MTD 446 Operator's Manual

21" rotary mower

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Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty
OF
A
O
AL
21" Rotary Mower-
Model 446
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.769-01471A
12/14/2005

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Summary of Contents for MTD 446

  • 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.769-01471A PRINTEDIN U.S.A. 12/14/2005 MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019...
  • Page 2: Customer Support

    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.
  • Page 3 Usethispage asa guidetodetermine s lopes where youmaynotoperate s afely. D onotoperate yourlawnmower o nsuchslopes. iii_i ii_ _ :iii WARNING Do not mow on inclines with a slope in excess of 15 degrees (a rise of approximately 2-1/2 feet every 10 feet).
  • Page 4: General Operation

    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: Slope Operation

    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 mowerwithoutpropertrailshield, discharge 9.
  • Page 6 1. Removeanypackingmaterialwhich may be between upperand lowerhandles. a. Pull up and backon upperhandleas shownin Step 1.Makecertainthe 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: Grass Catcher

    5. An adjustingplateand thumb leverat each wheel positionprovidescuttingheightadjustment. a. Depresslevertowardswheel. b. Moveit to anyof the ninepositionsfor desired cutting height.SeeStep 5. c. Releaselevertowardsmowerdeck. 6. Followstepsbelowto assemblethe grasscatcher: a. Placebag overframe sothat its black plasticside uStment is at the bottom. b. Slip plasticchannelof grass bagoverhooks on the frame.See Step6.
  • Page 8: Know Your Lawn Mower

    Know Your Lawn Mower BladeControl Drive Control Recoil Starter Oil Fill/Dipstick WARNING Grass Bag The blade control mechanism is a GasolineFill safety device. Never attempt to bypass its operations. Height Adjustment I Use extreme care Levers when handling Figure 1 gasoline.
  • Page 9 mowercan result in foreign objects /i_k WARNING: The operationof any lawn beingthrownintothe 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 in both directions.See Figure3. 2. Lubricatethe wheelsat least oncea seasonwith lightoil (or motoroil). If wheelsare removedfor any reason,lubricatesurfaceof the pivotarm and inner Maintaining surfaceof thewheelwith light oil. See Figure3. 3.
  • Page 11 bladefor sharpeningor replacement, _lllk ARNING:Whenremovingcutting protectyourhands with a pairof heavy gloves or use a heavy rag to hold blade. i i iii Maintaining 1. Disconnectsparkplug wirefrom spark plug.Turn You r LaWn moweron its side makingsurethat the air filter and the carburetorare up. 2.
  • Page 12 Problem Cause Remedy Engine fails to start I Biadecontroldisengaged. Engage bladecontro!. spark plug Wiredisconnected: 21 c0nnect wireto sPa[k piugl 1. Sparkplug wire loose. 1. Connect andtighten sparkplug wire. Engineruns erratic 2. Blockedfuel lineor stale fuel. 2. Clean fuel line; fill tank withclean, fresh gasoline.
  • Page 13 Off-Season 4. Coat mower'scuttingblade with chassisgreaseto Storage preventrusting. The followingstepsshouldbe taken to prepareyour lawn mowerfor storage. 5. Storemowerin a dry, cleanarea. Donot storenext 1. Cleanand lubricatemowerthoroughlyas describedin to corrosivematerials,suchas fertilizer. the lubricationinstructions. Whenstoringanytype of powerequipmentin a poorly 2. We do not recommendthe useof a pressurewasher ventilatedor metal storageshed, careshouldbe taken or gardenhoseto cleanyour unit.
  • Page 14 Model 446...
  • Page 15 747-1161A Blade Control 35 716-0102 Snap Ring 36 731-04998 Trailshield 749-1092A UpperHandle 747-04080 GrassCatcherFrame 37 732-0700 Trailshield Wire 749-0928A LowerHandle 38 712-0397 WingNut, 1/4-20 39 747-04035 RearDoorPivot Rod 720-0279 WingNut 710-1205 RopeGuide 40 732-04175 Spring Lever 710-1174 CarriageBolt ,5/16-18 x 2 41 687-02071 PivotArm Assembly- RH 664-04007A Grass BagAssembly...
  • Page 16: Limited Warranty

    To locate the dealer in your area, check your Yellow Pages, lasts,sothe aboveexclusions or limitations m aynot applyto you. or contact MTD LLC at RO. Box 361131,Cleveland, Ohio 44136- In no event shallrecoveryof any kindbe greaterthanthe amountof the 0019, or call 1-800-800-7310 or 1-330-220-4683 or log on to our purchasepriceof the productsold.Alterationof safety features of...

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