Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty OF A O AL Rear Tine Tiller - Model Series 450 iMPORTANT READ SAFETY RULES AND iNSTRUCTiONS CAREFULLY BEFORE OPERATION Warning: This unit is equippedwithan internalcombustionengineand shouldnot be usedon or nearany unimprovedforest-covered,brushcoveredor grass-coveredland unlesstheengine'sexhaustsystemis equippedwith a sparkarrestermeetingapplicablelocalor statelaws(if any).
This Operator's Manual is an important part of your new tiller, it will help you assemble, prepare, and maintain the unit for best performance. Please read and understand what it says. Table of Contents Safety Labels ...................................................... Safe Operation Practices ................................... Assembling Your Tiller ........................................ Know Your Tiller .................................................. Operating Your Tiller ........................
WARNING This symbol points out importantsafety instructionswhich, if not followed,could endangerthe personal safety and/or property of yourselfand others. Read and follow all instructionsin this manual beforeattemptingto operate this machine. Failure to comply with these instructionsmay result in personalinjury.When you see this symbol.
WARNING: Engine Exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to State of California to cause cancer and birth defects or other reproductive harm. DANGER: This machine was built to be operated according to the rules for safe operation in this manual. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury.This machine is capable of amputating hands and feet and throwing objects.
• • • • • • • • • • After strikinga foreignobject,stop the engine, disconnectthe spark plug wireand groundagainst the engineThoroughlyinspectthe machinefor any damage.Repairthe damagebeforestartingand operating. Disengageall clutchlevers(if fitted)and stopengine beforeyouleavethe operatingposition(behindthe handles).Wait untilthe tines cometo a complete stop beforeuncloggingthe tines,makingany adjustments,or inspections. Maintenance & Storage • • • Nevertamperwith safetydevices.
NOTE: Referencesto rightor left sideof thetillerare determinedfrom behindthe unitin theoperatingposition. To Remove ff Flat Washer Unit From Carton Hex Bolt T-Knob o Hairpin Clip • Removestaples,breakglue on topflaps,or cut tape at cartonend and peelalong top flapto open carton. • Removelooseparts includedwith unit (i.e., operator'smanual,etc.). • Cut cornersand lay cartondownflat. • Removepackingmaterial. • Rollor slideunit out of carton.Checkcarton thoroughlyfor looseparts.
B Attaching Control Rod Slot Head Screw,Nut_, & FiatWashers • Makesurethe handleassemblyisin the highest position.Referto KnowYourTiller section. f • Removehairpinclipsfrom control rod,(rubber washersto remainon controlrod). • Insertthe shorter,(angled),end of the control rod throughthe indicatorbracketon the shift coverand securewith hairpinclip that was previouslyremoved. See Figure3-5. • Insertthe longerend of the control rodthroughthe hole in the gear selectorhandleand securewith hairpinclip.
/++_..-- ii ....... ..,.............................. .,= /i LI):i;¸ A "k Gear SelectionHandle...... i KnoWYour Tiller Handle Adjustment Depth Stake ! i WARNING Make certain unit is in NEUTRAL when starting the engine. Figure 4-1 Gear Selection Handle iMPORTANT: Use the reversefine drivewhentilling virginground,sod, or hard soil. Usethe forwardtine drive whencultivatingor tilling softground. Thegear selectionhandle is locatedin the centerof the handleon the tiller.
Clutch Control The clutchcontrolis locatedbeneaththe handle. Squeezingthe clutchcontrol againstthe handleengages the wheeland fine drivemechanisms. NOTE: Neverengageclutchleverwhileshifting. Handle Adjustment KnowYour Lock iller The handlemay be adjustedto the heightdesired. Loosenthe handleheightadjustmentlock a few turns. Pivothandleup or downto desiredposition.Tightenlock. Throttle Control The throttlecontrolleveris locatedon the engine.It controlstheengine speedand stopstheengine.
Setting The Depth allARNING:Read,understand, instructionsand warningson thefollow maand Tillingdepthis controlledby the depthstakewhichcan be chine and in this manual before operating. adjustedto five differentsettings.Adjustthe side shields as youadjust thedepth stake. Before Starting _hb Gas And Oil Fill-Up disconnected groundedagainst theis ARNING: Beand certainspark plug wire Servicethe enginewith gasolineand oil as instructed in _ engine when performingany adjustments.
Toadjustthedepthstake,removetheclevispinand hairpin Belt Tension Adjustment clip. Movethe depthstaketo the desiredsettingand Periodicadjustmentof the belttensionmay be required securewiththe clevispin and hairpinclip.See Figure5-1. due to normalstretchand wearon the belt. Adjustment isneededif the tines or wheelsseemto hesitatewhile Toadjust the sideshields,removethe wingnuts. Move the side shieldto thedesiredpositionand replacethe turning,butthe enginemaintainsthe samespeed. wing nuts.Tightensecurely.
_ wire and groundit against the engine ARNING: Disconnectthe spark plug before performingany repairs. Engine i Maintaining Referto the separateengine manualforengine maintenanceinstructions. Maintainengineoil as instructed inthe separate enginemanualpackedwith yourunit. Readand follow instructions carefully. IMPORTANT:Neverusea "pressurewasher"to clean yourtiller.Watercan penetratetight areasof the tillerand itschain caseand cause seriousdamageto the unit.
f Idler PulleyRod • Removethe beltkeeperbracketlocatedbehindthe enginepulleyby removingtwo hex boltsand lock washers.See Figure8-1. • Removebeltand reassemblenew belt. Follow instructions in reverseorder. NOTE: Uponreassembly,makecertain the beltis routedoverthe idlerpulleyand insideof belt keepersby enginepulley.See Figure8-1.
13 29 46 53 35 16 / 28 I I 17 I I 17 15 I 18 36 23 7.
i i 611-04074 WheelShaft Ass'y33T 717-1594 SpurGear 16T 2. 611-0021 TineShaftAss'y: 18T 28. 721-0378 Seal 1.0Shaft 3. 611-0128 JackShaftAss'y 29. 721-0379 Seal.75Shaft 4. 611-0129 inputShaft Ass'y 31. 726-0277 TaperCap Ring 5. 617-0058 Rev.IdlerGear Ass'y:30T 32. 732-0496 CompressionSpring.50"Leg. 6. 617-0059 TineIdlerGear Ass'y:30T 33. 736-0163 ThrustWash.1.03"I.D.X. 1.62" 7. 617-0060 Tineinput SprocketAss'y:9T 34. 736-0351 FI-Wash.76"I.D.x 1.5"O.D. 8.
67 12 11 34 62 2_ X 37 39 26 27 J 36 33 24 28 4O 51 53 55 16
786-0090 Shoulder d 786-0113 786-0176 TineShieldHingeFlap RH HandleBracket i LowerHandleAss'y 36. 37. HexScrew3/8-16x 1.25 38. 786-0177 LH HandleBracket 710-3056 HexScrew5/16-18x 3.25 39. 786-0178 TineShield 6. 711-0415 ClevisPin 3/8-1.62 40. 786-0179 TineShieldBracket 7. 712-0379 FlangeLock Nut3/8-24 41. 786-0180 ShoulderSpacerBracket 8. 712-0429 Hex LockNut5/16-18 42. 686-0109 Shift CrankAss'y 9. 714-0147 CotterPin 44. 710-1017 Screw1/4-14x .625 10.
45 17 26 28 13 \0 8 25 11 14 \ 4 20 21 35 5 16 I 38 \ 42 \ 43 37 41 34 39 33 \ 48 Wheel shaft shown for reference only 31 49 47 32 29 37 50 47 18
i i 786-0187 ShiftCoverBracket 786-0193 IdlerBeltKeeper 686-0111 BeltCoverBracketAss'y 2. 710-0237 HexBolt5/16-24x .62" •28. 3. 710-0412 HexBolt 1/4-28x .75" 29. 4. 710-0502A HexWasherScrew3/8-16x 1.25" 5. 710-0152 HexBolt3/8-24x 1.0 30. 634-04230 WheelRim Assembly 6. 710-0599 HexWasherScrew 31. 734-0255 Air Valve 32. 710-0606 HexHeadScrew1/4-20 33. 712-04064 FlangeLockNut 1/4-20 7. 8. _ 710-0723 _ HexCapScrew3/8-16x 1.
Problem Cause Enginefails to start Sparkplugwire disconneCte& Remedy Eui! tank emptyoi sta e fue!i 2 Fi!i!ank with €leanifresh gaso!ine 3, Throttlecontrol!ever not in correct & Movethrottle !ever to start position startingPosi! on (i! equipped)4 4, Chokenotin ON position, 5 ciean fuel line 5! B!°cked!ue!!inei 61 c!eanl adjust gapl oireplace Eau!tyspark p!ugl Engine flooding, ! 1. Sparkplugwire loose. Engineruns erratic 7! Wait a few rninuteSt0 restart,but do not prime(i! equipped) 2.
thisp_g_ tom_k_ notes and write down important information: 1-800_800,7310,or 1'330-220'4683, www,mtdproducts.
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 NOTE:SPeCifications aie subject to changewithout notificationor obligation.
notes and write down NOTE: Specificationsare Subjectto changewithout i0tiication or obligationl !magesmy notreflectyour modeland are for referenCepurP0sesonly.
MANUFACTURER'S LiMiTED WARRANTY The limitedwarrantyset forth belowisgivenby MTDLLCwith respect to newmerchandisepurchasedand usedin the UnitedStates,its possessionsand territories. "MTD"warrantsthis productagainstdefectsin materialand workmanshipfor a periodof two (2) years commencingon the date of original purchaseand will, at its option,repairor replace,freeof charge,any part foundto be defectiveinmaterialsor workmanship.
