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Â® O m m ' W / / / / / / aI & _ AIIIIIIIIIIIIIF / m mllllllllllllllllml m Operator's Manual Rear - tine Tiller Models 630C - - Tuffy Â¢ 634AmSuper Bronco TM 634KmProLine Mode1634A Shown IMPORTANT : Read safety rules and instructions carefully before operating equipment . Warning : This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest - covered , brush - covered or grass - covered land unless the engine's exhaust system is equipped with a spark attester meeting applicable local or state laws ( if any ) . If a spark arrester is used , it should be maintained in effective working order by the operator . In the State of California the above is required by law ( Section 4442 of the California Public Resources Code ) . Other states may have similar laws . Federal laws apply on federal lands . A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department , P . O . Box 361131 Cleveland , Ohio 44136 - 0019 . Troy - Bilt LLC , P . O . BOX361131CLEVELAND , OHIO44136 - 0019 PRINTEDIN U . S . A . FORMNO . 770 - 10594F 10 / 6 / 04
TABLEOFCONTENTS Content Page Content Page Customer Support 2 Maintenance 17 Safety 3 Off - season Storage 21 Assembly 6 Troubleshooting 22 Features and Controls 10 Parts List 23 Operation 12 Warranty Back Cover FINDINGMODELNUMBER This Operator's Manual is an important part of your new lawn tractor . It will help you assemble , prepare and maintain the unit for best performance . Please read and understand what it says . Before you start assembling your new equipment , please locate the model plate on the equipment and copy the information from it in the space provided below . A sample model plate is also given below . You can locate the model plate by looking at the rear of the tine shield . This information will be necessary to use the manufacturer's web site and / or help from the Customer Support Department or an authorized service dealer . Copy the model number here : Copy the serial number here : OTRDV - BILT T , OV - BmLTLLC P . O . BOX 361131 www . troybilt . com CLEVELANODH , 44136 330 - 558 - 7220 , . 1 - 800 - 520 - 552 _ CUSTOMERSUPPORT Please doNOTreh / m the l / nit to theretailer withoutfirstcontactingCustomerSupport . If you have difficulty assembling this product or have any questions regarding the controls , operation or maintenance of this unit , you can seek help from the experts . Choose from the options below : Visit troy - bilt . com for many useful suggestions . Click on Customer Support button and you will get the four options reproduced here . Click on the appropriate button and help is immediately available . _ 7 > , , , , , v yO , , _ f ; ' 7 _ ; : ' / ; / , > ; ' V } / ) , , , > , , rL ; , " Â¢ j , _ < # ft , * x J , 7 ; ; _ . . . . . f ; @ ; t ; D ' _ , - , . _ tf ' ; _ ' civ , l j ; _ ? " # ' s " 4t , ' F _ i / ! s , * ; , , # FOX } _ j , " If you prefer to reach a Customer Support Representative , please call 1 ( 800 ) 520 - 5520 . The engine manufacturer is responsible for all engine - related issues with regard to performance , power - rating , specifications , warranty and service . Please refer to the engine manufacturer's Owner's / Operator's Manual , packed separately with your unit , for more information .
SECTION1 : SAFETY This machine meets voluntary safety stan - dard B71 . 8 - 1996 , which is sponsored bythe Outdoor Power Equipment Institute , Inc . , and is published by the American National Standards Institute . ForwardClutchBail ReverseClutchControl ( Models634A ) WARNING DepthRegulator The engine exhaust from this productcontains chemicals known to the State of California to TineHoodFlap cause cancer , birth defects or other reproduc - SafetyAlertSymbol in this manual and on the unit to alert Standard - Rotating - Tines , _ This is a safety alert symbol . It is used ( SRT ) you to potential hazards . When you see DrivePin this symbol , read and obey the message that follows it . Failure to obey Figure 1 - 1 : Tiller featuresand contre / s . See separateEngine Owner'sManua / to safety messages could result in identify engine contre / s . personal injury or property damage . 3 . Donot operatethe tiller without wearing e . Replaceall fuel tank and container adequateouter garments . Avoid loose gar - caps securely . 1 . Carefully readthis Own - Training ments or jewelry that could get caught in f . If fuel is spilled , do not attempt to er's Manual , the separate moving parts . start the engine , but move the ma - Engine Owner's Manual , chine awayfrom the areaof spillage 4 . Do not operatethe tiller when barefoot and any other literature you may receive . and avoid creating any source of ig - or wearing sandals , sneakers , or light foot - Bethoroughly familiar with the controls nition until fuel vapors havedissi - wear . Wear protective footwear that will andthe proper use of the tiller and its en - pated . improve footing on slippery surfaces . gine . Know how to stop the unit and disen - gagethe controls quickly . 5 . Do not till nearunderground electric ca - 7 . Nevermakeadjustments when engineis bles , telephone lines , pipes or hoses . If in running ( unless recommended by manu - 2 . Neverallow children to operatethe tiller . doubt , contact your telephone or utility facturer ) . Neverallow adults to operatethe tiller company . without proper instruction . Operation 6 . Warning : Handlefuel with care ; it is 3 . Keepthe area of operation clear of all highly flammable and its vapors areexplo - persons , particularly children and pets . 1 . Do not put hands or feet near or under sive . Takethe following precautions : rotating parts . 4 . Keepin mind that the operator or user is a . Store fuel in containers specifically responsible for accidents or hazardsoc - 2 . Exerciseextreme caution when on or designed for this purpose . curring to other people , their property , and crossing gravel drives , walks , or roads . b . Thegas capshall neverberemovedor themselves . Stayalert for hiddenhazardsor traffic . Do fueladdedwhiletheengineis running . not carry passengers . Allowthe engineto cool for several Preparation 3 . After striking a foreign object , stop the minutes beforeaddingfuel . engine , removethe wire from the spark 1 . Thoroughly inspect the areawhere the c . Keepmatches , cigarettes , cigars , plug wire and prevent it from touching the tiller is to be usedand removeall foreign pipes , openflames and sparks away spark plug . Thoroughly inspect the ma - objects . from the fuel tank and fuel container . chine for any damageand repairthe dam - 2 . Be sure all tiller controls are released d . Fill fuel tank outdoors with extreme agebefore restarting and operating the and both wheels arein the Wheel Drive po - care . Neverfill fuel tank indoors . Use machine . sition before starting the engine . a funnel or spout to preventspillage .
4 . Exercisceautiotnoavoidslippinogrfall - If indoubtaboutthetilling conditions , al - 24 . Do not touch engine parts which may ing . ways usethe following operating precau - behot from operation . Let parts cool down tionsto assistyouin maintainingcontrol sufficiently . 5 . Iftheunitshouldstarttovibrataebnor - of the tiller : 25 . Pleaseremember : Youcan alwaysstop mallys , toptheengined , tisconnetchteouch - a . Walk behindandto one side of the sparkplugwireandprevenittfrom the tines and wheels by releasingthe For - tiller , usingone handon the handle ward Clutch Bail or on Model 634Athe Re - ingthesparkpluga , ndchecikmmediately barsRelax yourarm , but use a forthecauseV . ibratioisngeneralaly verseClutch control , ( whichevercontrol is securehandgrip . warninogftrouble . engaged ) , or by moving the ignition switch b . Use shallower depthregulator and / orthrottle control lever on the engine 6 . Stop the engine , disconnectthe spark settings , working graduallydeeper to " OFF " or " STOP " . plug wire and prevent it from touching the with each pass . spark plug , wheneveryou leavethe operat - 26 . To load or unloadthe tiller , seethe in - Â¢ . Use slower enginespeeds . structions in Section4 of this Manual . ing position , before unclogging the tines , d . Clear the tilling area of all large or when making any repairs , adjustments 27 . Useextreme caution when reversing stones , rootsor other debris . or inspections . or pulling the machinetowards you . e . Avoidusingdownwardpressureon 7 . Takeall possible precautions when leav - 28 . Startthe enginecarefully accordingto the handlebars . If needbe , use ing the machine unattended . Stop the en - instructions and with feet well away from slight upwardpressureto keep the gine . Disconnect the spark plug wire and the tines . tinesfrom diggingtoodeeply . move it awayfrom the spark plug . Besure 29 . Neverpick up or carry a machinewhile f . Beforecontacting hard packedsoil that both wheelsarein the Wheel Drive po - the engineis running . at the endof a row , reduce engine sition . speedand lift the handlebarsto 8 . Before cleaning , repairing , or inspect - MaintenanceandStorage raise the tines out of the soil . ing , stop the engine and make certain all g . In an emergency , stopthe tinesand 1 . Keepthe tiller , attachmentsand acces - moving parts have stopped . Disconnect wheels by releasing whichever sories in safeworking condition . the spark plug wire and prevent it from clutch controlis engaged . Do not 2 . Checkall nuts , bolts , and screws for touching the spark plug to preventacci - attemptto restrainthe tiller . proper tightness to besure the equipment dental starting . is in safeworking condition . 15 . Do not overloadthe tiller's capacityby 9 . The flap on the fine hood must bedown attempting to till too deeply at too fast a 3 . Neverstore the tiller with fuel in the fuel when operating the tiller . rate . tank insidea building where ignition sourc - 10 . Neveruse the tiller unless proper esare presentsuchas hot waterandspace 16 . Neveroperate the tiller at high trans - guards , plates , or other safety protective heaters , furnaces , clothes dryers , stoves , port speeds on hard or slippery surfaces . devices are in place . electric motors , etc . ) . Allow the engineto Look behind and use care when backing 11 . Do not run the engine in an enclosed cool before storing the unit in any enclo - up . area . Engineexhaust contains carbon sure . 17 . Donot operatethe tiller on aslope that monoxide gas , a deadly poison that is 4 . To reducethe chances of a fire hazard , is too steep for safety . When on slopes , odorless , colorless , and tasteless . keepthe enginefree of grass , leaves , or ex - slow down and makesure you have good 12 . Keepchildren and pets away . cessivegrease . footing . Neverpermit thetille rto f reewheel 13 . Never operate the tiller underengine down slopes . 5 . Store gasoline in acool , well - ventilated powerif thewheels are in the Freewheel area , safely awayfrom any spark - or 18 . Neverallow bystanders nearthe unit . position . In the Freewheelposition , the flame - producing equipment . Store gaso - 19 . Onlyuse attachmentsand accessories wheelswill not hold the tiller back andthe line in an approved container , safely away that are approved by the manufacturer of revolvingtines could propel the tiller rapid - from the reachof children . the tiller . ly , possibly causingloss of control . Always 6 . Referto the Maintenancesections of 20 . Usetiller attachmentsand accessories engagethe wheels with the wheel drive this Manual and the separateEngineOwn - when recommended . pins in the Wheel Drive position before er's Manual for instructions if the unit is to starting the engine or engaging the 21 . Neveroperate the tiller without good bestored for an extendedperiod . tines4Nheelswith the Forward Clutch Bail visibility or light . 7 . Neverperform maintenancewhile the ( all models ) or the ReverseClutch control 22 . Neveroperatethe tiller if you aretired ; engineis running orthe spark plug wire is ( Models 634A only ) . or underthe influence of alcohol , drugs or connected , except when specifically in - 14 . Be aware that the tiller may unex - medication . structed to do so . pectedlybounceupwardor jumpforward 23 . Operatorsshall not tamper with the en - 8 . Ifthe fuel tank hasto be drained , dothis if the tines shouldstrike extremelyhard gine - governor settings onthe machine ; outdoors . packedsoil , frozen ground , or buried ob - the governor controls the maximum safe stacles like large stones , roots , or operating speed to protect the engine and stumps . all moving parts from damagecaused by overspeed . Authorized service shall be sought if a problem exists .
Decals ReverseClutch Control ForwardClutchBail For your safety and the safety of others , vari - OperatingInstruction ( Models 634A ) ous safety and operational decalsare located on your unit ( seeFigure 1 - 2 ) . Keepthe decalsclean and legible at all times . StartingStabilization Contactyour local service dealeror thefactory Message ( on engine ) for replacementsif any decalsaredamagedor missing . WarningMessages Referto the Parts List pagesin this Manualfor decal locations , descriptions and part num - bers . HotSurfacesWarning Figure 1 - 2 : Locationof safety and operatingdeca / s . OperatingSymbols I " 1 I * 1 R Varioussymbol ( sshownherew , ithworddescriptions ) mayheusedonte'dlleranedngine . CHOKE CHOKE REVERSE NOTEY : ouur nimt aynothaveallof _ esymbds . ON OFF ROTATINGTINES BAIL BAIL ENGAGED DISENGAGED < , - K , < - - o - - > FAST SLOW STOP TILLERDIRECTION LEVERDIRECTION TO AVOID SERIOUS INJURY : * READTHEOWNER'SMANUAL . * KNOWLOCATIONSAND FUNCTIONSOFALLCONTROLS . * KEEPALLSAFETYDEVICESANDSHIELDSIN PLACEAND WORKING . Â° NEVERALLOWCHILDRENORUNINSTRUCTEDADULTSTO OPERATETILLER . Â° SHUTOFFENGINEAND DISCONNECTSPARKPLUGWIRE BEFOREMANUALLYUN - CLOGGINGTINES ORMAKINGREPAIRS . Â° KEEPBYSTANDERSAWAYFROM MACHINE . Â° KEEPAWAYFROM ROTATINGPARTS . Â° USEEXTREMECAUTIONWHEN REVERSINGOR PULLINGTHEMACHINETOWARDS YOU .
SECTION2 : ASSEMBLY ASSEMBLYSTEPS WARNING : Toprevent personal injury or property STEP 1 : UNPACKING INSTRUCTIONS damage , do not start the engine _ iiii NOTE : While unpacking , do not severely until all assemblysteps are bend any control cables . complete andyou have read and understandthe safety and 1 . The tiller weighs approximately 133 Ibs . operating instructions in this Do not attempt to remove it from the ship - manual . ping platform until instructed to do so in these Assembly steps . INTRODUCTION 2 . Removeany packagingmaterial from Carefully follow these assemblysteps to the carton . Removeany staples from the correctly prepareyour tiller for use . It is bottom of the carton and removethe car - recommendedthatyou readthis Sectionin ton from the shipping platform . its entirety before beginning assembly . 3 . Removeall unassembled parts andthe NOTE : Various rifler models are separatehardware bag from the carton . Figure2 - 1 : Toidentifylengthofscrews , place presented in this Manual . Use only the Checkthat you havethe items listed in the screwontemplateasshownandmeasuredis - information appropriate for your tiller Loose Parts List ( contactyour local dealer tancebetweenbottomofscrewheadandtip of model . Engine styles vary by model , Your or the factory items are missing or dam - screw . engine may appear differently than those aged ) . illustrated in this manual . 2 . Usingtwo 5 / 16 " - 18 x 1 - 1 / 2 " screws ( G ) , NOTE : Use the screw length template 5 / 16 " split lock washers ( H ) and 5 / 16 " - 18 ( Fig , 2 - 1 ) to identify screws , INSPECTUNIT hex nuts ( I ) , loosely attach the handlebar LooseParts List support ( A ) using the upperholes . Tighten Inspect the unit and carton for damageim - the two screws securely . mediatelyafter delivery . Contactthe carrier ( trucking company ) if you find or suspect 3 . Therearethree height adjustment holes Qty . Description damage . Inform them of the damageand in the two handlebar support brackets ( E 1 HandlebarSupport ( seeA , Fig . 2 - 2 ) request instructions for filing a claim . To and F , Fig . 2 - 2 ) . Usea setting that will po - 1 HandlebarAssembly ( seeK , Fig . 2 - 2 ) protect your rights , put your claim in writ - sition the handlebarsat approximately Hardwarebag contents : ing and mail a copyto the carrier within 15 waist levelwhen the tines are3 " - 4 " into the 4 Hexhd . screw , 5 / 16 - 18 x 1 - 1 / 2 " days after the unit has beendelivered . soil . Looselyattachthe support bracketsto 2 Hexhd . screw , 3 / 8 - 16 x 3 / 4 " ContactTroy - Bilt LLCif you needassis - the outsideofthe handlebarassembly ( K ) 2 FlatWasher , 3 / 8 " tance in this matter . 4 Split lockwasher , 5 / 16 " using two 5 / 16 " - 18 x 1 - 1 / 2 " screws ( G ) , 5 / 4 Hex nut , 5 / 16 " - 18 16 " split lockwashers ( H ) and5 / 16 " - 18 hex TOOLS / MATERIALSNEEDED 2 HexIocknut , 34 } " - 16 nuts ( I ) . NOTE : Ifa support bracketwill not * Model 634A only move , loosen attaching screw ( J ) and nut . ( 2 ) 1 / 2 " open - end wrench * IMPORTANT : Motor oil must beaddedto ( 2 ) 9 / 16 " open - endwrench * IMPORTANT : The support bracketsmust the enginecrankcasebefore the engine is beassembled to the outsideof the ( 1 ) 3 / 8 " open - endwrench * started . Followthe instructions inthis handlebarassembly . ( 1 ) Largeadjustable wrench Sectionand in the separateEngine ( Models 634F / 634A only ) Owner's Manual . 4 . Tightenall handlebarmounting hard - ( 1 ) Scissors ( to trim plastic ties ) ware securely . NOTE : LEFTand RIGHTsides of the tiller ( 1 ) Ruler ( for belt tension check ) STEP 3 : MOVE TILLER OFF CRATE are as viewedfrom the operator's position ( 1 ) Block of wood ( to support tiller when To roll the tiller off the shipping platform , behind the handlebars . removing wheels ) put the wheels in freewheel , as follows : STEP 2 : ATTACHHANDLEBAR ( 1 ) Tire pressure gauge ( for models with 1 . Placeasturdy block underthe transmis - pneumatic tires ) 1 . Looselyattachthe legs of the handlebar sion to raise one wheel about 1 " off the ( 1 ) Cleanoil funnel support ( A , Fig . 2 - 2 ) to the inner sides of ground . ( 1 ) Motor oil . Referto the EngineOwner's the tiller frame usingtwo 3 / 8 " - 16 x 3 / 4 " hex 2 , Removethe hairpin cotter ( L , Fig . 2 - 3 ) Manualfor oil specificationsand hd . screws ( B ) , 3 / 8 " flat washers ( C ) , and and wheel drive pin ( M ) from the wheel quantity required . 3 / 8 " - 16 hex Iocknuts ( D ) . hub ( 0 ) and wheel shaft ( N ) . * Adjustable wrenches may be used . 3 . Slidethe wheelfully inward onthe wheel shaft ( N , Fig . 2 - 3 ) . Reinstall the wheel
Â° - ! Â° Fig . 2 - 3 : Wheel in FREEWHEELposition A STEP 4 : INSTALL FORWARD CLUTCH CABLE 1 . Carefully unwrap the forward clutch ca - ble ( cable without an attached knob ) from its shipping position and slide the thin ca - blewire ( T , Fig . 2 - 4 ) into the slot in the ca - blebracket . Push the cable connector ( U , Fig . 2 - 4 ) upthrough the holein the bracket until the groove in the connector snaps into place . 2 . Threadthe # 10 - 24 hex nut ( Z , Fig . 2 - 5 ) halfway onto the screw ( V ) which runs J through the spring ( W , Fig . 2 - 5 ) . 3 . Threadthe screw ( V ) into the cable ad - juster ( X ) . B Fig . 2.2 : Attachhandlebar . drive pin ( M ) through the wheel shaft only ( not through the wheel hub ) . Secure the wheel drive pin with the hairpin cotter ( L ) , pushing the hairpincotter in as far as it will go . The wheel should now spin freely ( freewheel ) on the wheel shaft . Repeat with the other wheel . 4 . Usethe handlebarto roll the tiller to a flat area . IMPORTANT : Beforestarting the engine , the wheels must beplaced in the WHEEL DRIVEposition ( pins through wheel hubs andwheel shaft ) . This procedure is describedin WheelDrive Pinsin Section3 . Fig . 2 - 4 : Installingforward clutchcable bracketand cable .
4 . Checkfor correct tension onthe forward drive belt by taking two measurements of the cable spring , as follows : a . With the Forward Clutch Bail ( Y , Fig . 2 - 6 ) in an open ( released ) position , measure the length of the cable spring ( W ) from the outermost coil to the outermost coil . b . Squeezethe ForwardClutch Bailagainst the handlebar ( see Fig . 2 - 7 ) and re - mea - sure the spring length . The belt tension is correct if this second measurementis be - tween 1 / 16 " to 3 / 16 " longer than the first measurement . If so , turn the hex nut ( Z , Fig . 2 - 7 ) tightly against the cable adjuster ( X ) while preventingthe cable adjuster iiiiiiiiiiiiiiii from turning . c . If the spring length is incorrect , you Fig . 2 - 7 : Tocheckforwardbelt tension , take two measurementsof thelengthof the coils inthe must adjustthe cabletension as described spring - - first withthebail open , then withthe bail held against thehandlebar . in Checkingand Adjusting Forward Drive Belt Tensionin Section 5 . Incorrect cable STEP 5 : INSTALL REVERSECLUTCH tension can result in belt slippage ( cable CABLE ( MODEL 634A ONLY ) tension too loose ) , or unintentional tine 1 . Unwrapthe reverseclutch cable ( CC , movement when the clutch bail is in Neu - Fig . 2 - 8 and Fig . 2 - 9 ) from its shipping po - tral ( cabletension too tight ) . sition and route it up to the handlebar . Be sure that the cable is routed beneaththe Forward Clutch Bail . Wm 2 . Insertthe cable ( CC , Fig . 2 - 8 ) through the slot inthe cablebracketandpositionthe flat side of the threadedassemblynextto the flat side of the hole . Slidethe hex nut ( DD ) up the cable andtighten it securely . W Flat Side 3 . Fastenthe reverseclutch cable to the left side handlebarwith acabletie ( EE , Fig . 2 - 9 ) . Fig . 2 - 8 : / nsta / / reverse cable bracketand reverse clutchcable . 4 . Testthe function ofthe reverseclutch by pulling out and releasingthe cable knob . The knob should return to its neutral posi - tion ( resting against bracket ) . If it doesn't , contact your local dealeror Troy - Bilt LLC for technical assistance . Fig . 2 - 5 : Cable Fig . 2 - 6 : Attachforward springand clutchcable spring to forwardclutch bail . adjuster . Fig . 2 - 9 : Route reverse clutchcable ( CC ) as shown . Attach withcable tie ( EE ) .
5 ! 6 : CHECKTRAHSMiSSiOH I El - ' / : AUU IVlUI UH UIL _ 1 El - ' 8 : I . ; HEI . ; K HAHUWAHE OIL LEVEL Thetiller is shipped withoutoil in the en - Checkall nuts and screws for tightness . gine . Thetransmission was filled with gearoil at STEP g : CHECK AIR PRESSURE IN the factory . However , you should checkthe IMPORTANT : Do not start the engine with - TIRES ( unitswithpneumatictires ) gear oil level at this time to makecertain it out first adding motor oil . Severeengine Checkthe air pressurewith a tire gauge . is correct . damagewill result if the engineis run with - Deflateor inflatethe tires equally to be - out oil . IMPORTANT : Donot operatethe tiller if the tween 15 PSIand 20 PSI ( pounds per gear oil level is low . Doing so will result in 1 . Referto the separateEngineOwner's square inch ) . Besure that both tires arein - severedamageto the transmission com - Manual for engine oil specifications and flated equally or the unit will pull to one capacities . ponents . side . 1 . With the tiller on level ground , pull the 2 . With the tiller on levelground , movethe Depth RegulatorLever ( FF , Fig . 2 - 10 ) back Depth RegulatorLever ( FF , Fig . 2 - 1O ) up or andthen all the way up until the lowest down until the engine is level . notch in the lever is engaged . 3 . Add motor oil as describedin the En - gine Owner's Manual . 2 . Removethe oil fill plug ( GG , Fig . 2 - 11 ) from the transmission housing cover and 4 . Movethe DepthRegulator Lever all the locatethe main drive shaft situated inside way down until the highest notch is en - the housing . gaged . This placesthe tines in the " travel " 3 . Thegear oil level is correct if the gear oil position , which allows the tiller to be is approximately halfway upthe side of the moved without the tines touching the main drive shaft . ground . 4 . Ifthe oil level is low , add gear oil by re - ferring to A . ToCheckthe Transmission dear 0il Level in Section5 . Fig . 2 - 10 : AdjustDepth RegulatorLever . IMPORTANT : This completesthe assembly steps . Be - fore operatingyour tiller , makesure you readthe follow - ing sections in this Manual , as well as the separateEngineOwner's Manual : â¢ Section 1 : Safety â¢ Section 3 : Featuresand Controls â¢ Section 4 : Operation Fig . 2 - 11 : Removegear oil fill plug .
SECTION3 : FEATURESANDCONTROLS operating your machine , _ ARNING : Before carefully readand understand all safety , controls and operating instructions in this Manual , the separateEngine ForwardClutch Bail ReverseClutchControl Owner's Manual , and on the decalson the machine . Failureto follow these ( Model 634A ) instructions can result in serious personal injury . gulator INTRODUCTION HandlebarHeight Adjustment This Section describes the location and function of the controls on your tiller . Refer to the following Section , Operationfor de - tailed operating instructions . Practice using these controls , with the en - gine shut off , until you understandthe op - Wheel Drive Pin eration of the controls and feel confident ( oneachwheel ) with each of them . Figure 3 - 1 : Tiller features and controls . See separateEngineOwner's Manual to identify ENGINE CONTROLS engine controls . Referto the enginemanufacturer's Engine Owner's Manual ( included in the tiller liter - Forward Clutch Bail ( all models ) or the Re - ature package ) to identify the controls on verse Clutch Control ( Model 634A ) is en - your engine . gaged . IMPORTANT : Thecontrol for stopping the Usethe FREEWHEELmode only when the engine is located onthe engine . engineis not running , in FREEWHEELt , he wheel drive pins are placed only through WHEEL DRIVE PINS the holes in the wheel shaft ( not the wheel Eachwheel is equippedwith a wheel drive hubs ) , thus allowing the wheels to turn pin ( A , Figures3 - 2 and 3 - 3 ) that secures freely when you manually movethe tiller . the wheel to the wheel shaft ( B ) . The Toplacethe wheels in WHEELDRIVEor wheelscan be positioned in either a FREEWHEEL : WHEELDRIVEor a FREEWHEELmode . 1 . Stop engine , disconnectsparkplug wire Figure3 - 2 : WHEELDRIVEposition . from sparkplug andallow engineto cool . either of the wheelsto bein the _ WARNING : Neverallow wheel hub ( D , Figure 3 - 2 ) and wheel FREEWHEELposition when the shaft ( B ) . Insert wheel drive pin ( A ) tiller on its side when changing engineis running . Always put _ WARNING : Donotplace through wheel hub ( D ) and wheel both wheelsin the WHEEL wheel drive positions . Doing so shaft ( B ) . Securewheel drive pin with hair - could result in gasoline leaking DRIVEposition before starting pin cotter ( C ) by pushing hairpin cotter in from the fuel tank . the engine . as far as it will go . Repeatwith the other Failureto follow this instruction Failureto comply could cause wheel and then removethe support from could result in personal injury loss of tiller control , property beneaththe transmission . or property damage . damage , or personal injury . 5 . FORFREEWHEELMODE ( Figure 3 - 3 ) : 2 . Raiseone wheel about one inch off the Beforestarting the engine , put both wheels Slidethe wheel inward andinsertthe wheel ground and place asturdy support under in the WHEELDRIVEposition by inserting drive pin ( A , Figure3 - 3 ) only through the the transmission . the wheel drive pins through the wheel hole in the wheel shaft ( B ) . Secure wheel hubs andthe wheel shaft . Doingso " locks " 3 . Removehairpin cotter ( C , Figures3 - 2 drive pin with hairpincotter ( C ) by pushing the wheels to the wheel shaft , causing the and 3 - 3 ) from wheel drive pin ( A ) . hairpin cotter in as far as it will go . Repeat wheelsto turn when either the for the other wheel and then removethe 4 . FORWHEELDRIVEMODE ( Figure3 - 2 ) : Slide wheel outward and align holes in support from beneath the transmission . lO
begintilling at avery shallow depth setting and gradually increasethe tilling depth . _ - - ' i _ caution when reversing torreme _ WARNING : Useex A pulling the machinetowards Y , , _ - D you . Look behindto avoid to till too deeplytoo quickly . _ b ARNING : Do not attempt obstacles . Graduallywork down to deeper Neverattemptto till in reverse . tilling depths . Failureto follow this warning Placethe DepthRegulator could result in personal injury Lever in the " travel " position or property damage . before starting the engine . This Tooperatethe ReverseClutchControl : position prevents thetines from touching the ground until you 1 . Put wheels in WHEELDRIVEposition are readyto begintilling . ( see " WARNING " statement at the left ) . Failureto follow this warning 2 . Stop all tiller motion by releasing the Figure3 - 3 : FREEWHEEpLosition . could result in personalinjury Forward Clutch Bail . or property damage . engine , besure that both the ground , look behind you to avoid any WARNING : Beforestarting 3 . Lift the handlebar until the tines clear Travel Position wheelsare inWHEELDRIVE obstacles , and then pull the control knob position . SeeWheelsDrivePins ( F , Figure3 - 4 ) out . The wheels and tines for instructions , will rotate in a reversedirection . Engagingthe Forward Clutch 4 . Releasethe control knob to disengage Bail or ReverseClutch Control ( stop ) the wheels andtines ( the enginewill ( if equipped ) when the wheels continue to run ) . arenot in WHEELDRIVEcould allow the tinesto rapidly propel the tiller forward or backward . Figure3 - 5 : Depth Regulator Lever ( G ) . Failureto comply could cause loss of tiller control , property HANDLEBARHEIGHT ADJUSTMENT damage , or personal injury . Thehandlebarheight is adjustableto three FORWARDCLUTCHBAIL different settings ( Figure 3 - 6 ) . In general , adjust the handlebars so they areat waist The Forward Clutch Bail ( E , Figure3 - 4 ) level when the tines are3 " - 4 " in the soil . controls the engagementof forward drive F Toadjustthe handlebars : to the wheelsand tines . E Tooperate the ForwardClutchBail : 1 . Stop engine , disconnectspark plugwire from spark plug and allow engineto cool . 1 . Put wheelsin WHEELDRIVEposition Figure3 - 4 : AII modelshavea ForwardClutch ( see " WARNING " statement above ) . Bail ( E ) . OnlyMode1634Ahavea Reverse 2 . Remove hardware , reposition handle - ClutchControl ( F ) . bars , and reinstall hardware securely . 2 . Lift and hold the clutch bail ( E , Figure 3 - 4 ) againstthehandlebartostartthewheels DEPTH REGULATOR LEVER andtines rotating in a forward direction . This lever ( G , Figure 3 - 5 ) controls the till - 3 . Releasethe clutch bail to disengage ing depth of the tines . Pullthe lever back ( stop ) the wheels andtines ( the enginewill and slide it up or down to engagethe continue to run ) . notched height settings . High REVERSECLUTCHCONTROL The " travel position " ( highestnotch ) raises ( Model 634A only ) the tines approximately1 - 1 / 2 " off the Medium ground , allowing the tiller to be moved The ReverseClutch Control ( F , Figure 3 - 4 ) without the tines contacting the ground . controls the engagementof reversedrive This setting should also be used when to the wheelsandtines . The reversing fea - starting the engine . ture is usedfor maneuveringthe tiller only - - neverengage the tines in the Moving the lever upward will increasethe tilling depth . The lowest notch allows a till - ground while operatingin reverse . ing depth of approximately6 " , depending Figure3 - 6 : Handlebarheightadjustment . on soil conditions . For best results , always 11
SECTION4 : OPERATION 1 . Completethe Pre - StartCheckliston this ReverseClutchControl page . operating your machine , _ ARNING : Before ( Model634A ) carefully readand understand 2 . Putthe wheels inthe WHEELDRIVEpo - all safety ( Section 1 ) , controls sition ( see WheelDrivePinsin Section3 of ( Section 3 ) and operating this manual ) . instructions ( Section4 ) inthis Manual , the separateEngine Clutch Bail preventserious personal injury , _ WARNING : Tohelp , epthRegulator Owner's Manual , and on the or damageto equipment : decalson the machine . / Failureto follow these â¢ Before starting engine , put both instructions can result in wheels in the WHEELDRIVE position . serious personal injury . Never have wheels in FREEWHEELpo - sition when engine is running . When INTRODUCTION the wheels are in FREEWHEELt , hey do DrivePin not hold back the tiller and the tines Readthis OperationSection andthe sepa - rate EngineOwner's Manual before you couldpropel the tiller rapidly Fig . 4 - 1 forwardor backward . start the engine . Then , take the time to fa - miliarize yourself with the basic operation 5 . Checkthat all safety guards andcovers â¢ Before starting engine , put Forward of the tiller before using it in the garden . are in place . Clutch Bail ( all models ) and Reverse Findan open , level areaand practice using Clutch Control ( Model 634A only ) in 6 . Checkair cleanerand engine cooling the tiller controls without the tines engag - neutral ( disengaged ) positionsby re - system . SeeEngineOwner's Manual . ing the soil ( put tines in " travel " setting ) . leasinglevers . Only after you've becomecompletely fa - â¢ Never run engine indoors or in en - HIGHLYFLAMMABLEAND ITS miliar with the tiller should you beginusing , _ WARNING : GASOLINEIS closed , poorlyventilatedareas . Engine VAPORSAREEXPLOSIVE . it in the garden . exhaustcontainscarbonmonoxide , an Followgasoline safety rules in odorlessanddeadlygas . BREAK - INOPERATION this Manual ( seeSection 1 ) and â¢ Avoidenginemuffler andnearbyareas . Perform the following maintenanceafter in the separateEngineOwner's Temperaturesin these areas may ex - Manual . the first two ( 2 ) hours of new operation ceed 150 Â° F . Failureto follow gasoline safety ( see MaintenanceSection in this manual instructions can result in and in the Engine Owner's Manual ) . 3 . Movethe Depth RegulatorLever all the serious personal injury and 1 . Changeengine oil . way down to the " travel " position , so that property damage . 2 . Checkfor loose or missing hardware on the tines clear the ground . unit . Tighten or replaceas needed . 7 . Fill the fuel tank with gasoline according 4 . Releaseall controls on the tiller . 3 . Checktension on forward drive belt . to the directions inthe separate Engine 5 . Onengine's with a fuel shut - off valve , 4 . Checktransmission gear oil level . Owner's Manual . Follow all instructions turn valve to openposition , as instructed and safety rules carefully . STARTING AND STOPPING in the separateEngine Owner's Manual . 8 . Attach spark plug wire to spark plug . 6 . Put ignition switch and / or throttle con - Pre - StartChecklist Startingthe Engine trol lever located on engine in the " ON " , With the spark plug wire disconnected The following steps describe how to start " RUN " , " FAST " or " START " position , as in - from the sparkplug , perform the following and stop the engine . structed in the EngineOwner's Manual . checksand services before each use : 7 . Chokeor prime engine , as instructed in 1 . Readthe Safetyand Controls Sections EngineOwner's Manual . in this manual . Readthe separateEngine to engagethe tines or wheels , _ WARNING : Donot attempt 8 . Put one hand on fuel tank to stabilize Owner's Manual provided with the unit . until you have readall of the unitwhen pulling starter ropehandle . Then 2 . Putthe wheels inthe WHEELDRIVEpo - operating instructions in this use recoil starter to start engine , as in - sition ( wheel pins must be through holes Section . Also , reviewthe safety structed in the EngineOwner's Manual . in wheel hubs and wheel shaft ) . rules in Section 1 : Safety , and Whenenginestarts , gradually move choke 3 . Checkunit for loose or missing hard - the tiller and enginecontrols lever ( if so equipped ) to " NO CHOKE " , ware . Serviceas required . information in Section3 : " CHOKEOFF " or " RUN " position . Featuresand Controls . 4 . Checkengineoil level . SeeEngineOwn - er's Manual . 9 . Usethe " FAST " throttle speed setting when tilling . 12
4 . For forwardmotion of the wheels and ( b ) Swing the handlebarto the left so the tines : right wheeltakes a " step " backward . Next ( a ) Pull Forward Clutch Bail ( Fig . 4 - 1 ) up swing the handlebarto the right so the left against handlebar . Releasebail to stop for - wheel " steps " backward . Repeatas needed . ward motion of wheels and tines . ( c ) If longer distances needto becovered in reverse , shut off the engine , then place ( b ) When tilling , relaxand let the wheels the two wheels in FREEWHEEL . pull the unit while the tines dig . Walk be - hind anda little to oneside of the unit . Use 7 . ToTurn the Tiller Around : one hand , yet keepa light - - but secure - - ( a ) Practiceturning the tiller in a level , grip on the handlebar ( while keepingyour openarea . Beverycarefulto keepyour feet arm loose ) . SeeFig . 4 - 2 . Let the unit move Stopping the Engineand Tiller and legs away from the tines . at its own paceand do not push down on 1 . Tostop the wheelsandtines , releasethe ( b ) Tobeginaturn , lift the handlebarsuntil the handlebarsto try and forcethe tines to Forward Clutch Bail ( all models ) orthe Re - the tinesareout ofthe groundandtheengine dig deeper - - this takes weight off the verse Clutch Control ( Model 634A ) - - andtinesarebalancedoverthe wheels ( Fig . wheels , reducestraction , andcauses the whichever control is in use . 4 - 4 ) . tines to try and propel the tiller . 2 . Tostop the engine , put the ignition ( c ) With tiller balanced , push sideways on switch and / or the throttle control lever in handlebarto steer in direction of turn ( Fig . the " OFF " or " STOP " position . 4 - 5 ) . After turning , slowly lower tines into down onthe handlebarsto try , _ WARNING : Donotpush soil to resumetilling . to makethe tiller till more OPERATINGTHE TILLER deeply . This prevents the Thefollowing operating instructions pro - wheelsfrom holding the tiller vide guidelines to using your tiller effec - backand can allow the tines to tively and safely . Besure to read Tilling rapidly propelthe tiller forward , Tips & Techniquesin this Section before which could resultin loss of actually putting the tines into the soil . control , property damage , or personal injury . NOTE : This is a traditional " Standard - Ro - tating - Tine " ( SRT ) tiller with forward rotat - 5 . For reverse motion of the wheelsand ing tines , it operatescompletely differently tines ( Model 634A only ) : from " Counter - Rotating - Tine " ( CRT ) tillers ( a ) Look behindand exercisecaution when or from front - tine tillers . operating in reverse . Do not till while in Fig . 4 - 4 : Tobegin turn , lift handlebars until reverse . 1 . Followthe Pre - Start Checklistat the be - tines are out of groundand unit is balanced . ginning of this Section . Besure that the ( b ) Stop all forward motion . Lift handlebar wheelsare in the WHEELDRIVEposition . with one handuntil tines areoff the ground andthen pull ReverseClutch Control knob 2 . Movethe DepthRegulator Lever all the out ( seeFig . 4 - 3 ) . Tostop reversing , let go way down , so that the tines clear the of ReverseClutch Control knob . ground . Usethis position when practicing with the tiller and when traveling between tilling sites . Beforeactually tilling , move the lever to the desired depth setting ( see Tilling Tips & Techniques ) . 3 . Start engineand allow it to warm up . Then put throttle in " FAST " setting . Fig . 4 - 5 : Withtinesout ofgreund , pushhan - dlebarssidewaysto turntiller . Fig . 4 - 3 : Raisetinesoffgreundandlook Stoppingthe TillerandEngine behindwhenmovinginreverse . 1 . Tostop the wheelsandtines , releasethe Forward Clutch Bail ( all models ) orthe Re - 6 . Tomovethe Model 630C in reversefor verse Clutch Control ( Model 634A ) - - short distances : whichever control is in use . ( a ) Releaseforward Clutch Bail . Thenlift 2 . Tostop the engine , put the ignition Fig . 4 - 2 : Useonehandtoguidefillerwhen handlebaruntil tines are off the ground . switch and / orthe throttle control lever in movingforward . the " OFF " or " STOP " position . 13
TILLINGTIPS & TECHNIQUES â¢ Avoid pushing down on the handlebarsinan attemptto forcethe tiller to dig deeper . Doing Tilling Depths sotakesthe weightoff the poweredwheels , causingthemto losetraction . Without the wheels helpingto holdthe tiller back , the tineswill attemptto propelthe tiller - oftencausingthe tiller WAHNINL _ : Before to skip rapidly acrossthe ground . ( Sometimes , slight downwardpressureonthe handlebars tilling , contact your will helpgetthrough a particularlytough sectionof sod or unbrokenground , but in most cases telephone or utilities this won't benecessary . ) company and inquire if undergroundequipment or â¢ Avoidtrying to digtoo deeplytoo quickly , especiallywhenbustingsod orwhentilling soil that lines are usedon your hasn't beentilled for sometime . Useshallowdepth regulatorsettings ( only an inch or two property . Do not till near deep ) for thefirst passesthrough the soil . Witheachsucceedingpass , diganotherinch ortwo buriedelectric cables , deeper . ( Wateringthe areaafew daysprior to tilling will maketilling easier , as will lettingthe telephone lines , pipes or newlyworkedsoil setfor a day or two beforemakinga final , deeptilling pass . ) hoses . â¢ When cultivating ( breakingup surfacesoil aroundplantsto destroyweeds , seeFig . 4 - 9 ) , adjustthe tinesto dig only 1 " to 2 " deep . Using shallowtilling depthshelps preventinjury to plantswhose rootsoftengrowcloseto the surface . If needed , lift up onthe handlebarsslightly to preventthe tinesfrom diggingtoo deeply . ( Cultivatingon a regularbasisnot only eliminatesweeds , it also loosensandaeratesthe soil for bettermoistureabsorptionandfaster plantgrowth . ) ChoosingCorrectWheel & Tine Speeds With experience , you will find the " just right " tilling depth andtilling speedcombination that is bestfor your garden . Setthe enginethrottle leverat a speedto givethe engineadequatepowerandyetallow it to operateat the slowestpossiblespeed . . . atleast until you haveachievedthe maximumtilling depth you desire . Fasterenginespeedsmaybe desirablewhen makingfinal passesthrough the seedbedor whencultivating . Selectionof the correct enginespeed , in relationto the tilling depth , will ensurea sufficientpower levelto do the jobwithout causingthe engineto labor . Letthe Tiller Dothe Work AvoidMaking Footprints AvoidTilling Soggy , Wet Soil Whiletilling , relaxandletthe wheelspullthe Wheneverpossible , walk on the untilled Tilling wet soil often results in large , hard tiller alongwhile the tines do the digging . sideof the unit to avoid makingfootprints in clumps of soil that can interferewith plant - Walkon the side that is not yet finished ( to your freshly tilled or cultivated soil . Foot - ing . If time permits , wait a day or two after avoid makingfootprints in the freshly tilled prints causesoil compactionthat can ham - heavyrains to allow the soil to dry before soil ) and lightly , but securelygrip the han - per root penetrationand contribute to soil tilling . Testsoil by squeezingit into a ball . If dlebarwith just onehand . erosion . They can also " plant " unwanted it compressestoo easily , it is too wet to till . weed seeds back into the freshly tilled ground . Preparing Seedbeds â¢ Whenpreparingaseedbed , go overthe samepathtwice inthefirst row , then over - lapone - halfthetiller width onthe rest of the passes ( seeFig . 6 ) . Whenfinishedin onedirection , makea secondpassat a right angle , as shownin Fig . 4 - 7 . Overlap eachpassfor best results ( invery hardground , it maytakethree or four passesto thoroughlypulverizethe soil . ) Fig . 4 - 6 Fig . 4 - 7 Cultivating â¢ If the gardensizewill not permitlengthwiseandthencrosswisetilling , then over - With planning , you can = = . . _ vp . = = _ . v _ _ lapthefirst passesby one - halfatiller allow enoughroom _ " _ ( _ width , followedby successivepasses . . . . . . . v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . betweenrows to cultivate _ _ at one - quarterwidth ( seeFig . 4 - 8 ) . _ _ ( seeFig . 4 - 9 ) . Leaveroom _ _ for the hood width , plus enough extra _ _ ' _ ' Fig . 4 - 8 room for future plant Fig . 4 - 9 growth . 14
TILLINGTIPS & TECHNIQUES ( CON'T ) PowerComposting Powercompostingsimply meanstilling underandburying in the soil all mannerof organic WAHNIN ( 3 : When power matter suchas crop residues , leaves , grassclippingsand covercrops . Thismaterialwill de - composting , do not keepthe composeduring the non - growingseasonandadd importantnatural nutrientsto the soil . DepthRegulator Leverat a deepsetting if the tiller jumps Thefirst placeto beginis with crop residuessuchas leftovervines , stalks , stemsandroots . or bucks . Powercompostthesecrop residuesas soonas theyfinish bearing . Thesoonerthis is done , If jumping or bucking occurs , the better , as tendergreenmatteris easierto till under . Usethe deepestdepthregulatorset - movethe Depth Regulator ting possiblewithout causingthe engineto laboror the tiller to jump ahead . Lever down to ashallow Standingcornstalks of reasonableheightcan be powercomposted . Pushingover ( but not setting andthen slowly uprooting ) cornstalkswill often makeit easierto chop upthe stalks . Keepthe tines clearof increasethe tilling depth on excessivetanglingby " fishtailing " or frequentlyusing reverse . Makeseveralpasses , then re - later passes . turn a fewdays laterto finish off any remainingstubble . Failureto follow this warning Aftertilling undercrop residues , addmoreorganicmattersuchasleaves , grassclippingsand could result in personal injury . evenkitchenscraps . Whentilled into the soil , this organic matterwill decomposeandadd evenmore importantnutrients to the soil . Afterpower composting , you maywant to planta " greenmanure " covercrop to protectthe soil duringthe off - season . Yousimply grow a crop of clover , alfalfa , buckwheat , peas , beans , rye grass , grain , or kaleandthen till it into the soil priorto the planting season . Tilling On Slopes Readthe followingrecommendationsbeforetilling onslopes : WAHNING : Do not Ifyou must gardenon a moderateslope , pleasefollow two very importantguidelines : operatetiller on aslope too steepfor safe operation . Till 1 . Till only on moderateslopes , neveronsteepgroundwherefooting is difficult ( reviewsafe - slowly and besure you have ty rulesin Section1 : Safetyof this manual ) . good footing . Neverpermit 2 . We recommendtilling up and down slopes ratherthan terracing . Tilling vertically on a tiller to freewheeldown slopeallows maximumplantingareaandalso leavesroomfor cultivating . slopes . Failureto follow this IMPORTANTW : hentilling onslopes , besurethe correct oil levelis maintainedin the engine warning could result in ( checkeveryone - half hour of operation ) . The inclineof the slopewill causethe oil to slant personal injury . awayfrom its normallevelandthis can starveenginepartsof requiredlubrication . Keepthe motor oil levelat thefull point at all times ! Tilling Upand DownSlopes ( Vertical Tilling ) â¢ To keepsoil erosionto aminimum , besureto addenoughorganicmatterto the soil sothat it has goodmoisture - holdingtexture andtry to avoid leavingfootprints or wheelmarks . â¢ Whentilling vertically , tryto makethe first passuphillas thetiller digs moredeeplygoing uphillthan it doesdownhill . In soft soil or weeds , you mayhaveto lift the handlebarsslightly while going uphill . Whengoingdownhill , overlapthe first passby aboutone - halfthe width of the tiller . Tilling AcrossSlopes Without UsingTerraces ( HorizontalTilling ) â¢ If verticalor terracinggardeningaren'tpracticalfor you , then you cantill laterallyacrossa slope . We don't recommendthis methodas it can createunsurefooting and invitessoil erosion . â¢ As interracegardening , startat the top of the slopeandoverlapthe first passby halfthe width of thetiller . Foraddedstabilityof thetiller , alwayskeepthe uphillwheelinthe soft , newlytilled soil . TerraceGardening â¢ When a slope is too steepor too shortfor verticaltilling , it may benecessaryto till acrossthe slopeand createterracedrows . Terraces arerows thatarecut into the side of a slope , creatinga narrow , but flat areaon whichto plant . â¢ Ona long slope , you can makeseveralterraces , onebelowthe other . â¢ Terracesshould beonly 2 - t0 - 3 feetwide . Diggingtoo far into theside of the slopewill exposepoor subsoilthat is unproductivefor plants . 15
TILLINGTIPS & TECHNIQUES ( CON'T ) TerraceGardening ( continued ) â¢ Tocreateaterrace , start at the top of the slopeandwork down . Gobackandforth acrossthe first row as shownin Fig . 4 - 10 . â¢ Eachsucceedinglowerterraceis started bywalking belowthe terraceyou're pre - paring . Foraddedstabilityof thetiller , alwayskeepthe uphillwheelinthe soft , new - ly tilled soil . Do not till the last 12 " or more of the downhill outsideedgeof each terrace . This untilled strip helps prevents the terracesfrom breakingapart and washingdownhill . Italso providesa walkingpath betweenrows . _ , REPEAT Fig . 4 - 10 Clearingthe Tines Thetines havea self - clearingactionwhich eliminatesmost tangling of debris in â¢ It maybenecessaryto removethe debris by hand ( a pocketknifewill helpyou to cut awaythe mate - the tines . However , occasionallydry grass , stringy stalksor tough vinesmaybe - cometangled . Follow theseproceduresto helpavoid tangling and to cleanthe rial ) . Besure to stopthe engineanddisconnectthe sparkplugwire beforeclearingthe tines by hand . tines , if necessary . â¢ Toreducetangling , setthedepthregulatordeepenoughto getmaximum " chop - WARNING : Beforeclearing the ping " actionasthe tineschop the materialagainstthe ground . Also , try to till un - tines by hand , stop the engine , allow dercrop residuesor covercropswhile theyare green , moist andtender . all moving parts to stop and â¢ While powercomposting , try swayingthe handlebarsfrom side to side ( about disconnectthe spark plug wire . 6 " to 12 " ) . This " fishtailing " actionoften clearsthe tines of debris . Removethe ignition keyon electric â¢ Iftangling occurs , lift the tinesout of the soil andrun thetiller in reverse ( if unit start models . is equippedwith poweredreverse ) for afewfeet . Thisreversingactionshould un - Failureto follow this warning could wind a gooddealof debris . result in personal injury . tiller aheadof you . Havea person at each LOADING AND UNLOADING â¢ Usesturdy ramps and manually ( engine side to turn the wheels . shut off ) roll the tiller into and out of the THE TILLER vehicle . Twoor more peopleare neededto â¢ When going down ramps , walkbackward do this . WARNING : Loadingand with the tiller following you . Keepalert for unloading the tiller into a â¢ The ramps must bestrong enoughto any obstacles behind you . Position a per - vehicleis potentially hazardous support the combined weight of the tiller son at each wheel to control the speed of andwe don't recommend doing and any handlers . The rampsshould pro - the tiller . Nevergo down ramps tiller - first , so unlessabsolutely necessary , vide goodtraction to preventslipping ; they as the tiller could tip forward . asthis could result in personal should have side rails to guide the tiller â¢ Placewooden blocks onthe downhill side injury or property damage . along the ramps ; andthey should have a of the wheels if you needto stop the tiller However , if you must load or locking deviceto secure them to the from rolling down the ramp . Also , use the vehicle . unloadthe tiller , follow the blocks to temporarily keepthe tiller in guidelines given next . â¢ Thehandlersshould wearsturdy footwear place on the ramps ( if necessary ) , and to that will helpto preventslipping . chock the wheels in placeafter the tiller is â¢ Before loading or unloading , stop the en - in the vehicle . â¢ Position the loading vehicle so that the gine , wait for all parts to stop moving , ramp angle is as flat as possible ( the less â¢ After loading the tiller , prevent it from disconnect the spark plug wire and let the incline to the ramp , the better ) . Turn the rolling by engagingthe wheels in the engine and muffler cool . vehicle's engine off and apply its parking WHEELDRIVEposition . Chockthe wheels â¢ Thetiller is too heavyand bulky to lift brake . with blocks andsecurely tie the tiller down . safely by one person . Twoor more people should share the load . â¢ When going up ramps , stand in the normal operating position and push the 16
SECTION5 : MAINTENANCE WARNING : Before TILLERLUBRICATION If acover is leaking , check for loose screws . If the screws aretight , a new inspecting , cleaning or servicing After every 10 operating hours , oil or gasket or oil seal may be required . the machine , shut off engine , grease the lubrication points shown in wait for all moving parts to come If the leak is from around a shaft and oil Figure5 - 1 and described below . to acomplete stop , disconnect seal , the oil seal probably needsto be Useclean lubricating oil ( # 30weight motor spark plug wire and movewire replaced . Seeyour authorized dealeror oil is suitable ) and clean generalpurpose awayfrom spark plug . Remove contact the factory for service or advice . grease ( greasecontaining a metallubricant ignition keyon electric start IMPORTANT : Neveroperatethe tiller if is preferred , if available ) . models . the transmission is low on oil . Checkthe Failureto follow these â¢ Removethe wheels , cleanthe wheel shaft oil level after every 30 hours of instructions can result in serious ( A , Fig . 5 - 1 ) and apply a thin coating of operation and wheneverthere is any oil personal injury or property grease to the wheel shaft . leakage . damage . â¢ Greasethe back , front and sides of the CHECK HARDWARE depth regulator lever ( B , Fig . 5 - 1 ) . MAINTENANCESCHEDULE Checkfor loose or missing hardwareaf - â¢ Removethe tines andclean the tine shaft ter every 10 operatinghours andtighten PROCEDURE NOTES ( C , Fig . 5 - 1 ) . Usea file or sandpaperto gen - or replace ( as needed ) before reusing tly removeany rust , burrs or rough spots Check motor oil level 2,3 tiller ( especiallyaround holes in shaft ) . Apply Cleanengine 2,7 Besure to checkthe screws underneath grease to ends of shaft before installing Check drive belttension 1,4 tines . the tiller hoodthat securethe transmis - Check nuts and bolts 1,4 sion coverandthe DepthRegulatorLever â¢ Oil the threads on the handlebar height to the transmission . Changemotor oil 4,6,9 adjustment screws and the handlebar Lubricatetiller 4 attaching screws ( D , Fig . 5 - 1 ) . CHECKTIRE PRESSURE 7 Service engine air cleaner system ( Models with pneumatictires ) Check gearoil level in transmission 1,5 Checkthe air pressurein both tires . The Checktines for wear 5 air pressure should be between 15 PSi 5 Check air pressure in tires and 20 PSi ( pounds per square inch ) . ( if unit haspneumatic tires ) Keepboth tires equally inflated to help Service spark plug prevent machinefrom pulling to one NOTES side . 1 Check after first 2 hours of break - in operation . 2 Before each use . TRANSMISSION 3 Every 5 operating hours . GEAROIL SERVICE 4 Every 10 operating hours . 5 Every 30 operating hours , Checkthe transmission gear oil level 6 Changemore frequently in dusty conditions . after every 30 hours of operation or 7 - See Engine Owner's Manual forservice wheneveryou notice any oil leak . Oper - recommendations . 8 - Whichever time interval occurs firsL ating the tiller when the transmission is g - Changeafter first 2 hours of break - in low on oil can result in severedamage . A . To Checkthe Transmission Figure 5 - 1 Gear Oil Level : 1 . Checkthe gear oil level when the CHECKFOR OIL LEAKS transmission is cool . Gearoil will Beforeeach use , checkthe tiller for signs of expand in warm operatingtemperatures an oil leak - - usually a dirty , oily accumu - and this expansionwill provide an incor - lation either on the unit or on the floor . rect oil level reading . A little seepagearound a cover or an oil 2 . With the tiller onlevelground , pullthe seal is usually not a causefor alarm . How - Depth Regulator Leverall the way up . ever , if the oil drips overnight , then imme - 3 . Removethe oil fill plug ( A , Fig . 5 - 2 ) diate attention is needed . Ignoring an off from the transmission housing andlook leak can result in severetransmission inside the oil fill hole to locatethe main damage ! drive shaft situated below the hole . 17
moving partsto come to a complete stop , disconnect spark plug wire and move wire awayfrom , _ WARNING : Beforeinspecting , cleaning or servicing the machine , shut off engine , wait for all spark plug . Failureto follow these instructions can result in serious personal injury or property damage . B . ToDrain theTransmissionGear Oil : 4 . Thegear oil level is correct if the gear oil BOLOTINES is approximately halfway upthe side of the Thetransmission gear oil does not needto The bolo tines will wear with useand main drive shaft . bechanged unless it has beencontaminat - should be inspected at the beginning of ed with dirt , sand or metal particles . 5 . Ifthe gearoil level is low , addgear oil as eachtilling seasonand after every30 oper - described next . If the gearoil level is okay , 1 . Drain gasoline from the fuel tank or run ating hours . The tines can be replacedei - securely replacethe oil fill plug . the engine until the fuel tank is empty . See ther individually or as a complete set . See " DANGER " statement below . the Parts List pagesfor tine identification IMPORTANT : Donot operatethe tiller if the and part numbers . gear oil level is low . Doing so will result in WARNING : Gasolineis severedamageto the transmission com - A . Tine Inspection : highly flammable andits vapors ponents . areexplosive . Followthese With use , the tines will becomeshorter , safety practicesto prevent narrower and pointed . Badlyworn tines personal injury or property will result in a loss of tilling depth , and re - damagefrom fire or explosion . duced effectiveness when chopping up andturning under organic matter . Allow the engine and muffler to cool for at least two minutes before drain - B . Removin _ nstalling a Single Tine : ing the Uller's gasolinetank . 1 . With the engine shut off andthe spark Do not allow open flames , sparks , plug wire disconnected , remove the two matchesorsmokingin the area . screws ( A , Figure 5 - 3 ) , lock washers ( E ) and nuts ( B ) that attach a single tine to a Wipe away spills and pushtiller away tine holder . If needed , use penetrating oil fromspilled fuel . on the nuts . Use only an approved fuel container and store it safely out of the reach of 2 . When installing a single tine , besure to children . position it so that its cutting edge ( sharp ) Figure 5 - 2 : Remove oil fill p / ug ( , 4 ) to check will enter the soft first as the tiller moves Do notstoregasoline in an area where gear oil level and to addgear oil . Remove forward . its vaporscould reach an openflame four coverscrews ( B ) to draingear oil . orspark , orwhere ignitionsourcesare C . Removin _ nstalling a Tine Assembly : present ( suchas hot water and space 1 . Atine assemblyconsists of eight tines 6 . If adding only a few ounces of gear oil , heaters , furnaces , clothes dryers , mounted on atine holder . use API rated GL - 4or GL - 5gearoil having stoves , electric motors , etc . ) a viscosity of SAE140 , SAE85W - 140 or 2 . If removing both tine assemblies , mark SAE80W - 90 . If refilling an empty trans - them " left " and " right " before removal . Re - mission , useonly GL - 4gear oil having a 2 . Drain the oil from the engine . movethe screw ( C , Figure5 - 3 ) , lock wash - viscosity of SAE85W - 140 or SAE140 . 3 . Removefour screws ( B , Figure5 - 2 ) and er ( E ) and Iocknut ( D ) that secure the tine assemblyto the tine shaft . If necessary , IMPORTANT : Do not use automatic trans - removetransmissioncoverandgasket . usea rubber mallet to tap the tine assem - mission fluid or motor oil inthe transmis - 4 . Removethe left - side wheel . bly outward off the shaft . sion . 5 . Tilt the left - side wheel shaft into a drain panand allow the gearoil to drainthrough 3 . Before reinstallingthe tine assembly , in - 7 . While checking frequently to avoid over - the top of the transmission . spectthe tine shaft for rust , roughspots or filling , slowly add gear oil into the oil fill 6 . Reinstall the wheel . burrs . Lightly file or sand , as needed . Ap - hole until it reachesthe halfway point on ply a thin coat of greaseto the shaft . the drive shaft . 7 . Install a new gasket ( do not reuse old gasket ) and reinstall the transmission cov - 4 . Install each tine assemblyso that the 8 . Securely replacethe oil fill plug . er . cutting ( sharp ) edge of the tines will enter thesoft first when the tiller moves forward . 8 . Refill the transmission using GL - 4gear oil ( SAE85W - 140 or SAE140 ) . Securethe tine assemblyto the tine shaft using the screw and Iocknut 9 . Refill the enginewith motor oil and re - plenish the fuel tank with gasoline . 18
moving partsto come to a complete stop , disconnectspark plug wire and move wire awayfrom , _ WARNING : Beforeinspecting , cleaning or servicing the machine , shut off engine , wait for all spark plug . Failureto follow these instructions can result in serious personal injury or property damage . b Unthreadthe hex nut ( C , Figure 5 - 4 ) halfway up the adjustment screw ( D ) . c . Unhookthe top of the spring from the Forward Clutch Bail . d . Usepliers to preventthe adjuster ( B ) FRONT / FORWARD from turning andturn the slotted screw lo - cated inside the spring clockwise ( viewed from operator's position ) to increaseten - sion onthe spring . Turn the screw counter - clockwise to decreasetension . Once adjusted , reattachthe spring to the For - ward Clutch Bail . C e . RepeatSteps2and3to re - measurethe \ length of the spring . Whenthe secondmea - surementis between1 / 16 " - to - 3 / 16 " longer thanthefirst measurementr , etightenthe hex nut ( C ) againstthe top of the adjuster ( B ) . ReplacementBelt Information If the drive belt needsto be replaced , see Figure 5 - 3 : Instafl tinesso that cuttingedge of tines enter soft first when tiller movesforward . your local authorizeddealeror refer to the Parts List for ordering information . Use tension is correct if this second measure - CHECKINGAND ADJUSTING only afactory - authorized belt as an " over - ment is between1 / 6 " - to - 3 / 16 " longerthan FORWARDDRIVE BELT TENSION the - counter " belt may not perform satis - the first measurement . It is important to maintain correct tension factorily . The procedure requires average 4 . If the spring is too short ( lessthan on the forward drive belt . A loose belt will mechanicalability andcommonly available 1 / 16 " ) , the tension is too loose . If the causethe tinesandwheelsto slow down - - tools . spring is too long ( more than 3 / 16 " ) , the or stop completely - - eventhough the en - tension is too tight . gine is running at full speed . A too tight belt can result in unintentional tine move - 5 . Toadjust the length of the spring : a . Releasethe Forward Clutch Bail . ment when the clutch bail is in the Neutral ( released ) position . â¢ Checkbelt tension after the first two hours of break - in operation andafter every 10 operating hours . â¢ At the end of each tilling season , check the belt for cracks , cuts or frayededges and replace it as soon as possible . ToCheck ForwardBeltTension : 1 . Stop engine , wait for all parts to stop moving and disconnect spark plug wire . 2 . With the ForwardClutch Bailinan open ( released ) position , measureand note the overall length of the cable spring ( A , Figure 5 - 4 ) by measuringfrom the outermost coil to the outermost coil . Figure5 - 4 : Tocheckforwardbe / t tension , taketwomeasurementsof the 3 . SqueezetheForwardClutch Bailagainst overa / / / engthof thecoilsin thespring - - first withthedutch bail open , the handlebar ( see Figure 5 - 4 ) and re - then with thedutch bail closedagainstthe handlebar . measurethe length of the coils . The belt 19
moving partsto come to a complete stop , disconnectspark plug wire and move wire awayfrom , _ WARNING : Beforeinspecting , cleaning or servicing the machine , shut off engine , wait for all spark plug . Failureto follow these instructions can result in serious personal injury or property damage . 5 . Releasethe ReverseClutch Control FORWARDCLUTCH Replacement Belt Information knob . andthen unthread the inner jam nut BAIL ADJUSTMENT If the drive belt needsto be replaced , see ( C , Figure 5 - 6 ) oneto two turns . Pull the your local authorizeddealeror refer to the If the Forward Clutch Baildoes not func - threaded cable adjuster ( A , Figure 5 - 6 ) to Parts List for ordering information . Use tion properly , first checkthat the forward the left until the innerjam nut ( C ) touches only a factory - authorized belt as an " over - drive belt is adjusted properly ( see Check - the bracket . the - counter " belt may not perform satis - ing andAdjusting Forward Drive Belt Ten - factorily . The procedure requires average 6 . Preventthe inner jam nut ( C ) from turn - sion ) . If this fails to correct the problem , ing and tighten the outer jam nut ( D ) mechanicalability andcommonly available contact Troy - Bilt LLC or your authorized tools . againstthe bracket . Preventthe outer jam dealerfor service advice . nut ( D ) from turning and tighten the inner ENGINECLEANING jam nut ( C ) againstthe bracket . CHECKINGANDADJUSTINGRE - Keepingthe engineclean will help to en - 7 . Measurethe gap by repeating Step 3 . VERSEDRIVEBELTTENSION sure smooth operation and prevent dam - Readjust as neededby repeating Steps 5 ( Model 634A only ) and 6 . agefrom overheating . Referto the Engine It is important to maintain correct tension Owner's Manualfor enginecleaning ser - 8 . Reinstall the belt cover . on the reversedrive belt . A loose belt will vice intervals and instructions . Besure causethe tines andwheelsto slow down - thatthe muffler is cool beforeservicing the or stop completely - eventhough the en - engine . gine is running at full speed . AIRCLEANERSERVICE Whenchecking belttension , also checkthe The air cleaner filters dirt and dust out of belt for cracks , cuts or frayed edgesand the air before it enters the carburetor . Op - replace it as soon as possible . erating the enginewith a dirty , clogged air â¢ Checkbelt tension after the first two filter can causepoor performance and hours of break - in operation andafter every damageto the engine . Neveroperatethe 10 operating hours . enginewithout the air cleanerinstalled . In - ToCheckReverseBeltTension : spect and service the air cleaner more of - 1 . Stop engine , wait for all parts to stop ten if operating in very dusty or dirty moving and disconnect spark plug wire . conditions . Referto the engine Owner's Manualfor air cleanerservice intervals and 2 . Removescrew in plastic belt cover and Figure5 - 5 : Measure cable wire lengthto instructions . slide belt cover ( which is attachedto for - checkfor correctreversebelt tension . ward clutch cable ) out of the way . ENGINE OIL SERVICE 3 . Haveanassistant pull the Reverse Checkthe engine oil level before each use Clutch Control knob all the way out and and after every five hours of continuous hold it inthat position . Measurethe length operation . Runningthe engine when it is of the cable wire betweenthe end of the low on oil will quickly ruin the engine . threaded cableadjuster ( A , Figure5 - 5 ) and the end of the Z - fitting ( B ) to which the ca - It is recommendedthat you changethe ble wire is attached . motor oil after every 10hours of operation and even sooner when operating in ex - 4 . Thebelt tension is idealif the cablewire tremely dirty or dusty conditions . Referto length measuresbetween1 / 8 " to 1 / 4 " . If it is the EngineOwner's Manual for detailed lessthan 1 / 8 " ( andif there is no reverseac - service instructions . tion whenthe tiller is running ) , then make the following adjustments A . ToCheckthe EngineOil Level : NOTE : Ifthe lengthis morethan 1 / 4 " , noad - 1 . Parkthetiller ona levelareaandshut off justment is needed - - as long asthe reverse the engine . actionfunctions properly . 2 . Levelthe engine ( use the Depth Regula - Figure5 - 6 : Movethreadedadjuster ( , 4 ) toleft tor Leverto adjust the engineangle ) . toincreasebelttension . 2O
moving partsto come to a complete stop , disconnectspark plug wire and move wire awayfrom , _ WARNING : Beforeinspecting , cleaning or servicing the machine , shut off engine , wait for all spark plug . Failureto follow these instructions can result in serious personal injury or property damage . 3 . Cleanaround the oil dipstick or oil fill THROTTLELEVERADJUSTMENT OFF - SEASONSTORAGE tube ( whichever applies ) to prevent dirt When the tiller won't be used for an ex - If the engine does not respond to various from falling into the crankcase . throttle lever settings , refer to the Engine tended period , prepareit for storageas fol - 4 . Onengines with an oil fill tube , remove Owner's Manual for service information or lows : the fill cap and add oil ( if required ) until it contact your local authorized engine deal - 1 . Cleanthe tiller and engine . reachesthe top of the fill tube . Reinstallthe er . 2 . Do routine tiller lubrication and check fill cap . WARNING : Operators for loose parts and hardware . 5 . Onengines with a dipstick , remove it shall not tamper with the engine and wipe it clean . Reinsertthe dipstick , 3 . Protect the engine and perform recom - governor settings onthe tighten it securely , and removeit . Add oil mended engine maintenanceby following machine ; the governor controls as neededto bring the level upto the FULL the storage instructions found in the En - the maximum safeoperating mark . Wipe dipstick clean each time oil gine Owner's Manual . Besure to protect speedto protect the engineand level is checked . Do not overfill . Tighten the fuel lines , carburetor and fuel tank all moving partsfrom damage dipstick securely . from gum deposits by removing fuel or by causedby overspeed . treating fuel with a fuel stabilizer ( follow B . ToChange the EngineOil : Authorizedservice shall be enginemanufacturer'srecommendations ) . Changethe engine oil as instructed inthe sought if a problem exists . 4 . Store unit in aclean , dry area . EngineOwner's Manual . 5 . Neverstore the tiller with fuel in the fuel CARBURETOR / GOVERNOR SPARKPLUGSERVICE tank in an enclosedareawhere gas fumes CONTROLADJUSTMENTS could reach an open flame or spark , or Inspect andcleanor replacethe spark plug Thecarburetor wasadjusted at the factory after every 100 operating hours or annual - where ignition sources are present ( space for best operating speed . Referto the En - heaters , hot water heaters , furnaces , etc . ) . ly . Referto the EngineOwner's Manualfor gine Owner's Manual for any adjustment spark plug service instructions . information or see your authorizedengine In some areas , local law requires using re - dealer . sistor spark plugs to suppress ignition sig - The governor controls the maximum safe nals . If the enginewas originally equipped operating speed and protects the engine with a resistor spark plug , use the same andall moving partsfrom damagecaused type for replacement . by overspeeding . Do not tamper with the enginegovernor settings . SPARKARRESTERSCREEN SERVICE If the engine muffler is equipped with a spark arresterscreen , removeand clean it according to the service intervals and in - structions in the EngineOwner's Manual . 21
moving partsto come to a complete stop , disconnectspark plug wire and move wire awayfrom WARNING : Beforeinspecting , cleaning or servicing the machine , shut off engine , wait for all spark plug . Failureto follow these instructions can result in serious personal injury or property damage . TROUBLESHOOTING PROBLEM POSSIBLECAUSE CORRECTION Reconnectwire . Enginedoes not start 1 . Spark plug wire disconnected 2 . Engine Throttle Control Lever incorrectly set . 2 . Put lever in STARTposition . 3 . Add fuel . 3 . Fueltank empty . 4 . Choke control ( if so equipped ) in incorrect position . 4 . See Engine Owner's Manual . 5 . Drain fuel and add fresh fuel . 5 . Stale gasoline . 6 . Dirty air filter . 6 . Clean or replace filter . 7 . Defective or incorrectly gapped spark plug . 7 . Inspect spark plug . 8 . Carburetor out of adjustment . 8 . See Engine Service Dealer . 9 . Misadjusted throttle control . 9 . See Engine Service Dealer 10 . Dirt or water in fuel tank . 10 . See Engine Service Dealer . Enginerunspoorly . 1 . Defective or incorrectly gapped spark plug . Inspect spark plug ( see Engine Owner's Manual ) . 2 . Dirty air filter ( s ) . 2 . Clean or replace ( see Engine Owner's Manual ) . 3 . Carburetor out of adjustment . 3 . See Engine Service Dealer . 4 . Stale gasoline . 4 . Replacewith fresh gasoline . 5 . Dirt or water in fuel tank . 5 . See Engine Service Dealer . 6 . Engine cooling system clogged . 6 . Cleanair cooling system ( see Engine Owner's Manual ) . Engineoverheats . 1 . Engine cooling system clogged . Cleanair cooling area ( see Engine Owner's Manual ) . 2 . Carburetor out of adjustment . 2 . See Engine Service Dealer . 3 . Oil level is low . 3 . Check oil level ( see Engine Owner's Manual ) . Enginedoesnotshotoff 1 . Misadjusted throttle control or ignition switch . 1 . See Engine Owner's Manual or Engine Service Dealer . WheelsandTineswillnotturn 1 . Review Sections 3 and 4 . 1 . Improper useof controls . 2 . Worn , broken , or misadjusted drive belt ( s ) . 2 . See " Checking Drive Belt Tension , " Section 5 . 3 . Internal transmission wear or damage . 3 . Contact local dealer or the factory . 4 . Bolt loose in transmission pulley . 4 . Tighten bolt . 1 . Wheel Drive Pins not in WHEEL DRIVE . 1 . See " Wheel Drive Pins " in Section 3 . Tinesturn , butwheelsdon't , 2 . Bolt loose in transmission pulley . 2 . Tighten bolt . 3 . Internal transmission wear or damage . 3 . Contact local Dealer or the Factory . WheelsTurn , butTinesDon't , 1 . Tine holder mounting hardware missing . 1 . Replacehardware . 2 . Bolt loose in transmission pulley . 2 . Tighten bolt . 3 . Internal transmission wear or damage . 3 . Contact local Dealer or the Factory . 1 . Worn tines . Poortillingperformance . 1 . See " Bolo Tines " ( Section 5 ) . 2 . Improper Depth Regulator setting . 2 . See " Tilling Tips & Techniques , " Section 4 . 3 . See Section 4 . 3 . Incorrectthrottle setting . 4 . Forward Drive Beltslipping . 4 . See " Checking Forward Drive Belt Tension , " Section 5 . 22
SECTION6 : MODELS630C , 634A & 634KPARTSLIST 1 : : : : : 0 13 3 2O 4 15 _ 12 7 _ ( A ) For Mode1630C ( B ) For Mode1634A and 634K REF REF PART NO . DESCRIPTION PARTNO . DESCRIPTION NO . NO . 1 1185469 13 GW - 55018 Spirol Pin ( B ) Depth Regulator Lever 715 - 0108 14 686 - 04041 Spirol Pin ( A ) Tine HoodAssembly ( B ) 2 710 - 0597 686 - 04043 HexHd . Screw , 1 / 4 - 20 x 1 Tine HoodAssembly ( A ) 3 710 - 0599 15 GW - 55088 Screw , Self - Tapping , I / 4 - 20 x 1 / 2 Bushing 4 710 - 0874 16 GW - 9384 HexHd . Screw , 5 / 16 - 18 x 1 - 1 / 4 Spring , Depth Regulator 5 710 - 3008 " 17 GW - 9534 HexHd . Screw , 5 / 16 - 18 x 3 / 4 Spacer 6 712 - 0324 18 710 - 04048 Lock Nut , 1 / 4 - 20 ( B ) HexHd . FlangeScrew , 5 / 16 - 18 x 1 712 - 04064 19 786 - 04191 FlangeLock Nut , 1 / 4 - 20 ( A ) Trail Shield Stop Bracket 20 618 - 04000 7 712 - 0429 t Lock Nut , 5 / 16 - 18 ( B ) Transmission Assembly ( B ) 712 - 04063 618 - 04254 FlangeLock Nut , 5 / 16 - 18 ( A ) Transmission Assembly ( A ) 8 1916707 21 1916570 Support Bracket ReverseStop Arm ( A ) 9 736 - 0119 22 1916771 Lock Washer , 5 / 16 ( B ) Split Spacer , . 462x . 328 x 1.63 ( A ) 10 GW - 55013 - 1 23 710 - 0395 Hood Bracket , Left Hand Screw , 5 / 16 - 18 x 2.25 ( A ) 11 GW - 55013 - 2 24 736 - 0275 Hood Bracket , Right Hand FlatWasher , . 344 x . 688 x . 065 ( A ) 12 GW - 55015 Drag Bar * 4 on Mode1634A t 6 on Mode1634A and 634K 23
MODELS630C , 634A & 634K 5 15 16 12 2O I 17 22 18 6 14 18 23 24
MODELS630C , 634A & 634K REF PARTNO . DESCRIPTION NO . 1 1916719 CableAssembly , Reverse Clutch ( B ) 2 1916755 Upper Handlebar 3 747 - 04210 Bail , ForwardClutch 4 1918745 CableAssembly , Forward Clutch 5 710 - 0599 Screw , Self - Tapping , I / 4 - 20 x 1 / 2 6 710 - 3008 Screw , Hex , 5 / 16 - 18 x 3 / 4 7 712 - 3009 HexLock Nut , 5 / 16 - 18 8 786 - 04188 HandlebarSupport 9 GW - 55043 Lower Handlebar 10 786 - 04200 Panel 11 GW - 55044 Tab , Conduit Mount 12 GW - 9855 Screw , # 10 - 24 x 2 13 725 - 0157 CableTie 14 736 - 3050 FlatWasher , 3 / 8 15 786 - 04040 Bracket , ReverseClutch Cable ( B ) 16 732 - 04185 Spring , Forward Clutch 17 710 - 0106 HexHd . Screw , 1 / 4 - 20 x 1 - 1 / 4 18 710 - 0216 Screw , Hex , 3 / 8 - 16 x 3 / 4 20 710 - 0805 Screw , Hex , 5 / 16 - 18 x 1 - 1 / 2 21 712 - 0121 HexNut , # 10 - 24 22 712 - 0291 HexLock Nut , 1 / 4 - 20 23 712 - 3000 HexNut , 3 / 8 - 16 25 736 - 0119 LockWasher , 5 / 16 REF PARTNO . DESCRIPTION NO . 1 749 - 04193 Bumper ( B ) 2 710 - 0395 HexScrew , 5 / 16 - 18x 2 - 1 / 4 ( B ) 3 712 - 04063 Nut , FlangeLock , 5 / 16 - 18 ( B ) 4 726 - 0201 SpeedNut ( B } ( A ) For Model 630C ( B ) For Model 634A and 634K 25
MODELS630C , 634A & 634K REF PARTNO . DESCRIPTION NO . 1 GW - 9517 SnapRing 2 GW - 9400 Drive Shaft Bearing Cup 3 GW - 50043 Support Washer , Rear 4 711 - 04109 Drive Shaft ( B ) 711 - 04110 Drive Shaft ( A ) 5 GW - 9401 Drive Shaft Bearing Cone 6 GW - 1224 - 1 " Shim , Rear BearingCap , . 010 " thick GW - 1224 - 2 " Shim , same as above , except . 030 " thick GW - 1224 - 3 " Shim , same as above , except . 005 " thick GW - 1224 - 4 " Shim , same as above , except . 062 " thick GW - 1325C Shim Set ( Incl . the following shims : ( A ) For Model 6300 two # 1224 - 1 , two 1224 - 2 & one # 1224 - 4 ) ( B ) For Model 634A and 634K * Useas required to obtain between . O05 " and . 015 " allowable end - play . 26
MODELS630C , 634A & 634K 2 3 4 7 FRONT 11 . , J 7 4 REF PARTNO . DESCRIPTION NO . 1 GW - 9512 Retainer , Snap Ring , " E " Type 2 1909950 Retainer , Snap Ring 3 GW - 1166 - * 1 Shim , 0.062 " thick GW - 1166 - 2 " Shim , 0.030 " thick GW - 1166 - 3 " Shim , 0.015 " thick GW - 1166 - 4 " Shim , 0.010 " thick GW - 1166 - 5 " Shim , 0.005 " thick 4 GW - 1086 BronzeBushing 5 711 - 04092 Wheel Shaft ( B ) 711 - 04088 Wheel Shaft ( A ) 6 GW - 9305 Key , Hi - Pro , 1 / 4xl 7 GW - 1132 - 2 Spacer 8 1904278 Worm Gear , Wheel Shaft 9 711 - 04078 Tiller Shaft 10 GW - 1104 Woodruff Key 11 1904279 Worm Gear , Tiller Shaft ( B ) ( A ) For Model 630C 1916542 Worm Gear , Tiller Shaft ( A ) ( B ) For Model 634A and 634K * Useas required to obtain between . O05 " and . 030 " allowable end - play . 27
MODELS630C , 634A & 634K 2 2 I 11 " 10 12 13 10 * Included with transmission when purchased as an assembly only . Remove and discard when installing the transmission on tiller . REF REF PARTNO . DESCRIPTION PARTNO . DESCRIPTION NO . NO . 1 GW - 9727 721 - 04031 Plug , TransmissionOilFill 8 OilSeal , WheelShaft 2 710 - 04049 619 - 04013 HexHd . FlangeScrew , 5 / 16 - 18x 5 / 8 , Gr . 5 9 TransmissionHousingAssembly 3 736 - 0119 721 - 04036 LockWasher5 , / 16 10 OilSeal , TineShaft 4 1918377 736 - 3008 * RearCover , Transmission 11 WasherF , lat , . 344x . 750x . 120 5 1916641 718 - 04008 FrontCover , Transmission 12 RearBearingCap 6 GW - 50032 710 - 04048 GasketH , ousingCover 13 HexHd . FlangeScrew , 5 / 16 - 18x 1 7 721 - 04030 710 - 3008 OilSeal , DriveShaft 14 HexHd . FlangeScrew , 5 / 16 - 18x 3 / 4 28
MODELS630C , 634A & 634K Hold Tines With Blunt End Toward You 10 FRONT RIGHT - HANDTINE LEFT - HAND TINE NOTE : Identify Left and Right sides of tiller by standing in operator position and facing direction of forward travel , 1 WHEELSHAFT , . 11 ( A ) 3 ( B ) TINE SHAFT REF REF PART NO . DESCRIPTION PARTNO . DESCRIPTION NO . NO . 1 710 - 0514 734 - 04162 HexHd . Screw , 3 / 8 - 16 x 1 , Grade5 Wheel & Tire Ass'y - - Left Side Only ( A ) 8 734 - 04161 2 GW - 50049 - 02 Single Bolo Tine - Left Hand ( A ) ( B ) Wheel & Tire Ass'y - - Right SideOnly ( A ) 3 712 - 3000 9 GW - 9380 HexLock Nut , 3 / 8 - 16 Clevis Pin , . 312 " x 1 - 3 / 4 " 4 710 - 0347 10 GW - 9338 Hair Pin Cotter Hex Hd . Screw , 3 / 8 - 16 x 1 - 3 / 4 5 GW - 50049 - 01 11 712 - 04065 Single BoloTine - Right Hand ( A ) ( B ) FlangeLock Nut , 3 / 8 - 16 ( A ) 6 1916747 - - GW - 1901 Tine Holder ( B ) Bolo Tine ReplacementSet ( Incl . eight right - hand tines , eight left - hand tines and 1915075 Tine Holder ( A ) required hardware . ( A ) ( B ) 7 1917487 Wheel & Tire Ass'y - - Left / Right Side ( B ) ( A ) For Model 630C ( B ) For Model 634A and 634K 29
MODELS630C , 634A & 634K 24 3O
MODELS630C , 634A & 634K REF REF PARTNO . DESCRIPTION PARTNO . DESCRIPTION NO . NO . 1 736 - 0159 23 710 - 0520 FlatWasher , 5 / 16 ( B ) Hex Hd . Screw , 3 / 8 - 16 x 1 - 1 / 2 2 714 - 0139 24 710 - 0599 Key , 3 / 16 " x 2 " Screw , Self - Tapping , 1 / 4 - 20 x 1 / 2 1108841 25 710 - 3103 Key , 3 / 16 " x 1.5 " ( O ) Hex Hd . Screw , 5 / 16 - 18 x 2 ( B ) 1916531 26 712 - 3000 Pulley , EngineDrive Lock Nut , 3 / 8 - 16 619 - 04016 27 712 - 3009 Pulley , EngineDrive ( C ) Lock Nut , 5 / 16 - 18 ( B ) 1916532 28 736 - 0119 Transmission Pulley ( B ) LockWasher , 5 / 16 656 - 04023 29 736 - 3050 Transmission Pulley ( A ) FlatWasher , 3 / 8 5 1916535 30 736 - 3090 FlatWasher Pulley , ReverseIdler ( B ) 6 1916652 31 710 - 0151 Guard , Belts / Pulleys Rex Hd . Screw , 3 / 8 - 24 x 2.00 7 1916657 Forward Drive Belt 710 - 0459A Hex Hd . Screw , 3 / 8 - 24 x 1.50 ( C ) 8 1916658 32 GW - 1138 - 2 ReverseDrive Belt ( B ) Shim ( D ) 9 1916660 Belt Cover 736 - 0315 FlatWasher , . 75x 1.5 x . 125 ( A } 10 1916724 33 GW - 50027 ReverseReturn Spring ( B ) Support Washer 11 1916725 34 GW - 55034 ReverseBelt Guide ( B ) Forward Return Spring 12 1916726 Forward Belt Guide 35 GW - 55049 Bracket , CableMounting 13 1916794 36 GW - 9090 EngineBracket , Left Forward Idler Pulley 14 1916795 37 GW - 9301 EngineBracket , Right Key , 3 / 16 " x 1 " 15 1917326 38 736 - 3078 FlatWasher Bracket , Belt Cover 16 1917746 Shoulder Washer 39 GW - 9944 Belleville Washer 17 1918731 40 710 - 0672 Reverse Idler Arm ( B ) Hex Hd . Screw , 5 / 16 - 24 x 1.25 ( A ) 18 1918744 Forward Idler Lever 41 710 - 0805 Hex Hd . Screw , 5 / 16 - 18 x 1 - 1 / 2 ( A ) 19 710 - 0117 42 712 - 3010 HexHd . Screw , 5 / 16 - 24 x 1 Hex Nut , 5 / 16 - 18 ( A ) 20 710 - 0237 43 736 - 0242 HexHd . Screw , 5 / 16 - 24 x 5 / 8 Bell Washer , . 340x . 872 x . 060 ( A ) 21 710 - 0376 44 736 - 0452 HexHd . Screw , 5 / 16 - 18 x 1 BellWasher , . 396 x 1.140x . 095 22 710 - 04049 45 750 - 0258 HexHd . Screw , 5 / 16 - 18 x 5 / 8 Spacer , . 315x . 750 x 375 Lg ( A ) ( A ) For Model 6300 ( B ) For Model 634A and 634K ( C ) For Model 634K Only ( D ) For Model 634A Only 31
TROY - BILT TILLER LIFETIME LIMITED WARRANTY WHAT PRODUCT All Troy - Bilt branded rear tine walk - behind tillers with gear drive transmissions . IS COVERED This warranty begins on the date of purchase and is warranted by Troy - Bilt LLC for the life of the tiller , to the original purchaser only . WHAT IS COVERED Troy - Bilt LLC will , at its option , repair or replace any part found to be defective in material or BY THIS WARRANTY workmanship without charge for parts and labor This limited lifetime warranty also applies to non - powered attachments and accessories . Powered attachments and accessories are warranted separately by their manufacturers . Refer to the applicable manufacturer's warranty on these items for terms and conditions . WHAT IS NOT This warranty does not apply to parts that have been damaged by accident , alteration , misuse , COVERED BY THIS abuse , neglect , improper maintenance , vandalism , theft , fire , water , or damage because of peril WARRANTY or other natural disaster . The following items are not covered after the first year of this residential use limited warranty : belts , batteries , bushings , seals , tines , tires , wheels , paint , appearance items , and similar items that are normally replaced through periodic maintenance . Charges for pick - up , delivery , and service calls are not covered by this warranty . Service completed by someone other than an authorized service dealer is not covered by this warranty . Parts that are not genuine Troy - Bilt LLC service parts are not covered by this warranty . The engine is warranted separately by the engine manufacturer . Refer to the engine manufacturer's warranty for terms and conditions . LIMITED If used for commercial , institutional , industrial , rental , or demonstrator purposes , the warranty COMMERCIAL on the tiller is limited in duration to 90 days from the date of purchase . USE WARRANTY This warranty does not apply to parts that have been damaged by accident , alteration , misuse , abuse , neglect , improper maintenance , vandalism , theft , fire , water , or damage because of peril or other natural disaster . HOW TO OBTAIN Warranty service is available , with proof of purchase , through your local authorized service SERVICE dealer . To locate a dealer in your area , consult your Yellow Pages , or contact Troy - Bilt LLC at P . O . Box 361131 , Cleveland , Ohio 44136 - 0019 , 1 - 800 - 520 - 5520 , or log on to our Web site at www . troybilt . com . The provisions set forth in this warranty provide the sole and exclusive remedy arising from the sale . Troy - Bilt LLC shall not be liable for any incidental or consequential damage or expense of any kind , including but not limited to cost of equipment rental , loss of profits , or costs of hiring services to perform tasks normally performed by the equipment . Any implied warranties , including any implied warranty of merchantability or fitness for a particular purpose , shall be limited in duration to the period of ownership by the original purchaser ( and a maximum of 90 days from the date of sale if the tiller is purchased for commercial or other non - residential use ) . Some states do not allow the exclusion or limitation of incidental or consequential damages , or limitations on how long an implied warranty lasts , so the above exclusions or limitations may not apply to you . This limited warranty gives you specific legal rights , and you may also have other rights which vary from state to state . For customer assistance , contact your nearest authorized dealer , or contact us at : TROY - BILT LLC , P . O . Box 361131 , Cleveland , Ohio 44136 - 0019 , 1 - 800 - 520 - 5520