Troy-Bilt TUFFY 1634A, TUFFY 630C, Super Bronco 634A Operator's Manual

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Operator's Manual

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Rear-tine Tiller Models

630C--Tuffy 634AmSuper BroncoTM

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

PRINTEDINU.S.A. FORMNO. 770-10594E

9/9/04

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:

OTRDV-BILT T,OV-BmLTLLC

www.troybilt.com CLEVELAND,OH44136

,. 1-800-520-552_

P. O. BOX 361131

330-558-7220

Copy the serial number here:

CUSTOMERSUPPORT

PleasedoNOTreh/m thel/nit totheretailer 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.

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/;/ ,> ;'V }/ )

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,,, >,, rL;," ¢j ,_ <# ft, *x J ,7;; _

'_,-., _tf';_'ivc ,l

,v yO, ,_;7f'_;:'

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 sponsoredbythe Outdoor Power Equipment Institute, Inc., and is published by the American National

Standards Institute.

WARNING

The engine exhaustfromthisproductcontains chemicals known to the State of California to

cause cancer, birth defects or other reproduc-

SafetyAlertSymbol

ForwardClutchBail

ReverseClutchControl

(Models634A)

DepthRegulator

TineHoodFlap

,_ This is a safety alert symbol. It is used

and anyother literature you may receive. Bethoroughly familiar with the controls andthe proper useof the tiller and its en- gine. Knowhowto stopthe unit and disen- gagethe controls quickly.

2. Neverallow childrento operatethe tiller. Neverallow adults to operatethe tiller without proper instruction.

3. Keepthe areaof operationclear of all persons, particularly children and pets.

4. Keepin mindthattheoperatoror useris responsible for accidents or hazardsoc- curring to otherpeople,their property,and

themselves.

in this manual and on the unit to alert you to potential hazards. When you see

this symbol, read and obey the message that follows it. Failure to obey

safety messages could result in personal injury or property damage.

3. Donot operatethetiller without wearing

1. Carefully readthis Own-

Training

er's Manual,the separate Engine Owner'sManual,

adequateouter garments.Avoid loosegar- ments or jewelry that could get caught in moving parts.

4. Do not operatethe tiller when barefoot or wearingsandals, sneakers,or light foot- wear.Wear protective footwear that will improve footing on slippery surfaces.

5. Do nottill nearundergroundelectric ca- bles,telephone lines, pipes or hoses.If in doubt, contact your telephoneor utility

company.

6. Warning: Handlefuel with care; it is highly flammableandits vapors areexplo- sive.Takethe following precautions:

a. Storefuel in containers specifically

b. Thegascapshall neverberemovedor

Preparation

1. Thoroughly inspect the areawherethe

tiller is to be usedand removeallforeign

objects.

2. Be sure all tiller controls are released and bothwheels arein theWheelDrive po-

sition beforestarting the engine.

c. Keepmatches,cigarettes, cigars,

d. Fillfuel tank outdoors with extreme

Standard-Rotating-Tines

(SRT)

DrivePin

Figure 1-1: Tiller featuresand contre/s. SeeseparateEngine Owner'sManua/ to identifyenginecontre/s.

e. Replaceall fueltank and container

caps securely.

f. If fuel isspilled, do not attempt to

start the engine,but move the ma- chineawayfrom the areaof spillage and avoidcreating any source of ig- nition until fuel vapors havedissi- pated.

7. Nevermakeadjustments whenengineis running (unless recommendedby manu-

facturer).

Operation

1. Do not put hands or feet nearor under rotating parts.

designedfor this purpose.

fueladdedwhiletheengineis running. Allowthe engineto coolforseveral minutesbeforeaddingfuel.

pipes, openflamesandsparks away from thefueltank andfuelcontainer.

care.Neverfill fuel tank indoors. Use a funnelor spout to preventspillage.

2. Exerciseextremecautionwhen on or

crossing gravel drives,walks, or roads. Stayalert for hiddenhazardsor traffic. Do

not carry passengers.

3. After striking a foreign object, stop the

engine,removethe wire from the spark plug wire and prevent it from touching the spark plug. Thoroughly inspectthe ma- chine for any damageand repairthe dam- agebefore restarting and operatingthe

machine.

4.Exercisecautiontoavoidslippingorfall- ing.

5.Iftheunitshouldstarttovibrateabnor- mally,stoptheengine,disconnectthe

sparkplugwireandpreventitfromtouch- ingthesparkplug,andcheckimmediately forthecause.Vibrationisgenerallya warningoftrouble.

6. Stopthe engine, disconnectthe spark plug wire and prevent it from touching the

spark plug,wheneveryou leavethe operat- ing position, before unclogging thetines,

or whenmakingany repairs, adjustments or inspections.

7. Takeall possible precautionswhen leav- ing the machine unattended.Stopthe en-

gine. Disconnectthespark plug wire and move it awayfrom thespark plug. Besure

that both wheelsarein the WheelDrive po-

sition.

8. Before cleaning,repairing,or inspect- ing, stop the engine and make certain all

moving parts havestopped. Disconnect

the spark plug wire and prevent it from touching thespark plug to preventacci-

dentalstarting.

9. Theflapon thefine hood must bedown when operatingthetiller.

10. Neverusethetiller unless proper guards, plates,or other safety protective devicesare in place.

11. Do not run the engine in an enclosed area.Engineexhaust containscarbon

monoxide gas,adeadlypoison that is odorless, colorless, and tasteless.

12. Keepchildren and pets away.

13. Never operate the tiller underengine

powerif thewheels areinthe Freewheel position.In the Freewheelposition, the

wheelswill not hold the tiller back andthe revolvingtines could propel thetiller rapid-

ly,possibly causingloss of control. Always engagethe wheels with the wheel drive pins in theWheel Drive position before starting the engineorengagingthe

tines4Nheelswith the Forward Clutch Bail

(all models) or the ReverseClutchcontrol (Models 634A only).

14. Be awarethat the tiller may unex-

pectedlybounceupwardorjumpforward if the tinesshouldstrike extremelyhard packedsoil, frozen ground,or buriedob- stacleslike large stones,roots,or stumps.

If indoubtaboutthetilling conditions, al-

ways usethe following operating precau-

tionsto assistyouin maintainingcontrol of the tiller:

a. Walk behindandto one side of the

tiller, usingone handonthehandle barsRelax yourarm, but use a

securehandgrip.

b. Useshallowerdepthregulator

settings,working graduallydeeper

with eachpass.

¢. Useslowerenginespeeds.

d. Clearthetilling area of all large

stones,rootsor other debris.

e. Avoidusingdownwardpressureon

thehandlebars. If needbe, use slight upwardpressuretokeep the

tinesfrom diggingtoodeeply.

f. Beforecontacting hardpackedsoil

at the endof a row, reduceengine speedand lift thehandlebarsto

raise thetines out of the soil.

g. In anemergency,stopthetinesand

wheels byreleasingwhichever clutch controlis engaged.Do not

attemptto restrainthetiller.

15. Do not overloadthe tiller's capacityby attempting to till too deeply at too fast a

rate.

16. Neveroperatethetiller at high trans- port speeds on hard or slippery surfaces.

Look behind and usecare when backing up.

17. Donot operatethetiller on aslopethat is too steepfor safety.When onslopes,

slow down and makesure you havegood footing. Neverpermit thetillerto freewheel

down slopes.

18. Neverallowbystandersnearthe unit.

19. Onlyuseattachmentsand accessories

that are approved bythe manufacturerof the tiller.

20. Usetiller attachmentsand accessories when recommended.

21. Neveroperatethetiller without good visibility or light.

22. Neveroperatethe tiller ifyou aretired; or underthe influence ofalcohol, drugs or

medication.

23. Operatorsshall nottamper with theen- gine-governor settings onthe machine;

the governor controls the maximum safe

operatingspeed to protect the engine and all moving parts from damagecaused by

overspeed.Authorized serviceshall be sought if a problem exists.

24. Do nottouch engine parts which may behot from operation.Let partscool down

sufficiently.

25. Pleaseremember:Youcan alwaysstop

thetines andwheelsby releasingthe For- ward ClutchBailoron Model634Athe Re-

verseClutchcontrol, (whichevercontrol is engaged),or bymovingthe ignition switch and/orthrottle control lever on the engine

to "OFF" or"STOP".

26. To loador unloadthe tiller, seethe in-

structions in Section4 of this Manual.

27. Useextremecaution when reversing

or pulling the machinetowards you.

28. Starttheenginecarefully accordingto

instructions and with feet well away from thetines.

29. Neverpick up or carry a machinewhile

the engineis running.

MaintenanceandStorage

1. Keepthe tiller, attachmentsand acces-

sories in safeworking condition.

2. Checkall nuts, bolts, and screws for

proper tightnessto besurethe equipment is in safeworking condition.

3. Neverstore thetiller with fuel in thefuel

tank insidea building whereignition sourc- esare presentsuchas hot waterandspace

heaters,furnaces, clothes dryers, stoves, electric motors, etc.). Allow the engineto cool beforestoring the unit in anyenclo-

sure.

4. To reducethe chancesof a fire hazard,

keepthe enginefreeof grass, leaves,or ex- cessivegrease.

5. Store gasolinein acool, well-ventilated

area,safely awayfrom any spark- or flame-producing equipment. Store gaso- line in anapprovedcontainer,safelyaway

from the reachof children.

6. Refertothe Maintenancesectionsof

this Manualandthe separateEngineOwn- er'sManualfor instructions ifthe unitis to

bestored for an extendedperiod.

7. Neverperform maintenancewhilethe

engineis running orthe spark plug wire is connected,exceptwhen specifically in- structed to do so.

8. Ifthefueltank hasto be drained,dothis

outdoors.

Decals

Foryour safety and the safety of others, vari- ous safety and operationaldecalsarelocated on your unit (seeFigure 1-2).

Keepthe decalsclean and legibleatall times. Contactyour localservicedealeror thefactory

for replacementsif anydecalsaredamagedor missing.

Referto the PartsListpagesin this Manualfor decallocations, descriptionsandpart num-

bers.

ForwardClutchBail

StartingStabilization

Message(on engine)

Figure 1-2: Locationofsafety and operatingdeca/s.

ReverseClutch Control

OperatingInstruction

(Models 634A)

WarningMessages

HotSurfacesWarning

OperatingSymbols

Varioussymbols(shownhere,withworddescriptions) mayheusedonte'dllerandengine.

NOTE:Yourunitmaynothaveallof_esymbds.

FAST SLOW STOP

* READTHEOWNER'SMANUAL. * KNOWLOCATIONSAND FUNCTIONSOFALLCONTROLS. * KEEPALLSAFETYDEVICESANDSHIELDSIN PLACEAND WORKING. ° NEVERALLOWCHILDRENORUNINSTRUCTEDADULTSTO OPERATETILLER. ° SHUTOFFENGINEANDDISCONNECTSPARKPLUGWIREBEFOREMANUALLYUN-

CLOGGINGTINESORMAKINGREPAIRS. ° KEEPBYSTANDERSAWAYFROMMACHINE. ° KEEPAWAYFROM ROTATINGPARTS. ° USEEXTREMECAUTIONWHENREVERSINGOR PULLINGTHEMACHINETOWARDS

YOU.

I"1 I*1 R

CHOKE CHOKE REVERSE

ON OFF ROTATINGTINES

TILLERDIRECTION LEVERDIRECTION

TO AVOID SERIOUS INJURY:

BAIL

ENGAGED

BAIL

DISENGAGED

SECTION2: ASSEMBLY

WARNING: Toprevent

personalinjury or property damage,do notstart the engine

until all assemblysteps are completeandyou haveread

and understandthesafety and operatinginstructions in this manual.

INTRODUCTION

Carefullyfollow theseassemblysteps to correctly prepareyour tiller for use. It is recommendedthatyou readthis Sectionin its entirety beforebeginning assembly.

NOTE: Various rifler models are

presented in this Manual. Use only the information appropriate for your tiller model. Engine styles vary by model, Your engine may appear differently than those

illustrated in this manual

INSPECTUNIT

Inspect the unitandcarton for damageim- mediatelyafter delivery.Contactthe carrier

(trucking company) if you find or suspect damage. Inform them of the damageand

request instructions for filing a claim. To protect your rights, put your claim in writ-

ing andmaila copyto the carrierwithin 15 days afterthe unit has beendelivered.

ContactTroy-Bilt LLCif you needassis-

tance in this matter.

TOOLS/ MATERIALSNEEDED

(2) 1/2" open-end wrench* (2) 9/16" open-endwrench* (1) 3/8" open-endwrench*

(1) Largeadjustable wrench

(Models 634F/634Aonly) (1) Scissors (totrim plasticties) (1) Ruler (for belttension check) (1) Block of wood (to support tiller when

removing wheels) (1) Tirepressuregauge (for models with

pneumatictires) (1) Cleanoil funnel (1) Motor oil. Refertothe EngineOwner's

Manualfor oil specificationsand

quantityrequired.

* Adjustable wrenchesmay be used.

ASSEMBLYSTEPS

STEP 1: UNPACKING INSTRUCTIONS

NOTE:While unpacking,do not severely bend anycontrol cables.

1.The tiller weighs approximately 133 Ibs. Do notattemptto remove it from the ship-

ping platform until instructed to do so in

these Assemblysteps.

2. Removeany packagingmaterial from

the carton. Removeany staplesfrom the

bottom of the carton and removethe car-

ton from the shipping platform.

3. Removeall unassembledpartsandthe separatehardwarebagfrom the carton.

Checkthat you havethe items listed in the LooseParts List (contactyour local dealer or the factory items aremissing or dam- aged).

NOTE: Use the screw length template

(Fig,2-1) to identify screws,

LoosePartsList

Qty. Description 1 HandlebarSupport (seeA, Fig. 2-2)

1 HandlebarAssembly(seeK,Fig.2-2)

Hardwarebag contents:

4 Hexhd. screw,5/16-18 x 1-1/2" 2 Hexhd. screw,3/8-16 x 3/4" 2 FlatWasher,3/8"

4 Split lockwasher,5/16" 4 Hex nut, 5/16"-18

2 HexIocknut, 34}"-16

*Model 634A only

IMPORTANT:Motor oil must beaddedto

the enginecrankcasebefore theengine is

started. Followthe instructions inthis Sectionand in the separateEngine

Owner's Manual.

NOTE: LEFTand RIGHTsidesof thetiller are as viewedfrom the operator's position

behind thehandlebars.

STEP 2: ATTACHHANDLEBAR

1. Looselyattachthe legsof thehandlebar support (A, Fig. 2-2) to the inner sides of

the tiller frameusingtwo 3/8"-16x3/4" hex

hd. screws (B), 3/8" flat washers(C), and 3/8"-16 hex Iocknuts (D).

_iiii

Figure2-1: Toidentifylengthofscrews,place

screwontemplateasshownandmeasuredis-

tancebetweenbottomofscrewheadandtipof

screw.

2. Usingtwo5/16"-18 x 1-1/2"screws(G), 5/16" split lock washers (H) and 5/16"-18 hexnuts (I), loosely attachthe handlebar support (A) usingthe upperholes.Tighten

thetwo screws securely.

3. Therearethree height adjustmentholes in the two handlebar support brackets (E

and F,Fig.2-2). Usea setting that will po- sition the handlebarsat approximately waist levelwhenthe tines are3"-4"intothe

soil. Looselyattachthe support bracketsto theoutsideofthe handlebarassembly(K)

usingtwo 5/16"-18x 1-1/2" screws (G),5/

16"split lockwashers(H)and5/16"-18 hex nuts (I). NOTE:Ifa support bracketwill not move, loosenattaching screw (J) and nut.

IMPORTANT:The support bracketsmust

beassembledto theoutsideof the handlebarassembly.

4. Tightenall handlebarmounting hard- waresecurely.

STEP 3: MOVE TILLER OFF CRATE Toroll the tiller off the shipping platform,

put the wheelsinfreewheel,asfollows:

1. Placeasturdy block underthetransmis- sion to raiseonewheel about 1" off the

ground. 2, Removethe hairpin cotter (L, Fig.2-3)

and wheeldrive pin (M) from the wheel hub (0) and wheelshaft (N).

3. Slidethe wheelfully inward onthewheel shaft (N, Fig.2-3). Reinstallthe wheel

°-! °

Fig. 2-3: Wheel in FREEWHEELposition

Fig. 2.2: Attachhandlebar.

drive pin (M) through thewheelshaft only (not through the wheel hub). Securethe

wheeldrive pin with the hairpin cotter (L), pushingthe hairpincotter in as faras it will

go. Thewheelshould now spin freely (freewheel) onthe wheelshaft. Repeat

with the other wheel.

4. Usethehandlebarto roll the tiller to a flat area.

STEP 4: INSTALL FORWARD CLUTCH CABLE

1. Carefully unwrapthe forward clutch ca-

ble(cablewithout an attachedknob) from its shipping position and slide the thin ca-

blewire (T,Fig. 2-4) into the slot in the ca-

blebracket. Pushthe cableconnector (U, Fig.2-4) upthrough the holein thebracket

untilthe groove in the connector snaps into place.

2. Threadthe#10-24 hex nut (Z, Fig. 2-5) halfway ontothe screw (V) which runs through the spring (W, Fig.2-5).

3. Threadthe screw (V) into the cablead- juster (X).

IMPORTANT: Beforestartingthe engine,

the wheels must beplacedin theWHEEL

DRIVEposition (pins through wheel hubs andwheelshaft). This procedureis

describedin WheelDrivePinsin Section3.

Fig. 2-4: Installingforward clutchcable bracketand cable.

4. Checkfor correcttensionontheforward drive belt bytaking two measurements of

the cablespring, as follows:

a.With the Forward Clutch Bail (Y,Fig. 2-

6) inanopen(released)position, measure

the length ofthe cablespring (W) from the

outermost coil to the outermost coil. b. Squeezethe ForwardClutch Bailagainst

the handlebar(see Fig. 2-7) andre-mea-

surethe spring length. Thebelt tension is correct if this second measurementis be-

tween 1/16"to 3/16" longer thanthe first

measurement.If so,turn the hex nut (Z, Fig. 2-7)tightly against the cable adjuster (X) while preventingthe cableadjuster

from turning. c. If the spring lengthis incorrect, you

must adjustthe cabletension asdescribed in Checkingand Adjusting Forward Drive

Belt Tensionin Section 5. Incorrect cable

tension can result in belt slippage (cable tension too loose), or unintentional tine

movement whenthe clutch bail is in Neu-

tral (cabletension too tight).

iiiiiiiiiiiiiiii

Fig. 2-7: Tocheckforwardbelttension,take twomeasurementsofthelengthof the coilsinthe spring-- first withthebail open, then withthe bail held against thehandlebar.

STEP 5: INSTALL REVERSECLUTCH CABLE (MODEL 634A ONLY)

1. Unwrapthe reverseclutch cable (CC,

Fig.2-8 and Fig.2-9) from its shipping po- sition and route it up to the handlebar. Be

surethat the cableis routedbeneaththe Forward Clutch Bail.

2. Insertthecable(CC,Fig.2-8)through the slot inthecablebracketandpositiontheflat sideof thethreadedassemblynextto the flat side ofthe hole.Slidethe hexnut (DD) up thecable andtighten it securely.

Flat Side

3. Fastenthe reverseclutch cableto the left sidehandlebarwith acabletie (EE,Fig.

2-9).

4. Testthefunction ofthe reverseclutch by

Fig. 2-8:/nsta//reverse cablebracketand reverseclutchcable.

pulling out and releasingthe cableknob. Theknob should return to its neutral posi-

tion (resting againstbracket).Ifit doesn't,

contact your local dealeror Troy-Bilt LLC for technical assistance.

Fig.2-5: Cable springand adjuster.

Fig. 2-6: Attachforward clutchcable springto

forwardclutch bail.

Fig. 2-9: Route reverseclutchcable (CC)as

shown.Attach withcable tie (EE).

5! 6: CHECKTRAHSMiSSiOH OILLEVEL

Thetransmission was filledwith gearoil at thefactory. However,you shouldcheckthe gear oillevelatthis time to makecertain it

is correct. IMPORTANT:Donot operatethe tiller ifthe

gear oillevel islow. Doingso will result in severedamageto the transmission com- ponents.

1. With the tiller on level ground, pull the Depth RegulatorLever(FF,Fig. 2-10) back

andthen all the way up until the lowest notch in the lever is engaged.

2. Removethe oil fill plug (GG,Fig. 2-11) from the transmission housing cover and

locatethe maindrive shaft situated inside the housing.

3. Thegear oilleveliscorrect ifthegear oil isapproximately halfway upthe sideofthe

main driveshaft.

4. Ifthe oil levelislow, addgearoilby re- ferring to A. ToCheckthe Transmission

dear 0il Levelin Section5.

I El-'/: AUU IVlUI UH UIL

Thetiller is shipped withoutoil in the en- gine.

IMPORTANT:Donot start the engine with- out first adding motor oil. Severeengine

damagewill result ifthe engineis run with- out oil.

1. Refertothe separateEngineOwner's Manualfor engine oil specifications and

capacities.

2. With thetiller on levelground, movethe Depth RegulatorLever(FF,Fig.2-1O)up or

down until the engine is level.

3. Addmotor oil as describedin the En- gine Owner's Manual.

4. Movethe DepthRegulator Leverall the way down untilthe highest notch is en- gaged.This placesthe tines in the"travel" position, which allows the tiller to be moved without thetines touching the ground.

_1 El-'8: I.;HEI.;K HAHUWAHE Checkall nuts and screws for tightness. STEP g: CHECKAIR PRESSURE IN

TIRES (unitswithpneumatictires)

Checkthe air pressurewith a tire gauge.

Deflateor inflatethetires equally to be- tween 15 PSIand 20 PSI (pounds per squareinch). Besurethat both tires arein- flated equallyor the unit will pull to one

side.

Fig. 2-10: AdjustDepth RegulatorLever.

Fig. 2-11: Removegear oil fill plug.

IMPORTANT: This completesthe assemblysteps. Be- fore operatingyour tiller, makesureyou readthefollow- ing sections inthis Manual,as well asthe separateEngineOwner'sManual:

• Section1: Safety

• Section3: Featuresand Controls

• Section4: Operation

SECTION3: FEATURESANDCONTROLS

_ ARNING: Before

operatingyour machine, carefully readand understand

all safety,controls and operatinginstructions in this

Manual,the separateEngine Owner's Manual,and on the decalson the machine.

Failureto follow these instructions can resultin

serious personalinjury.

INTRODUCTION

This Sectiondescribesthe locationand

function ofthecontrols on your tiller.Refer to the following Section, Operationfor de- tailed operating instructions.

Practice usingthesecontrols, with the en-

gine shut off, until you understandthe op-

eration ofthe controls and feel confident

with eachofthem.

ENGINE CONTROLS

Referto the enginemanufacturer's Engine

Owner'sManual(included in the tiller liter-

aturepackage)to identify the controls on your engine.

IMPORTANT:Thecontrol for stopping the

engine is located onthe engine.

WHEEL DRIVE PINS

Eachwheel is equippedwith a wheeldrive

pin (A, Figures3-2 and 3-3) that secures the wheelto the wheel shaft (B). The

wheelscan be positioned in either a

WHEELDRIVEor a FREEWHEELmode.

_ WARNING: Neverallow

either ofthewheelsto bein the FREEWHEELposition whenthe

engineis running. Alwaysput both wheelsin theWHEEL

DRIVEposition beforestarting

the engine.

Failureto comply could cause loss of tiller control, property damage,or personalinjury.

Beforestarting the engine,put bothwheels

in the WHEELDRIVEposition byinserting the wheel drive pins through the wheel

hubsandthewheelshaft.Doingso "locks" the wheels to the wheelshaft,causing the

wheelsto turn when either the

ForwardClutch

Figure3-1: Tiller features and controls.See separateEngineOwner's Manual to identify enginecontrols.

Bail ReverseClutchControl

(Model 634A)

gulator

HandlebarHeight Adjustment

Wheel Drive Pin

(oneachwheel)

Forward ClutchBail (all models) or the Re- verse ClutchControl (Model 634A) is en-

gaged. Usethe FREEWHEELmode only whenthe

engineis not running, in FREEWHEEL,the wheeldrive pins are placedonly through

the holes inthewheelshaft (notthe wheel

hubs), thus allowing the wheels to turn freely whenyou manually movethe tiller.

ToplacethewheelsinWHEELDRIVEor FREEWHEEL:

1. Stop engine,disconnectsparkplug wire

Figure3-2: WHEELDRIVEposition.

from sparkplug andallowengineto cool.

wheelhub (D, Figure3-2) and wheel

_ WARNING: Donotplace

tiller on its side whenchanging

wheeldrive positions. Doingso could result in gasolineleaking from the fuel tank.

Failureto follow this instruction could result in personalinjury

or property damage.

2. Raiseonewheel about one inch off the ground and placeasturdy support under

the transmission.

shaft (B). Insertwheel drive pin (A) through wheel hub (D)and wheel shaft (B). Securewheeldrive pin with hair- pin cotter (C) by pushing hairpin cotter in asfar as it will go. Repeatwith the other wheeland then removethe support from

beneaththe transmission.

5. FORFREEWHEELMODE(Figure3-3): Slidethewheelinwardandinsertthe wheel

drive pin (A, Figure3-3) onlythrough the hole inthe wheel shaft (B). Securewheel

3. Removehairpin cotter (C,Figures3-2 and 3-3) from wheel drive pin (A).

4. FORWHEELDRIVEMODE(Figure3-2): Slide wheeloutward and align holes in

drivepin with hairpincotter (C)by pushing hairpin cotter in asfar asit will go. Repeat

for the other wheelandthen removethe support from beneaththetransmission.

_-- _ caution whenreversing or

,,_- D you. Look behindto avoid

Figure3-3:FREEWHEELposition.

engine,besurethat both the ground, look behind you to avoid any

WARNING: Beforestarting 3. Lift the handlebar untilthe tines clear

wheelsare inWHEELDRIVE obstacles,andthenpullthe control knob position. SeeWheelsDrivePins (F,Figure3-4) out. Thewheels and tines

for instructions, will rotate in a reversedirection. Engagingthe Forward Clutch 4. Releasethe control knobto disengage

Bail orReverseClutchControl (stop)the wheels andtines (the enginewill (if equipped) whenthewheels continue to run).

arenot in WHEELDRIVEcould allowthe tinesto rapidly propel

the tiller forward or backward.

Failureto comply could cause loss of tiller control, property damage,or personalinjury.

FORWARDCLUTCHBAIL

TheForward Clutch Bail(E, Figure3-4)

controls the engagementof forward drive F to the wheelsand tines. E

Tooperate the ForwardClutchBail:

1. Put wheelsin WHEELDRIVEposition Figure3-4:AIImodelshavea ForwardClutch

(see"WARNING"statementabove). Bail(E).OnlyMode1634Ahavea Reverse

2. Lift and hold the clutch bail (E,Figure 3-

4)againstthehandlebartostartthewheels DEPTH REGULATOR LEVER

andtines rotating in a forward direction.

3. Releasethe clutch bail to disengage ing depth of the tines. Pullthe leverback

(stop) thewheels andtines (theenginewill and slide it up or downto engagethe

continue to run). notched height settings.

REVERSECLUTCHCONTROL The"travel position" (highestnotch) raises

(Model 634A only) the tines approximately1-1/2"offthe

TheReverseClutchControl(F,Figure3-4) without the tines contacting the ground.

controls the engagementof reversedrive Thissetting should also beusedwhen to the wheelsandtines.The reversingfea- starting the engine.

ture isusedfor maneuveringthe tiller

only-- neverengagethetinesin the Moving the leverupward will increasethe

ground while operatingin reverse.

_ WARNING: Useextreme

pulling the machinetowards obstacles.

Neverattemptto till in reverse. Failureto follow this warning

could result in personalinjury or property damage.

Tooperatethe ReverseClutchControl:

1. Put wheelsin WHEELDRIVEposition (see"WARNING"statementat the left).

2. Stop all tiller motion by releasingthe Forward Clutch Bail.

ClutchControl(F).

This lever (G,Figure3-5) controls the till-

ground, allowingthe tiller to be moved

tilling depth.Thelowest notchallowsatill-

ing depthof approximately6", depending on soil conditions. Forbestresults,always

begintilling at avery shallowdepthsetting

and gradually increasethe tilling depth.

to till too deeplytoo quickly.

WARNING: Donotattempt

Graduallywork down to deeper

tilling depths.

Placethe DepthRegulator Leverin the "travel" position

beforestarting theengine.This position preventsthetines from

touching the ground until you

are readyto begintilling. Failureto follow this warning

could result in personalinjury or property damage.

TravelPosition

Figure3-5: Depth Regulator Lever (G).

HANDLEBARHEIGHT ADJUSTMENT

Thehandlebarheight isadjustableto three different settings (Figure3-6). In general, adjust the handlebarssothey areat waist

levelwhen the tines are3"-4" in the soil.

Toadjustthe handlebars:

1. Stopengine,disconnectspark plugwire from spark plug and allow engineto cool.

2. Removehardware,reposition handle- bars,and reinstall hardwaresecurely.

High

Medium

Figure3-6: Handlebarheightadjustment.

SECTION4: OPERATION

_ ARNING: Before

operatingyour machine, carefully readand understand all safety(Section1),controls (Section 3)andoperating instructions (Section4) inthis

Manual,the separateEngine Owner's Manual,and on the

decalson the machine. Failureto follow these instructions can resultin

serious personalinjury.

INTRODUCTION

Readthis OperationSection andthe sepa- rate EngineOwner'sManualbeforeyou start the engine.Then,take the time to fa- miliarize yourself with the basic operation of thetiller before usingit in the garden. Findan open,levelareaand practice using

the tiller controls without the tines engag-

ing the soil (put tines in "travel" setting). Onlyafter you've becomecompletely fa-

miliar with thetiller shouldyou beginusing it in the garden.

BREAK-INOPERATION

Perform the following maintenance after

the first two (2) hours of new operation

(see MaintenanceSection inthis manual and inthe Engine Owner'sManual).

1. Changeengine oil.

2. Checkfor looseor missing hardwareon unit. Tighten or replaceas needed.

3. Checktension on forward drive belt.

4. Checktransmission gear oil level.

STARTING AND STOPPING

Pre-StartChecklist

With the spark plug wire disconnected from the sparkplug, performthe following

checksand services beforeeach use:

1. Readthe Safetyand Controls Sections in this manual. Readthe separateEngine

Owner's Manualprovidedwith the unit.

2. Putthe wheels inthe WHEELDRIVEpo- sition (wheel pins must be through holes in wheelhubsandwheelshaft).

3. Checkunit for loose or missing hard- ware. Serviceas required.

4. Checkengineoil level.SeeEngineOwn- er's Manual.

ReverseClutchControl

(Model634A)

ClutchBail

,epthRegulator

DrivePin

Fig. 4-1

5. Checkthat all safety guards andcovers are inplace.

6. Checkair cleanerandenginecooling system. SeeEngineOwner's Manual.

,_ WARNING: GASOLINEIS

7. Fillthefueltankwithgasolineaccording

to the directions inthe separateEngine

Owner's Manual.Follow all instructions and safetyrules carefully.

8. Attach sparkplug wire to spark plug. Startingthe Engine

Thefollowing steps describe how to start and stopthe engine.

,_ WARNING: Donot attempt

HIGHLYFLAMMABLEAND ITS VAPORSAREEXPLOSIVE.

Followgasolinesafetyrules in

this Manual(seeSection 1)and

in theseparateEngineOwner's Manual.

Failureto follow gasolinesafety instructions can resultin

serious personalinjury and property damage.

to engagethe tines or wheels

until you havereadall of the operatinginstructions in this Section.Also, reviewthe safety rules in Section 1:Safety,and

the tiller andenginecontrols

information in Section3:

Featuresand Controls.

1. Completethe Pre-StartCheckliston this

page.

2. Putthe wheels inthe WHEELDRIVEpo-

sition (seeWheelDrivePinsin Section3 of this manual).

,_ WARNING: Tohelp

• Before starting engine, put both

wheels in the WHEELDRIVEposition. Never havewheels in FREEWHEELpo- sition when engine is running. When thewheels are in FREEWHEEL,theydo

not hold backthe tiller and the tines couldpropelthetiller rapidly

forwardor backward.

• Before starting engine, put Forward

Clutch Bail (all models) and Reverse Clutch Control (Model 634A only) in neutral (disengaged) positionsby re-

leasinglevers.

• Never run engine indoors or in en-

closed,poorlyventilatedareas. Engine exhaustcontainscarbonmonoxide,an

odorlessanddeadlygas.

• Avoidenginemufflerandnearbyareas.

Temperaturesin these areas may ex- ceed 150° F.

3. Movethe Depth RegulatorLeverall the

way down to the "travel" position, so that thetines clearthe ground.

4. Releaseall controls on the tiller.

5. Onengine'swith a fuel shut-off valve,

turn valve to openposition, as instructed in the separateEngine Owner'sManual.

6. Put ignition switch and/or throttle con-

trol lever locatedonengineinthe "ON", "RUN", "FAST"or "START"position, asin- structed in the EngineOwner's Manual.

7. Chokeor prime engine,as instructed in

EngineOwner's Manual.

8. Put one hand onfueltank to stabilize unitwhen pulling starterrope handle.Then

userecoil starter to start engine, as in-

structed in the EngineOwner's Manual. Whenenginestarts, graduallymovechoke lever (if so equipped) to "NO CHOKE", "CHOKEOFF"or "RUN" position.

9. Usethe"FAST"throttle speedsetting

whentilling.

preventserious personalinjury or damageto equipment:

Stopping the EngineandTiller

1. Tostop thewheelsandtines, releasethe Forward ClutchBail (all models) orthe Re-

verse ClutchControl (Model 634A) -- whichevercontrol is in use.

2. Tostop the engine, put the ignition switch and/or thethrottle control lever in

the "OFF"or "STOP"position.

OPERATINGTHE TILLER

Thefollowing operatinginstructions pro- videguidelines to usingyour tiller effec-

tively and safely. Besure to read Tilling

Tips & Techniquesinthis Section before

actually putting the tines into the soil. NOTE:Thisis a traditional "Standard-Ro-

tating-Tine" (SRT)tiller with forward rotat-

ing tines,it operatescompletely differently from "Counter-Rotating-Tine"(CRT)tillers

or from front-tine tillers.

1. Followthe Pre-Start Checklistatthe be- ginning of this Section. Besurethat the

wheelsare in theWHEELDRIVEposition.

2. Movethe DepthRegulator Leverall the way down,so that thetines clearthe

ground. Usethis position when practicing

with thetiller 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.

Thenput throttle in "FAST"setting.

4. For forwardmotion ofthe wheelsand

tines:

(a) Pull ForwardClutch Bail (Fig.4-1) up against handlebar.Releasebail to stop for-

ward motion of wheels andtines. (b) Whentilling, relaxand let the wheels

pull the unit while thetines dig.Walk be- hind anda littleto onesideof the unit. Use

one hand,yet keepa light--but secure-- grip on the handlebar (while keepingyour

arm loose). SeeFig.4-2. Letthe unit move at its own paceand do not push down on

the handlebarsto try and forcethe tinesto

dig deeper-- this takesweight off the wheels, reducestraction, andcausesthe

tines to try and propelthe tiller.

,_ WARNING: Donotpush

down onthe handlebarsto try

to makethetiller till more

deeply.This preventsthe wheelsfrom holding the tiller

backand canallow the tines to rapidly propelthe tiller forward,

which could resultin loss of control, property damage,or

personalinjury.

5. For reversemotion of the wheelsand

tines (Model634A only):

(a) Lookbehindand exercisecaution when operating in reverse.Do not till while in

reverse. (b) Stopallforward motion. Lift handlebar

with onehanduntiltines areoff the ground andthen pull ReverseClutchControl knob out (seeFig.4-3). Tostop reversing, letgo

of ReverseClutch Control knob.

(b) Swingthehandlebarto theleftso the right wheeltakesa "step" backward.Next

swing the handlebarto the rightso theleft wheel"steps" backward.Repeatasneeded.

the two wheels in FREEWHEEL.

7. ToTurnthe Tiller Around: (a) Practiceturning the tiller in a level,

openarea.Beverycarefulto keepyour feet and legsaway from the tines.

(b) Tobeginaturn, lift thehandlebarsuntil

thetinesareoutofthe groundandtheengine

andtinesarebalancedoverthewheels(Fig. 4-4).

(c) With tiller balanced,pushsidewayson handlebarto steer in direction of turn (Fig. 4-5). After turning, slowly lower tines into

soil to resumetilling.

Fig. 4-4: Tobegin turn, lift handlebars until tines are out of groundand unit is balanced.

Fig.4-2:Useonehandtoguidetiller when movingforward.

Fig.4-3:Raisetinesoffgreundandlook

behindwhenmovinginreverse.

6. Tomovethe Model630Cin reversefor short distances:

(a) Releaseforward Clutch Bail.Thenlift handlebaruntiltinesare off theground.

Fig.4-5: Withtinesout ofground,pushhan- dlebarssidewaysto turntiller.

StoppingtheTillerandEngine

1. Tostop thewheelsandtines, releasethe Forward ClutchBail (all models) orthe Re-

verse ClutchControl (Model 634A) -- whichevercontrol is in use.

2. Tostop the engine, put the ignition switch and/orthe throttle control leverin

the "OFF"or "STOP"position.

TILLINGTIPS&TECHNIQUES

Tilling Depths

WAHNINL_: Before

tilling, contact your telephoneor utilities

companyand inquire if

undergroundequipment or

lines are usedonyour property. Do nottill near

buriedelectric cables,

telephonelines, pipes or hoses.

• Whencultivating(breakingup surfacesoil aroundplantsto destroyweeds,seeFig.4-9), adjustthetinesto dig only1"to 2"deep.Using

shallowtilling depthshelpspreventinjury to plantswhoserootsoftengrowclosetothesurface,ifneeded,lift up onthehandlebarsslightly

to preventthetinesfrom diggingtoo deeply.(Cultivatingon aregularbasisnotonly eliminatesweeds,it alsoloosensandaeratesthe soil for bettermoistureabsorptionandfaster plantgrowth.)

• Avoidpushing downon thehandlebarsinan attemptto forcethe tiller to dig deeper.Doing sotakestheweightoff thepoweredwheels,causingthemto losetraction.Withoutthewheels

helpingto holdthe tiller back,thetineswill attemptto propelthe tiller- oftencausingthetiller

to skip rapidlyacrosstheground. (Sometimes,slightdownwardpressureonthe handlebars will helpgetthroughaparticularlytoughsectionof sodor unbrokenground,butinmostcases

this won't benecessary.)

•Avoidtrying todigtoo deeplytoo quickly,especiallywhenbustingsod orwhentilling soilthat hasn'tbeentilledfor sometime.Useshallowdepth regulatorsettings(only aninchor two

deep)for thefirst passesthroughthesoil.Witheachsucceedingpass,diganotherinchortwo deeper.(Wateringtheareaafew daysprior to tilling will maketilling easier,aswill letting the newlyworkedsoil setfor a dayor two beforemakinga final,deeptilling pass.)

ChoosingCorrectWheel& TineSpeeds With experience,you will find the "just right" tilling depth andtilling speedcombination

that is bestfor yourgarden.

Setthe enginethrottleleverataspeedto givetheengineadequatepowerandyetallowit tooperateattheslowestpossiblespeed...atleast until youhaveachievedthe maximumtilling depth youdesire.Fasterenginespeedsmaybe desirablewhenmakingfinal passesthrough

theseedbedor whencultivating.Selectionofthecorrectenginespeed,in relationto thetilling depth,will ensurea sufficientpowerlevelto do thejobwithout causingtheengineto labor.

Letthe Tiller DotheWork

Whiletilling, relaxandletthe wheelspullthe tiller along while the tines do the digging.

Walkon theside that is notyetfinished(to avoidmakingfootprints in the freshlytilled

soil) and lightly,but securelygrip the han- dlebarwith just onehand.

AvoidMaking Footprints

Wheneverpossible, walk on the untilled

sideof theunit to avoidmakingfootprintsin

your freshly tilled or cultivated soil. Foot-

prints causesoil compactionthat canham- per root penetrationand contribute to soil

erosion. They can also "plant" unwanted

weed seeds back into the freshly tilled

ground.

Preparing Seedbeds

•Whenpreparingaseedbed,go overthesamepathtwice inthefirst row,thenover- lapone-halfthetiller width ontherest ofthe passes(seeFig.6).Whenfinishedin onedirection,makeasecondpassat a right angle,as shownin Fig.4-7. Overlap

eachpassfor bestresults(invery hardground,it maytakethreeorfour passesto

thoroughlypulverizethesoil.)

• if thegardensizewill not permitlengthwiseandthencrosswisetilling, thenover- lapthefirst passesbyone-halfatiller

width,followedby successivepasses ....................v .................................

at one-quarterwidth(seeFig.4-8). _ _

Fig. 4-8

AvoidTilling Soggy,Wet Soil

Tilling wet soil often resultsin large,hard

clumpsof soil that caninterferewith plant-

ing.if time permits,wait a dayor two after heavyrainsto allow the soil to dry before

tilling. Testsoil bysqueezingit intoa ball.if

itcompressestoo easily,it is toowet to till.

Fig. 4-6 Fig.4-7

Cultivating

With planning, you can ==.._Vp. ==_._V_ allow enoughroom _" _ (_

betweenrows to cultivate _ _ (seeFig.4-9). Leaveroom _ _

for the hood width,

plus enough extra _ _'_' roomfor future plant Fig.4-9

growth.

PowerComposting

TILLINGTIPS& TECHNIQUES(CON'T)

Powercompostingsimply meanstilling underandburying in thesoil all manneroforganic mattersuchas crop residues,leaves,grassclippingsand covercrops.Thismaterialwill de- composeduringthe non-growingseasonandadd importantnaturalnutrientstothe soil.

Thefirst placeto beginiswith crop residuessuchasleftovervines,stalks,stemsandroots. Powercompostthesecrop residuesassoonastheyfinish bearing.Thesoonerthis is done,

thebetter,astendergreenmatteris easiertotill under.Usethedeepestdepthregulatorset- ting possiblewithoutcausingthe engineto laboror thetiller tojumpahead.

Standingcornstalksofreasonableheightcanbepowercomposted.Pushingover(butnot uprooting)cornstalkswill oftenmakeiteasierto chopupthe stalks.Keepthetinesclearof

excessivetanglingby "fishtailing"or frequentlyusing reverse.Makeseveralpasses,thenre- turna fewdays laterto finish off anyremainingstubble.

Aftertilling undercropresidues,addmoreorganicmattersuchasleaves,grassclippingsand evenkitchenscraps.Whentilled intothesoil, this organicmatterwill decomposeandadd

evenmore importantnutrientsto thesoil. Afterpowercomposting,you maywant to planta "greenmanure"covercropto protectthe soilduringthe off-season.Yousimplygrowa

cropof clover,alfalfa,buckwheat,peas,beans,ryegrass,grain,or kaleandthentill it into thesoil priorto the plantingseason.

WAHNIN(3: Whenpower

composting, do not keepthe

DepthRegulator Leverat a deepsetting if the tiller jumps

or bucks. If jumping or bucking occurs,

movethe Depth Regulator Leverdown to ashallow

setting andthen slowly

increasethetilling depthon laterpasses. Failureto follow this warning

could result in personalinjury.

TillingOnSlopes

Readthe followingrecommendationsbeforetilling onslopes:

Ifyou must gardenonamoderateslope,pleasefollow two very importantguidelines:

1.Till onlyon moderateslopes,neveronsteepgroundwherefootingisdifficult (reviewsafe-

ty rulesin Section1: Safetyofthismanual).

2. We recommendtilling up and down slopes ratherthan terracing.Tillingvertically on a

slopeallows maximumplantingareaandalsoleavesroomfor cultivating. IMPORTANT:Whentilling onslopes,besurethe correctoil levelis maintainedinthe engine

(checkeveryone-half hour of operation).Theinclineof the slopewill causethe oil to slant awayfrom its normallevelandthis canstarveenginepartsof requiredlubrication.Keepthe

motor oil levelatthefull pointat all times!

WAHNING: Do not operatetiller on aslopetoo

steepfor safe operation.Till slowly and besureyou have

good footing. Neverpermit tiller to freewheeldown

slopes.Failureto follow this warning could resultin

personalinjury.

Tilling Upand DownSlopes(Vertical Tilling)

• Tokeepsoil erosionto aminimum, besureto addenoughorganicmatterto thesoil sothat it hasgoodmoisture-holdingtextureandtry to avoidleavingfootprints or wheelmarks.

• Whentillingvertically,tryto makethefirst passuphillasthetillerdigs moredeeplygoinguphillthanitdoesdownhill.Insoftsoilorweeds, youmayhaveto lift the handlebarsslightly whilegoing uphill.Whengoingdownhill, overlapthefirst passby aboutone-halfthewidthof

thetiller. TillingAcrossSlopes Without UsingTerraces(HorizontalTilling)

• If verticalor terracinggardeningaren'tpracticalfor you,then youcantill laterallyacrossa slope.Wedon'trecommendthis methodasit cancreateunsurefooting and invitessoil erosion.

• As interracegardening,startatthe topof theslopeandoverlapthefirst passbyhalfthewidthof thetiller.Foraddedstabilityof thetiller, alwayskeeptheuphillwheelinthe soft,newlytilledsoil.

TerraceGardening

• Whena slopeistoo steepor too shortfor verticaltilling, it may benecessaryto till acrossthe slopeand createterracedrows.Terraces arerows thatarecut into the sideof aslope,creatinga narrow,but flat areaon whichto plant.

• Ona long slope,youcan makeseveralterraces,onebelowthe other.

• Terracesshouldbeonly 2-t0-3feetwide.Diggingtoofar intothesideof theslopewill exposepoorsubsoilthat is unproductivefor plants.

TILLINGTIPS& TECHNIQUES(CON'T)

TerraceGardening(continued)

• Tocreateaterrace,startat thetop of theslopeandworkdown.Gobackandforth acrossthe first row asshown in Fig.4-10.

• Eachsucceedinglowerterraceisstartedbywalking belowtheterraceyou're pre- paring.Foraddedstabilityofthetiller,alwayskeeptheuphillwheelinthesoft,new-

ly tilled soil. Donot till the last 12" ormore of thedownhill outsideedgeof each terrace.This untilled strip helps prevents the terracesfrom breakingapart and

washingdownhill. Italsoprovidesawalkingpathbetweenrows. _, REPEAT

Fig. 4-10

Clearingthe Tines

Thetines havea self-clearingactionwhich eliminatesmosttangling ofdebris in thetines. However,occasionallydry grass,stringystalksortoughvinesmaybe-

cometangled.Follow theseproceduresto helpavoidtanglingand to cleanthe tines,if necessary.

• Toreducetangling,setthedepthregulatordeepenoughto getmaximum"chop- ping"actionasthetineschop thematerialagainstthe ground.Also,try to till un-

dercrop residuesor covercropswhile theyare green,moist andtender.

• While powercomposting,try swayingthe handlebarsfrom side to side(about 6"to 12").This"fishtailing" actionoften clearsthetines of debris.

• Iftanglingoccurs,lift the tinesout ofthesoilandrun thetiller in reverse(if unit isequippedwithpoweredreverse)forafewfeet.Thisreversingactionshould un-

winda gooddealof debris.

LOADINGAND UNLOADING

THE TILLER

WARNING: Loadingand

unloading thetiller into a vehicleis potentially hazardous

andwedon't recommenddoing so unlessabsolutelynecessary,

asthis could result in personal injury or property damage.

However,if you must load or unloadthe tiller, follow the

guidelinesgiven next.

• Beforeloading or unloading,stopthe en- gine,wait for all parts to stop moving, disconnect the spark plug wire and letthe engineand muffler cool.

• Thetiller is too heavyand bulky to lift safelyby one person. Twoor more people

should sharethe load.

• Usesturdy ramps and manually (engine shut off) roll thetiller into and out of the vehicle.Twoormore peopleare neededto

do this.

• Theramps must bestrong enoughto support the combined weight of the tiller

and anyhandlers. The rampsshould pro- videgoodtraction to preventslipping; they

should haveside railsto guide thetiller along the ramps; andthey should have a

locking deviceto secure them to the vehicle.

• Thehandlersshouldwearsturdyfootwear

that will helpto preventslipping.

• Positionthe loading vehicle so that the ramp angle is as flat aspossible (the less incline to the ramp, the better). Turnthe vehicle'sengineoffand apply its parking

brake.

• Whengoing up ramps, stand in the normal operating position and push the

• Itmaybenecessaryto removethe debrisby hand (a pocketknifewill helpyouto cut awaythemate-

rial).Besure to stopthe engineanddisconnectthe sparkplugwirebeforeclearingthe tinesby hand.

WARNING: Beforeclearing the

tines byhand,stop theengine, allow all moving partsto stop and

disconnectthesparkplug wire. Removethe ignition keyon electric

start models.

Failureto follow this warning could result inpersonalinjury.

tiller aheadofyou. Havea person at each sideto turn the wheels.

•Whengoing down ramps, walkbackward with thetiller following you. Keepalertfor

anyobstacles behind you. Position a per- son ateachwheelto control the speed of

thetiller. Nevergo down ramps tiller-first, asthe tiller could tip forward.

•Placewoodenblocksonthedownhill side of the wheelsif you needto stop the tiller

from rolling downthe ramp. Also, usethe

blocksto temporarily keepthe tiller in placeon the ramps (if necessary),and to chockthe wheels in placeafter the tiller is

in the vehicle.

• Afterloadingthe tiller, prevent it from

rolling byengagingthe wheels in the WHEELDRIVEposition. Chockthe wheels with blocksandsecurelytiethetiller down.

SECTION5: MAINTENANCE

WARNING: Before inspecting, cleaningor servicing

the machine,shut off engine,

wait for all moving partsto come

to acompletestop, disconnect

spark plugwire and movewire awayfrom spark plug. Remove

ignition keyonelectric start models.

Failureto follow these instructions can resultinserious

personalinjury or property damage.

MAINTENANCESCHEDULE

PROCEDURE

Checkmotor oil level Cleanengine

Checkdrive belttension Checknuts and bolts

Changemotor oil Lubricatetiller

Serviceengine air cleaner system Checkgearoil level in transmission

Checktines for wear Checkair pressure in tires

(if unit haspneumatictires) Servicespark plug

NOTES

1 Checkafter first 2 hours of break-in operation.

2 Before each use. 3 Every5 operating hours.

4 Every 10 operating hours. 5 Every30 operating hours,

6 Changemore frequently in dusty conditions.

7 - See EngineOwner's Manual forservice

recommendations.

8 - Whichever time interval occurs firsL g - Changeafter first 2 hours of break-in

NOTES

2,3 2,7

1,4 1,4

4,6,9 4

7 1,5

5 5

TILLER LUBRICATION

After every 10operating hours, oil or greasethe lubrication points shown in

Figure5-1 and described below. Usecleanlubricating oil (#30weight motor

oil is suitable) and cleangeneralpurpose

grease(greasecontaining a metallubricant

is preferred, if available).

• Removethewheels,cleanthe wheelshaft (A,Fig. 5-1) and applyathin coating of

greaseto the wheel shaft.

• Greasethe back,front and sides of the depthregulator lever (B, Fig.5-1).

• Removethetines andcleanthetineshaft (C,Fig.5-1). Usea file or sandpapertogen-

tly removeany rust, burrs or rough spots

(especiallyaround holes in shaft). Apply

greaseto ends of shaft beforeinstalling tines.

• Oilthethreads on the handlebar height

adjustment screws andthe handlebar attaching screws (D, Fig.5-1).

Figure5-1

CHECKFOR OIL LEAKS

Beforeeachuse,checkthetiller for signs of

an oil leak-- usually adirty, oily accumu-

lation eitheronthe unit or on the floor.

A little seepagearound a cover or an oil sealis usually not a causefor alarm. How- ever,if the oil drips overnight, then imme-

diateattention is needed. Ignoring an oil

leakcan result in severetransmission damage!

If acover is leaking,check for loose

screws. If the screws aretight, a new gasket or oil seal may be required.

If the leakisfrom around a shaftand oil

seal, the oil sealprobably needsto be

replaced.Seeyour authorized dealeror

contact the factory for service or advice.

IMPORTANT:Neveroperatethe tiller if

thetransmission is low on oil.Checkthe

oil levelafterevery 30 hours of operationand wheneverthere is any oil

leakage.

CHECKHARDWARE

Checkfor looseormissing hardwareaf-

ter every 10 operatinghours andtighten

or replace(asneeded)beforereusing

tiller

Besureto checkthe screwsunderneath

thetiller hoodthat securethe transmis- sioncoverandthe DepthRegulatorLever

to thetransmission.

CHECKTIRE PRESSURE

(Models with pneumatictires)

Checkthe airpressurein bothtires. The

air pressure should be between 15 PSi and 20 PSi (pounds per squareinch).

Keepbothtires equally inflatedto help prevent machinefrom pulling to one

side.

TRANSMISSION

GEAROIL SERVICE

Checkthe transmission gear oil level after every 30hours of operation or wheneveryou noticeanyoil leak.Oper- ating thetiller when the transmission is

low on oil can result in severedamage.

A. To Checkthe Transmission

GearOil Level:

1. Checkthe gear oil levelwhenthe

transmission is cool. Gearoil will expandin warm operatingtemperatures

and thisexpansionwill provideanincor-

rect oil level reading.

2. With thetiller onlevelground, pullthe

Depth RegulatorLeverall the way up.

3. Removethe oil fill plug (A,Fig.5-2) from thetransmission housingandlook

insidethe oil fill hole to locatethe main

driveshaft situated below the hole.

moving partsto come to a completestop, disconnect sparkplugwireand move wireawayfrom

WARNING: Beforeinspecting, cleaning orservicing the machine,shut off engine,wait for all

spark plug. Failureto follow these instructions can resultinseriouspersonal injury or property damage.

4. Thegear oilleveliscorrect ifthegear oil isapproximately halfway upthe sideofthe

main driveshaft.

5. Ifthegearoillevelislow,addgear oil as described next.If the gearoil levelisokay, securely replacethe oil fill plug.

IMPORTANT:Donot operatethe tiller ifthe gear oillevel islow. Doingso will result in severedamageto the transmission com- ponents.

Figure5-2:Remove oil fill p/ug (,4)to check gear oil level and toaddgear oil. Remove fourcoverscrews(B) to drain gear oil.

6. If adding only a fewouncesof gearoil, useAPI ratedGL-4or GL-5gearoil having a viscosity of SAE140, SAE85W-140 or SAE80W-90. If refilling an empty trans- mission, useonly GL-4gear oil having a viscosity of SAE85W-140 or SAE140.

IMPORTANT:Donot useautomatictrans- mission fluid or motor oil inthe transmis- sion.

7. Whilecheckingfrequentlyto avoidover- filling, slowly add gear oil into the oil fill

hole until it reachesthe halfway point on

the drive shaft.

8. Securely replacethe oil fill plug.

B. ToDrain theTransmissionGearOil:

Thetransmission gear oildoesnotneedto bechangedunlessit hasbeencontaminat- ed with dirt, sand or metal particles.

1. Drain gasolinefrom the fuel tank or run

the engine until the fuel tank is empty.See

"DANGER"statement below.

WARNING: Gasolineis

highlyflammable andits vapors areexplosive. Followthese safety practicesto prevent personalinjury or property damagefrom fire or explosion.

Allow the engine and muffler to cool for at least two minutes beforedrain-

ingthe Uller's gasolinetank.

Do not allow open flames, sparks,

matchesorsmokinginthe area.

Wipe away spills and pushtiller away

fromspilledfuel.

Use only an approvedfuel container

and store it safelyoutof the reach of children.

Do notstoregasolineinan area where

its vaporscould reach an openflame orspark,orwhereignitionsourcesare present(suchashot water and space heaters, furnaces, clothes dryers, stoves,electricmotors,etc.)

2. Drain the oil from the engine.

3. Removefour screws (B,Figure5-2) and removetransmissioncoverandgasket.

4. Removethe left-side wheel.

5. Tilt the left-side wheelshaft into a drain panand allowthe gearoil to drainthrough

the top of the transmission.

6. Reinstall the wheel.

7. Install a newgasket (do not reuse old gasket)and reinstall thetransmission cov- er.

8. Refill thetransmission using GL-4gear oil (SAE85W-140 or SAE140).

9. Refill the enginewith motor oil and re- plenishthe fuel tank with gasoline.

BOLOTINES

Thebolo tines will wearwith useand should be inspectedatthe beginning of

eachtilling seasonand after every30 oper- ating hours. Thetines can be replacedei- ther individually or as a complete set. See the Parts List pagesfor tine identification and part numbers.

A. Tine Inspection:

With use,the tines will becomeshorter, narrower and pointed. Badlyworn tines will result in a loss of tilling depth, and re- ducedeffectiveness whenchopping up andturning under organic matter.

B. Removin_nstalling a Single Tine:

1. With the engine shut off andthe spark plug wire disconnected,removethetwo

screws (A,Figure5-3), lock washers (E) and nuts (B)that attach a singletine to a

tine holder. Ifneeded,usepenetratingoil on the nuts.

2. When installingasingletine, besureto position it so that its cutting edge (sharp)

will enter thesoft first as the tiller moves forward.

C. Removin_nstalling a TineAssembly:

1. Atine assemblyconsists of eighttines mounted on atine holder.

2. If removing both tine assemblies,mark them "left" and "right" beforeremoval. Re- movethe screw (C,Figure5-3), lock wash-

er (E)and Iocknut (D) that secure thetine assemblyto thetine shaft. If necessary,

usea rubber mallet to tap thetine assem- blyoutward offthe shaft.

3. Before reinstallingthetine assembly,in- spectthe tineshaftfor rust, roughspots or

burrs. Lightly file or sand, asneeded.Ap-

ply a thin coat of greaseto the shaft.

4. Install eachtine assemblyso that the

cutting (sharp) edgeof thetines will enter thesoft first whenthetillermovesforward.

Securethe tine assemblyto the tine shaft

usingthe screwand Iocknut

,_ WARNING: Beforeinspecting, cleaningor servicing the machine,shut off engine,wait for all

moving partsto come to a completestop, disconnectspark plug wireand move wireawayfrom spark plug. Failureto follow these instructions can resultinseriouspersonal injury or property

damage.

FRONT/

FORWARD

Figure5-3:Instafl tinesso that cuttingedge of tines enter soft first when tiller movesforward.

CHECKINGAND ADJUSTING FORWARDDRIVE BELT TENSION

It is important to maintain correct tension on the forward drive belt. A loose beltwill

causethetinesandwheelsto slow down-- or stop completely-- eventhough the en-

gine is running at full speed.A too tight belt can resultin unintentional tine move-

ment whenthe clutch bail is inthe Neutral (released)position.

• Checkbelt tension afterthe first two hours ofbreak-inoperationandafter every

10 operatinghours.

• Atthe end of eachtilling season,check

the belt for cracks, cuts or frayededges

and replaceit assoon as possible. ToCheckForwardBeltTension:

1. Stop engine,wait for all parts to stop moving and disconnectsparkplug wire.

2. With the ForwardClutchBailinan open (released)position, measureand notethe overalllength ofthe cablespring (A,Figure 5-4) by measuringfrom the outermost coil

to the outermost coil.

3. SqueezetheForwardClutch Bailagainst

the handlebar(see Figure5-4) and re-

measurethe length of the coils. Thebelt

tension is correct if this second measure-

ment isbetween1/6"-to- 3/16"longer than

the first measurement.

4. If the spring is too short (lessthan 1/16"),the tension istoo loose. If the spring is too long (more than 3/16"), the

tension is too tight.

5. Toadjust the length ofthe spring: a. ReleasetheForwardClutch Bail.

Figure5-4: Tocheckforwardbelt tension,taketwomeasurementsofthe overa///engthof thecoils inthespring-- first withthedutch bail open,

thenwith thedutch bail closedagainstthe handlebar.

b Unthreadthe hex nut (C,Figure 5-4)

halfway up the adjustment screw (D).

c. Unhookthetop ofthe springfrom the

Forward Clutch Bail.

d. Usepliers to preventthe adjuster (B) from turning andturn the slotted screw lo- cated insidethe spring clockwise (viewed from operator'sposition) to increaseten- sion onthe spring.Turnthescrewcounter-

clockwiseto decreasetension. Once adjusted, reattachthe spring to the For-

ward Clutch Bail.

e.RepeatSteps2and3to re-measurethe lengthof thespring.Whenthesecondmea-

surementis between1/16"-to-3/16"longer thanthefirst measurement,retightenthehex nut (C)againstthetop oftheadjuster(B).

ReplacementBelt Information

If the drive belt needsto be replaced,see

your local authorizeddealeror referto the

Parts Listfor ordering information. Use only afactory-authorized belt asan"over- the-counter" belt maynot perform satis-

factorily. Theprocedure requiresaverage mechanicalability andcommonly available

tools.

,_ WARNING: Beforeinspecting, cleaningor servicing the machine,shut off engine,wait for all

moving partsto come to a completestop, disconnectspark plug wireand move wireawayfrom spark plug. Failureto follow these instructions can resultinseriouspersonal injury or property

damage.

FORWARDCLUTCH BAIL ADJUSTMENT

If the Forward Clutch Baildoes notfunc-

tion properly,first checkthat the forward

drive belt is adjusted properly (see Check-

ing andAdjusting Forward Drive Belt Ten- sion). If this fails to correct the problem,

contact Troy-Bilt LLCoryour authorized dealerfor serviceadvice.

CHECKINGANDADJUSTINGRE- VERSEDRIVEBELTTENSION

(Model634Aonly)

It is important to maintain correct tension on the reversedrive belt. A loosebelt will

causethetines andwheelsto slow down - or stop completely- eventhough the en- gine is running at full speed.

Whenchecking belttension, also checkthe belt for cracks, cuts or frayed edgesand replaceit as soon as possible.

• Checkbelt tension afterthe first two hours ofbreak-inoperationandafter every

10 operatinghours.

ToCheckReverseBeltTension:

1. Stopengine, wait for all parts to stop moving and disconnectsparkplug wire.

2. Removescrew in plastic beltcoverand slide beltcover (which is attachedto for-

ward clutch cable) out of the way.

3. Haveanassistant pull the Reverse Clutch Control knob all the way out and hold it inthat position. Measurethelength

of the cablewire betweenthe end of the

threadedcableadjuster (A,Figure5-5) and the end of the Z-fitting (B)to which the ca-

ble wire is attached.

4. Thebelttensionis idealif the cablewire lengthmeasuresbetween1/8"to 1/4".Ifit is

lessthan 1/8"(andif there is no reverseac- tion whenthe tiller is running), thenmake the following adjustments

NOTE:Ifthe lengthis morethan 1/4",noad- justment isneeded--aslongasthe reverse

actionfunctions properly.

5. Releasethe ReverseClutch Control knob.andthen unthread the inner jam nut

(C, Figure5-6) oneto two turns. Pull the threaded cableadjuster(A, Figure5-6) to the left until the innerjam nut (C)touches

the bracket.

6. Preventthe inner jam nut (C) from turn-

ing andtighten the outer jam nut (D)

againstthe bracket. Preventthe outer jam

nut (D) from turning and tighten the inner jam nut (C)againstthe bracket.

7. Measurethegapby repeatingStep 3.

Readjustas neededby repeating Steps5

and 6.

8. Reinstallthe belt cover.

Figure5-5: Measure cable wire lengthto checkfor correctreversebelt tension.

Figure5-6:Movethreadedadjuster(,4)toleft toincreasebelttension.

Replacement Belt Information

If the drive belt needsto be replaced,see

your local authorizeddealeror referto the

Parts Listfor ordering information. Use

only a factory-authorized belt asan "over- the-counter" belt maynot perform satis-

factorily. Theprocedure requiresaverage mechanicalability andcommonly available

tools.

ENGINECLEANING

Keepingthe engineclean will help to en-

sure smooth operation and prevent dam- agefrom overheating.Referto the Engine

Owner's Manualfor enginecleaning ser- vice intervals and instructions. Besure

thatthe muffler iscoolbeforeservicingthe engine.

AIRCLEANERSERVICE

Theair cleaner filters dirt and dust out of the air before it enters the carburetor.Op-

eratingthe enginewith a dirty, clogged air filter can causepoor performance and damageto the engine. Neveroperatethe enginewithout the air cleanerinstalled. In- spectand service the air cleanermore of- ten if operating in very dusty or dirty conditions. Referto the engine Owner's

Manualfor aircleanerserviceintervalsand

instructions.

ENGINEOIL SERVICE

Checkthe engine oillevel beforeeachuse and aftereveryfivehoursof continuous operation. Runningthe engine when it is low on oil will quickly ruin the engine.

It is recommendedthat you changethe motor oil afterevery10hours of operation and evensooner when operating in ex- tremely dirty or dusty conditions. Referto the EngineOwner'sManualfor detailed

serviceinstructions.

A. ToChecktheEngineOilLevel:

1. Parkthetiller ona levelareaandshut off the engine.

2. Leveltheengine(use the Depth Regula- tor Leverto adjust the engineangle).

,_ WARNING: Beforeinspecting, cleaningor servicing the machine,shut off engine,wait for all

moving partsto come to a completestop, disconnectspark plug wireand move wireawayfrom spark plug. Failureto follow these instructions can resultinseriouspersonal injury or property

damage.

3. Cleanaround the oil dipstick or oil fill

tube (whichever applies) to prevent dirt

from falling into the crankcase.

4. Onengineswith an oil fill tube, remove

the fill capandaddoil (if required) until it

reachesthetop ofthefill tube. Reinstallthe fill cap.

5. Onengineswith a dipstick, remove it and wipe it clean. Reinsertthe dipstick,

tighten it securely,and removeit. Add oil

asneededto bring the levelupto theFULL mark.Wipe dipstick cleaneachtime oil levelis checked. Donotoverfill. Tighten dipstick securely.

B. ToChangethe EngineOil: Changethe engineoil as instructed inthe

EngineOwner's Manual.

SPARKPLUGSERVICE

Inspect andcleanor replacethespark plug after every100operating hours or annual- ly. Referto the EngineOwner'sManualfor spark plug serviceinstructions.

In some areas,local law requiresusing re- sistor spark plugsto suppress ignition sig- nals. Ifthe enginewas originally equipped with a resistorspark plug, use the same

type for replacement.

SPARKARRESTERSCREEN SERVICE

If the engine muffler is equipped with a spark arresterscreen, removeand cleanit according to the service intervalsand in- structions in the EngineOwner'sManual.

THROTTLELEVERADJUSTMENT

If the engine doesnot respondto various

throttle leversettings, referto the Engine

Owner'sManualfor serviceinformation or contact your localauthorizedenginedeal-

er.

WARNING: Operators

shallnot tamper withtheengine governorsettings onthe machine;the governor controls

the maximum safeoperating

speedto protect theengineand all moving partsfrom damage causedby overspeed.

Authorizedserviceshall be sought if a problem exists.

CARBURETOR/GOVERNOR CONTROLADJUSTMENTS

Thecarburetor wasadjusted at thefactory for best operatingspeed.Referto the En- gine Owner's Manualfor anyadjustment information or seeyour authorizedengine

dealer. Thegovernor controls the maximum safe

operatingspeed and protects the engine andall moving partsfrom damagecaused by overspeeding.Donot tamper with the enginegovernor settings.

OFF-SEASONSTORAGE

Whenthe tiller won't be usedfor an ex- tendedperiod, prepareit for storageasfol-

lows:

1. Cleanthetiller and engine.

2. Do routinetiller lubrication and check for loose parts and hardware.

3. Protect the engine and perform recom- mendedengine maintenanceby following the storage instructions found in the En- gine Owner's Manual. Besure to protect the fuel lines,carburetorandfuel tank from gum deposits byremoving fuel or by

treating fuel with a fuel stabilizer (follow enginemanufacturer'srecommendations).

4. Store unit in aclean, dry area.

5. Neverstore thetiller with fuel in thefuel tank inanenclosedareawhere gasfumes

could reachanopenflame or spark, or whereignition sourcesarepresent(space

heaters,hot water heaters,furnaces, etc.).

moving partsto come to a completestop, disconnectspark plug wireand move wireawayfrom

WARNING: Beforeinspecting, cleaning orservicing the machine,shut off engine,wait for all

spark plug. Failureto follow these instructions can resultinseriouspersonal injury or property damage.

TROUBLESHOOTING

PROBLEM

Enginedoes notstart

Enginerunspoorly.

Engineoverheats.

Enginedoesnotshotoff WheelsandTineswillnotturn

Tinesturn,butwheelsdon't,

WheelsTurn,butTinesDon't,

Poortillingperformance.

POSSIBLECAUSE

1. Spark plug wire disconnected

2. Engine Throttle Control Lever incorrectly set.

3. Fueltank empty.

4. Choke control (if so equipped) in incorrect position.

5. Stale gasoline.

6. Dirty air filter.

7. Defective or incorrectly gapped spark plug.

8. Carburetor out of adjustment.

9. Misadjusted throttle control.

10. Dirt or water in fuel tank.

1. Defective or incorrectly gapped spark plug.

2. Dirty air filter(s).

3. Carburetor out of adjustment.

4. Stale gasoline.

5. Dirt or water in fuel tank.

6. Engine cooling system clogged.

1. Engine cooling system clogged.

2. Carburetor out of adjustment.

3. Oil level islow.

1. Misadjusted throttle control or ignition switch.

1. Improper useof controls.

2. Worn, broken, or misadjusted drive belt(s).

3. Internal transmission wear or damage.

4. Bolt loose in transmission pulley.

1. Wheel Drive Pins not in WHEELDRIVE.

2. Bolt loose in transmission pulley.

3. Internal transmission wear or damage.

1. Tine holder mounting hardware missing.

2. Bolt loose in transmission pulley.

3. Internal transmission wear or damage.

1. Worn tines.

2. Improper Depth Regulator setting.

3. Incorrectthrottle setting.

4. Forward Drive Beltslipping.

CORRECTION

Reconnectwire.

2. Put lever in STARTposition.

3. Add fuel.

4. See EngineOwner's Manual.

5. Drain fuel and add fresh fuel.

6. Clean or replace filter.

7. Inspect spark plug.

8. See EngineService Dealer.

9. See EngineService Dealer

10. See EngineService Dealer. Inspectspark plug (see Engine Owner'sManual).

2. Clean or replace (seeEngineOwner's Manual).

3. See EngineService Dealer.

4. Replacewith fresh gasoline.

5. See EngineService Dealer.

6. Cleanair cooling system (see Engine Owner'sManual).

Cleanair cooling area (see Engine Owner'sManual).

2. See EngineService Dealer.

3. Check oil level (seeEngine Owner's Manual).

1. See EngineOwner's Manualor EngineService Dealer.

1. Review Sections 3 and4.

2. See "Checking Drive Belt Tension,"Section 5.

3. Contact local dealeror the factory.

4. Tighten bolt.

1. See "Wheel Drive Pins" in Section 3.

2. Tighten bolt.

3. Contact local Dealeror the Factory.

1. Replacehardware.

2. Tighten bolt.

3. Contact local Dealeror the Factory.

1. See "Bolo Tines" (Section 5).

2. See "Tilling Tips & Techniques," Section 4.

3. See Section 4.

4. See "Checking Forward Drive Belt Tension,"Section 5.

SECTION6: MODELS630C& 634APARTSLIST

15_

REF NO.

1 1185469

2 710-0597 3 710-0599 4 710-0874 5 710-3008"

6 712-0324

7 712-0429t

8 1916707 9 736-0119 10 GW-55013-1

11 GW-55013-2 12 GW-55015

*4 on Mode1634A

t 6 on Mode1634A

PART NO.

715-0108

712-04064

712-04063

12 7_

DESCRIPTION

Spirol Pin (B) Spirol Pin (A)

HexHd. Screw, 1/4-20x 1 Screw,Self-Tapping,I/4-20 x 1/2

HexHd. Screw,5/16-18 x 1-1/4 HexHd. Screw,5/16-18 x 3/4

Lock Nut, 1/4-20 (B) FlangeLock Nut, 1/4-20 (A) Lock Nut,5/16-18 (B) FlangeLock Nut, 5/16-18 (A) Support Bracket Lock Washer,5/16 (B)

Hood Bracket,Left Hand Hood Bracket,Right Hand

DragBar

REF

NO.

13 14

15 16 17

18 19 20

21 22 23

PARTNO.

GW-55018 686-04041

686-04043 GW-55088 GW-9384 GW-9534

710-04048 786-04191 618-04000

618-04254 1916570 1916771 710-0395

736-0275

(A)ForModel630C (B)ForModel634A

DESCRIPTION

DepthRegulatorLever TineHoodAssembly (B) TineHoodAssembly (A) Bushing Spring, Depth Regulator Spacer HexHd. FlangeScrew,5/16-18 x 1 TrailShield Stop Bracket Transmission Assembly(B) Transmission Assembly(A) ReverseStop Arm (A) Split Spacer,.462x.328 x 1.63 (A) Screw,5/16-18 x 2.25 (A) FlatWasher,.344 x.688 x.065 (A)

MODELS630C& 634A

14 18

MODELS630C & 634A

REF

NO.

1 2 3 4 5

8 9

18 20 21 22 23 25

PARTNO. DESCRIPTION

1916719 1916755

747-04210

1918745 710-0599 710-3008 712-3009 786-04188

GW-55043 786-04200

GW-55044

GW-9855 725-0157 736-3050 786-04040 732-04185 710-0106 710-0216 710-0805 712-0121 712-0291 712-3000 736-0119

CableAssembly,Reverse Clutch(B)

UpperHandlebar Bail,ForwardClutch

CableAssembly,Forward Clutch

Screw,Self-Tapping,I/4-20 x 1/2 Screw,Hex,5/16-18 x 3/4 HexLock Nut,5/16-18 HandlebarSupport

Lower Handlebar Panel

Tab, ConduitMount

Screw,#10-24 x 2

CableTie

FlatWasher, 3/8 Bracket,ReverseClutch Cable(B) Spring,ForwardClutch HexHd.Screw, 1/4-20 x 1-1/4

Screw,Hex,3/8-16 x 3/4 Screw,Hex,5/16-18 x 1-1/2

HexNut,#10-24 HexLock Nut, 1/4-20 HexNut,3/8-16 LockWasher,5/16

REF

NO.

PARTNO. DESCRIPTION

1 749-04193 Bumper(B) 2 710-0395 HexScrew,5/16-18x2-1/4(B) 3 712-04063 Nut,FlangeLock,5/16-18(B) 4 726-0201 SpeedNut(B)

(A)ForModel630C (B)ForModel634A

MODELS630C& 634A

REF

NO.

1 2 3 4

(A)ForModel6300 (B)ForModel634A

* Useas

requiredto obtain between.O05"and.015" allowable end-play.

PARTNO. DESCRIPTION

GW-9517 GW-9400

GW-50043 711-04109 711-04110

GW-9401

GW-1224-1"

GW-1224-2"

GW-1224-3"

GW-1224-4"

GW-1325C

SnapRing DriveShaft BearingCup Support Washer,Rear DriveShaft (B) DriveShaft (A) DriveShaft BearingCone Shim,RearBearingCap,.010"thick Shim,sameasabove,except.030"thick Shim,sameasabove,except.005"thick Shim,sameasabove,except.062"thick Shim Set(Incl.the following shims:

two #1224-1, two 1224-2 & one#1224-4)

MODELS630C & 634A

FRONT

(A)ForModel6300 (B)ForModel634A

REF

NO.

1 2 3

4 5

7 8 9

* Useas

PARTNO. DESCRIPTION

GW-9512 1909950 GW-1166-1* GW-1166-2" GW-1166-3" GW-1166-4" GW-1166-5"

GW-1086 711-04092 711-04088

GW-9305

GW-1132-2

1904278 711-04078

GW-1104

1904279

1916542

requiredto obtain between.O05"and.030" allowable end-play.

Retainer,Snap Ring, "E" Type Retainer,Snap Ring Shim,0.062"thick Shim,0.030"thick Shim,0.015"thick Shim,0.010"thick Shim,0.005"thick

BronzeBushing WheelShaft (B) WheelShaft (A)

Key,Hi-Pro, 1/4x 1

Spacer Worm Gear,Wheel Shaft

Tiller Shaft Woodruff Key

Worm Gear,Tiller Shaft (B) Worm Gear,Tiller Shaft (A)

.,J

MODELS630C& 634A

REF

NO.

1 2 3 4 5 6 7

PART NO.

GW-9727 710-04049 736-0119 1918377 1916641 GW-50032 721-04030

DESCRIPTION

Plug, TransmissionOil Fill 8 Hex Hd.FlangeScrew,5/16-18 x 5/8,Gr. 5 9 Lock Washer,5/16 10 RearCover, Transmission 11 FrontCover, Transmission 12 Gasket,Housing Cover 13 OilSeal, DriveShaft 14

11"

* included with transmission when purchasedasan assembly only.

Removeand discard when installing the transmission on tiller.

REF

NO.

PARTNO.

721-04031 619-04013 721-04036 736-3008* 718-04008 710-04048 710-3008

DESCRIPTION

OilSeal,WheelShaft TransmissionHousingAssembly OilSeal,TineShaft Washer,Flat,.344x.750x.120 RearBearingCap HexHd.FlangeScrew,5/16-18x 1 HexHd.FlangeScrew,5/16-18x3/4

Hold Tines With Blunt End Toward You

MODELS630C & 634A

FRONT

RIGHT-HANDTINE

NOTE:Identify Left and Right sides of tiller by standing in operator position and facing direction offorward travel,

LEFT-HANDTINE

TINE SHAFT

WHEELSHAFT

,.11(A)

3 (B)

REF NO.

1 710-0514 2 GW-50049-02 3 712-3000 4 710-0347 5 GW-50049-01 6 1916747

7 1917487

PART NO.

1915075

DESCRIPTION

HexHd. Screw,3/8-16 x 1,Grade5 Single BoloTine- Left Hand(A) (B) HexLock Nut, 3/8-16 HexHd. Screw,3/8-16 x 1-3/4 Single BoloTine- Right Hand(A) (B) TineHolder (B) TineHolder (A) Wheel& TireAss'y -- Left/Right Side(B)

REF

NO.

734-04162

8 734-04161 9 GW-9380

10 GW-9338 11 712-04065

-- GW-1901

PARTNO.

(A) ForModel630C (B) ForModel634A

DESCRIPTION

Wheel& Tire Ass'y -- Left Side Only(A) Wheel& Tire Ass'y -- Right SideOnly(A) ClevisPin,.312"x 1-3/4"

Hair PinCotter FlangeLock Nut, 3/8-16 (A)

Bolo TineReplacementSet(Incl. eight right-hand tines, eight left-hand tines and requiredhardware. (A)(B)

MODELS630C& 634A

MODELS630C & 634A

(A)ForModel630C (B)ForModel634A

REF

NO.

1 2 3 4

7 8 9

19 2O 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45

PARTNO. DESCRIPTION

736-0159 714-0139

1916531 1916532 656-04023 1916535 1916652 1916657 1916658 1916660 1916724 1916725 1916726 1916794 1916795 1917326 1917746 1918731

1918744 710-0117 710-0237 710-0376 710-04049 710-0520 710-0599 710-3103 712-3000 712-3009 736-0119 736-3050 736-3090 710-0151

GW-1138-2 736-0315

GW-50027

GW-55034

GW-55049

GW-9090

GW-9301 736-3078

GW-9944 710-0672 710-0805 712-3010 736-0242 736-0452 750-0258

FlatWasher, 5/16 (B) Key,3/16"x 2"

Pulley,EngineDrive Transmission Pulley (B) Transmission Pulley (A)

Pulley,ReverseIdler (B)

Guard,Belts/Pulleys

ForwardDrive Belt

ReverseDriveBelt(B)

BeltCover

ReverseReturn Spring (B)

ReverseBeltGuide (B}

ForwardBelt Guide

EngineBracket,Left

EngineBracket,Right

Bracket,Belt Cover

ShoulderWasher

ReverseIdlerArm (B)

ForwardIdlerLever

HexHd.Screw, 5/16-24 x 1

HexHd.Screw, 5/16-24 x 5/8

HexHd.Screw, 5/16-18 x 1

HexHd.Screw, 5/16-18 x 5/8

HexHd.Screw, 3/8-16 x 1-1/2

Screw,Self-Tapping,1/4-20 x 1/2

HexHd.Screw, 5/16-18 x 2(B)

Lock Nut,3/8-16

Lock Nut,5/16-18 (B)

LockWasher,5/16

FlatWasher, 3/8

FlatWasher

HexHd.Screw, 3/8-24 x 2.00

Shim (B}

FlatWasher,.75 x1.5x.125 (A}

Support Washer

ForwardReturn Spring

Bracket,Cable Mounting

ForwardIdlerPulley

Key,3/16"x 1"

FlatWasher

BellevilleWasher

HexHd.Screw, 5/16-24 x 1.25(A)

HexHd.Screw, 5/16-18 x 1-1/2 (A)

HexNut,5/16-18 (A)

BellWasher,.340 x.872 x.060 (A)

BellWasher,.396 x 1.140 x.095

Spacer,.315x.750x 375 Lg (A)

TROY-BILT TILLER LIFETIME LIMITED WARRANTY

WHAT PRODUCT IS COVERED

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

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.

All Troy-Bilt branded rear tine walk-behind tillers with gear drive transmissions. 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.

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.

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 COMMERCIAL USE WARRANTY

HOW TO OBTAIN SERVICE

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

Some states do not allow the exclusion or limitation of incidental or consequential damages, or limitations on how long an

This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

If used for commercial, institutional, industrial, rental, or demonstrator purposes, the warranty on the tiller is limited in duration to 90 days from the date of purchase.

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.

Warranty service is available, with proof of purchase, through your local authorized 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.

purchased for commercial or other non-residential use).

implied warranty lasts, so the above exclusions or limitations may not apply to you.

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

Troy-Bilt TUFFY 1634A, TUFFY 630C, Super Bronco 634A Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual