Troybilt 21A-645A063, 21A-644H063 Owner’s Manual

0 TRtlI BILT°

Operator's Manual

Rear-tine Tiller Models

644H--Bronco TM
645A--Bronco TM

Model 644H Shown (bumper syles vary)

IMPORTANT:READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

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 arrester 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 by contacting the service department at Troy-Bilt LLC, P.O. Box 361131 Cleveland, Ohio 44136-0019.

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

PRINTED IN USA FROM NO. 769-00585A

(01/2003)

TABLE OF CONTENTS

Content Page

Calling Customer Support .................................................... 2

Safety ................................................................... 3

Assembly................................................................. 6

Features and Controls ....................................................... 10

Operation ................................................................ 13

Maintenance .............................................................. 19

Off-Season Storage ........................................................ 24

Troubleshooting ........................................................... 25

Parts List................................................................. 26

Warrany Information ........................................................ Back Cover

FINDINGMODELNUMBER

This Operator's Manual is an important part of your new Rear-tineTiller. It wilt 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 infor-
mation from it in the space provided below. This information is very important if you need help from our Customer
Support Department or an authorized dealer.

You can locate the model number by looking at the rear surface of the tine shield. A sample model plate is
explained below. For future reference, please copy the model number and the serial number of the equipment
in the space below

Copy Model Number Here

OTRII BILT" TROY-BILT LLC

www.troybilt.com CLEVELAND,OH44136

• 866-840-6483j

P. O. BOX 361131

330-558-7220

Copy Serial Number Here

ENGINEINFORMATION

The engine manufacturer is responsible for all engine-related issues with regards to performance, power-rating, speci-
fications, warranty and service. Please refer to the engine manufacturer's Owner's/Operator's Manual packed sepa-

rately with your unit for more information.

CALLING CUSTOMER SUPPORT

If you have difficulty assembling this product or have any questions regarding the controls, operation or maintenance
of this unit, please call the Customer Support Department.

your unit's model number and serial number ready when you call. See previous section to locate this

Call 1- [phone] or 1- [phone] to reach a Customer Support representative. Please have
information. You will be asked to enter the serial number in order to process your call ..

2

n

Safety

SPARKARRESTERWARNINGTORESIDENTSOFCALIFORNIAANDSEVERALOTHERSTATES

UnderCalifornia law, and under the laws of severalother states,you are not permitted to operatean
internalcombustion engineusing hydrocarbon fuels on any forest, brush, hay, grain, or grass
covered land;or land covered byany flammable agricultural crop without anenginesparkarresterin

continuous effective working order.
Theengineon the unit is an internal combustion engine whichburns gasoline,a hydrocarbon fuel, and must be equippedwith a

spark arrester muffler incontinuous effective working order. Thespark arrester must be attachedto the engine exhaust system in
such a manner that flames or heatfrom the system will not ignite flammablematerial. Failureof the owner/operator of the unit to
comply with this regulation is a misdemeanor under California law (and other states) and may also bea violation of other state

and/or federal regulations, laws, ordinancesor codes, Contactyour localfire marshalor forest service for specificinformation
aboutwhich regulations applyin your area,

Training

1. Carefully readthis
Owner's Manual,the

separateEngineOwner's
Manual, andany other literature you may

receive,Bethoroughly familiar with the
controls and the proper use of the tiller

and its engine. Know howto stop theunit
and disengagethe controls quickly.

2. Neverallow children to operatethe
tiller,Neverallow adults to operatethe

tiller without proper instruction,
3, Keepthe area of operationclear of all

persons, particularly children andpets.

4. Keepin mindthat theoperator or user
is responsible for accidents or hazards
occurring to other people, their property,

and themselves.

Preparation

1. Thoroughly inspect theareawhere the
tilleris to be usedandremoveallforeign
objects.

2. Besure all tiller controls are released
and both wheels arein the Wheel Drive

position beforestarting the engine,

3. Do not operatethe tiller without
wearingadequateouter garments. Avoid
loosegarments orjewelry that could get
caught in moving parts.

4. Do not operatethe tillerwhen barefoot
or wearing sandals, sneakers,or light
footwear. Wearprotective footwearthat
will improvefooting on slippery surfaces,

5. Donot till near underground electric

cables,telephone lines, pipes or hoses. If

in doubt, contact your telephoneor utility

company,

6. Warning: Handlefuel with care; it is
highly flammable and its vapors are

explosive. Besureto take thefollowing

precautions:

a, Storefuel in containers specifically

designedfor this purpose.

b, Thegascap shall neverberemoved

or fuel addedwhile the engine is

running, Allow theengine to cool

for severalminutes beforeadding
fuel.

C,

Keepmatches,cigarettes, cigars,
pipes, open flames,and sparks

away from the fuel tank and fuel
container.

d, Fillfuel tank outdoors with extreme

care. Neverfill fuel tank indoors,

Usea funnel or spout to prevent

spillage.

e, Replaceall fuel tank and container

caps securely,

f. Iffuel is spilled, do not attempt to

start the engine, but move the

machineaway from the areaof
spillage and avoid creating any
source of ignition until fuel vapors

havedissipated,

7. Never makeadjustments when engine
is running (unlessrecommendedby

manufacturer).

Operation

1. Do not put hands or feet nearor under

rotating parts. Thetines begin to rotate
oncethe engine starts and the Forward
Clutch Bail (or ReverseClutchControl) is
engaged.

2. Exerciseextremecaution whenon or
crossing gravel drives,walks, or roads,

Stay alert for hidden hazardsor traffic. Do
not carry passengers,

3. After striking a foreign object, stop the
engine,remove the wire from the spark

plug and prevent it from touching the
spark plug, thoroughly inspectthe

machine for any damage,and repair the
damagebefore restarting and operating

the machine.

4. Exercisecaution to avoid slipping or
falling.

5. Ifthe unit should start to vibrate abnor-
mally, stop theengine, disconnect the

spark plug wire and prevent it from
touching the spark plug, and check

immediately for thecause. Vibration is
generallya warning of trouble.

6. Stop theengine, disconnect the spark
plug wire and prevent it from touching

the spark plug wheneveryou leavethe
operating position, beforeunclogging the

tines, or when making anyrepairs,adJust-
ments or inspections,

Section1: Safety

7. Takeall possible precautionswhen

leavingthe machineunattended, Stop the

engine. Disconnectspark plug wire and

move it away from the spark plug. Be

sure both wheels are in the WheelDrive

position,

8. Beforecleaning, repairing, or inspect-
ing,stop the engineand makecertainall

moving parts havestopped, Disconnect

the spark plug wire and prevent it from
touching the spark plug to prevent acci-
dentalstarting.

9. Theflap on the tine hood must be

down whenoperating the tiller.

10. Neverusethe tiller unless proper

guards, plates,orother safety protective
devicesare in place.

11. Do not run enginein an enclosed

area,Engineexhaustcontains carbon

monoxide gas,a deadly poisonthat is

odorless, colorless, and tasteless,

12. Keepchildren andpetsaway.

13. Never operatethe tiller under

enginepowerifthe wheels are in the
Freewheelposition.In the Freewheel
position,the wheels will not holdthe

tiller backandthe revolvingtinescould

propelthe tiller rapidly, possibly
causinglossofcontrol.Always engage

thewheelswith thewheel drive pinsin
theWheelDrive positionbefore starting
theengineor engagingthetines/wheels

with the ForwardClutch Bailor the

ReverseClutchControl.

14. Beawarethat the tiller may unexpect-

edly bounce upward orjump backward
and be propelled toward you if the tines
should strike extremely hard packedsoil,
frozen ground, orburied obstacles like

largestones, roots, or stumps, If in doubt

about the tilling conditions, alwaysuse
the following operating precautions to
assist you inmaintaining control of the

tiller:

a. Walk behindand toone sideofthe

tiller, usingone handon the han-
dlebars. Relaxyour arm, butuse a
securehandgrip.

b. Use a deepdepth regulator

setting.

c. Useslowerengine speeds.
d. Clear thetilling area of all large

stones,rootsandother debris.

e. Avoidusingdownwardpressure

on handlebars.If needbe, use
slightupwardpressureto keepthe

tinesfrom diggingtoodeeply.

f. Beforecontactinghardpackedsoil

at the endof a row, reduceengine
speedand lift handlebarstoraise
tinesout ofthesoil.

In an emergency,stoptinesand

g.

wheelsbyreleasingwhichever
clutchcontrolisengaged. Donot

attemptto restrainthe tiller.

15. Do not overloadthetiller's capacity

by attempting to till too deeply at too fast

a rate.

16. Neveroperatethe tiller at high
transport speedson slippery surfaces,
Look behind and use great care when
backing up,

17. Do not operatethe tiller on a slope
that istoo steepfor safety,When on
slopes, slow down and makesure you
havegood footing, Never permit the tiller

to freewheeldown slopes,

18. Neverallow bystanders nearthe unit,

19. Onlyuse attachments and acces-

sories that areapproved bythe manufac-
turer of the tiller,

20. Usetiller attachmentsandacces-
sories when recommended.

21. Neveroperatethe tiller withoutgood
visibility or light.

22. Neveroperatethe tiller if youare
tired, or under the influenceof alcohol,

drugs or medication.

23. Operatorsshall not tamper with the
engine-governorsettings on the machine;
the governor controls the maximum safe
operating speedto protect the engineand
all moving parts from damagecausedby
overspeed, Authorizedserviceshall be
sought if a problem exists.

24. Do nottouch engine parts whichmay
be hot from operation. Let parts cool
down sufficiently.

25. Pleaseremember:Youcan always
stop the tines and wheels by releasingthe

ForwardClutchcontrol or the Reverse
Clutchcontrol (whichevercontrol you

haveengaged),or by moving the throttle
control lever on the engineto "OFF"or

"STOP".

26. To load or unload the tiller, seethe
instructions in Section4 of this Manual.

27. Useextremecaution whenreversing
or pulling the machinetowards you.

28. Starttheengine carefullyaccordingto
instructions and with feet well awayfrom

thetines.

29. Neverpick upor carry a machine
while the engine is running.

MaintenanceandStorage

1. Keepthe tiller, attachments and acces-
sories in safeworking condition.

2. Check all nuts, bolts, and screws at
frequent intervalsfor proper tightness to

besure the equipment is in safeworking
condition.

3. Neverstore the tiller with fuel in the
fueltank insidea building whereignition

sourcesare present such as hot water
andspace heaters,furnaces,clothes

dryers, stoves, electric motors, etc.).
Allow engineto cool beforestoring in any

enclosure.

4. To reducethechances of a fire hazard,
keepthe engine freeof grass, leaves,or

excessivegrease.

5. Storegasoline in a cool, well-ventilated
area,safely away from any spark- or
flame-producing equipment, Store
gasolinein anapproved container, safely
awayfrom the reachof children.

6. Referto the Maintenancesections of
this Manualandtheseparate Engine

Owner'sManual for instructions if the
tiller isto be stored for an extended

period.

7. Neverperform maintenancewhile the
engineis running or the spark plug wire
is connected,except when specifically

instructed to doso.

8. Ifthe fuel tank hasto be drained,do
this outdoors,

Decals

Foryour safety andthe safety of others,
various safetyand operational decalsare
located on your unit (see Figure1below).

Keepthe decals clean and legible atall
times, Contactyour localservice dealer
or the factory for replacementsif any
decalsare damagedormissing,

Section1: Safety

Referto the separateparts catalog for
decallocations, part numbers and

ordering instructions.

ForwardClutchControl

OperatingInstruction

StartingStabilization

Messageonengine

_ OperaUngInstruction

WarningMessages

ontinehood

HotSurfaces

Warningonbeltcover

ReverseClutchControl

Figure1:LocationofSafetyandOperatingDecals(Model 644Hshown).

OperatingSymbols

Various symbols (shown here, with word

descript'_ns)are usedon the tiller and engine

(your unit may not haveallof thesymbols).

FAST SLOW STOP

READTHEOWNER'SMANUAL.
KNOWLOCATIONSANDFUNCTIONSOFALLCONTROLS.
KEEPALLSAFETYDEVICESAND SHIELDSIN PLACEANDWORKING.

NEVERALLOWCHILDRENOR UNINSTRUCTEDADULTSTO OPERATETILLER.
SHUTOFFENGINEANDDISCONNECTSPARKPLUGWIRE BEFOREMANUALLYUNCLOG-

GINGTINES ORMAKINGREPAIRS.
KEEPBYSTANDERSAWAYFROMMACHINE.
KEEPAWAYFROM ROTATINGPARTS.
USEEXTREMECAUTIONWHENREVERSINGORPULLINGTHEMACHINETOWARDSYOU.

H I÷1

CHOKE CHOKE

ON OFF

(--411

TILLERDIRECTION

TO AVOID SERIOUS INJURY:

R

REVERSE

ROTATING

TINES

(-- o--->

LEVERDIRECTION

BAIL

ENGAGED

BAIL

DISENGAGED

I]

Assembly

WARNING

To prevent personal injury or
property damage, do not start

the engine until all assembly
steps are complete and you

have read and understand the
safety and operating instruc-

tions in this manual.

Introduction

Carefullyfollow theseassembly steps to
correctly prepareyour tiller for use, It is
recommendedthat you readthis Section
in its entirety before beginning assembly,
NOTE: Enginesyles vary by model, The
engineon your tiller may appeardiffer-
ently than those shown inillustrations
and Figuresthroughout this manual,

Inspect unit

Inspect the unit and carton for damage
immediately after delivery. Contactthe
carrier (trucking company) if you find or
suspect damage, Inform them of the
damageand request instructions for filing
aclaim. To protect your rights, put your
claim in writing and mail acopy to the
carrierwithin 15 daysafter the unit has

beendelivered,

STEP1: UnpackingInstructions

1. Removeanycardboard inserts and
packagingmaterial from the carton.

Removeany staplesfrom the bottom of
thecarton and then lift thecarton up and
off theunit.

2,Thetiller is heavyandyou should not
attempt to remove it from the shipping

platform until the handlebarsare
installed, Theprocedurefor removing the

tiller is explainedin Step3 of these
assemblysteps.

NOTE:Becareful not to severely bendany
of the control cables on the unit.

3. Removeall unassembledpartsand
the separatehardware bag from the
carton, Checkthat you havethe items
listed below (contact your localdealer or
the factory if any items are missing or
damaged), NOTE: Usethe screw length
template (Fig, 2-1) to identify screws,

LooseParts List

Qty. Description

1 HandlebarSupport (seeA, Fig,2-2,

page7)

1 HandlebarAssembly

(seeK, Fig,2-2)

Thefollowing itemsarein the

hardwarebag:

1 Slotted hd. screw, #10-24 x 2"
1 Hexhd, screw, 1/4-20 x 1-1/4"
6 Curvedhd. screw, 5/16-18 x 1-1/2"

2 Hexhd, screw, 3/8-16 x 3/4"
2 Flatwasher, 3/8"

6 Split Iockwasher,5/16"
1 HexIocknut, 1/4"-20

6 Hexnut, 5/16"-18
2 HexIocknut, 3/8"-16

1 Hexnut,#10-24
1 Spring, cable(seeW, Fig. 2-5,

page8)

1 Bracket,forward clutch cable (see

P,Fig,2-5, page8)

1 Bracket,reverseclutch cable (see

BB,Fig, 2-8, page9).

IMPORTANT:Motoroil mustbeaddedto

the enginecrankcasebeforethe engine

isstarted. Followthe instructionsinthis
"Assembly"section.

NOTE:LEFTand RIGHTsides of the tiller
are asviewed from the operator's

position behindthe handlebars.

Tools]MaterialsNeededfor
Assembly

(1) 3/8" open-endwrench*
(2) 7/16" open-endwrench*
(1) l/2" open-endwrench*
(2) 9/16" open-endwrench*
(1) Large adjustablewrench
(1) Scissors (to trim plastic ties)

(1) Ruler (for belt tension check)
(1) Block of wood (to support tiller

whenremoving wheels)

(1) Automotive-type air pressure gauge
(1) Cleanoil funnel

(1) Clean,high-quality engine oil Refer

to the EngineOwner Manualfor
engineoil specifications andquantity
required, Do not overfill,

* Adjustablewrenches may be used.

Figure2-1:Toidentifylengthofscrew,
placescrewontemplateasshownand
measuredistancebetweenbottomofscrew

headandtipofscrew.

6

STEP2: Attach Handlebar

1. Attach the two legs ofthe handlebar
support (A, Fig.2-2) loosely to the inner
sides of the tiller frame using two 3/8"-16

x 3/4" hexhd. screws (B), 3/8" flat
washers(C) and 3/8"-16 hexIocknuts (D).

2. Usingthe middle holesin the handlebar
support brackets (Eand F,Fig. 2-2),
loosely attachthe support bracketsto the
handlebarsupport (A) using two 5/16"-18
x 1-1/2" curved hd. screws (G),5/16" split
Iockwashers (H)and 5/16"-18 hexnuts (I).
NOTE:If a support bracketwill not move,
loosenattaching screw (J) and nut.

3. Attach the handlebarassembly (K) to
thehandlebarsupport (A) using four

5/16"-18 x 1-1/2" curved hd. screws (G),
5/16" split Iockwashers(H) and 5/16"-18
hexnuts (1).Tighten the four screws
securely.

4. Tighten allhandlebarmounting
hardwaresecurely.

Section2: Assembly

STEP3: MoveTiller OffShipping

Platform

Tomovethe tiller withouttheengine
running, put the wheelsin their
FREEWHEELposition, as described below.

1. Usea sturdy blockto raise onewheel
off theground.

2. Removethe hairpin cotter (L, Fig.2-3)
and wheeldrive pin (M). Slide the wheel

inward on the wheelshaft (N). Reinstall
thewheel drive pin and hairpin cotter

through the wheelshaft only (not through
thewheel hub). Repeatwith the other

wheel.

3. Using the handlebaras a lever, roll the
tiller to aflat area.

IMPORTANT:Beforestarting the engine,
thewheels must be placedintheirWHEEL
DRIVEposition (pins through wheel hubs
and wheelshaft). This procedureis

described in "Wheel Drive Pins" in
Section 3.

\

B

C

D

Fig. 2-2: Attach handlebar.

I

L

Fig. 2-3: Wheel in FREEWHEELING
position(wheel drivepin throughwheel

shaRonly).

7

Section2: Assembly

STEP4: Install ForwardClutch Cable

1. Placethe forward clutch cablebracket
(P,Fig.2-4) on the handlebarsupport (A).

Attach the cable bracket using a 1/4"-20 x

1-1/4" hexhd, screw (R, Fig. 2-4) and
1/4"-20 hexIocknut (S).Tightensecurely.

2. Carefullyunwrap the forward clutch

cable (the cablewithout a knob attachedto
it) from its shipping position and slide the
thin cablewire (T, Fig. 2-4) into the slot in

thecable bracket. Pushthecableconnector

(U, Fig,2-4) up through the hole in the

bracket until the groove in the connector
snaps into placeonthe bracket.

3. Insertthe #10-24 x 2" slotted hd. screw
(V,Fig.2-5) down into the cablespring

(W). The threadedend of thescrew will

extend from the bottom of the spring.

4. Threadthe #10-24 hex nut (Z) on the

slottedheadscrew(V).Threadit halfwayup,

5. Threadscrew (V) into cableadjuster (X),

6. Hookcablespring (W, Fig. 2-6) into "V"-

shapedbend in theforward clutch bail (Y).

7. Lift and hold the ForwardClutch bail

against the handlebar. SeeFig, 2-7,

8. Measurethe length of the cable spring

betweenthe ends of the coils (Fig. 2-7).
Thelength should be approximately 1-7/8".

If the length is correct, turn the #10-24 hex

nut (Z) down tightly againstthe cable
adjuster (X) while holding the adjuster in
place. SeeFigure2-7, If the length is
incorrect, you must makean adjustment to

the cable tension as described in
"Checking andAdjusting ForwardDrive

Belt Tension" in Section 5. When the
spring length is correct, tighten the hex nut

(Z)againstthe cable adjuster (X).

R

Fig. 2-4: Installing forwardclutchcable bracketand cable.

W-- Fig.2-5:Assemble

springandadjuster.

V-- --Z

X--

Fig,2-6:Installforwardclutchcable,

STEP5: Install ReverseClutch
Cable

1. Removethetwo pre-installedself-tapping

screws (AA,Fig,2-8) from the handlebars.

2. Position the reversecablemounting

bracket (BB, Fig, 2-8) asshown and
reinstall thetwo self-tapping screws.

3. Unwrapthe reverseclutch cable (the

cablewith a knobandalargehex nut
attachedto it) from around its shipping
positionand routethe cable(CC,Fig.2-8
and Fig,2-9) up to thecable bracket(BB,
Fig, 2-8), Be surethat thecable goes

beneaththe ForwardClutch Bailas it is
routed up to the cablebracket.

8

Fig.2-7:Measurecablespring.

Section2: Assembly

4. Insertthe cableupthrough the slot in

the cable bracketand position the
threadedassembly as shown in Fig,2-8,

Makesurethat the flat sideof the

threadedassembly is aligned with the fiat
side of the mounting hole, Slidethe large

hexnut (DD) up thecable and tighten it

securely,

5. Usea cabletie (EE,Fig,2-9) to fasten
the reverseclutch cable to the left side

handlebar,

6. Testthe function of the reverseclutch
cable by pulling the knob out and

releasingit. Theknob should return to its
neutralposition(resting against bracket)

when it is released. If it doesn't, contact
your localdealer or the factory for

technical assistance,

AA_

I

STEP6: CheckLevelof
TransmissionGearOil

Thetransmission was filled with gearoil

at the factory. However,you should check
the gear oil levelto make certain it is

correct.
IMPORTANT:Do not operate the tiller if

the gear oil levelis low. Doingso will
result in severedamageto the transmis-

sion components,

1. Putthe tiller on level ground. Pullthe
DepthRegulator Lever (FF,Fig. 2-10)

back and then adjust it up or down to the
notch that makesthe tiller level.

2. Removethe oil fill plug (GG,Fig, 2-11)

from the transmission housing and look
into theoil fill hole. Youwill see the main

drive shaft on one side of the hole,

3. The gearoil level is correct if the gear

oil is approximately halfway up the side of
the drive shaft,

4. If the gear oil level is low,addgearoil

by referring to "A. To Checkthe Transmis-
sion GearOil Level"in Section 5,

Fig, 2-10: AdjustDepthRegulator Lever.

Fig.2-11:Removegearoil fillplug.

DD

FlatSide

Fig.2-8:Installreversecablemounting
bracketandthereverseclutchcable.

Fig. 2-9: Route reverseclutch cable(CC)as
shown. Attachtohandlebarwith cable tie

(EE).

STEP7: Add Motor Oil to Engine

The tiller is shippedwithoutoil in the
engine.

IMPORTANT: Do not start the engine
without first adding motor oil.Severe

engine damagewill result if the engine is
run without oil,

1. Referto the EngineOwner'sManual
(suppliedwith tiller) for engineoilspecifi-

cations and capacities,

2. With the tiller on levelground, pullthe
DepthRegulator Lever (FF,Fig. 2-10)

back and then slide it up or down as
necessaryuntil theengine is level.

3. Add motor oil asdescribedin the
EngineOwner's Manual.

4. Move the Depth Regulator Leverall the

way down until the highest notch is
engaged, This placesthetines in the

"travel" position,

STEP8: CheckHardwarefor
Tightness

Checkall nuts and screws for tightness,

STEP9: CheckAir Pressurein
Tires)

Usea tire pressuregauge to checktheair
pressurein both tires, Deflateor inflate

both tires equallyto 15-to-20 PSI
(pounds per square inch), Be surethat
both tires areinflatedequallyor the unit

will pullto oneside.

IMPORTANT: This completes the
assembly steps, Beforeoperating your
tiller, make sureyou readthe following

Sectionsin this Manual, aswell as the
separateEngineOwner's Manual:

• Section 1: "Safety"

• Section 3: "Featuresand Controls"

• Section 4: "Operation"

n

FeaturesandControls

WARNING

Before operating your
machine, carefully read and

understand all safety, controls
and operating instructions in

this Manual, the separate
Engine Owner's Manual, and

on the decals on the machine.
Failure to follow these

instructions can result in
serious personal injury.

Forward ReverseClutch

ClutchBail Control

ulator

ight

Adjustment

Anti-ReverseStake

DrivePin

(on eachwheel)

Figure3-1: Featuresandcontrols.

Introduction

Thissectiondescribes the locationsand

functions of thecontrols on your tiller.
Referto the next section ("Operation")
for detailed operating instructions.

Practiceusing thesecontrols, with the

engine shut off, until you understand the

operationof the controls and feel

confident with eachof them,

IMPORTANT:Referto theseparate

engine manufacturer's EngineOwner's

Manualfor informationabout the

controls on theengine.

lO

WheelDrivePins

WARNING

Never allow either of the
wheels to be in the
FREEWHEEL position when
the engine is running. Always

put both wheels in the WHEEL
DRIVE position before starting
the engine.

Failure to comply could cause
loss of tiller control, property

damage, or personal injury.

Eachwheel isequippedwith aWheel

Drive Pin (A,Figures3-2and 3-3) that
securesthe wheel to the wheelshaft (B).

Thewheelscan be positioned in either a
WHEELDRIVEor aFREEWHEELmode.

Beforestarting the engine,put both
wheels inthe WHEELDRIVEposition by
inserting theWheel Drive Pinsthrough

the wheel hubs and the wheel shaft, This
"locks" the wheels to the wheel shaft,
causing the wheelsto turn when either

the ForwardClutch Bailor the Reverse
ClutchControl is engaged.

Usethe FREEWHEELmode only whenthe
engineis not running, In FREEWHEEL,

theWheel Drive Pins are placedonly

through the holesinthe wheel shaft (not
thewheel hubs), thus allowingthe wheels

to turn freely whenthe tiller is pushed or
pulled by hand,

To Place the Wheelsin WHEELDRIVEor
FREEWHEEL:

1. Stop the engine, disconnect the spark

plug wire from the spark plug and allow
theengine to cool,

2. Raiseonewheeloff the ground and
placea sturdy supportunder the
transmission.

3. Removethe wheel drive pin (A,

WARNING

Do not place the tiller on its
side when changing the wheel

drive positions as doing so
could result in gasoline
leaking from the fuel tank.

Failure to follow this instruc-
tion could result in personal

injury or propertydamage.

Figures 3-2 and 3-3) by removing the
hairpin cotter (C).

Section3: FeaturesandControls

4. FORWHEELDRIVEmode (Figure 3-2):

Slidethe wheel outward and align the
holesin the wheel hub (D, Figure 3-2))

and the wheel shaft (B). Insertthe wheel
drive pin (A)through the wheel hub and

the wheel shaft, Securethe wheel drive

pin with the hairpin cotter (C) by pushing

the hairpin cotter in as far as it will go.

Repeatfor the other wheelandthen
removethe support from beneaththe

transmission,

5. FORFREEWHEELmode (Figure 3-3):
Slidethe wheel inward and insert the

wheeldrive pin (A, Figure3-3) only
through the hole in the wheel shaft (B).

Securethe wheel drive pin with the
hairpin cotter (C)by pushing the hairpin

cotter inas far asit will go, Repeatfor the
other wheel and then remove the support

from beneaththe transmission.

I

D,

ForwardClutchBail

TheForward Clutch Bail (E, Figure 3-4)
controls theengagementof forward drive
to the wheels and powerto the tines,

NOTE: Thewheelswill rotate in aforward
direction; the tines will rotatecounter-
clockwise(backwardtoward the operator),

To OperatetheForwardClutchBail:

1. Putthe wheels in theWHEELDRIVE
position(seethe following "WARNING"

statement).

2. Lift and hold the bail againstthe
handlebar. Thewheels and tines will

rotate- and the tiller will moveina
forward direction.

3. Releasethe bail to disengage(stop)
thewheelsandtines. Forwardtiller motion

will stop (theenginewill continue to run).

WARNING

Before starting the engine, be
sure that both wheels are in

the WHEEL DRIVE position.

See "Wheel Drive Pins" for
instructions.

ReverseClutchControl

The ReverseClutchControl (F,Figure3-4)
controls the engagementof reversedrive
to thewheels and tines, Thispowered

reversing feature is used for maneuvering
the tiller only - neverengagethetines in
the ground while going in thereverse

direction.

To Operatethe ReverseClutchControl:

1. Operate onlywhen the wheels arein

the WHEELDRIVEposition (seethe

"WARNING"statement atthe left).

2. Stopall tiller motion by releasingthe

ForwardClutch Bail.

3. Lift up thehandlebar until the tines
clear the ground, look behind you to avoid

anyobstacles, and then pull the reverse
clutch control knobtoward you. The

wheels will rotate in a reversedirection.

4. Releasethe reverseclutch control

knobto disengage (stop) the wheels and
tines, All reversemotion will stop (the
engine will continueto run),

Figure3-2: WHEELDRIVEposition,

i

B

Figure3-3: FREEWHEELposition.

Engaging the Forward Clutch
Bail or the Reverse Clutch

Control when the wheels are
not in the WHEEL DRIVE

position could allow the tines
to rapidly propel the tiller
forward or backward.

Failure to comply could cause

loss of tiller control, property

damage, or personal injury.

Figure3-4:ForwardClutchBail(E)andReverse
ClutchControl(F).

WARNING

• Use extreme cautionwhen

reversing or pulling the
machine towards you. Look

behind to avoid obstacles.

• Never attempt to till in
reverse.

Failure to follow this warning

could result in personal injury
or property damage.

11