Troy-Bilt 21A-675B766 User manual

Brand: Troy-Bilt

Model: 21A-675B766

Category: Mini tillers

Type: User manual

Operator's Manual

r®

Rear-tine Tiller

Model 675B

Model 675B Shown (bumper styles vary)

IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

WARNING: This unit isequippedwith an internal combustion engineand should notbe usedon or nearany unimproved forest-covered, brush-covered or

grass-covered land unless theengine's exhaust system isequipped with aspark arrester meeting applicable local or state laws(if any). If aspark arrester isused, 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

ResourcesCode). Other states may havesimilar laws. Federallaws apply on federal lands.A spark arrester for the muffler isavailable through your nearest engine

authorized service dealeror contactthe service department P.O.Box 361131 Cleveland,Ohio44136-0019.

TROY-BILT LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019

PRINTEDIN U.S.A. FORMNO. 769-00586B

9/13/04

TABLEOFCONTENTS

Content Page Content Page

Customer Support 2 Maintenance 16

Safety 3 Troubleshooting 23

Assembly 6 Parts List 24

Features and Controls 9 Warranty Back Cover

Operation 11

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.

OTRDV-BILT T,OV-BmLTLLC

P. O. BOX 361131

www.troybilt.com CLEVELAND,OH44136

330-558-7220

,. 1-800-520-552_

Copy the model number here:

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.

/;/ ,> ;'V }/ )

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

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

* ;,, #FOX }_ j,"

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

_ 7>,,,,

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

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

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 exhaust from this productcontains

chemicals known to the State of California to

cause cancer, birth defects or other reproduc-

tive harm.

SafetyAlertSymbol

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

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.

Recoil

Rope

Starter

Wheel GearLever

ReverseClutch Control_ I

ForwardClutch Lever

ForwardClutchLever

Depth

Regulator

Lever

Figl/re 1-1

CounterRotatingTines

Training

1. Carefullyreadthis Own-

er's Manual,the separate

EngineOwner's Manual,

andanyotherliteratureyou may receive.Be

thoroughly familiar with the controls and

the proper use ofthe tiller and its engine.

Know howto stop the unit and disengage

the controls quickly.

2. Neverallow childrento operatethetiller.

Neverallow adultsto operatethetiller with-

out proper instruction.

3. Keepthe area of operationclear of all

persons, particularly children and pets.

4. Keepin mind that the operatoror useris

responsiblefor accidents or hazardsoccur-

ring to other people,their property,and

themselves.

Preparation

1. Thoroughly inspect the areawherethe

tiller is to be usedand removeall foreign

objects.

2. Besure all control leversare released

andthe WheelGearLeverisin ENGAGEpo-

sition beforestarting the engine.

3. Donot operatethetiller without wearing

adequateouter garments.Avoid loosegar-

ments or jewelry that could getcaught in

moving parts.

4. Donotoperatethetillerwhenbarefootor

wearingsandals,sneakers,orlightfootwear.

Wearprotectivefootwearthat willimprove

footingonslipperysurfaces.

5. Donottillnearundergroundelectriccables,

telephonelines,pipesor hoses.If in doubt,

contactyourtelephoneor utilitycompany.

6.Warning:Handlefuelwith care;itis highly

flammableandits vaporsareexplosive.Take

thefollowingprecautions:

a. Storefuel in containers specifically

designedfor this purpose.

b.Thegascapshall neverberemovedor

fuel addedwhile the engine is run-

ning.Allow theengineto coolfor sev-

eral minutes beforeaddingfuel.

c. Keepmatches,cigarettes, cigars,

pipes, openflames, and sparksaway

from the fueltank and fuel container.

d. Fill fuel tank outdoors with extreme

care. Neverfill fueltank indoors. Use

a funnel or spout to prevent spillage.

e. Replaceall fueltank and container

caps securely.

f. If fuel isspilled, do notattemptto start

the engine,but movethe machine

awayfrom the area of spillageand

avoidcreating anysourceof ignition

until fuelvapors havedissipated.

7. Nevermakeadjustments whenengineis

running (unless recommendedby manu-

facturer).

Operation

1. Do not put hands or feet near or under

rotating parts.

2. Exerciseextremecautionwhen on or

crossing gravel drives,walks, or roads.

Stay alertfor hidden hazardsor traffic. Do

not carry passengers.

3. After striking a foreign object,stop the

engine,removethewire from the spark

plug wire and prevent it from touching the

spark plug,thoroughly inspectthe machine

for any damage,and repairthe damagebe-

fore restarting and operatingthe machine.

4. Exercisecautionto avoidslipping or fall-

ing.

5.Iftheunitshouldstarttovibrateabnormally,

stoptheengine,disconnectthesparkplug

wireandpreventitfromtouchingthespark

plug,andcheckimmediatelyforthecause.Vi-

brationisgenerallyawarningoftrouble.

6.Stoptheengine,disconnectthespark

plugwireandpreventitfromtouchingthe

sparkplugwheneveryouleavetheoperat-

ingposition,beforeuncloggingthetines,

orwhenmakinganyrepairs,adjustments

orinspections.

7.Takeallpossibleprecautionswhenleav-

ingthemachineunattended.Stoptheen-

gine.Disconnectsparkplugwireandmove

itawayfromthesparkplug.MoveWheel

GearLevertoENGAGE.

8.Beforecleaning,repairing,orinspect-

ing,stoptheengineandmakecertainall

movingpartshavestopped.Disconnect

thesparkplugwireandpreventitfrom

touchingthesparkplugtopreventacci-

dentalstarting.

9.Alwayskeepthetillertinehoodflap

down.

10.Neverusethetillerunlessproper

guards,plates,orothersafetyprotectivede-

vicesareinplace.

11.Donotrunengineinanenclosedarea.

Engineexhaustcontainscarbonmonoxide

gas,adeadlypoisonthatisodorless,col-

orless,andtasteless.

12.Keepchildrenandpetsaway.

13. Neveroperate thetiller underengine

powerifthe WheelGearLever is in DIS-

ENGAGE(FREEWHEEL).In this position,

thewheels will notholdthe tiller back

andthe revolvingtines could propelthe

tiller rapidlybackward,possiblycausing

lossofcontrol. Always move theWheel

GearLeverto ENGAGEbeforestarting the

engine or engagingthe tines4Nheelswith

the Forward Clutchor the ReverseClutch.

14. Beawarethat the tiller may unexpect-

edly bounceupward orjump backward if

the tines should strike extremely hard

packedsoil, frozen ground, or buried ob-

stacleslike largestones, roots, or stumps.

If in doubt aboutthe tilling conditions, al-

ways usethe following operating precau-

tions to assist you in maintaining control

of thetiller:

a. Walk behindandtoone sideof the

tiller, usingone handon thehan-

dlebars.Relax yourarm, butusea

securehandgrip.

b. Useslowerenginespeeds.

c. Clear thetilling areaof all large

stones,rootsand other debris.

d. Avoidusingdownwardpressureon

handlebars.If needbe, useslight

upwardpressureto keepthe tines

from diggingtoo deeply.

e. Beforecontacting hardpackedsoil

at the endof a row,reduceengine

speedand lift handlebarsto raise

tines out of thesoil.

f. In anemergency, stoptines and

wheels by releasingwhichever

ClutchLeverisengaged.Donotat-

tempttorestrainthe tiller.

15. Donot overloadthe tiller's capacityby

attempting to till too deeplyat too fast a

rate.

16. Neveroperatethetiller at high trans-

port speedson slippery surfaces. Lookbe-

hind and usecarewhen backingup.

17. Donot operatethetiller on aslopethat

is too steep for safety.When onslopes,

slow down and makesure you havegood

footing. Neverpermit thetiller to freewheel

down slopes.

18. Neverallow bystanders nearthe unit.

19. Onlyuseattachmentsand accessories

that are approved byGardenWay Inc.

20. Usetiller attachmentsand accessories

when recommended.

21. Neveroperatethetiller withoutgoodvis-

ibility or light.

22. Neveroperatethetillerifyouaretired,or

undertheinfluenceofalcohol,drugsormedi-

cation.

23.Operatorsshallnottamperwiththeengine-

governorsettingsonthemachine;thegovernor

controlsthemaximumsafeoperatingspeedto

protecttheengineandallmovingpartsfrom

damagecausedbyoverspeed.Authorizedser-

viceshallbesoughtifa problemexists.

24. Donottouchenginepartswhichmaybe

hotfromoperation.Letpartscooldown

25.Pleaseremember:Youcanalwaysstopthe

tinesandwheelsbyreleasingtheForward

ClutchLeverortheReverseClutchControl

(whicheverleveryouhaveengaged)orbymov-

ingtheThrottleControlLeverto STOP.

26.Toloador unloadthetiller,seetheinstruc-

tionsinSection4 ofthis Manual.

27. Useextremecautionwhenreversingor

pullingthemachinetowardsyou.

28.Starttheenginecarefullyaccordingtoin-

structionsandwithfeetwellawayfromthe

tines.

29.Neverpickupor carryamachinewhilethe

engineisrunning.

MaintenanceandStorage

1. Keepthe tiller, attachmentsand acces-

sories in safeworking condition.

2. Checkall nuts, bolts, and screws at fre-

quent intervalsfor proper tightness to be

surethe equipmentis in safeworking con-

dition.

3. Neverstorethetillerwithfuelinthefueltank

insideabuildingwhereignitionsourcesare

presentsuchashotwaterandspaceheaters,

furnaces,clothesdryers,stoves,electricmo-

tors,etc.).Allowenginetocoolbeforestoringin

anyenclosure.

4.Toreducethechancesofafirehazard,keep

theenginefreeofgrass,leaves,or excessive

grease.

5. Storegasolineina cool, well-ventilated

area,safelyawayfrom anyspark- or flame-

producingequipment.Storegasolinein an

approvedcontainer,safelyawayfrom the

reachofchildren.

6. Referto the storageinstructions in the

Maintenancesectionofthis Manualandthe

separateEngineOwner'sManualfor in-

structions ifthe tiller is to bestored foran

extendedperiod.

7. Neverperform maintenancewhiletheen-

gine is running orthe spark plug wire is

connected,exceptwhenspecificallyin-

structedto do so.

8. If thefueltank hasto be drained,dothis

outdoors.

SafetyDecals

Foryour safetyand the safety of others,

various safety and operationaldecalsare

located on your unit (seeFigure 1-2 be-

low).

Keepthe decalscleanand legible atall

times. Contactyour localservice dealeror

the factory for replacementsif anydecals

are damagedor missing.

Referto the Parts List in this manualfor

decallocations, partnumbersand ordering

instructions.

TineWarning

StartingStabilization

Message(onengine)

ControlDescription

(onControlPanel)

WarningMessages

(onlinehood)

HotSurfacesMovingBelts

Warning(onbeltcover)

Figure 1-2:LocationofSafetyand OperatingDecals

OperatingSymbols

Varioussymbds(shownhere,withworddescriptions)

mayheusedon'dle'dllerandengine.

NOTE:Yourunitmaynothaveallof_esymbds.

FAST SLOW STOP

I-.-I I,I

CHOKE CHOKE

ON OFF

TILLERDIRECTION

REVERSE

<--

LEVERDIRECTION

ROTATINGTINES

TO AVOID SERIOUS INJURY:

* READTHEOPERATOR'SMANUAL.

* KNOWLOCATIONSANDFUNCTIONSOFALLCONTROLS.

* KEEPALLSAFETYDEVICESANDSHIELDSIN PLACEAND WORKING.

. NEVERALLOWCHILDRENORUNINSTRUCTEDADULTSTO OPERATETILLER.

° SHUTOFFENGINEAND DISCONNECTSPARKPLUGWIREBEFOREMANUALLYUN-

CLOGGINGTINESORMAKINGREPAIRS.

. KEEPBYSTANDERSAWAYFROM MACHINE.

. KEEPAWAYFROMROTATINGPARTS.

° USEEXTREMECAUTIONWHEN REVERSINGOR PULLINGTHEMACHINETOWARDS

YOU.

SECTION2: ASSEMBLY

WARNING: Toprevent

personalinjury or property

damage,do notstartthe engine

until all assemblysteps are

completeandyou haveread

and understandthesafetyand

operatinginstructions in this

Manual.

Introduction

Carefullyfollow these assemblysteps to

correctly prepareyour tiller for use. It is

recommendedthatyou readthis Sectionin

its entirety beforebeginning assembly.

Inspect unit

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 and mailacopyto the carrierwithin 15

days after the unit has beendelivered.

Contact usatthe factory ifyou needassis-

tance in this matter.

Unpackingand Assembly

Instructions

STEP1:UNPACKINGINSTRUCTIONS

1. Removeanycard-board inserts and

packaging materialfrom the carton. Re-

move anystaples from the bottom ofthe

carton and removethe carton.

2. Cutthe large,plastictie strapthat se-

curesthe transmissiontubeto theshipping

pallet. Leavethe handlebarson top ofthe

tiller to avoiddamaginganycables.

3. A bag with loosehardware is insidethe

literature envelope.Checkthe contents

againstthe following list and Figure2-1.

Contactyour local dealeror the factory if

anyitems aremissing or damaged.

NOTE:Forelectric start units, a second

hardwarebagis located nearthe battery.

4. Thetiller is heavy.Youshould not at-

tempt to removeit from the shipping plat-

form until instructed to do so in these

"Assembly" steps.

HardwareBagPartsList

Ref. Qty. Description

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

2 1 KeyedWasher

3 1 WheelGearLeverKnob

4 1 Height Adjustment Flange

(SeeFigure2-2)

5 2 3/8" FlatWasher

6 2 #10 Lockwasher

7 2 3/8"-16Nylock Lock Nut

8 2 #10-32 x 1/2" Rnd HdScrew

9 2 #10-32 Nut

18 1 CotterPin (not used)

11 4 PlasticTieStrap (2 not used)

Tools/ MaterialsNeeded

forAssembly

(1) 3/8" open-endwrench*

(2) 9/16" open-endwrench*

(1) 7/8" open-endwrench"

(1) Scissors (totrim plasticties)

(1) Ruler

(1) Smallboard(totapplastic knobon

lever)

(1) Tirepressuregauge

(1) Cleanoil funnel

(1) Clean,high-quality motor oil. Referto

the separateEngineOwner'sManual

for motor oil specificationsand quan-

tity required.

* Adjustable wrenchesmay be used.

IMPORTANT:Motoroil must beaddedto

the enginecrankcasebeforetheengineis

started. Followthe instructions inthis

"Assembly" Sectionand in the separate

EngineOwner'sManual.

NOTE: LEFT and RIGHT sides of the

tiller are as viewed from the

operator's position behind the

handlebars.

STEP2: ATTACHHANDLEBARS

1. Cutthe large, plastic cableties that se-

curethe handlebarendsto the handlebar

mounting tabs onthe transmission top

cover.

2. Gentlylift handlebar(do not overstretch

attachedcable)and placehandlebarcross-

brace(B, Figure2-3) in front of curved

height adjustment bracket (C).

O@ 8

7 10 11

Figure2-1:Loosehardware(shownin re-

ducedsize).

Figure2-2: Handlebarheightadjustmentuses

the flangeheadscrew.

Figure2-3:Forwardclutchcontrolcablenot

shownforclarity.

3. Withtheforwardclutchcable (N, Fig-

ure 2-4) ontheinside ofhandlebar,posi-

tion the handlebarends on the outside of

thetwo mounting tabs (M, Figure2-3) on

thetransmission top cover.

NOTE:Thecurvedhandlebarheightadjust-

ment bracket appearsasshown in C, Fig-

ure 2-3 for non-electric start units. For

electricstart units,the bracketisloosened

and moved to one side.

4. Loosely attachthe handlebarsto the

mounting tabs with two 3/8-16 x 1"screws

(headsof screws goto insideoftabs), 3/8"

flat washersand 3/8"-16 lock nuts (O,Fig-

ure2-4).

Figure2-4: Attachhandlebars.

5. Move the handlebarsup or downto

align thethreaded holein the cross-brace

with one of thefour slots in the curved

heightadjustmentbracket.Placethe keyed

washer (E,Figure2-3) on the flange head

height adjustment screw (F)with the

raised keys(edges)of the washer facing

down.

6. Threadthe height adjustment screw (F,

Figure2-3) into the hole in the handlebar

cross-brace, making surethat the raised

keysonthe washer fit intothe slot on the

height adjustment bracket. Tightenthe

height adjustment screw securely. Next,

securelytighten thetwo screws and nuts

in the ends of the handlebar (M, Figure2-

3).

7. Toremovethe tiller from its shipping

platform, first carefully unwrap the wheel

gearcable(with attachedlever- seeFigure

2-5) from around the chassis. Movethe

WheelGearLever(G) to the DISENGAGE

position--this allows the wheelsto rotate

freely. Usethe handlebarsto roll the tiller

off the platform.

Figure2-5:CarefullyunwrapWheelGearLe-

verandmovelevertoDISENGAGE.

IMPORTANT:Usethe DISENGAGE

position onlywhenthe engineis not

running. Beforestartingthe engine,the

WheelGear Levermust be placedin the

ENGAGEposition (seeSection3 for

details).

STEP3: ATTACHREVERSECLUTCH

CONTROLCABLE

1. Carefullyunwrapthe reverseclutch

control cable(H, Figure2-6) from its ship-

ping position and route it upalong the in-

sideedgeofthe left sidehandlebar.A knob

and large hexnut (I) is installed on theca-

ble.

Left Side ReverseClutch

Handlebar Control Knob

SlotinControlPanel

Figure2-6:Attachreverseclutchcontrolas-

semblytodotted holeinhandlebarpanel.

2. Insert the cableinto the slot in the con-

trol paneland fit the threadedassembly

intothe holein theslot (seeFigure2-6). Be

surethat the flat sideof the threadedas-

sembly is aligned with theflat side of the

hole.Slidethe hexnut (I) upthecableand

tighten it securely.

3. Testthe function ofthe reverseclutch

control cableby pulling the knob out and

releasingit. Theknob should return to its

neutral position againstthe taperedbush-

ing. If it doesn't, contact your local dealer

or the factory for technical.

STEP4: ATTACHFORWARDCLUTCH

CONTROLCABLE

1. Removeany fasteners (rubber bands,

tape, etc.) that may securethe Forward

ClutchControllevers (J, Figure2-7) to the

handlebar.

Figure2-7: Forward ClutchControllevers(J).

Forwarddutch controllinkage(K).

2. Theforward clutch control cable (with

attachedspring) is hanging loosely near

the right-side wheel. Beingcareful not to

kink or stretch the cable,insert the z-con-

nector (L, Figure2-8 - end of the spring)

into the hole atthe end ofthe forward

clutch control linkage(K, Figure2-7).

Figure2-8

3. Attachthecableadjuster(A,Figure2-9)

to the bracketon the right-side handlebar.

Usetwo 1/2"wrenchesto loosenthetwo

jam nuts (B)just enoughto slidethe cable

adjuster ontothe bracket.Then handtight-

enthe jam nuts.

NOTE: The Wheel Gear Lever will be

installed later in this procedure.

Figure2-9

CAUTION: Incorrect cable

adjustment couldcausethe

wheelsandtines to rotate

unexpectedly.Follow

adjustment procedures

carefully. Failureto do socould

result in personalinjury or

property damage.

4. Checkfor correct spring/caNetension

as instructed in Section 5, Checkingand

Adjusting Forward Clutch Belt Tension.

5. Whentension iscorrect, tighten thetwo

jam nuts (B) securely.

STEP5: CHECKTRANSMISSIONGEAR

OILLEVEL

Thetransmission was filledwith gearoil at

the factory. However,besure to checkthe

oil levelatthis time to makecertain it is

correct.

IMPORTANT:Donot operatethe tiller if

the gearoil levelislow. Doingso will result

in severedamagetothe transmission

components.

1. With the tiller on levelground, pull the

Depth Regulator Lever(R,Figure2-13)

backand then slide it to the second notch

from thetop. NOTE:Ifthe leverdoes not

move, lift thetine hood flapand lookfor a

plastic tie securing the lever in place. Cut

and removethe tie.

2. Removethe oil levelcheckplug (M, Fig-

ure 2-10) on the left-side of thetransmis-

sion. (Dueto dried paint on the plug

threads, it may require some force to re-

move the plug the first time.) Thegear oil

leveliscorrect if oilstarts to flow out ofthe

holeastheplug isremoved.Ifso, securely

reinstall the plug.

Figure2-10: Gear oil level checkplug.

3. If oil doesnotflow from the checkhole,

add oil asfollows:

Figure2-11:Addinggearoil.

NOTE: Do not use automatic

transmission fluid or motor oil in the

transmission.

(a) Cleanareaaround the fill hole (N, Fig-

ure 2-11) and unscrewgear oil fill plug.

(b) If adding onlya few ounces ofgear oil,

useAPIratedGL-4or GL-5gearoil having

a viscosity of SAE140, SAE85W-140 or

SAE80W-90. If refilling an emptytrans-

mission, useonly GL-4gear oil havinga

viscosity of SAE85W-140 or SAE140.

oil until it flows from the gear oil level

checkhole (N, Figure2-11).

(d) Reinstalland tighten securelythe gear

oil fill plug (M, Figure2-10).

STEP6: ATTACHWHEELGEARLEVER

1. InserttheWheelGearLever(P,Figure2-

12) upthrough theslotin thecontrol panel

that is labeled"WHEELGEAR."

2. Insert two #10-32 x 1/2"round head

screws downthrough the'%" marksonthe

control paneldecalandsecurelyattachthe

wheelgearmounting bracket usingtwo

#10 lock washersand#10-32 nuts.

3. Usea small board or rubber malletto

tap the WheelGearLeverknob securely

onto the lever (R, Figure2-13).

4. Securethe wheelgearcableand the re-

verseclutch control cableto the left-side

handlebarwith two plastic ties (S, Figure

2-13) locatedabouttwo feetapart.Snip off

anyexcesstie length.

STEP7: CHECKAIR

Usea tire pressuregauge to checkthe air

pressure in both tires. Deflateor inflate

both tires equallyto between15 PSiand

20 PSI. Besure that bothtires are inflated

equallyor the unit will pull to one side.

Figure2-12: AttachWheel Gear Lever.

Figure2-13:Attachwheelgearcableandre-

verseclutchcablewithcableties(S).

STEP8: CHECKHARDWARE

Inspectthe hardwareonthe unit andtight-

en anyloose screws, boltsand nuts.

SECTION3: FEATURESANDCONTROLS

_ ARNING: Before

operatingyour machine,

carefully readand understand

all safety,controls and

operatinginstructions in this

Manual,the separateEngine

Owner's Manual,andon the

decalson the machine.Failure

to follow these instructions can

result in serious personal

injury.

Tiller Features

This section describesthe locationand

function ofthecontrols on yourtiller.Refer

to Section4: Operationfor detailedoperat-

ing instructions.

Practice usingthesecontrols, with the en-

gine shut off, until you understandthe op-

eration ofthe controls and feelconfident

with eachof them.

IMPORTANT:Referto theseparateengine

manufacturer's EngineOwner's Manual

for information about thecontrols onthe

engine.

Wheel Gear Lever

This lever (A,Figure3-1) hastwo posi-

tions: ENGAGEand DISENGAGE.

In the ENGAGEposition, the wheelswill

start turning wheneither the Forward

Clutch or the ReverseClutch is engaged.

NOTE: The tines will also start turning

when either clutch is engaged.

,_ DANGER: Neverplacethe

WheelGearLeverin

DISENGAGE(Freewheel)when

the engine is running.

HavingtheWheelGearLeverin

engagingthetines_vheelswith

eithertheForward Clutchorthe

ReverseClutchcouldallow the

tines to propel thetiller rapidly

backward.Failureto follow this

instruction could result in

personalinjury or property

damage.

TheDISENGAGE(freewheel)position plac-

esthe wheelsin freewheeling modeto al-

low thewheelsto turn without starting the

engine.Usethe DISENGAGEposition only

whenthe engineis not running.

Figure3-1: Controlpanel.

Toshift to ENGAGE,gently (do not force)

move the leverforward while rolling the

tiller afew inches forward or backward.

(Moving thetiller helpsalign the transmis-

sionshift mechanism).Thewheelswill not

freewheelwhenthe leveris properly set in

the ENGAGEposition.

Toshift to DISENGAGE,move the lever

rearward, without rolling the tiller. The

wheels roll freely when the leveris proper-

ly set in the DISENGAGEposition.

ForwardClutchLevers

Twointerconnected levers (B, Figure3-1)

control engagementofthe forward driveto

the wheelsandpowerto the tines.

,_ WARNING: Neverengage

wheelsandtines with Forward

ClutchorReverseClutchunless

WheelGearLeveris in

ENGAGE.EngagingtheForward

Clutchor ReverseClutchwhen

wheelsare notengagedcould

allowthe tinesto rapidly propel

tiller backward.Failureto follow

this warning could result in

personalinjury or property

damage.

ToOperateForwardClutch:

1. Beforeengagingthe Forward Clutch,

puttheWheelGearLeverintothe ENGAGE

position (see"WARNING"above).

2. Lift and hold one or both leversagainst

the handlebargrips to engagethe wheels

andtines.

3. ReleaseBOTHleversto disengage

wheelsand tines. All forward motion will

stop (engine will continue to run).

IMPORTANT:TheForwardClutch Levers

areconnectedto amechanicalinterlock

that automaticallyshifts a separateWheel

GearLever(A,Figure3-1) into ENGAGE

position when eitherForwardClutch Lever

is pulled upagainstthe handlebars.This is

asafety featuredesignedto preventthe

wheelsfrom being in DISENGAGE

(freewheel)position whenthetines are

rotating.

Beforestartingthe engine,testthe

function ofthe mechanicalinterlock as

follows:

1. PutWheelGearLeverinto DISENGAGE

position and roll tiller backand forth a few

inches.Wheelsshould roll freely.

2. Without rolling the tiller, squeezeeither

Forward Clutch Leveragainst the handle-

bargrips. Asthe leversmove upward, the

mechanicalinterlock automatically moves

theWheel GearLeverforward into the EN-

GAGEposition (roll tiller backand forth a

few inches). If it does,the wheels will not

roll freely whenyou push and pull on the

handlebars.

3. The mechanicalinterlock works proper-

ly if it functions as describedin Step 2. If

themechanicalinterlockdoesnot function

properly, do not operatethe tiller until it

hasbeencorrected (seeyour authorized

dealeror contact the factory).

Reverse Clutch Control

This control (C,Figure3-1) engagesthe

reversedrive to the wheels and powerto

thetines. It is usedfor moving thetiller

short distances in a reversedirection.

ToOperateReverseClutch:

_ ARNING: Useextreme

caution whenreversingor

pulling the machinetowards

you. Look behindto avoid

obstacles.Neverattemptto till

in reverse.Failureto follow this

warningcould result in

personalinjury or property

damage.

1. Beforeengagingthe ReverseClutch,put

theWheel GearLeverinto ENGAGE.(see

"WARNING"at left).

2. Releasethe Forward ClutchLevers.

3.Tomovethetillerinreverse,firststopall

forwardmotion.Liftupthehandlebarsun-

tilthetinesclearthegroundandpullthe

ReverseClutchleverout.

Thewheelswillrotateinareversedirection

aslongastheleverisheldinREVERSE.To

stopthewheelsandtines,releasethelever

anditwillreturntoNEUTRAL.Neverat-

tempttotill whilemovinginreverse di-

rection.

DepthRegulatorLever

This lever (E,Figure3-2) controls the till-

ing depthof the tines. Pullthe lever

straight backand slide it up or downto en-

gagethe notched height settings.

Figure3-2:DepthRegulatorLever.

Thehighestnotch (leverall theway down)

raisesthe tines approximately1-1/2inches

off the ground. This "travel" position al-

lows the tiller to bemoved without the

tines digging into the ground.

Moving the leverup increasesthetilling

depth. Thelowest notchallows a tilling

depthof approximatelysix to eight inches,

dependingon soil conditions.

Forbest results, alwaysbegintilling at a

very shallow depthsetting and gradually

increasetilling depth.

,_ WARNING: PlaceDepth

Regulator Leverin "travel"

position beforestarting engine.

This position preventsthetines

from touching the ground until

you are readyto begintilling .Do

notattemptto till too deeplytoo

quickly. Graduallywork down

to deepertilling depths.Failure

to follow this warning could result in

personalinjury or property damage.

Handlebar HeightAdjustment

Handlebarheightis adjustableto four dif-

ferent settings. Whensetting the height,

keepin mindthat the handlebarswill be

lower whenthe tines areengagedin the

soil.

WARNING: Wheneverthe

handlebarheight ischanged,

the Forward Clutchshift

mechanism must be

readjusted.Beforeadjusting or

checkingthe ForwardClutch

mechanism,shutengine off,

disconnect spark plug wire and

prevent itfrom touching spark

plug. Failureto follow this

warningcould causethe

ForwardClutch mechanismto

operateimproperly which could

result in personalinjury or

property damage.

ToAdjustHandlebarHeight:

1. Stopengine,wait for all parts to stop

moving andthen disconnectspark plug

wire.

2. Loosenthetwo screws atlower endsof

handlebar.

3. Loosenheight adjustment screw (F,Fig-

ure 3-3) and pull keyedwasher (G)free

from slots in curved height adjustment

bracket.

Figure3-3: Handlebarheight adjustment.

4. Move handlebarsto a newslot setting

and insert the raisedkeyon the keyed

washer intothe slot. Tightenthe heightad-

justment screwsecurely.

5. Retightenthetwo screws atends of

handlebar.

EngineControls

IMPORTANT:Theengineis equipped with

eitherachoke control or a primer bulb.

Referto the EngineOwner's Manual(in-

cluded in tiller literature package)to iden-

tify which deviceis on your engine.

Recoil Starter

Therecoilstarter (H, Figure3-4) is usedto

"pull-start" theengine.SeeEngineStarting

and Stopping in Section4 for detaileden-

gine starting instructions.

Figure3-4: Recoil starter handle.

EngineThrottle Lever

Thethrottle lever(D,Figure3-1) is usedto

adjust enginespeedas wellasstop theen-

gine. Usethe STARTposition whenstart-

ing the engine. Pullthe leverall way back

tothe STOPposition to shut the engineoff.

SECTION3: OPERATION

WARNING: Before

operatingyour machine,

carefully readand understand

all safety (Section 1),controls

(Section 3) and operating

instructions (Section4) inthis

Manual,in the separateEngine

Owner's Manual,andon the

decalson the machine.Failure

to follow these instructions can

result in serious personal

injury.

Introduction

Readthis Section ofthe manualthorough-

ly beforeyou start the engine.Then,take

time to familiarizeyourself with the basic

operation of thetiller before using it. Find

an open, levelareaand practiceusing the

tiller controls without engagingthetines in

the soil (puttines in "travel" setting). Only

after you've becomecompletely familiar

with thetiller should you begin using it in

the garden.

Break-In Operation

Perform thefollowing maintenanceduring

the first hours of newoperation (seeSec-

tion 5: Maintenanceandthe maintenance

section of the EngineOwner'sManual).

1. Changemotor oil after first 2 hours of

newengineoperation.

2. Checkfor looseor missinghardwareon

unit. Tighten or replaceas needed.

3. Checktension on forward drive belt af-

ter first 2 hours of operation.

4. Checktransmission gear oil levelafter

first 2 hours of operation.

STARTING AND STOPPING ENGINE

Thefollowing steps describe how to start

and stop the engine. Donot engage the

tinesorwheels untilyouhavereadall of

theoperatinginstructionsinthisSection.

Alsoreviewthesafetyrulesin Section1:

Safetyand thetiller andenginecontrols

informationin Section3: Featuresand

Controls.

Pre-StartChecklist

Dothe following beforestarting the en-

gine.

1. Checkunit for looseor missing hard-

ware. Serviceas required.

ReverseClutchControl

ForwardClutchLever

WheelGearLever

RecoilRopeStarter

ForwardClutchLever

Depth

Regulator

Lever

CounterRotatingTines

Figure4-1

2. Checkmotor oil level.SeeEngineOwn-

er's Manual.

3. Checkthat all safety guards andcovers

are in place.

4. Checkair cleanerand engine cooling

system. SeeEngineOwner's Manual.

5. Selectaforward belt speedrange(see

ChangingBelt SpeedRangesin this Sec-

tion).

6. Fillthefueltank with gasolineaccording

to the directions inthe separate Engine

Owner's Manual.Follow all instructions

and safety rules carefully.

_k ANGER: GASOLINEIS

HIGHLYFLAMMABLEAND ITS

VAPORSAREEXPLOSIVE.

Followgasolinesafety rulesin

this manual (seeSection 1)and

in theseparateEngineOwner's

Manual.Failureto follow

gasolinesafety instructions can

result in serious personalinjury

and property damage.

7. Attachspark plug wire to spark plug.

Startingthe Engine

1. Completethe Pre-Start Check/isL

2. Putthe WheelGear Lever(Figure4-1)

into the ENGAGEposition.

_, AUTION: To helpprevent

serious personalinjury or

damageto equipment:

• Beforestartingengine,putWheelGear

LeverintoENGAGEposition.

• Beforestartingengine,putForward

ClutchLeversandReverseClutchControl

intoneutral(disengaged)positionsby

releasingcontrols.

• Neverrunengineindoorsor in an

enclosed,poorlyventilatedarea.Engine

exhaustcontainscarbonmonoxide,an

odorlessanddeadlygas.

• Avoidenginemufflerand nearbyareas.

Temperaturesintheseareasmayexceed

150oF.

3. Putthe Depth RegulatorLeverinto the

"travel" position (lever all the way down)

sothat the tines are clear ofthe ground.

4. Releaseall controls on the tiller.

5. If the engine is equipped with a fuel

shutoff valve,turn the valve to the open

position, asinstructed in the separateEn-

gine Owner's Manual.

_ WARNING: Keepaway

from rotating tines. Rotating

tines will causeinjury.

6. Movethe EngineThrottle Leverinto the

STARTposition.

7. Chokeor primethe engineas instructed

in the separateEngine Owner'sManual.

8. Checkbehind you to avoid contacting

anyobstacleswhen pulling the starter

rope. Placeone hand on the fuel tank to

stabilizethe unit and usethe recoil starter

to start the engine asinstructed in the En-

gine Owner's Manual.Whenthe engine

starts,graduallymovethe chokelever(on

enginesso equipped)to the NOCHOKE,

CHOKEOFFor RUNposition,whicheverap-

plies.

9. Usethe FASTthrottle speedsetting

whentilling.

StoppingtheEngine

1. Tostop thewheelsandtines, releasethe

Forward Clutchleversor the Reverse

Clutch Control (whichever control is in

use).

2. Tostop the engine,movethe Engine

Throttle Leverinto the STOPposition.

OperatingTiller

_ ARNING: Beforetilling,

contact yourtelephoneand

utilities companyto inquire if

underground linesareon your

property.

Thefollowing pagesprovideguidelinesto

using your tiller effectively and safelyin

various gardening applications. Besureto

read Tilling Tips & Techniquesin this Sec-

tion beforeyou actuallyput the tines into

the soil.

1. Followthe Pre-Start Checkl/ston the

previous page.BesurethattheWheelGear

Leveris in the ENGAGEposition.

2. Movethe DepthRegulatorLeverintothe

"travel" position (leverall the way down)

sothatthe tines clearthe ground. Usethis

position when practicingwith or transport-

ing the tiller. Whenyou are readyto begin

tilling, movethe Depth RegulatorLever

into the desired depthsetting (see Tilting

Tips & Techniques).

3. Startthe engineandallowitto warm up.

Whenwarm, movethethrottle control into

the FASTspeedsetting.

4. Forforward motion ofthe wheels and

powerto thetines:

(a) Pull up and hold the Forward Clutch

leversagainstthe handlebars.Tostop

the wheelsand tines, releaseboth le-

ve rs.

WARNING: Donot push

down onthe handlebarsto try

to makethetiller till more

deeply.This preventsthe

wheelsfrom holding the tiller

backand canallowthe tines to

rapidly propelthe tiller

backwardtoward the operator,

which could resultin loss of

control, property damage,or

personalinjury.

(b) Asthe tiller movesforward, relaxand

letthewheelspull theunitalongwhile

thetines dig.Walkbehind and a little

to onesideofthe tiller. Usealight but

securegrip with one handon thehan-

dlebars,but keepyour armloose. See

Figure4-2. Letthe tiller move ahead

atits ownpace.Donotpush downon

the handlebarsto try and force the

tiller to dig deeper- this takesweight

off the wheels,reducestraction, and

causesthetines to try andpropel the

tiller.

5. Forreverse motion ofthe wheelsand

tines:

(a) Look behind and exercisecaution

whenoperatingin reverse.Donot till

while in reverse.

(b) Stop all forward motion before re-

versing. Lift the handlebarswith one

hand untilthetines areoff the ground

andthen pull the ReverseClutchcon-

trol out (seeFigure4-3). Tostop re-

verse motion, let go of the Reverse

Clutch Control.

6. Toturn thetiller around:

(a) Practiceturning in a level,openarea.

Bevery carefulto keepyour feet and

legsawayfrom the tines.

(b) Tostart aturn, reducethe engine

speedandthen lift thehandlebarsun-

til the engine and tines are balanced

overthe wheels(Figure4-4).

ways onthe handlebarto move the

tiller in the direction of the turn (Fig-

ure 4-5). After completing the turn,

slowly lowerthe tines into the soil

and increasethe enginespeed.

Figure4-2:Useonehandtoguidetillerwhen

movingforward.

Figure4-3:Raisetinesoffgroundandlookbe-

hindwhenmovinginreverse.

Figure4-4: Findbalancepoint before turning.

Figure 4-5

StoppingtheTillerandEngine

1. Tostop the wheelsand tines, releasethe

Forward Clutchleversor the Reverse

Clutch Control (whichever is engaged).

2. Tostop the engine,movethe Engine

Throttle Leverto STOR

3. Ifthe engineisequippedwith a fuelshut-

off valve,closethevalveasinstructed inthe

EngineOwner's Manual.

_k WARNING: Before

changingbelt speeds,stop

engine,wait for all parts to stop

moving, letenginecooland

disconnect spark plug wire.

Failureto follow these

instructions could result in

personalinjury.

ChangingBelt RangeSpeeds

Thetiller hastwo forward beltrangespeeds

forthe wheelsandtines: LowandHigh.The

two rangesare obtained bymoving the for-

ward drive belt betweentwo sets of

grooves ontheforward drivepulleyandthe

transmission drive pulley.

NOTE:TheHighspeed beltrange is recom-

mendedfor all tilling purposes. The Low

speedbelt rangewill operatethetines and

wheels ataslower forward speed,which

may be suitable in some conditions (such

astilling in very hard ground).

ToChangefrom Lowto HighSpeed:

1. Stopthe engine,allow it to cool,and dis-

connectthe sparkplug wire.

2. MovetheWheelGearLeverintothe DIS-

ENGAGEposition.

3. Removethe two nuts from the plastic

belt cover on top of thetransmission and

removethe belt cover.

4. From beneaththe tiller, movethe for-

ward drivebelt out ofthe transmission low

speedgroove (B,Figure4-10) and into the

high speedgroove (D).

5. Pull upwardonthe belt to removeany

slackandslip the belt out ofthe engine

drive pulley low speedgroove (A, Figure4-

10) and into the high speedgroove (C).

NOTE:If thebelt isdifficult to move,pull on

theenginestart rope whilepushing thebelt

with your finger (engine drive pulleywill

turn as start rope is pulled).

6. Checkthatthe beltiswithinthe forward

beltguide (E,Figures4-10 and 4-11) on the

right-side of the unit and is within the for-

ward idler (F,Figure4-11) on the left-side.

Besurethatthe beltissituatedin thecenter

grooves (Cand D,Figure4-10) of the en-

gine (upper) and transmission (lower) pul-

leys.

7. Reinstallthe plastic beltcover andse-

cure it with thetwo nuts.

8. PutWheelGearLeverin ENGAGEand re-

connect spark plug wire beforeattempting

to start the engine.

ToChangefrom HightoLowSpeed:

1. Stopthe engine,allow itto cool, and dis-

connect the spark plug wire.

2. PutWheelGearLeverin DISENGAGE.

3. Removethetwo nuts from the plastic

beltcover on top ofthe transmission and

removethe belt cover.

4. From beneaththetiller, move the for-

ward drivebelt out ofthe transmission pul-

leyhighspeedgroove (D,Figure4-10) and

into the low speedgroove (B).

5. Pull upwardonthe belt to removeany

slack and slip the belt out ofthe engine

drivepulley highspeedgroove (C,Figure4-

1O)and into the low speedgroove (A).

NOTE:Ifthe beltis difficult to move,pull on

the enginestart rope whilepushingthe belt

with your finger (enginedrive pulley will

turn asstart rope is pulled).

6. Checkthat thebeltiswithin theforward

beltguide(E,Figures4-10 and4-11) onthe

right-side of the unit and is within the for-

ward idler (F,Figure4-11) on the left-side.

Besurethat the belt is situated in the rear

grooves (A and B,Figure4-10) of the en-

gine (upper) and transmission (lower) pul-

leys.

7. Reinstallthe plastic beltcover andse-

cure it with thetwo nuts.

8. Putthe WheelGearLeverin ENGAGE

and reconnectthe spark plug wire before

attempting to start the engine.

,c l

(Low) (High)

everse

Belt

(Low) (High)

Figure4-10:Right-sideviewofengineand

transmissionpulleys(engineisatright-sideof

view).

Figure4-11:Topviewofforwarddrivepulley

system(engineisatleft-sideofview).

TILLINGTIPS& TECHNIQUES

Tilling Depths

WAHNING: Before

tilling, contact your

telephoneorutilities

companyandinquire if

undergroundequipment or

lines are usedon your

property. Donottill near

buriedelectric cables,

telephonelines,pipesor

hoses.

This isaCRT(counter-rotatingtine)tiller. Asthewheelspullforward,the tinesrotateback-

ward. Thiscreatesan "uppercut"tine actionwhich digs deeply,uprootingsoil and weeds.

Don't overloadthe engine,but dig asdeeplyaspossibleon eachpass.Onlaterpasses,the

wheelsmaytendto spinin thesoftdirt. Helpthemalongbylifting upslightlyonthehandlebar

(onehand,palm up,works mosteasily).

Avoidthetemptationto pushdownonthehandlebarsinan attemptto force thetiller to dig

deeper.Doingsotakestheweightoff the poweredwheels,causingthemto losetraction.

Withoutthewheelsto holdthetillerback,thetineswill attemptto propelthetiller backward,

towardstheoperator.(Sometimes,slightdownwardpressureonthehandlebarswill helpget

througha particularlytoughsectionofsodor unbrokenground,butin mostcasesthiswon't

benecessary.)

• Whencultivating(breakingup surfacesoilaroundplantsto destroyweeds,seeFig.4-9), ajust thetinesto dig only 1"to 2"deep.Using

shallowtilling depthshelpspreventinjury to plantswhoseroots often growclose to the surface.If needed,lift up on the handlebars

slightlytopreventthetinesfrom diggingtoo deeply.(Cultivatingona regularbasisnotonlyeliminatesweeds,it alsoloosensandaerates

thesoilfor bettermoistureabsorptionandfasterplantgrowth.)Wateringthegardenareaafewdayspriorto tillingwill maketillingeasier,

aswill lettingthenewlyworkedsoil setfor a dayor two beforemakinga final, deeptilling pass.

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

that is bestfor yourgarden.

Settheenginethrottleleverataspeedto givetheengineadequatepowerandyetallowit tooperateattheslowestpossiblespeed...atleast

until youhaveachievedthe maximumtilling depthyoudesire.Fasterenginespeedsmaybe desirablewhenmakingfinal passesthrough

theseedbedor whencultivating.Selectionofthecorrectenginespeed,in relationtothetilling depth,will ensurea sufficientpowerlevelto

do thejobwithout causingtheenginetolabor.

Letthe Tiller Dothe Work

Whiletilling, relaxandletthewheelspullthe

tiller along while the tines do the digging.

Walkon thesidethat is notyet finished(to

avoidmakingfootprints in thefreshlytilled

soil) and lightly,but securelygrip the han-

dlebarwith just onehand.

AvoidMakingFootprints

Wheneverpossible, walk on the untilled

sideoftheunitto avoidmakingfootprints in

your freshly tilled or cultivated soil. Foot-

prints causesoil compactionthat canham-

per root penetrationand contributeto soil

erosion. They can also "plant" unwanted

weed seeds back into the freshly tilled

ground.

AvoidTilling Soggy,WetSoil

Tilling wet soil often resultsin large,hard

clumpsof soil thatcaninterferewith plant-

ing.If time permits,wait a dayor two after

heavyrainsto allow the soil to dry before

tilling. Testsoil bysqueezingit intoaball.If

itcompressestoo easily,it is toowetto till.

Preparing Seedbeds

•Whenpreparingaseedbed,gooverthesamepathtwiceinthefirst row,thenover-

lapone-halfthetiller width ontherestofthepasses(seeFig.6).Whenfinishedin

onedirection,makea secondpassata rightangle,as shownin Fig.4-7. Overlap

eachpassfor best results(invery hardground,it maytakethreeor four passesto

thoroughlypulverizethesoil.)

• If thegardensizewill not permitlengthwiseandthencrosswisetilling, thenover-

lapthefirst passesbyone-halfatiller

width,followedbysuccessivepasses ....................v .................................

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

Fig. 4-8

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.

TILLINGTIPS& TECHNIQUES(CON'T)

TillingOnSlopes

Readthe followingrecommendationsbeforetilling on slopes:

Ifyou mustgardenona moderateslope,pleasefollow two very importantguidelines:

1.Tillonlyon moderateslopes,neveronsteepgroundwherefooting isdifficult (reviewsafe-

ty rulesin Section1:Safetyof this manual).

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

slopeallows maximumplantingareaandalsoleavesroomfor cultivating.

IMPORTANT:Whentilling onslopes,besurethecorrectoillevelis maintainedin theengine

(checkeveryone-halfhourof operation).Theinclineof the slopewill causethe oil to slant

awayfrom its normallevelandthis canstarveenginepartsof requiredlubrication.Keepthe

motor oil levelatthefull pointatalltimes!

WAHNING: Donot

operatetiller on aslopetoo

steepfor safe operation.Till

slowly and besureyou have

good footing. Neverpermit

tiller to freewheeldown

slopes.Failureto follow this

warning could result in

personalinjury.

Tilling Upand DownSlopes(VerticalTilling)

• Tokeepsoil erosionto aminimum, besureto addenoughorganicmatterto thesoil sothat it hasgoodmoisture-holdingtextureandtry

to avoidleavingfootprints or wheelmarks.

• Whentilling vertically,tryto makethefirst passuphillasthetillerdigsmoredeeplygoing uphillthanitdoesdownhill.Insoftsoilor weeds,

youmayhaveto lift the handlebarsslightlywhilegoing uphill.Whengoingdownhill, overlapthefirst passby aboutone-halfthewidthof

thetiller.

Clearingthe Tines

Thetineshavea self-clearingactionwhicheliminatesmosttanglingofdebrisinthe

tines.However,occasionallydrygrass,stringystalksortoughvinesmaybecometan-

gled.Followtheseproceduresto helpavoidtanglingandto cleanthetines,if neces-

sary.

•Toreducetangling,setthedepthregulatordeepenoughtogetmaximum"chopping"

actionasthetines chopthe materialagainsttheground.Also,try to till undercrop

residuesorcovercropswhiletheyaregreen,moistandtender.

• Whiletilling,try swayingthehandlebarsfrom sideto side(about6"to 12").This

"fishtailing"actionoftenclearsthetinesofdebris.

• Iftanglingoccurs,lift thetinesoutofthesoilandrunthetiller in reverse(if unitis

equippedwith poweredreverse)forafewfeet.Thisreversingactionshouldunwinda

gooddealofdebris.

• It may benecessaryto removethe debris by hand(a

pocketknifewill helpyou to cut awaythe material).Be

sure to stop the engineanddisconnect the sparkplug

wire beforeclearing the tines by hand.

WARNING: Beforeclearing the

tines byhand,stop the engine,allowall

moving partsto stop and disconnect the

spark plug wire. Removethe ignition key

on electric start models.

Failureto follow this warning could result

in personalinjury.

Loading andUnloadingtheTiller

,_ WARNING: Loadingand

unloadingthetillerintoavehicleis

potentiallyhazardousandwedon't

recommenddoingsounless

absolutelynecessary,asthiscould

resultinpersonalinjuryor

propertydamage.

However,ifyoumustloador

unloadthetiller,followthe

guidelinesgivennext.

•Beforeloadingor unloading,stoptheengine,

waitfor allpartsto stopmoving,

disconnectthesparkplugwireandlettheen-

gineandmufflercool.

•Thetilleristooheavyandbulkytolift safely

byoneperson.Twoor morepeopleshould

sharetheload.

• Use sturdy ramps and manually (engineshut

off) roll the tiller into and out of the

vehicle. Two or more people areneededto do

this.

• Theramps must bestrong enoughto support

the combined weight of the tiller and any han-

dlers. Theramps should provide good traction

to prevent slipping; they shouldhave siderails

to guidethe tiller along the ramps; and they

should havealocking deviceto securethemto

the

vehicle.

• Thehandlersshouldwearsturdyfootwearthat

will helpto preventslipping.

• Positionthe loading vehicle sothat the ramp

angleis asflat as possible (the less inclineto

the ramp,the better). Turnthe

vehicle'sengineoff andapply its parkingbrake.

• When going up ramps, stand in the

normal operating position and push the tiller

ahead of you. Havea person at each sideto

turn the wheels.

• When going down ramps,walk backward

with the tiller following you. Keepalertfor any

obstacles behindyou. Positiona person at

eachwheel to control the speedof the tiller.

Nevergo down ramps tiller-first, asthe tiller

could tip forward.

• Placewooden blocks on the downhill side of

the wheels if you needto stop the tiller from

rolling down the ramp.Also, use the blocks to

temporarily keep the tiller in place onthe

ramps (if necessary),and to chockthe wheels

in place after the tiller is in the vehicle.

• After loadingthe tiller, prevent it from rolling

byengaging the wheels in the WHEELDRIVE

position. Chockthe wheelswith blocksand se-

curelytie the tiller down.

SECTION5: MAINTENANCE

,_ WARNING: Before

inspecting, cleaningor

servicingthe machine,shut off

engine,waitfor all moving

parts to cometo a complete

stop, disconnect sparkplug

wireandmove wire awayfrom

spark plug. Removeignition

key onelectric start models.

Failureto follow these

instructions can result in

serious personalinjury or

property damage.

MAINTENANCESCHEDULE

PROCEDURE NOTES

Chockmotor oil level 2, 3

Cleanengine 2, 7

Checkdrive belt tension 1,4

Checknuts and bolts 1,4

Change motor oil 1,4, 6

Lubricate tiller 4

Service foam pre-cleaner air filter 7

Service paper air filter 7

Checkgear oil level intransmission 1, 5

Checktines for wear 5

Checkair pressure in tires 5

Service spark plug 7

NOTES

1- After first 2 hours of break-in operation.

2 - Before each use.

3 - Every5 operating hours.

4 - Every 10operating hours.

5 - Every30 operating hours.

6 - Changemore frequently in dusty or dirty

conditions.

7 - SeeEngineOwner's Manual forservice

recommendations.

8 - Whichever time interval occurs first.

Tiller Lubrication

Proper lubrication of the tiller is an essen-

tial part of your maintenanceprogram. Af-

ter every 10operating hours, oil or grease

the lubrication points shown in Figures5-

1 and 5-2 and described below.

Usegeneral purpose lubricating oil (#30

weight motor oil is suitable) and a general

purpose grease(metallubricant is pre-

ferred, if available).

• Removewheelsandcleanwheelshaft (A,

Figure5-1). Apply athin coating of

greaseto shaft before reinstalling

wheels.

• Greaseback,front and sides of depth

regulator lever (B,Figure5-1).

D L

Figure5-1

• Removetines and cleantine shafts (C,

Figure5-1). Inspect for rust, rough

spotsorburrs (especiallyaroundholes).

Fileorsand smooth and coat ends of

shaft with grease.

• Oilthe threads on the handlebarheight

adjustment handle(D, Figure5-1).

• Oilthe outer casingsof theenginethrot-

tle cableandthe wheel gearcable (E,

Figure5-1). Allow oil to soak inandthen

wipe off anyexcess.

• Oilthe various pivot points (F,Figure5-

2) on the shifting mechanism,the han-

dlebar,and the idler arms (do not allow

oil on the belts or pulleys).

Figure5-2

Check Tire Air Pressure

Checktheair pressure inbothtires. Deflate

or inflate both tires evenlyto between 15

and 20 PSi (pounds per square inch). Be

surethatbothtires haveequalair pressure

or the unit will pull to one side.

Check For Oil Leaks

Beforeeachuse,checkyour tiller for signs

ofanoil leak--usually adirty, oilyaccumu-

lation either on the unit or onthe floor

whereit hasbeenparked.

A little seepagearound a cover or oil seal

is usually not a causefor alarm. However,

if the oil drips overnight,then immediate

attention is needed--ignoring a leakcan

result in severetransmission damage.

If a cover leaks,try tightening any loose

screws or bolts. If thefastenersaretight, a

newgasket or oil seal may be required. If

theleakisfrom arounda shaftand oil seal,

the oil sealprobably needsto be replaced.

Seeyour authorized dealeror contact the

factory for service or advice.

IMPORTANT:Neveroperatethetiller if the

transmission is low on oil. Checkthe oil

levelafterevery30 hours of operationand

wheneverthere is anyoil leakage.

CheckHardware

Checkthe unit for loose or missing hard-

wareafter every10 operatinghours. Loose

or missing hardwarecan leadto equip-

ment failure, poor performance, or oil

leaks.

Besureto checkthethree endcapmount-

ing screws locatedat the rear of thetrans-

mission (Figure5-3). Lift the tine flap to

servicethosescrews.

Figure5-3

EndCap

Transmission Gear Oil Service

Checkthetransmission gear oil levelafter

every 30 hours of operation or whenever

you notice anyoil leak.Operatingthe tiller

whenthetransmission is lowon oil canre-

sult in severe damage.

WARNING: Beforeinspecting, cleaningor servicing the machine,shut off engine,waitfor all

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

spark plug. Failureto follow these instructions canresultin serious personalinjury or property

damage.

A. ToCheckTransmission

1. Checkthe gear oil levelwhenthe trans-

mission is cool. Gearoil expands in warm

operatingtemperaturesand will result in

an incorrect oil level reading.

2. Tocheckthe gearoil level (andto add

oil, if necessary),referto STEP5."Check

GearOilLevelin Transmissionin Section2

of this manual.

D.ToDrainandRefilltheTransmission:

Thetransmission gear oil doesnotneedto

be changedunless it hasbeencontaminat-

ed with dirt, sand or metal particles.

1. Propupthe left sideofthe unitsecurely.

Removethe left-sidewheel by removing

the wheel mounting hardware.

2. Unscrewthe plastic gearoil fill plug

from thetop ofthe transmission

3. Placea clean pan belowthetransmis-

sion drain plug (Figure5-4) and remove

the drain plug. Theoil will startflowing out

of the drain hole (it may flow slowly, espe-

cially in cold temperatures).

Figure5-4: Remove drain plug to draintrans-

missiongear oil (also removeoil fill plug and

oil level checkplug).

4. Removethe transmission gear oil level

checkplugthat is locateda few inches

abovethe left-side wheelshaft (N, Figure

2-11).

5. Whenthe oil stops flowing, tilt the

transmission forward to drain oil from the

rear of the transmission.

6. After draining the oil, cleanthethreads

of the drain plug,apply a non-hardening,

removablegasketsealantto the threads,

and securelyreinstallthe drain plug.

7. Usea cleanfunnel to slowly add SAE

140 or SAE85W-140weight gearoil (with

an API rating of GL-4 only) to the trans-

mission. Thetransmission holdsapproxi-

mately3-1/4 pints (52-54 ounces).Tiltthe

tiller slightly backwardsto make surethe

gear oil reachesthe rear (tine) end of the

transmission. Stopaddinggearoil when it

beginsto flowfrom the oil levelcheckhole

on the side of the

ion.

8. Securely reinstallthe oil level check

plug.

9. Securelyreinstallthe gearoil fill plug on

top of the transmission.

10. Reinstallthe wheeland removethe

prop.

EngineOil Service

Checkthe motor oil level beforestarting

the engineeachdayandafter each5 hours

of continuous operation. Runningthe en-

gine whenthe oil level is low will quickly

ruin the engine.

It is recommendedthat you changethe

motor oil after every 10hours of operation

and evensoonerwhen operating in ex-

tremely dirty or dusty conditions.

A.ToCheckthe Motor0il Level:

1. Move thetiller to a levelareaand stop

the engine.

2. Levelthe engine by moving the Depth

Regulator Leverinto the secondnotch

from the top.

3. Cleantheareaaroundthe oil dipstick or

oil fill tube (whicheverapplies)to prevent

dirt from falling into the crankcase.

4. Onengineswith an oil fill tube, remove

the filler cap andadd oil (if required) until

it reachesthe top of thetube. Reinstallthe

filler cap.

5. Onengineswith a dipstick, removeit,

wipe it clean, and reinstall it finger4ight.

Removethe dipstick again and checkthe

reading.Addoil (if required) to bring the

levelto the FULLmark. Donot overfill.

B. ToChangetheMotor Oil:

Changethe motor oil asinstructed in the

separateEngineOwner's Manual.

Air CleanerService

Theengineair cleanerfilters dirt and dust

out ofthe air beforeit entersthe carbure-

tor. Operatingthe enginewith a dirty,

cloggedair filter can causepoor perfor-

manceand damageto the engine. Never

operatethe engine without the air cleaner

installed. Inspect andservicethe airclean-

er more often if operatingin very dusty or

dirty conditions.

Servicethe air cleanerasinstructed in the

separateEngineOwner's Manual.

SparkPlugService

inspectand cleanor replacethespark plug

after every 100 operating hours or annual-

ly. Cleanthe plug and set the gap as de-

scribed in the separateEngineOwner's

Manual.

Insomeareas,local law requiresusing re-

sistor spark plugsto suppress ignition sig-

nals. If the enginewas originally equipped

with a resistor spark plug, usethe same

type for replacement.

SparkArrester Screen Service

If the engine muffler is equipped with a

spark arresterscreen, removeand cleanit

accordingto thetime intervalsand instruc-

tions in the separateEngineOwner's Man-

ual.

EngineCleaning

Theenginemust be kept cleanto assure

smooth operationand to preventdamage

from overheating.Referto the separate

EngineOwner's Manualfor specific repair

and cleaninginstructions. All inspections

andservices must bedonewith the engine

shut off and coolto thetouch.

WARNING: Beforeinspecting, cleaningor servicing the machine,shut off engine,waitfor all

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

spark plug. Failureto follow these instructions canresultin serious personalinjury or property

damage.

Carburetor / Governor Adjustment

,_ WARNING: Operators

shallnottamper with theengine

governorsettings;thegovernor

controls the maximum safe

operatingspeedto protectthe

engineandall moving parts

from damagecausedby

overspeed.Authorizedservice

shallbesought if a problem

exists.

Thecarburetor wasadjusted atthefactory

for best operatingspeed. Referto the sep-

arateEngineOwner's Manualfor anyad-

justment information or seeyour

authorizedengine service dealer.

Thegovernor controls the maximum safe

operatingspeedand protects the engine

andall moving parts from damagecaused

by overspeeding.Donot tamper with the

enginegovernor settings. Seekauthorized

service if a problem exists.

Throttle Control Adjustment

If the engine doesnot respondto various

throttle leversettings, referto theseparate

EngineOwner's Manualfor service infor-

mation or contact your localauthorizeden-

gine service dealer.

Wheel Gear Cable Adjustment

WhentheWheel GearLeveris in DISEN-

GAGE,the wheels will roll freely (free-

wheel). Thewheelsshould not roll freely

whentheleveris in ENGAGE.If the wheels

roll freely whentheWheelGearLeveris in

ENGAGE,thewheelgearcable needsto be

adjustedas described below.

1. With the engine shut off and the spark

plug wire disconnected,put the Wheel

GearLeverin ENGAGE.

2. Loosenthetop adjustment nut

the wheelgearcablebracketlocatedonthe

left side rearof the transmission.

3. Pushwheelgearcable(B) downandroll

tiller slightly forward or backward until ec-

centric lever (C)engages(locks) wheels.

Holdcablein that position and tighten top

(A) and bottom (D)adjustment nuts.

Figure5-5: Wheelgear cableassembly.

4. MoveWheelGearLeverto ENGAGEand

DISENGAGEseveraltimes to checkadjust-

ment.Thewheelsshould not roll whenthe

lever is in ENGAGE,but theyshould roll

whenthe leveris in DISENGAGE.Readjust

the cableas required.

OffSeasonStorage

Whenthe tiller won't beusedfor extended

periods, prepareit for storage asfollows:

1. Cleanthetiller and engine.

2. Do routinetiller lubrication (see Tiller

Lubrication) andcheckfor loosepartsand

hardware(see CheckHardware).

3. Protectthe engine by performing the

enginestorageinstructions inthe separate

EngineOwner's Manual.

NOTE:Besureto protect thefuel lines,car-

buretor and fuel tank from gum deposits

by removing fuel or bytreating fuel with a

fuel stabilizer (follow engine manufactur-

er's recommendations).

4. Store unit in a clean, dry area.

5. Neverstore thetiller with fuel in thefuel

tank in an enclosedareawhere gasfumes

could reachanopen flame or spark, or

whereignition sourcesare present (space

heaters,hot waterheaters,furnaces,etc.).

Tines

Thetines will wearwith useandshould be

inspectedatthe beginning ofeachtilling

seasonandafter every30 operatinghours.

Tinescanbe replacedindividually or asa

completeset. Neverinspect orservicethe

tines unlessthe engineis stopped andthe

spark plug wire is disconnected.

NOTE: The tiller hood must be

removed to take off either a single tine

holder or individual tines. The hood is

secured to the transmission housing

with two rear bolts and two front bolts.

TineInspection

With use,the tines (Figure5-6) will be-

comeshorter,narrowerand pointed. Badly

worn tines will result in a loss oftilling

depthand reducedeffectivenesswhen

chopping up andturning under organic

matter.

RemovingandInstalling

Figure5-6:Fourfinegangs:twoperside.

1. Usea 9/16" socket,6"extension, a

ratchet, and a 9/16" box wrenchto loosen

the nut (A,Figure5-7) and bolt (B)that se-

curethe tine holderto the tine shaft.

2. Usea rubber mallet to tap thetine hold-

er loose.

3. Slidethetineassemblyoff thetineshaft.

4. RepeatSteps 1-through-3 aboveto re-

move the othertine assembly.

5. Installing the tine assembly is simply

the reverseof its removal. Besure thecut-

ting edgesface sothey will enterthe soil

first whenthetiller ismoving forward- this

meansthe cuttingedgesface towardthe

operator position.

First be sureto removeany rust, uneven

spots or burrs from the tine shaft, using

fine sandpaper.Thengreasethe tine shaft

before reinstalling the tine assemblies.

Tightenthe hardwarevery securely.

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

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

spark plug. Failureto follow these instructions canresultin serious personalinjury or property

damage.

SHAFT

ENGINE

I_ ENOTES CUTTING EDGE IOF TINE

Figure5-7:Completetineassemblies--holders, tinesandhardware.

_b ARNING: This is a CRT

(counter-rotating tine) tiller

and its tines must be mounted

in the direction shown in

Figure5-7. Failureto comply

could result in personalinjury

or property damage.

2. Wheninstalling individualtines, install

them inthe reverseorder from which they

were removed.Thetwo sets of inboard

tines are installed so one fine facesto-

wardthe transmission housing and the

otherfine faces awayfrom it. Thesingle

outboardtine on eachside facestoward

the transmission housing. Also be sure

the cutting edgesface sothey will enter

the soil first whenthetiller is moving for-

ward-this meansthecuttingedgesface

toward the operator position.

CheckingAndAdjustingTension

OnDriveBelts

Whilechecking belt tension, alsocheck

for cracks, cuts or frayed edges.A belt

that is in poor condition should be re-

placed.

_ ARNING: Followthe

beltadjustment instructions

carefully. An incorrect

adjustment could result in the

ForwardClutchmechanism

engagingtoo soon. This could

causeloss oftiller control and

result in personalinjury or

property damage.

Maintaining correct tension on the drive

belts is important to good tilling perfor-

manceand long belt life. A loose beltwill

slip on theengine and transmission pul-

leys and causethetines and wheelsto

slow down - or stop completely - even

though theengineis runningatfull speed.

A loose beltwill also result in premature

wearto the belt.

Thetension on a newforward drive belt

should be checkedafter the first two (2)

hours of operation.Thereafter,checkthe

tension after every ten (10) hours of

operation.

Thereversedrive belt, becauseit is used

infrequently, will not requirean initial ten-

sion adjustment until a significant num-

ber of operatinghours has passed.

ToCheckandAdjustTensionontheForward

DriveBelt:

1. Checkingfor correct belttension isthe

sameasthat described in item 5, Step 4:

AttachForwardClutchRod. Beforecheck-

ing, shut off the engine,disconnectthe

spark plug wire, andallow theengineand

muffler to cool down. If, after following

the adjustment procedures,you cannot

getthe correct gapon the forward clutch

rod adjustment bracket, you will needto

makea secondaryadjustment asde-

scribed next.

2. Disconnectthe ForwardClutchRod(A,

Figure5-9) from the swivel plate (B) by

removing the innermost hairpin cotter

(C).

3. Unthreadthe Forward ClutchRod(in a

counterclockwise direction as viewed

from the front ofthe unit) until oneor two

threads on the rod extendabovethe rect-

angular nut (D, Figure5-10) on the for-

ward clutch bracket.

4. Removethe belt cover.

5. Slip the forward drive belt (E,Figure

he engine-drivenforward drive pulleyby

pushing it off (awayfrom engine) with

your left handwhile pulling enginestarter

rope with your right hand.

6. Onthe left side ofthe unit (from oper-

ator's position) removethe hairpin cotter

from the clevis pin (F,Figure5-11) that

connectsthe forward idler arm (G)to the

forward adjustable link (H). Pushinward

on the forward idler arm (G) and remove

the clevis pin (F).

7. Thereare two holes in the forward ad-

justable link (H, Figure5-11). Pushin-

ward on the forward idler arm (G) and

install theclevis pin (F)through the inner

holein theforward adjustablelink (H)and

outthrough the singlehole in theforward

idler arm (G). Securethe clevis pin with

the hairpin cotter.

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

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

spark plug. Failureto follow these instructions canresultin serious personalinjury or property

damage.

C (E) Removebelt

Figure5-9: Disconnect ForwardClutch Rod

and moveforward drivebelt out of groove in

engine forward drivepulley.

Figure5-10: Oneor two threadson Forward

Clutch Rodshould he exposed aboverectan-

gular nut.

NOTE: While pushing inward on the

forward idler arm, be sure that the

forward drive belt is moved off to the

right side of the tiller. This creates

more room to install the clevis pin

when the forward idler arm is 3ushed

inward.

IMPORTANT:Whenthe clevispin Is

installed in the inner hole ofthe forward

adjustablelink, the number of additional

belttensionadjustmentsare limited. If,

with future tension adjustments, you find

that you cannot screwtheforward clutch

rod anyfartherinto the rectangularnut on

the forward clutch bracket,it meansthat

the forward drivebelt must be replaced.

Beforedoing so, the clevispin must be

returnedto the OUTSIDEhole inthe

forward adjustablelink.

8. Replacethe forward drive belt in the

Highspeedgroove (groove closest to en-

gine) or the Lowspeedgroove (rearmost)

grooveofthe enginedrivepulleyandinthe

matching groove of the transmission pul-

ley. Besure the belt is to the inside of the

wire formed beltguide(I, Figure5-12) and

to the inside of the forward drive idler pul-

ley (J).

Figure5-12: Topview of beltsand pulleys.

Figure5-13

ToCheckand AdjustTensiononthe Re-

verseDriveBelt:

1. Removethe belt cover after first shut-

ting off the engine,disconnectingthe

spark plug wire, and allowing the engine

and muffler to cool down.

2. Standatthe front of thetiller and use

your left handto pushthe reverseidler

arm (K, Figure5-13) inward asfar as pos-

sible (the reverseidler pulley [L] is at-

tached to the reverseidler arm).

Holdtheidler arm in this position and look

atthe position ofthe belt tensionguide

mark (M, Figure5-14) that isstampedinto

the face of the reverseadjustable link (N,

Figure5-14).

• Thetension is correct if the guide mark

(M, Figure5-14) isanywhereto the left of

the guide pin (0), asviewedfrom the

Figure5-11: Remove clevispin fromouter

hole inforwardadjustablelinkandmoveto in-

ner hole in link.

9. Reinstallthe belt cover and secure it

with the two nuts.

10. Readjusttheforward drivebelttension

byfollowing the instructions in Section 3:

HandlebarHeight Adjustment.

Figure5-14: Whilepushingreverseidler arm #l-

ward,standat engineendandcheckpositionof

guidemark(M) andguidepin (0).

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Troy-Bilt 21A-675B766 User manual

Brand: Troy-Bilt

Model: 21A-675B766

Category: Mini tillers

Type: User manual

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Troy-Bilt 21A-675B766 User manual

Troy-Bilt 21A-675B766 User manual

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