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MTD 12A-998Q795 Operator's Manual

21" self-propelled mower

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Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty
OF
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21" Self-Propelled
Mower-
Model 998
iMPORTANT
READ SAFETY
RULES AND iNSTRUCTiONS
CAREFULLY
BEFORE
OPERATION
Warning:
This unit is equippedwith an 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.769-01020B
4/1/2005

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Summary of Contents for MTD 12A-998Q795

  • 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.769-01020B PRINTEDIN U.S.A. 4/1/2005 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 deck. This information will be necessary to use the manufacturer's web MTD LLC site and/or obtain assistancefrom the Customer Support P.O= BOX 361131 Department or an authorized service dealer.
  • Page 3 Sight and hold this levelwith a vertical tree... >:. also 15° t"b...
  • 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 The cuttingbladecontinuesto rotatefor a fewseconds after 7. Extinguishall cigarettes,cigars, pipesand othersources the engine is shut off. Neverplaceany part of the bodyin of ignition. the bladearea untilyou are surethe blade hasstopped 8. Neverfuel machineindoorsbecauseflammablevapors will rotating. accumulatein the area. 20. Neveroperate mowerwithoutpropertrail shield, discharge 9.
  • Page 6 1. Removeanypackingmaterialwhich may be between upperand lowerhandles. a. Pull up and backon upperhandleas shownin Figure1. Makecertain the lowerhandleis seated securelyintothe handle mountingbrackets. b. Tightenhandknobs securingupperhandleto lowerhandle.Make surethat eachcarriagebolt is seatedproperlyin the handle. 2. Locatehairpinclip in one holeon the weldpin on each sideof lowerhandle.
  • Page 7 c. Lift chutedoor on thegrass bag adapterand slide grass bag ontothe adapter.See Figure5. 6. Followstepsbelowto install the sidedischargechute: a. Removemulchingbaffleor grass bagadapterfrom unit by disconnecting wing nuts. b. Attachside dischargechute to unitand secure with the threewing nuts.See Figure6. 7. The cuttingheightadjustmentleveris locatedabove the rearleft wheel.
  • Page 8 Know Your Lawn Mower BladeControl Control Shift Lever Recoil Height Adjustment Lever GasolineFill WARNING The blade control mechanism is a Oil Fill safety device. Never attempt to bypass its operations. Figure 9 Now that you have set up your lawn mower for op- Shift Lever eration, get aquainted with its controls and features.
  • Page 9 WARNING: The operationof any lawn mowercan result in foreign objects being thrownintothe eyes,whichcan damageyoureyes severely.Always wear safetyglasseswhileoperating the mower,or while performing any adjustments or repairson it. Starting Engine Mower WARNING:Besure no one otherthan the operatoris standingnear the lawn mower whilestartingengine or operat- ingmower.
  • Page 10 Lubrication 1. Lubricatepivot pointson theblade controlat least oncea seasonwith lightoil. The bladecontrol must operatefreely inboth directions.See Figure11. :, Lubricate these 2. Lubricatethe wheelsat least oncea seasonwith points before lightoil (or motoroil). If wheelsare removedfor any Maintaining reassembly. reason,lubricatethe axle boltand innersurfaceof the wheelwith lightoil.
  • Page 11 Shift Lever Cable Periodicadjustmentof the six speedshiftcablemay be necessarydue to normalwearon the cable.Adjustment is neededif all six speedsdo notwork. The adjustablecablebracketis locatedon the left side of the mowerbesidetheengine.See Figure13.Start engineand placeshiftleverin the sixthspeedposition. Stop engineand disconnectspark plugwire and groundit againstengine. 1.
  • Page 12 Belt Care 1. Disconnectthe spark plug wireand groundit against the engine. 2. Drainthe fueltank or placea pieceof plasticbeneath the capto preventgasolineleakage. 3. Placeshift leverin the first positionand tip moweron its side(air cleanersideof engine up). Maintaining 4. Moveheightadjustmentleverto the highestposition. 5. Removeblade,blade adapter,and relatedhardware Your Lawn as instructed i n BladeCareabove.
  • Page 13 16.Tightenthe idler pulleyboltand lock nut halfa turn. 17.Placethe belt betweenthe two pulleyhalveson the Six Speed crankshaft.Makesureto routethe belt insidethe belt CableSlot guard pin. See Figure21. 18.Pinchboth sidesof the belt togethersothat the belt is not in the pulleygroove,and the lowerpulleycan be pushedtowardsthe engine.See Figure22.
  • Page 14 Problem Cause Remedy Enginefails to start I 1. Bladecontrol disengaged• 1. Engageblade control• Spark plug wire disconnected. 2. Connectwireto spark plug. empty 3, Fueltank or stale fue 3. Fil tank with clean fresh gasoline• 4. Enginenot primed• 4. Primeengineas instructedin "OperatingYourLawnMower".
  • Page 15 Safety Labels Found On Your Lawn Mower Labels WARNINC DONOT remove safety (or any)labels from mower for any reason,...
  • Page 17 747-0824 BladeControl 42 747-0937 Grass CatcherFrame 43 631-0071 Grass CatcherCover 731-0904A UpperControlHousing 731-0620 Drive Control 44 726-0106 Cap Nut 45 712-0429 HexNut5/16-18 731-0905A LowerControl Housing 46 731-1874 Chute Door 710-1667A C SunkTap Screw,#10 x.75 Lg 731-0906 CableMountingCap 47 732-0819 TorsionSpring 746-0711B Drive Cable- 51"...
  • Page 19 736-0314 ThrustWasher3/8 x .70 42 750-1050 FlangeSpacer 736-0569 ThrustWasher.388x .625 43 741-0124 Bearing 736-0264 FiatWasher.330ID x.630 OD 44 736-3084 FiatWasher.510ID x 1.120 OD 714-0104 CotterPin 45 682-3053 HandleBracketAssembly- LH 732-0306 Compression Spring 46 682-3052 HandleBracketAssembly- RH Par t s List 734-2044 Wheel9 x 2 47 725-0157...
  • Page 20 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.

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