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

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Operator's Manual

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Rear-tine Tiller Models

630C--Tuffy ¢ 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

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

10/6/04

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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.

_ 7>,,,,

/;/ ,> ;'V }/ )

..... f ; @; t ;D

j;_ ?" #'s " 4t, ' F_ i/!s ,

* ;,, #FOX }_ j,"

,,, >,, 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.

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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 exhaust from this productcontains 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 literatureyou may receive. Bethoroughly familiar withthe controls andthe proper useof the tiller and its en- gine. Know howto stopthe unit anddisen- gagethe controls quickly.

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

3. Keepthe areaof operation clear 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 loose gar- ments or jewelry that could get caught in moving parts.

4. Donot operatethe tiller when barefoot or wearingsandals, sneakers,or light foot- wear.Wear protective footwear thatwill improve footing onslippery surfaces.

5. Donottill nearunderground electricca- bles,telephone lines, pipes or hoses.If in doubt, contactyour telephoneor utility

company.

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

a. Store fuel in containers specifically

b. Thegascapshall neverberemovedor

Preparation

1. Thoroughly inspect the areawherethe

tiller is to be usedand removeall foreign

objects.

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

sition beforestarting the engine.

c. Keepmatches, cigarettes, cigars,

d. Fill fuel tank outdoors with extreme

Standard-Rotating-Tines

(SRT)

DrivePin

Figure 1-1: Tiller featuresand contre/s. See separateEngine Owner'sManua/ to identifyengine contre/s.

e. Replaceall fueltank andcontainer

caps securely.

f. If fuel is spilled, do not attempt to

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

7. Nevermakeadjustments whenengineis running (unless recommendedby manu-

facturer).

Operation

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

designedfor this purpose.

fueladdedwhiletheengineisrunning. Allowthe engineto coolforseveral minutesbeforeaddingfuel.

pipes, openflamesand sparks away from thefueltankandfuelcontainer.

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

2. Exerciseextremecaution when onor

crossing gravel drives,walks, or roads. Stayalert for hiddenhazardsortraffic. Do

not carry passengers.

3. After striking a foreign object, stop the

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

machine.

Page 4

4.Exercisecautiontoavoidslippingorfall- ing.

5.Iftheunitshouldstarttovibrateabnor- mally,stoptheengine,disconnectthe

sparkplugwireandpreventitfromtouch- ingthesparkplug,andcheckimmediately forthecause.Vibrationisgenerallya warningoftrouble.

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

spark plug,wheneveryou leavethe operat- ing position, beforeunclogging thetines,

or whenmaking any repairs,adjustments or inspections.

7. Takeall possible precautions whenleav- ing the machine unattended.Stopthe en-

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

that both wheelsarein theWheelDrive po-

sition.

8. Beforecleaning,repairing,or inspect- ing, stop the engineand make certain all

moving partshavestopped. Disconnect

the spark plug wire and preventit from touching thespark plug to preventacci-

dentalstarting.

9. The flapon the fine hood must bedown when operating thetiller.

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

11. Donot run the enginein an enclosed area.Engineexhaust containscarbon

monoxide gas, a deadlypoison that is odorless, colorless, and tasteless.

12. Keepchildren and pets away.

13. Never operate thetiller underengine

powerif thewheels are in theFreewheel position.In the Freewheelposition, the

wheelswill not holdthe tiller back andthe revolvingtines could propel the tiller rapid-

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

tines4Nheelswith the ForwardClutch Bail

(all models)orthe ReverseClutchcontrol (Models 634Aonly).

14. Be awarethat the tiller may unex-

pectedlybounceupwardorjumpforward if the tines shouldstrikeextremelyhard packedsoil, frozenground,or buried ob- 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. Useshallower depthregulator

settings,working graduallydeeper

with eachpass.

¢. Use slowerenginespeeds.

d. Clearthe tilling area of all large

stones,rootsorother debris.

e. Avoidusingdownwardpressureon

thehandlebars. If needbe, use slight upwardpressuretokeep the

tinesfrom diggingtoodeeply.

f. Beforecontacting hardpackedsoil

at the endof a row,reduce engine speedand lift thehandlebarsto

raise thetines out of the soil.

g. In anemergency,stopthetinesand

wheels byreleasing whichever clutch controlis engaged.Donot

attemptto restrainthetiller.

15. Donot overloadthe tiller's capacityby attempting to till too deeplyat too fast a

rate.

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

Look behind and use carewhen backing up.

17. Donot operatethetiller on aslope that is too steepfor safety. When on slopes,

slow down and makesure you havegood footing. Neverpermit thetillerto freewheel

down slopes.

18. Neverallow bystandersnearthe unit.

19. Onlyuseattachmentsand accessories

that areapproved bythe manufacturer of the tiller.

20. Usetiller attachmentsand accessories when recommended.

21. Neveroperatethetiller without good visibility or light.

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

medication.

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

the governor controls the maximum safe

operatingspeedto protectthe engine and all movingparts from damagecaused by

overspeed.Authorized service shall be sought if a problem exists.

24. Do nottouch enginepartswhich may behot from operation.Letpartscool down

sufficiently.

25. Pleaseremember:Youcan alwaysstop

thetines and wheels by releasingthe For- ward Clutch Bail or on Model634Athe Re-

verseClutchcontrol, (whichevercontrol is engaged),or by moving the ignition switch and/orthrottle control leveron the engine

to "OFF" or "STOP".

26. Toloador unloadthe tiller, seethe in-

structions in Section4 of this Manual.

27. Useextremecautionwhen reversing

or pullingthe machinetowards you.

28. Startthe enginecarefully accordingto

instructions and with feet well awayfrom 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 screwsfor

proper tightness to besurethe equipment is in safeworking condition.

3. Neverstore thetiller with fuel inthe fuel

tank insidea building where ignition sourc- esare presentsuchashot waterandspace

heaters,furnaces, clothes dryers, stoves, electric motors, etc.). Allow the engineto cool before storing the unit in any enclo-

sure.

4. Toreducethe chancesof a fire hazard,

keepthe enginefreeofgrass, leaves,or ex- cessivegrease.

5. Storegasolinein acool, well-ventilated

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

from the reachof children.

6. Referto the Maintenancesections of

this Manualand the separateEngineOwn- er'sManualfor instructions ifthe unit is to

bestored for an extendedperiod.

7. Neverperform maintenancewhilethe

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

8. Ifthe fueltank hasto bedrained,dothis

outdoors.

Page 5

Decals

Foryour safetyandthe safety of others, vari- ous safety and operational decalsare located on your unit (seeFigure 1-2).

Keepthe decalscleanand legibleatall times. Contactyour local servicedealeror thefactory

for replacementsif anydecalsaredamagedor missing.

Referto the PartsListpagesin this Manualfor decallocations, descriptions and part 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. ° NEVERALLOWCHILDRENORUNINSTRUCTEDADULTSTOOPERATETILLER. ° SHUTOFFENGINEAND DISCONNECTSPARKPLUGWIREBEFOREMANUALLYUN-

CLOGGINGTINESORMAKINGREPAIRS. ° KEEPBYSTANDERSAWAYFROM MACHINE. ° KEEPAWAYFROM ROTATINGPARTS. ° USEEXTREMECAUTIONWHENREVERSINGOR PULLINGTHEMACHINETOWARDS

YOU.

I"1 I*1 R

CHOKE CHOKE REVERSE

ON OFF ROTATINGTINES

<,-K,

TILLERDIRECTION

TO AVOID SERIOUS INJURY:

<--o-->

LEVERDIRECTION

BAIL

ENGAGED

BAIL

DISENGAGED

Page 6

SECTION2: ASSEMBLY

WARNING: Toprevent

personalinjury or property damage,do notstartthe engine

until all assemblysteps are completeandyou haveread

and understandthesafety and operatinginstructions in this manual.

INTRODUCTION

Carefullyfollow these assemblysteps 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. Enginestyles varyby model, Your engine may appear differently than those

illustrated in this manual.

INSPECTUNIT

Inspect the unit and carton for damageim- mediatelyafter delivery.Contactthe carrier

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

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

ing and maila copyto the carrierwithin 15 days after the unit has beendelivered.

ContactTroy-Bilt LLCif you needassis-

tance inthis matter.

TOOLS/ MATERIALSNEEDED

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

(1) Largeadjustable wrench

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

removing wheels) (1) Tirepressure gauge (for models with

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

Manualfor oilspecificationsand

quantityrequired.

* Adjustable wrenches may be used.

ASSEMBLYSTEPS

STEP 1: UNPACKING INSTRUCTIONS

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

1.The tiller weighs approximately 133 Ibs. Do not attempt to remove it from the ship-

ping platform until instructed to do so in

these Assembly steps.

2. Removeany packagingmaterial from

the carton. Removeany staples from the

bottom of the carton and removethe car-

ton from the shipping platform.

3. Removeall unassembledparts andthe separatehardwarebag from the carton.

Checkthat you havethe items listed in the LooseParts List (contactyour local dealer or the factory items are missing 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 Hexnut, 5/16"-18

2 HexIocknut, 34}"-16

*Model 634Aonly

IMPORTANT:Motor oil must beaddedto

the enginecrankcasebeforetheengine is

started. Followthe instructions inthis Sectionand in the separateEngine

Owner's Manual.

NOTE: LEFTandRIGHTsidesof 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"-16x 3/4" 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. Usingtwo 5/16"-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 adjustment holes in the two handlebar support brackets (E

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

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, loosen attaching 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 raiseone wheel 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 inwardonthe wheel shaft (N, Fig.2-3). Reinstall the wheel

Page 7

°-! °

Fig. 2-3: Wheel in FREEWHEELposition

Fig. 2.2: Attachhandlebar.

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

wheeldrive pinwith the hairpin cotter (L), pushingthe hairpincotter in asfarasit will

go. The wheelshould now spin freely (freewheel) on the wheel shaft. Repeat

with the other wheel.

4. Usethe handlebarto roll the tiller to a flat area.

STEP 4: INSTALL FORWARD

CLUTCH CABLE

1. Carefullyunwrapthe forward clutch ca-

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

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

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

untilthe groove in the connector snaps into place.

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

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

IMPORTANT: Beforestartingthe engine,

the wheels must beplacedin theWHEEL

DRIVEposition (pinsthrough wheelhubs andwheelshaft). This procedureis

describedin WheelDrivePinsin Section3.

Fig. 2-4: Installingforward clutchcable bracketand cable.

Page 8

4. Checkfor correct tension ontheforward drive belt bytaking two measurementsof

the cable spring, as follows:

a.With the ForwardClutch Bail(Y,Fig. 2-

6) in an open (released)position, measure

the length ofthecablespring (W) from the

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

the handlebar(seeFig.2-7) andre-mea-

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

tween 1/16"to 3/16" longerthanthe first

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

from turning. c. Ifthe spring lengthis incorrect, you

must adjustthe cabletension asdescribed in Checkingand Adjusting Forward Drive

Belt Tensionin Section5. Incorrect cable

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

movement whenthe clutch bail is in Neu-

tral (cabletension too tight).

iiiiiiiiiiiiiiii

Fig. 2-7: Tocheckforwardbelt tension, take twomeasurementsofthelengthofthe coils inthe 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 andFig.2-9) from its shipping po- sition androute 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 of the hole.Slidethe hex nut (DD) up thecable andtighten it securely.

Flat Side

3. Fastenthe reverseclutch cable to 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 itsneutral posi-

tion (resting against bracket). Ifit doesn't,

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

Fig.2-5: Cable springand adjuster.

Fig. 2-6: Attach forward clutchcable spring to

forwardclutch bail.

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

shown.Attachwithcable tie(EE).

Page 9

5! 6: CHECKTRAHSMiSSiOH OILLEVEL

Thetransmission wasfilledwith gearoil at thefactory. However,you shouldcheckthe gear oil levelat this timeto makecertain it

is correct. IMPORTANT:Donot operatethetiller if the

gear oil level is low. Doingso will result in severedamageto the transmission com- ponents.

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

andthen all theway up until the lowest notch inthe lever isengaged.

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

locatethe maindrive shaft situated inside the housing.

3. Thegear oil levelis correct if thegear oil isapproximately halfway upthe sideofthe

main drive shaft.

4. Ifthe oil levelislow, add gear oil by re- ferring to A. ToCheckthe Transmission

dear 0il Levelin Section5.

I El-'/: AUU IVlUI UH UIL

Thetiller isshipped withoutoil in the en- gine.

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

damagewill result ifthe engineis run with- out oil.

1. Referto the separateEngineOwner's Manualfor engine oil specifications and

capacities.

2. With the tiller on levelground, movethe Depth RegulatorLever(FF,Fig.2-1O)upor

down until the engine is level.

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

4. Movethe DepthRegulator Lever all 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 inflatethe tires equally to be- tween 15 PSIand 20 PSI (pounds per squareinch). Besurethat bothtires 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, makesure you readthe follow- ing sectionsinthis Manual,as well asthe separateEngineOwner'sManual:

• Section1: Safety

• Section3: Featuresand Controls

• Section4: Operation

Page 10

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 Section describesthe locationand

function of thecontrols onyourtiller. Refer to the following Section, Operationfor de- tailed operatinginstructions.

Practice using these controls, with the en-

gine shut off, until you understandthe op-

eration of the controls and feelconfident

with eachof them.

ENGINE CONTROLS

Referto the enginemanufacturer'sEngine

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 wheel to the wheelshaft (B). The

wheelscan be positioned in either a

WHEELDRIVEor a FREEWHEELmode.

_ WARNING: Neverallow

either of thewheelsto bein the FREEWHEELposition whenthe

engineis running. Alwaysput both wheelsin the WHEEL

DRIVEposition before starting

the engine.

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

Beforestarting the engine,put both wheels

in the WHEELDRIVEposition byinserting the wheel drive pins through the wheel

hubsandthewheelshaft. Doingso "locks" the wheels to the wheel shaft, causing the

wheelsto turn when either the

ForwardClutch

Figure3-1: Tiller features and controls.See separateEngineOwner's Manual toidentify 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 wheelsto turn freely whenyou manually movethe tiller.

Toplacethewheels in WHEELDRIVEor FREEWHEEL:

1. Stopengine,disconnectsparkplug wire

Figure3-2: WHEELDRIVEposition.

from sparkplug andallowengineto cool.

wheelhub (D, Figure3-2) andwheel

_ WARNING: Donotplace

tiller on its sidewhen changing

wheeldrive positions. Doingso could result in gasoline leaking from the fuel tank.

Failureto follow this instruction could result in personalinjury

or propertydamage.

2. Raiseone wheelabout one inch off the ground andplaceasturdy 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 hairpincotter in asfar as it will go. Repeatwith the other wheeland then removethe support from

beneaththe transmission.

5. FORFREEWHEELMODE(Figure 3-3): Slidethewheelinwardandinsertthewheel

drive pin (A, Figure3-3) onlythrough the hole in the 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) bypushing hairpin cotter in asfar as it will go. Repeat

for the other wheeland then removethe support from beneaththetransmission.

Page 11

_--'i_ 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,and then pullthe 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 (theenginewill (if equipped) when thewheels 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"statement above). Bail(E).OnlyMode1634AhaveaReverse

2. Lift and hold the clutch bail (E,Figure3-

4)againstthehandlebartostartthewheels DEPTH REGULATOR LEVER

andtines rotating in aforward direction.

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

(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 beused when to the wheelsandtines.The reversingfea- starting the engine.

ture isusedfor maneuveringthe tiller

only-- neverengage thetines in the Moving the leverupward will increasethe

ground while operatingin reverse.

_ WARNING: Useextreme

pulling the machinetowards obstacles.

Neverattemptto till in reverse. Failureto follow thiswarning

could result in personalinjury or propertydamage.

Tooperatethe ReverseClutchControl:

1. Putwheelsin WHEELDRIVEposition (see"WARNING"statement at the left).

2. Stopall tiller motion by releasingthe Forward Clutch Bail.

ClutchControl(F).

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

ground, allowing the tiller to be moved

tilling depth.The lowest notch allows atill-

ing depthof approximately6", depending on soil conditions. For best results,always

begintilling ataveryshallowdepthsetting

and gradually increasethe tilling depth.

_b ARNING: Donotattempt

TravelPosition

Figure3-5: DepthRegulator Lever (G).

HANDLEBARHEIGHT ADJUSTMENT

Thehandlebarheight isadjustabletothree different settings (Figure3-6). In general, adjust the handlebars sothey areat waist

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

Toadjustthe handlebars:

1. Stop engine,disconnectspark plugwire from sparkplug andallow engineto cool.

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

Figure3-6: Handlebarheightadjustment.

to till too deeplytoo quickly.

Graduallywork downto deeper

tilling depths.

Placethe DepthRegulator Leverin the "travel" position

beforestarting theengine.This position preventsthetinesfrom

touching the ground untilyou

are readyto begintilling. Failureto follow thiswarning

could result in personalinjury or propertydamage.

High

Medium

Page 12

SECTION4: OPERATION

_ ARNING: Before

operatingyour machine, carefully readand understand all safety (Section 1),controls (Section 3) and operating 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 thetime to fa- miliarize yourself with the basicoperation of the tiller before using it in the garden. Findan open, levelareaand practice using

the tiller controls without thetines engag-

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

miliar with the tiller shouldyou beginusing it in the garden.

BREAK-INOPERATION

Perform the following maintenanceafter

the first two (2) hours of new operation

(see MaintenanceSection in this manual and in the Engine Owner'sManual).

1. Changeengineoil.

2. Checkfor loose or missinghardwareon unit. Tightenor replaceas needed.

3. Checktension onforward 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 beforeeachuse:

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 wheelhubs andwheel shaft).

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 allsafety guards andcovers are in place.

6. Checkair cleanerand engine cooling system. SeeEngineOwner's Manual.

,_ WARNING: GASOLINEIS

7. Fill thefuel tank with gasolineaccording

to the directions inthe separate Engine

Owner's Manual.Follow all instructions and safety rules carefully.

8. Attachsparkplug wire to spark plug. Startingthe Engine

Thefollowing steps describehow to start and stop the engine.

,_ WARNING: Donotattempt

HIGHLYFLAMMABLEAND ITS VAPORSAREEXPLOSIVE.

Followgasolinesafety rules in

this Manual(seeSection 1)and

in theseparateEngineOwner's Manual.

Failureto follow gasolinesafety instructions can resultin

serious personalinjury and property damage.

to engagethetines orwheels

until you havereadall ofthe 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 couldpropelthe tiller 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.

• Avoidenginemuffler andnearbyareas.

Temperaturesin these areas may ex- ceed 150° F.

3. Movethe Depth RegulatorLever all the

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

4. Releaseall controls on the tiller.

5. Onengine's with afuel shut-off valve,

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

6. Put ignition switch and/or throttle con-

trol leverlocatedonengine in the "ON", "RUN", "FAST"or "START"position, as in- structed inthe EngineOwner's Manual.

7. Chokeor prime engine,as instructed in

EngineOwner's Manual.

8. Put onehand on fuel tank to stabilize unitwhen pullingstarter ropehandle.Then

userecoil starter to start engine, as in-

structed inthe EngineOwner's Manual. Whenenginestarts, graduallymove choke lever (if so equipped) to "NO CHOKE", "CHOKEOFF"or "RUN" position.

9. Usethe "FAST"throttle speed setting

whentilling.

preventserious personalinjury or damageto equipment:

Page 13

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 leverin

the "OFF"or "STOP"position.

OPERATINGTHETILLER

Thefollowing operatinginstructions pro- videguidelines to using your tiller effec-

tively and safely. Besure to read Tilling

Tips & Techniquesinthis Section before

actually putting the tines into the soil. NOTE:Thisis atraditional "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. Besure that the

wheelsare intheWHEELDRIVEposition.

2. Movethe DepthRegulator Lever all the way down, so that the tines clearthe

ground. Usethis position when practicing

with thetiller and when traveling between tilling sites. Beforeactuallytilling, move the leverto the desireddepth setting (see

Tilling Tips & Techniques).

3. Start engineand allow it to warm up.

Thenput throttle in "FAST"setting.

4. For forwardmotion ofthe wheels and

tines:

(a) PullForwardClutch Bail (Fig.4-1) up against handlebar.Releasebailto stopfor-

ward motion of wheelsand tines. (b) Whentilling, relaxand letthe wheels

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

one hand,yet keepa light--but secure-- grip onthe 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 takes weight offthe wheels, reducestraction, andcauses the

tines to try and propel the tiller.

,_ WARNING: Donotpush

down onthe handlebarsto try

to makethetiller till more

deeply.This preventsthe wheelsfrom holdingthe tiller

backand canallow the tines to rapidly propelthe tiller forward,

which could resultin loss of control, property damage,or

personalinjury.

5. Forreversemotion ofthe wheelsand

tines (Model634A only):

(a) Lookbehindand exercisecaution when operating in reverse.Donot till while in

reverse. (b) Stopall forward motion. Lift handlebar

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

of ReverseClutch Control knob.

(b) Swingthe handlebarto theleft so the right wheeltakesa "step" backward.Next

swing the handlebarto the right so the left 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

thetinesareoutofthegroundandtheengine

andtinesarebalancedoverthe wheels(Fig. 4-4).

(c) With tiller balanced,pushsideways on 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:Useonehandtoguidefillerwhen movingforward.

Fig.4-3:Raisetinesoffgreundandlook

behindwhenmovinginreverse.

6. Tomovethe Model 630Cin reversefor short distances:

(a) Releaseforward ClutchBail. Thenlift handlebaruntiltines are off the ground.

Fig.4-5: Withtinesout ofgreund,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.

Page 14

TILLINGTIPS& TECHNIQUES

Tilling Depths

WAHNINL_: Before

tilling, contactyour telephoneor utilities

companyand inquire if

undergroundequipment or

lines are usedon your property. Donottill near

buriedelectric cables,

telephonelines, pipes or hoses.

• Whencultivating(breakingupsurfacesoil aroundplantsto destroyweeds,seeFig.4-9), adjustthe tinesto dig only 1"to 2" deep.Using

shallowtilling depthshelps preventinjury toplantswhose rootsoftengrowclosetothesurface.If needed,lift up onthe handlebarsslightly

to preventthe tinesfrom diggingtoo deeply.(Cultivatingon a regularbasisnotonly eliminatesweeds,it also loosensandaeratesthesoil for bettermoistureabsorptionandfaster plantgrowth.)

• Avoidpushingdown on thehandlebarsinanattemptto forcethe tiller to digdeeper.Doing sotakestheweightoff thepoweredwheels,causingthemto losetraction.Withoutthewheels

helpingto holdthe tiller back,thetineswill attemptto propelthetiller- oftencausingthetiller

to skip rapidlyacrosstheground. (Sometimes,slight downwardpressureonthe handlebars will helpgetthrougha particularlytoughsectionof sodorunbrokenground,butin mostcases

this won't benecessary.)

•Avoidtrying to digtoo deeplytoo quickly,especiallywhenbustingsodorwhentilling soilthat hasn'tbeentilledfor sometime.Useshallowdepthregulatorsettings(onlyan inchortwo

deep)for thefirst passesthroughthe soil.Witheachsucceedingpass,diganotherinchortwo deeper.(Wateringtheareaafew daysprior to tilling will maketilling easier,aswill lettingthe newlyworkedsoil setfor adayor two beforemakingafinal,deeptilling pass.)

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

that is bestfor yourgarden.

Setthe enginethrottleleverata speedto givetheengineadequatepowerandyetallowit to operateattheslowestpossiblespeed...atleast until you haveachievedthe maximumtilling depth youdesire.Fasterenginespeedsmaybedesirablewhenmakingfinal passesthrough

theseedbedor whencultivating.Selectionofthecorrectenginespeed,inrelationtothetilling depth,will ensureasufficientpowerlevelto do thejobwithout causingtheengineto labor.

Letthe Tiller DotheWork

Whiletilling, relaxandletthe wheelspullthe tiller alongwhile the tinesdo the digging.

Walkon theside that is not yet finished(to avoidmakingfootprints in thefreshlytilled

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

AvoidMakingFootprints

Wheneverpossible, walk on the untilled

sideof theunit to avoid makingfootprints in

your freshly tilled or cultivated soil. Foot-

prints causesoil compactionthat can ham- per root penetrationand contributeto soil

erosion. They can also "plant" unwanted

weed seeds back into the freshly tilled

ground.

Preparing Seedbeds

•Whenpreparingaseedbed,go overthe samepathtwiceinthefirst row,thenover- lapone-halfthetiller width ontherest of thepasses(seeFig.6). Whenfinishedin onedirection,makea secondpassata rightangle,as shownin Fig.4-7. Overlap

eachpassfor best results(invery hardground, it maytakethree or four passesto

thoroughlypulverizethesoil.)

• Ifthe gardensizewill 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 by squeezingit into a ball.If

itcompressestooeasily,it is toowet totill.

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 futureplant Fig.4-9

growth.

Page 15

PowerComposting

TILLINGTIPS& TECHNIQUES(CON'T)

Powercompostingsimply meanstilling underandburyingin thesoil allmanneroforganic mattersuchas crop residues,leaves,grassclippingsand covercrops. Thismaterialwillde- composeduringthe non-growingseasonandaddimportantnatural nutrientsto the soil.

Thefirst placeto beginis with cropresiduessuchas leftovervines,stalks,stemsandroots. Powercompostthesecropresiduesas soonas theyfinish bearing.Thesoonerthis is done,

thebetter,astendergreenmatteris easierto till under.Usethedeepestdepthregulatorset- ting possiblewithout causingthe engineto labororthetiller tojump ahead.

Standingcornstalksofreasonableheightcanbe powercomposted.Pushingover(butnot uprooting)cornstalkswill often makeiteasierto chopupthe stalks.Keepthe tines clearof

excessivetanglingby "fishtailing"or frequentlyusing reverse.Makeseveralpasses,then re- turna fewdays laterto finish off any remainingstubble.

Aftertilling undercrop residues,addmoreorganicmattersuchasleaves,grassclippingsand evenkitchenscraps.Whentilled intothesoil, this organicmatterwill decomposeandadd

evenmore importantnutrients to the soil. Afterpowercomposting,you maywant to planta "greenmanure"covercropto protectthe soilduringtheoff-season.Yousimplygrowa

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

WAHNIN(3: Whenpower

composting, do not keepthe

DepthRegulator Leverat a deepsetting ifthe tiller jumps

or bucks. If jumping or bucking occurs,

movethe Depth Regulator Leverdown to ashallow

setting andthen slowly

increasethetilling depthon laterpasses. Failureto followthis warning

could result in personalinjury.

TillingOn Slopes

Readthe followingrecommendationsbeforetilling onslopes:

Ifyou must gardenon a moderateslope,pleasefollowtwo very importantguidelines:

1.Till onlyon moderateslopes,neveronsteepgroundwherefooting isdifficult (reviewsafe-

ty rulesin Section1:Safetyofthismanual).

2. We recommendtilling up anddown slopesratherthan terracing. Tillingvertically ona

slopeallows maximumplantingareaandalsoleavesroomfor cultivating. IMPORTANT:Whentilling onslopes,besurethecorrectoil levelis maintainedin theengine

(checkeveryone-half hour of operation).The inclineof the slopewill causethe oilto slant awayfrom its normallevelandthiscanstarveenginepartsof requiredlubrication.Keepthe

motor oil levelatthefull pointatall times!

WAHNING: Do not operatetiller on aslopetoo

steepfor safe operation.Till slowly and besure you 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 avoid leavingfootprints or wheelmarks.

• Whentilling vertically,tryto makethefirst passuphillasthetiller digsmoredeeplygoinguphillthanitdoesdownhill.Insoftsoil or weeds, youmayhaveto lift the handlebarsslightlywhilegoinguphill.Whengoingdownhill,overlapthefirst passby aboutone-halfthe width of

thetiller. TillingAcrossSlopes Without UsingTerraces(HorizontalTilling)

• If verticalor terracinggardeningaren'tpracticalfor you,thenyoucantill laterallyacrossa slope.We don'trecommendthis methodasit cancreateunsurefootingand invitessoil erosion.

• As interracegardening,startatthetopoftheslopeandoverlapthefirst passbyhalfthe width ofthetiller.Foraddedstabilityof thetiller, alwayskeepthe uphillwheelinthe soft, newlytilledsoil.

TerraceGardening

• Whena slopeis too steepor too shortfor verticaltilling, it maybenecessaryto till acrossthe slopeand createterracedrows.Terraces arerows thatarecutinto the sideof a slope,creatinga narrow,butflat areaon whichto plant.

• Ona long slope,youcan makeseveralterraces,onebelowthe other.

• Terracesshouldbeonly2-t0-3 feetwide.Diggingtoo far into theside ofthe slopewill exposepoor subsoilthat isunproductivefor plants.

Page 16

TILLINGTIPS& TECHNIQUES(CON'T)

TerraceGardening(continued)

• Tocreateaterrace,startatthe topof theslopeandwork down.Gobackandforth acrossthe first row asshownin Fig.4-10.

• Eachsucceedinglowerterraceis startedbywalking belowtheterraceyou'repre- paring.Foraddedstabilityofthetiller,alwayskeepthe uphillwheelinthesoft,new-

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

washingdownhill. Italsoprovidesa walkingpathbetweenrows. _, REPEAT

Fig. 4-10

Clearingthe Tines

Thetines havea self-clearingactionwhich eliminatesmosttangling of debrisin thetines. However,occasionallydry grass,stringy stalksor toughvinesmaybe-

cometangled.Followtheseproceduresto helpavoidtangling and to cleanthe tines,if necessary.

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

dercrop residuesor covercropswhiletheyaregreen,moist andtender.

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

• Iftanglingoccurs,lift thetinesout ofthesoilandrunthetiller inreverse(if unit isequippedwithpoweredreverse)for afewfeet.Thisreversingactionshould un-

winda gooddealof debris.

LOADINGAND UNLOADING

THE TILLER

WARNING: Loadingand

unloading thetiller into a vehicleis potentially hazardous

andwedon't recommenddoing so unlessabsolutely necessary,

asthis could result inpersonal injury or property damage.

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

guidelinesgiven next.

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

• Thetiller istoo heavyand bulky to lift safelyby oneperson.Twoor more people

should share the load.

• Usesturdy ramps and manually (engine shut off) roll thetiller into andout of the vehicle.Twoor more peopleareneededto

do this.

• Theramps must bestrong enoughto support the combined weight of thetiller

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

should have side rails to guide the tiller along the ramps; andthey should havea

locking deviceto secure them to the vehicle.

• Thehandlersshouldwearsturdy footwear

that will helpto preventslipping.

• Positionthe loadingvehicle so that the ramp angle is asflat aspossible (the less incline to the ramp, the better). Turnthe vehicle'sengineoffandapply its parking

brake.

• Whengoing up ramps,stand in the normal operating position andpush the

• Itmaybenecessaryto removethedebrisby hand (a pocketknifewill helpyouto cut awaythe mate-

rial).Besure to stopthe engineanddisconnectthe sparkplugwirebeforeclearingthetinesbyhand.

WARNING: Beforeclearingthe

tines byhand,stoptheengine,allow all movingpartsto stop and

disconnectthespark plug wire. Removethe ignition keyon electric

start models.

Failureto follow this warning could result in personalinjury.

tiller aheadofyou. Havea person ateach sideto turn the wheels.

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

anyobstacles behind you. Position a per- son at eachwheel to control the speedof

thetiller. Nevergo down rampstiller-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),andto chockthe wheelsin placeafter the tiller is

in the vehicle.

• Afterloading the tiller, preventit from

rolling byengagingthe wheelsin the WHEELDRIVEposition. Chockthewheels with blocksandsecurelytie thetiller down.

Page 17

SECTION5: MAINTENANCE

WARNING: Before inspecting, cleaningor servicing

the machine, shut offengine,

wait for all moving partsto come

to acompletestop, disconnect

spark plug wire and movewire awayfrom sparkplug. Remove

ignition keyon electricstart 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 levelin transmission

Checktines for wear Checkair pressure in tires

(if unit haspneumatic tires) Servicespark plug

NOTES

1 Check after first 2 hours of break-in operation.

2 Before each use. 3 Every 5 operating hours.

4 Every 10 operating hours. 5 Every 30 operating hours,

6 Changemore frequently in dusty conditions.

7 - SeeEngineOwner'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

TILLERLUBRICATION

After every10operating hours, oil or greasethe lubrication points shown in

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

oil is suitable) and clean generalpurpose

grease(greasecontaininga metallubricant

is preferred, if available).

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

greaseto the wheelshaft.

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

• Removethetines andcleanthetine shaft (C,Fig.5-1). Usea file orsandpaperto gen-

tly removeany rust, burrs or rough spots

(especiallyaround holes inshaft). Apply

greaseto ends of shaft beforeinstalling tines.

• Oilthe threads on the handlebar height

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

Figure5-1

CHECKFOR OIL LEAKS

Beforeeachuse,checkthetiller for signsof

an oil leak-- usuallya dirty, oily accumu-

lation either on the unit or onthe floor.

A littleseepagearound 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 off

leakcan result in severetransmission damage!

If acover is leaking,check for loose

screws. If the screwsaretight, a new gasket or oil seal mayberequired.

If the leak isfrom around a shaft and oil

seal, the oil sealprobably needsto be

replaced.Seeyour authorized dealeror

contact the factory for serviceor advice.

IMPORTANT:Neveroperatethe tiller if

thetransmission islow onoil.Checkthe

oil levelafter every 30 hours of operationand wheneverthere is anyoil

leakage.

CHECKHARDWARE

Checkfor looseor missing hardwareaf-

ter every 10 operatinghoursandtighten

or replace(as needed)beforereusing

tiller

Besureto checkthe screwsunderneath

thetiller hoodthat securethe transmis- sioncoverandtheDepthRegulatorLever

to the transmission.

CHECKTIRE PRESSURE

(Models with pneumatictires)

Checkthe air pressurein bothtires. The

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

Keepbothtires equally inflatedto help prevent machinefrom pulling to one

side.

TRANSMISSION

GEAROIL SERVICE

Checkthe transmission gear oil level after every30hours of operationor wheneveryou notice anyoil leak.Oper- ating the tiller when thetransmission is

low on oil can result inseveredamage.

A. To Checkthe Transmission

GearOil Level:

1. Checkthe gear oil levelwhenthe

transmission is cool. Gearoil will expandin warm operatingtemperatures

and this expansionwill provideanincor-

rect oil level reading.

2. With the tiller onlevelground, pullthe

Depth Regulator Leverall the way up.

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

insidethe oil fill holeto locatethe main

driveshaft situated belowthe hole.

Page 18

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

moving partsto come to acomplete stop, disconnectspark plug wire and move wireawayfrom spark plug. Failureto follow these instructions canresult in serious personal injury or property

damage.

4. Thegear oil levelis correct if thegear oil isapproximately halfway upthe sideofthe

main drive shaft.

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

IMPORTANT:Donot operatethetiller if the gear oil level is low. Doingso will result in severedamageto the transmission com- ponents.

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

6. If adding only afew ounces of 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 useautomatic trans- mission fluid or motor oil inthe transmis- sion.

7. While checkingfrequently to avoid over- filling, slowly add gearoil into the oil fill

hole until it reachesthe halfway point on

the driveshaft.

8. Securely replacethe oil fill plug.

B. ToDrain theTransmissionGearOil:

Thetransmission gearoildoesnotneedto bechangedunless it hasbeencontaminat- ed with dirt, sand or metal particles.

1. Draingasolinefrom thefuel tankor run

the engine until thefuel tankis empty.See

"DANGER"statement below.

WARNING: Gasolineis

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

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

ingthe Uller's gasolinetank.

Do not allow open flames, sparks,

matchesorsmokingin the area.

Wipe away spills and pushtiller away

fromspilledfuel.

Use only an approvedfuel container

and store it safely out of the reach of children.

Do notstoregasolinein an area where

its vaporscould reach an openflame orspark,orwhere ignitionsourcesare present(suchas hot water and space heaters, furnaces, clothes dryers, stoves,electricmotors,etc.)

2. Drainthe oil from the engine.

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

4. Removethe left-side wheel.

5. Tilt the left-side wheel shaft into adrain panand allowthe gearoilto drainthrough

the top of the transmission.

6. Reinstallthe wheel.

7. Install anew gasket (do not reuseold gasket)and reinstall the transmission cov- er.

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

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

BOLOTINES

Thebolo tines will wear with useand should be inspected at the beginning of

eachtilling seasonand after every30 oper- ating hours. The tines can be replacedei- ther individually or as acomplete 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- ducedeffectivenesswhenchopping up andturning under organic matter.

B. Removin_nstalling aSingle Tine:

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

screws (A,Figure5-3), lock washers (E) and nuts (B)that attacha 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 asthe tiller moves forward.

C. Removin_nstalling aTineAssembly:

1. Atine assemblyconsists of eight tines mounted on atine holder.

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

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

usea rubber mallet to tap thetine assem- blyoutward off the shaft.

3. Beforereinstallingthetine 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 the tines will enter thesoft first whenthetillermovesforward.

Securethe tine assemblyto the tine shaft

usingthe screwand Iocknut

Page 19

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

moving partsto come to acomplete stop, disconnectspark plug wireandmovewireawayfrom spark plug. Failureto follow these instructions canresult in serious personal injury or property

damage.

FRONT/

FORWARD

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

CHECKINGANDADJUSTING FORWARDDRIVE BELT TENSION

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

causethe tinesandwheelsto slow down-- or stop completely-- eventhough the en-

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

ment whenthe clutch bail isin the Neutral (released)position.

• Checkbelt tensionafter the first two hours of break-inoperation andafter every

10 operatinghours.

• Atthe end of eachtilling season,check

the beltfor cracks,cuts or frayededges

and replaceit assoon as possible. ToCheckForwardBeltTension:

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

2. With the ForwardClutch Bailinan open (released)position, measureand notethe overalllength ofthecablespring (A,Figure 5-4) by measuringfrom the outermostcoil

to the outermost coil.

3. SqueezetheForwardClutchBailagainst

the handlebar(seeFigure5-4) and re-

measurethe length of the coils. Thebelt

tension is correct if this second measure-

ment isbetween1/6"-to- 3/16"longerthan

the first measurement.

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

tension is too tight.

5. Toadjustthe length of the spring: a. Releasethe Forward Clutch Bail.

Figure5-4: Tocheckforwardbe/t tension, taketwomeasurementsofthe overa///engthofthecoilsin thespring-- first withthedutch bail open,

thenwith thedutch bail closedagainstthe handlebar.

b Unthreadthe hexnut (C,Figure5-4)

halfway up the adjustmentscrew (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. Turnthe screwcounter-

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 List for ordering information. Use only afactory-authorized belt asan "over- the-counter" belt may not perform satis-

factorily. The procedure requires average mechanicalability andcommonly available

tools.

Page 20

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

moving partsto come to acomplete stop, disconnectspark plug wireandmovewireawayfrom spark plug. Failureto follow these instructions canresult in serious personal injury or property

damage.

FORWARDCLUTCH BAIL ADJUSTMENT

If the Forward Clutch Baildoesnot func-

tion properly,first checkthat the forward

drive belt is adjusted properly (see Check-

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

contact Troy-Bilt LLC or your authorized dealerfor serviceadvice.

CHECKINGANDADJUSTINGRE- VERSEDRIVEBELTTENSION

(Model634Aonly)

It is important to maintain correct tension on the reversedrive belt. Aloosebeltwill

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

Whenchecking belttension, alsocheckthe belt for cracks, cuts or frayededgesand replaceit as soonas possible.

• Checkbelt tensionafter the first two hours of break-inoperation andafter every

10 operatinghours.

ToCheckReverseBeltTension:

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

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

ward clutch cable) out of the way.

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

of the cablewire betweenthe endof the

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

ble wire is attached.

4. Thebelttension is idealif the cablewire lengthmeasuresbetween1/8"to 1/4".If it is

lessthan 1/8"(andif there isno reverseac- tion whenthe tiller is running),thenmake the following adjustments

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

actionfunctions properly.

5. Releasethe ReverseClutchControl knob.andthen unthreadthe inner jam nut

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

the bracket.

6. Preventthe innerjam nut (C) from turn-

ing and tighten the outer jam nut (D)

againstthe bracket. Preventthe outer jam

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

7. Measurethe gapby repeatingStep3.

Readjustas neededby repeating Steps 5

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 List for ordering information. Use

only a factory-authorized belt asan "over- the-counter" belt may not perform satis-

factorily. The procedure requires average 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 iscool beforeservicingthe engine.

AIRCLEANERSERVICE

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

eratingthe enginewith adirty, cloggedair filter can causepoor performanceand damageto the engine. Neveroperatethe enginewithout theair cleanerinstalled. In- spectand service the air cleanermore of- ten if operating in very dusty or dirty conditions. Referto the engineOwner's

Manualfor air cleanerservice intervalsand

instructions.

ENGINEOIL SERVICE

Checkthe engineoillevel before eachuse and after every five hours of continuous operation. Runningthe enginewhen it is low on oil will quickly ruin theengine.

It is recommendedthatyou changethe motor oilafterevery 10hours of operation and evensooner when operating inex- tremely dirty or dustyconditions. Referto the EngineOwner'sManualfor detailed

serviceinstructions.

A. ToChecktheEngineOil Level:

1. Parkthetiller ona levelareaandshut off the engine.

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

Page 21

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

moving partsto come to acomplete stop, disconnectspark plug wireandmovewireawayfrom spark plug. Failureto follow these instructions canresult in serious personal injury or property

damage.

3. Cleanaroundthe oil dipstick or oilfill

tube (whicheverapplies) to preventdirt

from falling into the crankcase.

4. Onengineswith anoil fill tube, remove

the fill capand add oil (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 bringthe levelupto theFULL mark.Wipe dipstick cleaneach time oil levelis checked.Donot overfill. Tighten dipstick securely.

B. ToChangethe EngineOil: Changethe engine oil as instructed inthe

EngineOwner's Manual.

SPARKPLUGSERVICE

Inspect andcleanor replacethespark plug after every 100 operating hours or annual- ly. Referto the EngineOwner'sManualfor spark plug serviceinstructions.

In some areas,local law requiresusing re- sistor spark plugs to suppress ignition sig- nals. If the 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 clean it according to the service intervals and in- structions in the EngineOwner'sManual.

THROTTLELEVERADJUSTMENT

If the engine doesnot respond to various

throttle lever settings, refer to the Engine

Owner'sManualfor serviceinformation or contact your localauthorizedengine deal-

er.

WARNING: Operators

shallnot tamper with theengine 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 atthefactory for best operatingspeed.Referto the En- gine Owner's Manualfor any adjustment information or seeyour authorizedengine

dealer. Thegovernor controls the maximum safe

operatingspeedand protects the engine andall moving partsfrom damagecaused by overspeeding. Donot tamperwith 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 andcheck for looseparts andhardware.

3. Protectthe engine and perform recom- mendedengine maintenanceby following the storage instructions found inthe En- gine Owner's Manual. Besure to protect the fuel lines,carburetorand fuel tank from gum deposits byremoving fuel orby

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

4. Store unit in aclean, dry area.

5. Neverstore thetiller with fuel inthe fuel tank in an enclosedareawhere gas fumes

could reach an open flame or spark, or whereignition sourcesare present (space

heaters,hot waterheaters,furnaces, etc.).

Page 22

moving partsto come to acomplete stop, disconnectspark plug wireandmovewireawayfrom

WARNING: Beforeinspecting, cleaningor servicing the machine,shut offengine, wait for all

spark plug. Failureto follow these instructions canresult in serious personal injury or property damage.

TROUBLESHOOTING

PROBLEM

Enginedoes not start

Enginerunspoorly.

Engineoverheats.

Enginedoesnotshotoff WheelsandTineswillnotturn

Tinesturn,butwheelsdon't,

WheelsTurn,butTinesDon't,

Poortillingperformance.

POSSIBLECAUSE

1. Spark plugwire disconnected

2. EngineThrottle 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 gappedspark plug.

8. Carburetor out of adjustment.

9. Misadjusted throttle control.

10. Dirt or water infuel tank.

1. Defective or incorrectly gappedspark plug.

2. Dirty air filter(s).

3. Carburetor out of adjustment.

4. Stale gasoline.

5. Dirt or water infuel tank.

6. Enginecooling system clogged.

1. Enginecooling system clogged.

2. Carburetor out of adjustment.

3. Oil level is low.

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. Tineholder 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 Engine Owner'sManual.

5. Drain fuel and add fresh fuel.

6. Clean or replace filter.

7. Inspect spark plug.

8. See Engine ServiceDealer.

9. See Engine ServiceDealer

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

2. Clean or replace (see EngineOwner's Manual).

3. See Engine ServiceDealer.

4. Replacewith fresh gasoline.

5. See Engine ServiceDealer.

6. Cleanair cooling system (see EngineOwner'sManual).

Cleanair cooling area (see Engine Owner's Manual).

2. See Engine ServiceDealer.

3. Checkoil level (see EngineOwner's Manual).

1. See Engine Owner's Manualor EngineService Dealer.

1. ReviewSections 3 and 4.

2. See "Checking DriveBelt Tension," Section 5.

3. Contact local dealer or the factory.

4. Tighten bolt.

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

2. Tighten bolt.

3. Contact local Dealer or the Factory.

1. Replacehardware.

2. Tighten bolt.

3. Contact local Dealer or 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.

Page 23

SECTION6:

MODELS630C,634A& 634KPARTSLIST

15_

:::::0

REF NO.

1 1185469

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

6 712-0324

7 712-0429 t

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

11 GW-55013-2 12 GW-55015

*4 on Mode1634A

t 6 onMode1634A and 634K

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 x3/4

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) For Mode1630C (B) For Mode1634A

and634K

DESCRIPTION

DepthRegulator Lever TineHoodAssembly (B) TineHoodAssembly (A) Bushing Spring, DepthRegulator Spacer HexHd. FlangeScrew,5/16-18 x 1 TrailShield Stop Bracket Transmission Assembly (B) Transmission Assembly (A) ReverseStop Arm (A) Split Spacer,.462x.328 x1.63 (A) Screw,5/16-18 x 2.25 (A) FlatWasher,.344 x.688 x.065 (A)

Page 24

MODELS630C,634A & 634K

14 18

Page 25

MODELS630C,634A& 634K

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,ReverseClutch(B)

UpperHandlebar Bail,ForwardClutch

CableAssembly,Forward Clutch

Screw,Self-Tapping,I/4-20 x 1/2 Screw,Hex,5/16-18 x3/4 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,Forward Clutch HexHd.Screw, 1/4-20 x 1-1/4

Screw,Hex,3/8-16 x 3/4 Screw,Hex,5/16-18 x1-1/2

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) For Model 630C (B) For Model 634A

and634K

Page 26

MODELS630C,634A & 634K

REF

NO.

1 2 3 4

(A) For Model 6300 (B) For Model 634A

and634K

* 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 DriveShaftBearing Cup Support Washer,Rear DriveShaft(B) DriveShaft(A) DriveShaftBearing Cone Shim,Rear BearingCap,.010"thick Shim,same asabove,except.030"thick Shim,same asabove,except.005"thick Shim,same asabove,except.062"thick Shim Set (Incl.the following shims:

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

Page 27

MODELS630C,634A& 634K

FRONT

(A) For Model 630C (B) For Model 634A

and634K

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, 1/4xl

Spacer Worm Gear,Wheel Shaft

Tiller Shaft Woodruff Key

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

.,J

Page 28

MODELS630C,634A & 634K

REF

NO.

PARTNO.

1 GW-9727 2 710-04049 3 736-0119 4 1918377 5 1916641 6 GW-50032 7 721-04030

DESCRIPTION

Plug,TransmissionOilFill 8 HexHd.FlangeScrew,5/16-18x5/8,Gr.5 9 LockWasher,5/16 10 RearCover,Transmission 11 FrontCover,Transmission 12 Gasket,HousingCover 13 OilSeal,DriveShaft 14

11"

* Included with transmission when purchased asan assembly only.

Removeand discard when installing thetransmission 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

Page 29

Hold Tines With Blunt End Toward You

MODELS630C,634A& 634K

FRONT

RIGHT-HANDTINE

NOTE:Identify Leftand Right sides of tiller by standing in operator position and facing direction of forward 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

(A) For Model 630C (B) For Model 634A

and634K

PART NO.

1915075

DESCRIPTION

HexHd. Screw,3/8-16 x 1,Grade5 Single Bolo Tine- Left Hand(A) (B) HexLock Nut, 3/8-16 Hex Hd.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.

DESCRIPTION

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

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

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

Page 30

MODELS630C,634A & 634K

Page 31

MODELS630C,634A& 634K

REF

NO.

1 2

5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

PARTNO.

736-0159 714-0139 1108841 1916531 619-04016 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

DESCRIPTION

FlatWasher, 5/16 (B) Key,3/16"x 2" Key,3/16"x 1.5" (O) Pulley, EngineDrive Pulley, EngineDrive(C) Transmission Pulley (B) Transmission Pulley (A) Pulley, ReverseIdler (B) Guard,Belts/Pulleys

ForwardDrive Belt ReverseDrive Belt (B)

BeltCover ReverseReturn Spring (B)

ReverseBelt Guide(B) ForwardBelt Guide

EngineBracket,Left EngineBracket,Right Bracket,Belt Cover

Shoulder Washer ReverseIdlerArm (B)

ForwardIdler Lever HexHd. Screw,5/16-24 x 1

HexHd. Screw,5/16-24 x5/8 HexHd. Screw,5/16-18 x 1 HexHd. Screw,5/16-18 x5/8

REF NO.

23 24 25 26 27 28 29 30 31

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

PARTNO.

710-0520 710-0599 710-3103 712-3000 712-3009 736-0119 736-3050 736-3090 710-0151 710-0459A 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

DESCRIPTION

Hex Hd.Screw, 3/8-16 x 1-1/2 Screw,Self-Tapping, 1/4-20x 1/2

Hex Hd.Screw, 5/16-18x 2 (B) Lock Nut,3/8-16

Lock Nut,5/16-18 (B) LockWasher, 5/16

FlatWasher, 3/8 FlatWasher

Rex Hd.Screw, 3/8-24 x 2.00 Hex Hd.Screw, 3/8-24 x 1.50 (C)

Shim (D) FlatWasher,.75 x 1.5x.125 (A} Support Washer ForwardReturn Spring Bracket,CableMounting ForwardIdler Pulley

Key,3/16"x 1" FlatWasher

BellevilleWasher Hex Hd.Screw, 5/16-24x 1.25 (A)

Hex Hd.Screw, 5/16-18x 1-1/2 (A) Hex Nut,5/16-18 (A) BellWasher,.340x.872 x.060 (A)

BellWasher,.396 x 1.140x.095 Spacer,.315x.750 x 375 Lg(A)

(A) For Model 6300 (B) For Model 634A and 634K

(D) For Model 634A Only

Page 32

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 634A, TUFFY 634K, TUFFY 630C, ProLine 634K, Super Bronco 634A Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual