse of a two-prongoutdoorextensioncord (packedwith the snowthrower)and a 120Vpower source/walloutlet.
  • Page 10 sureto wipeoff any spilledfuel beforestartingthe Before Starting Engine engine. Engine Oil 3. At the endof thejob, emptythe fueltank if the snow Theengine isshippedwith oil in it.Checkthe oil level throwerisnotgoing to be usedfor 30 days or longer. beforefirst use. Storegasolinein a clean containerand keepthe cap Stopengineand wait severalminutesbeforecheck- in placeon the container.
  • Page 11 move chokeimmediately to FULLand thengradually Clearing The Snow to 1/2then to OFF. CAUTION: Check thearea to be cleared for foreign 10.Disconnectthe powercord. Alwaysunplugfrom the objects. Removeforeign objects, if any. outlet first, and thenfrom the snowthrower. 1. Start the enginefollowingstartinginstructions. Recoil Starter 2.
  • Page 12 Speed Selector Lever Yourunit isequippedwith a 3-speedpowerpropelled Speed drivesystem. Speedposition 1,when theleveris Selector depressedall the way downtowardthe motor,isslow. Lever Speedposition2 is a little fasterand 3 is the fastest. See Figure8. Tooperatethis function,followthese instructions: 1. Shift yoursnowthroweronlywhile engineis running. 2. Releasedrivecontrol handlebeforeshifting. Operating Tips 1.
  • Page 13 To replace,removetwo carriageboltsand hexnuts Shear Pin securingeach skid shoeto the augerhousing. See Cotter Pin Figure10. 2. Reassemblenew skid shoeswith hardwarejust removed.Makesure shoes are adjusted to be level. 3. To remove shave plate: Removeboth skid shoes and hardwareincludingcarriagebolts,and hex nuts whichattachshaveplateto thesnow thrower housing.Forlocationof shaveplate,see Figure10.
  • Page 14 Replacing Belts NOTE: Thereare two beltson this snow thrower:an Bracket augerbelt and drivebelt. It is recommended that both belts be replacedat the same time. 1. Remove thesparkplugwirefromsparkplugandground Maintenance it against t heenginetoprevent a ccidental s tarting. 2. Draingasolinefrom the gastank below1/2 tank or run the machinebelowhalf a tank,or placea piece of plasticsheet underneath the gas cap to prevent gasolineleakage.
  • Page 15 6. After removingthe beltcover,slip the frontauger beltoff of the enginepulleyby pushingit forwardand rollingin off of the pulley. 7. Pushdownon the unit's handlefurtheropeningthis areaand providingbetteraccessto the augerpulley. Youmay wish to placea wood block underthe auger housingto hold the unit open.See Figure14 Maintenance 8.
  • Page 16 If the snowthrowerwill notbe usedfor30 days or longer,or ifit istheend of the snowseasonwhenthe using fuel stabilizer. Neveruse engine or ARNING:Donot drain carburetor i f last possibilityof snowis gone,the equipmentneedsto carburetor cleaningproducts in the fuel be stored properly.Followstorageinstructionsbelowto tank or permanentdamagemayoccur. ensuretop performancefrom the snowthrowerfor many NOTE:Fuelstabilizer(such as STA-BIL) is an accept- moreyears.
  • Page 17 Problem Possible Cause(s) Solution Engine fails to start tank empty,or stale fuel tankwith cleanfresh gasoline: 21 Blockedfuel line Cleanfuel line: & Keynot snappedintopiace 4. Spark plug w re disconnected 4, Connectwireto sparkp!ug. & Fau!tyspaik plug c!ean sparkplug, readjustgap;or replace: Engine not primed 61 Prime enginefourtimeSl f ooded fromexcessive 7:Eng...
  • Page 18 For parts and/or accessories please call 1-800-800-7310,or 1-330-220-4683. www.mtdproducts.com...
  • Page 19 684-04037 ChuteAssembly 731-04218B Impeller 710-04071 CarriageBolt 5/16-18x 1.0" 732-0611 ExtensionSpring 736-0174 WaveWasher 710-0451 CarriageBolt 5/16-18 ShoulderScrew3/8-16 712-3068 FlangeLock Nut,5/16-18 738-0281 720-04032 Nut Knob5/16-18 741-0245 Hex FlangeBearing 731-04388A ChuteHandle 741-0309 Ball Bearing 731-04426A UpperChute 750-04191 Spacer 736-0159 FiatWasher.349 x .879x .063 756-04035 FlatIdler 731-04127...
  • Page 20 Model Series 3DD...
  • Page 21 Part List: 710-0696 HexBolt 3/8-24x 0.875" 710-0449 CarriageScrew5/16-18x 2.25" Stage 710-0106 HexScrew1/4-20x 1.25" 710-1245B Lock Bolt5/16-24 x 0.875" 731-05364 BeltCover 710-1260A Screw,5/16-18x .75" 736-0247 FlatWasher,.4061D x 1.250D 712-04064 FlangeLock Nut 1/4-20 Thrower 720-0284 Lock Nut Knob5/16-18 736-0505 FiatWasher,.341D x 1.500D 725-0157 CableTie 748-04067 Pulley:Adapter,.75Dia.
  • Page 22 For parts and/or accessories please call 1-800-800-7310,or 1-330-220-4683. www.mtdproducts.com...
  • Page 23 iii!iiiii _ i!il _ NOTES: Use this page to make notes and write down For parts and/or accessories please call 1-800-800-7310,or 1-330-220-4683. www.mtdproducts.com...
  • Page 24 To locate the dealer in your area, check your Yellow Pages, or lasts, so the aboveexclusionsor limitationsmay notapplyto you. contact MTD LLC at RO. Box 361131,Cleveland, Ohio 44136-0019,or In no eventshall recoveryof any kind be greaterthan theamountof the call 1-800-800-7310 or 1-330-220-4683 or log on to our Web site at purchasepriceof the productsold.

This manual is also suitable for:

3dd series