Troybilt 21A-634B063-2001, 21A-630B063 Owner’s Manual

0 TRnV BILT'"

Operator's Manual

Rear-tine Tiller Models

630B--Tufty _
634F--Bronco TM

634B--Super BroncoTM

Mode1634B Shown

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-cov-

ered 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. 770-10594A

(12/2001 )

TABLE OF CONTENTS

Content Page

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

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

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

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

Operation ................................................................ 12

Maintenance .............................................................. 17

Off-Season Storage ........................................................ 21

Troubleshooting ........................................................... 22

Parts List ................................................................. 23

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

FINDINGMODELNUMBER

This Operator's Manual is an important part of your new Rear-tineTitter. It will help you assemble, prepare and main-

tain 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

O BILT" TROY-BILT LL(

www.troybilt.com CLEVE_ND,OH_136

• 866-840-648_

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.

CALLINGCUSTOMERSUPPORT

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 ..

This machine meets voluntary safety standard

B71.8 - 1996, which is sponsored by the Outdoor
Power Equipment Institute, Inc., and is published
by the American National Standards Institute.

WARNING

Safety

ForwardClutchBail

ReverseClutch

Control(Models

634F/634a)

The engine exhaust from this product contains
chemicals known to the State of California to cause

cancer, birth defects or other reproductive harm.

SafetyAlert Symbol

This is a safety alertsymbol. It is used in this

manualand on the unit to alertyou to poten-
tial hazards. Whenyou seethis symbol, read
and obeythe messagethatfollows it. Failure
to obeysafety messagescould result in

personal injury or property damage.

wearing adequateouter garments. Avoid

1. Carefullyreadthis Owner's

Training

Manual,the separateEngine

Owner's Manual, and any
other literature you may receive. Bethor-
oughlyfamiliar with the controls andthe

proper use ofthe tiller and its engine.
Knowhow to stop the unit anddisengage

the controls quickly.

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

tiller without proper instruction.

3. Keepthe areaof operation clear ofall
persons,particularly children and pets.

4. Keepin mind that the operatoror user
is responsiblefor accidents or hazards

occurring to other people,their property,

and themselves.

Preparation

1. Thoroughly inspectthe areawhere the

tiller is to be usedand remove all foreign

objects.

2. Be sureall tiller controls arereleased

and both wheelsare in the Wheel Drive

position beforestarting the engine.

3. Do not operatethe tiller without

loosegarments or jewelry that could get

caught in moving parts.

4. Do not operatethe tiller when barefoot
or wearingsandals, sneakers,or light

footwear. Wear protectivefootwear that
will improve footing on slippery surfaces.

5. Do not till near undergroundelectric

cables,telephonelines, pipesor hoses. If

in doubt, contact your telephoneor utility

company.

6. Warning: Handlefuel with care; it is
highlyflammable and its vapors are explo-

sive. Takethe following precautions:

a. Storefuel in containers specifically

designedfor this purpose.

b. Thegascapshall neverbe removed

or fuel addedwhilethe engineis run-

ning. Allowthe engineto cool for

severalminutesbeforeaddingfuel.

¢. Keepmatches,cigarettes, cigars,

pipes, openflames,and sparks

away from the fuel tank and fuel
container.

d. Fillfuel tank outdoors with extreme

care. Neverfill fuel tank indoors.

Useafunnel or spout to prevent

spillage.

DepthRegulator

TineHoodFlap

f

Standard-Rotating-
Tines(SRT)

WheelDrivePin
(on eachwheel)

Figure1-1: Tillerfeaturesandcontrols(5.SHPModelshown),Seeseparate
EngineOwner'sManualtoidentifyenginecontrols.

e.

Replaceall fuel tankand container

caps securely.

f.

If fuel is spilled, do not attempt to
start the engine, but movethe
machine awayfrom the area of
spillageand avoid creating any
source of ignition until fuel vapors
havedissipated.

7. Never makeadjustmentswhen engine
is running (unless recommendedby
manufacturer).

Operation

1. Donot put handsor feet nearor under

rotating parts.

2. Exerciseextreme caution when on or

crossing graveldrives, walks, or roads.
Stay alertfor hidden hazardsor traffic. Do

notcarry passengers.

3. After striking a foreign object,stop the

engine, removethe wire from the spark

plug wire and prevent it from touching the

spark plug.Thoroughly inspect the

machinefor any damageand repair the

damagebeforerestarting and operating
the machine.

4. Exercisecaution to avoid slipping or
falling.

5. If the unit should start to vibrateabnor-
mally, stop the engine, disconnect the

spark plug wire and prevent it from

touching the spark plug, and checkimme-

diatelyfor the cause. Vibration is gener-

ally a warning oftrouble.

6. Stop the engine,disconnect the spark
plug wire and prevent it from touching the
spark plug, wheneveryou leavethe oper-

ating position, before unclogging the tines,

or when making any repairs, adjustments
or inspections.

7. Takeall possible precautionswhen
leavingthe machine unattended. Stopthe
engine. Disconnectthe spark plug wire

and move it awayfrom the spark plug. Be

surethat both wheelsare in the Wheel
Drive position.

8. Beforecleaning,repairing, or
inspecting, stop the engineand make cer-

tain all moving parts havestopped. Dis-

connectthe spark plug wire and prevent it
from touching thespark plug to prevent
accidentalstarting.

9. The flap on the tine hood must bedown

when operating thetiller.

lB. Neverusethe tiller unless proper

guards, plates,or other safety protective

devicesare in place.

11. Donot run the engine in an enclosed

area. Engineexhaustcontains carbon

monoxide gas,a deadlypoison that is

odorless,colorless, and tasteless.

12. Keepchildren and petsaway.

13. Neveroperatethe tiller underengine

powerif the wheels are in the Freewheel

position.Inthe Freewheelposition, the

wheels will not hold thetiller backandthe

revolving tines could propel the tiller

rapidly, possibly causing loss of control.
Always engagethewheels with the wheel

drive pins in the WheelDrive position

beforestarting the engineor engaging the
tines/wheels with the Forward ClutchBail

(all models) or the ReverseClutchcontrol

(Models 634F/634B only).

14. Beaware that thetiller may unex-

pectedlybounceupwardor jump forward

ifthe tinesshouldstrike extremelyhard

packedsoil, frozenground,orburied

obstacleslike large stones,roots,or

stumps.If in doubtaboutthe tilling con-

ditions,alwaysusethe following

operatingprecautionsto assistyouin
maintainingcontrolofthetiller:

a. Walk behindandto oneside ofthe

tiller, usingonehandon thehan-
dlebars. Relaxyour arm, butusea
securehandgrip.

b. Useshallower depth regulatorset-

tings, workinggraduallydeeper

with eachpass.
c. Use slowerenginespeeds.
d. Clearthe tilling area ofall large

stones,rootsandotherdebris.
e. Avoidusingdownwardpressureon

the handlebars.If need be, use

slight upwardpressureto keepthe

tines fromdiggingtoo deeply.

f. Beforecontactinghardpackedsoil

at the end ofa row, reduceengine
speedandlift the handlebarsto

raise thetines outofthe soil.

g. In an emergency,stopthe tines and

wheels byreleasingwhichever

clutchcontrolis engaged. Do not

attempttorestrainthe tiller.

15. Donot overloadthe tiller's capacity by

attempting to till too deeplyat too fast a

rate.

16. Neveroperatethetiller at high trans-
port speeds onhard or slippery surfaces.
Look behind andusecarewhen backing
up.

17. Donot operatethe tiller on a slope

that is too steepfor safety.When on

slopes,slow down and make sure you
havegood footing. Neverpermit the tiller

to freewheeldown slopes.

18. Neverallow bystanders nearthe unit.

19. Onlyuseattachments and accessories

that are approvedby the manufacturer of
the tiller.

20. Usetiller attachments and accessories

when recommended.

21. Neveroperatethetiller without good

visibility or light.

22. Neveroperatethetiller if you are tired;
or underthe influence ofalcohol, drugs or

medication.

23. Operatorsshall not tamper with the
engine-governorsettings on the machine;

the governor controls the maximum safe

operatingspeedto protect theengine and

all moving parts from damagecausedby

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

24. Donot touch engine parts which may
be hot from operation. Let parts cool down
sufficiently.

25. Pleaseremember: You canalways
stop the tinesand wheels by releasingthe

ForwardClutch Bail or on Models 634F
and 634Bthe ReverseClutch control,

(whichever control is engaged),or by
moving the ignition switch and/or throttle
control leveron the engineto "OFF"or

"STOP".

26. To load or unloadthe tiller, seethe
instructions in Section 4 of this Manual.

27. Useextremecaution when reversing
or pulling the machinetowards you.

28. Start the enginecarefully according to
instructions and with feet well awayfrom

thetines.

29. Never pick up or carry a machine
while the engine is running.

MaintenanceandStorage

1. Keepthe tiller, attachments and acces-

sories in safeworking condition.

2. Checkall nuts, bolts, and screwsat
frequent intervalsfor proper tightness to

be surethe equipment is in safe working
condition.

3. Neverstorethe tiller with fuel in the fuel
tank inside a building where ignition

sourcesare present such as hot water and
spaceheaters,furnaces, clothesdryers,
stoves,electric motors, etc.). Allow the
engineto cool beforestoring the unit in
anyenclosure.

4. To reduce the chances of a fire hazard,
keepthe engine free of grass, leaves,or

excessivegrease.

5. Storegasoline in a cool, well-ventilated
area,safely away from any spark- or
flame-producing equipment. Storegaso-
line in an approved container, safelyaway

from the reachof children.

6. Referto the Maintenancesections of
this Manualand the separateEngine

Owner's Manualfor instructions if the unit
is to bestored for an extended period.

7. Neverperform maintenancewhile the
engine is running orthe spark plug wire is
connected,exceptwhen specifically

instructed to do so.

8. If thefuel tank hasto be drained,do
this outdoors.

Decals

Foryour safety and the safety of
others, various safetyand opera-
tional decalsare located on your
unit (seeFigure1-2).

Keepthe decals cleanand legible at
all times. Contactyour local ser-
vice dealerorthe factoryfor
replacements ifany decalsare
damagedor missing.

Referto the Parts List pagesin this
Manualfor decallocations, descrip-
tions and part numbers.

ForwardClutchBail

OperatingInstruction

Starting Stabilization
Message (on engine)

ReverseClutchControl
OperatingInstruction

(Models 634F/634B)

\

Rot SurfacesWarning

(onbelt cover)

Figure1-2: Locationof safety and operatingdecals(5.5HP Model shown).

Messages

OperatingSymbols

Varioussymbols (shown here,with word
descriptions)may beusedon the tillerand
engine. Your unit may not haveall of the
symbols.

FAST SLOW STOP

• READTHEOWNER'SMANUAL.

• KNOWLOCATIONSAND FUNCTIONSOFALLCONTROLS.

• KEEPALL SAFETYDEVICESANDSHIELDSIN PLACEANDWORKING.

• NEVERALLOWCHILDRENORUNINSTRUCTEDADULTSTO OPERATETILLER.

• SHUT OFFENGINEANDDISCONNECTSPARKPLUGWIREBEFOREMANUALLYUNCLOG-

GINGTINESORMAKINGREPAIRS.

• KEEPBYSTANDERSAWAYFROMMACHINE.

• KEEPAWAY FROMROTATINGPARTS.

• USEEXTREMECAUTIONWHENREVERSINGORPULLINGTHEMACHINETOWARDSYOU.

H I÷1 R

CHOKE CHOKE REVERSE '_'

ON OFF TINES

41E-->

TILLERDIRECTION LEVERDIRECTION

TO AVOID SERIOUS INJURY:

ROTATING

BAIL BAIL

ENGAGED DISENGAGED

Assembly

ASSEMBLYSTEPS

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
safetyandoperatinginstructionsin this

manual.

INTRODUCTION

Carefullyfollow these assembly stepsto
correctly prepareyour tiller for use. It is
recommendedthat you readthis Section
in its entirety before beginning assembly.

NOTE:Varioustiller models arepresented
in this Manual.Useonlythe information

appropriate for your tiller model.

INSPECTUNIT

Inspect the unit and carton for damage
immediately after delivery. Contactthe
carrier (trucking company) if you find or
suspectdamage. Inform them of the
damageand request instructions for filing

a claim. To protect your rights, put your

claim in writing and maila copy to the car-
rier within 15days after the unit has been
delivered.Contactthe factory if you need

assistance in this matter.

TOOLS/MATERIALSNEEDED

FORASSEMBLY

(1) 3/8" open-endwrench*
(2) 7/16"open-endwrench*
(2) 1/2"open-endwrench*
(2) 9/16"open-endwrench*
(1) Largeadjustablewrench (Models

634F/634Bonly)
(1) Scissors(to trim plastic ties)
(1) Ruler(for belt tension check)
(1) Blockof wood (to support tiller

when removing wheels)
(1) Tire pressure gauge (for models with

pneumatictires)
(1) Cleanoilfunnel
(1) Motoroil. Referto the EngineOwner's

Manualfor oil specificationsand
quantityrequired.

* Adjustablewrenches may be used.

STEP1: UNPACKINGINSTRUCTIONS

NOTE: While unpacking,do not severely
bend any control cables.

1. The tiller weighs approximately 133 Ibs.
Do not attempt to remove it from the ship-
ping platform until instructed to do so in
theseAssembly steps.

2. Removeany packagingmaterialfrom
the carton. Removeanystaplesfrom the

bottom of the carton and removethe
carton from the shipping platform.

3. Removeall unassembledparts andthe
separatehardwarebag from the carton.
Checkthat you havethe items listed in the

LooseParts List (contact your localdealer
or the factory items are missing or dam-
aged). NOTE: Usethe screw lengthtem-
plate (Fig. 2-1)to identify screws.

LoosePartsList

Qty. Description

1 HandlebarSupport (seeA, Fig.2-2)

1 HandlebarAssembly(seeK,Fig.2-2)

Hardwarebagcontents:

1 Slottedhd. screw, #10-24 x 2"
1 Hexhd. screw, 1/4-20 x 1-1/4"
6 Hexhd. 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
1 Hexnut,#10-24
2 HexIocknut, 3/8"-16

1 Spring, cable(seeW, Fig. 2-5)
1 Bracket,forward clutch cable (see

P,Fig.2-4)

2 LockWasher, 3/8
2 *Self-tapping screw, 1/4-20 x 1/2"

1 *Bracket, reverseclutch cable

*Model 634F& 634B only
IMPORTANT:Motor oil must beaddedto

the enginecrankcase beforethe engineis
started. Follow the instructions in this

Assembly Section and in the separate
Engine Owner's Manual.

NOTE:LEFTand RIGHTsides of the tiller
areas viewed from the operator's position

behind the handlebars.

Figure2-1: Toidentitylengthofscrews,

placescrewontemplateasshownandmea-

suredistancebetweenbottomof screwhead
andtipofscrew.

STEP 2: ATTACHHANDLEBAR

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

the tiller frame usingtwo 3/8"-16 x3/4"

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

2. Thereare three heightadjustment holes
in the two handlebarsupport brackets (E

and F,Fig. 2-2). Usea setting that will

position the handlebarsat approximately

waist levelwhenthe tines are 3"-4"into the

soil. Loosely attach the support brackets

to the handlebarsupport (A) using two

5/16"-18 x 1-1/2" screws (G),5/16"split
Iockwashers(H) and 5/16"-18 hexnuts (I).

NOTE: If a support bracket will not move,
loosenattaching screw (J) and nut.

3. Attach the handlebarassembly (K) to

the handlebarsupport (A) using four

5/16"-18 x 1-1/2" screws (G),5/16"split
Iockwashers(H) and 5/16"-18 hexnuts (I).

Tighten the four screws securely.

4. Tighten all handlebar mounting hard-

ware securely.

STEP3: MOVE TILLER OFF
SHIPPING PLATFORM

To roll the tiller off the shipping platform,

put the wheels in FREEWHEEL,asfollows:

1. Placea sturdy block underthe trans-
mission to raiseonewheelabout 1"off the

ground.

K

D

Fig.2-2:Attachhandlebar(5.5HPModelshown).

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

hub (0) andwheelshaft (N).

3. Slide the wheelfully inward on the
wheel shaft (N, Fig. 2-3). Reinstallthe
wheel drive pin (M) through the wheel
shaft only (not through the wheel hub).
Securethe wheeldrive pin with the hairpin
cotter (L), pushingthe hairpin cotter inas
far as it will go. The wheelshould now
spin freely (freewheel) on thewheel shaft.

Repeatwith the other wheel.

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

MI

Fig.2-3: Wheelin FREEWHEELposition
(wheeldrivepinthroughwheelshaftonly).

' STEP4: INSTALLFORWARD

CLUTCHCABLE

1. Attach the forward clutch cable bracket

G (P, Fig.2-4) to the handlebarsupport (A)

J

_-_17" with a 1/4"-20 x 1-1/4" hex hd. screw(R)

and 1/4"-20 hex Iocknut (S). Tighten

securely.

H I 2. Carefullyunwrapthe forward clutch

cable(cablewithout an attachedknob)

C

from its shipping position andslide the
thin cablewire (T, Fig.2-4) into the slot in

the cablebracket. Pushthe cablecon-

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

the bracketuntil the groove in the con-

nector snaps into place.

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

end of the cable spring (W) until the screw

threads extendthrough the spring.

IMPORTANT:Beforestarting the engine,
the wheels must be placedinthe WHEEL

DRIVEposition (pins through wheel hubs

and wheelshaft). This procedureis
described in WheelDrive Pinsin Section3.

Fig.2-4:Installingforwardclutchcablebracketandcable,

4.Threadthe#10-24 hexnut (Z, Fig.2-5)

halfwayonto the screw (V).

5. Thread the screw (V) into thecable

adjuster (X).

6. Hookthe cable spring (W, Fig.2-6) into

the V-shaped bend in the ForwardClutch

Bail (Y).

7. Check for correct tension on the for-

ward drive belt by taking two measure-

ments of the cablespring, as follows:

a. With the Forward ClutchBail (Y, Fig.2-

6) in an open (released)position, mea-
surethe length ofthe cablespring (W)

from the outermost coil to the outer-
most coil.

b. Squeezethe ForwardClutch Bail against

the handlebar(seeFig.2-7) and re-

measurethe spring length. Thebelt

tension is correct ifthis second mea-

surement is between1/16"to 3/16"
longer thanthe first measurement. If

so, turn the hexnut (Z, Fig.2-7) tightly
against the cableadjuster (X) while pre-
venting the cableadjuster from turning.

c. If the spring lengthis incorrect,you

must adjust the cabletension as
described in CheckingandAdjusting

Forward Drive Belt Tensionin Section5.
Incorrect cabletension can result in belt

slippage (cabletensiontoo loose), or
unintentional tine movementwhen the

clutch bail is in Neutral (cabletension
too tight).

Wm

v

Fig.2-7: Tocheckforwardbelttension,taketwomeasurementsofthelengthofthecoilsin
thespring- firstwiththebailopen,thenwiththebailheldagainstthehandlebar,

STEP5: INSTALLREVERSECLUTCH
CABLE(MODELS634FAND634B

ONLY)

1. Unwrap the reverseclutch cable (CC,
Fig.2-8 and Fig.2-9) from its shipping
position and route it up to the handlebar.

Besurethat the cableis routed beneath

the Forward Clutch Bail.

2. Using the two self-tapping screws (AA,
Fig.2-8) securethe reversecable
mounting bracket(BB)to the handlebars,

as shown.

3. Insertthe cable(CC,Fig.2-8) through

the slot in the cablebracketandposition
the flat side of the threadedassemblynext

to the flat side of the hole. Slide the hex

nut (DD) upthe cableand tighten it

securely.

4. Fastenthe reverseclutch cable to the
left side handlebarwith a cabletie (EE,

Fig.2-9).

5. Testthe function of the reverseclutch
bypulling outand releasingthe cable

knob. The knobshould returnto its neu-

tral position (resting against bracket). If it
doesn't, contact your local dealeror the
factory for technical assistance.

Fig.2-8:Installreversecablebracketand
reverseclutchcable,

FlatSide

Fig.25: Cable
springand
adjuster,

Fig,2-6:Attachforward
clutchcablespringto

forwardclutchbail.

Fig. 2-9: Route reverse clutchcable (CC)as
shown. Attachwith cabletie (EE).

STEP6: CHECKLEVELOF
TRANSMISSIONGEAROIL

STEP7: ADDMOTOROIL

TO ENGINE

Thetransmission was filled with gear oil at
the factory. However,you should check
the gear oil levelat this time to makecer-

tain it is correct.
IMPORTANT:Do notoperatethe tiller if

the gear oil levelis low. Doing so will
result in severedamageto the transmis-
sion components.

1. With the tiller on level ground, pull the
Depth Regulator Lever(FF,Fig.2-10) back
and then all the way up until the lowest
notch in the lever is engaged.

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

locate the main drive shaft situated inside
the housing.

3. Thegear oil level is correct if the gear
oil is approximately halfway up the side of

the main drive shaft.

4. If the oil levelis low, add gearoil by
referring to A. To Checkthe Transmission

GearOilLevel in Section5.

Thetiller is shipped withoutoil in the

engine.
IMPORTANT: Donot start the engine

without first adding motor oEI.Severe

enginedamagewill result if the engine zs
run without oil.

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

capacities.

2. With the tiller on level ground, move the

Depth Regulator Lever/FF. Fig. 2-10) up
or down until the engine is level.

3. Add motor oil as described in the
EngineOwner's Manual.

4. Movethe Depth Regulator Leverall the

way down until the hEghestnotch is

engaged. This placesthe tines in the
"travel" position which allows thetiller to

be moved without thetines touching the
ground.

STEP8: CHECKHARDWARE
FORTIGHTNESS

Checkall nuts and screws for tightness.

Fig. 2-10: AdjustDepthRegulatorLever.

Fig.2-11:Removegearoilfillplug.

STEP 9: CHECKAIR PRESSURE IN

TIRES (units with pneumatic tires)

Ontires equEppedwith airvalves, check

the a_rpressure with a tire gauge. Deflate

or inflate the tires equally to 15 to 20 PSI
(pounds per square inch). Besure that

9othtires are inflated equallyor the unit

will pull to one side.

IMPORTANT:This completes the assembly
steps. Before operating your tiller, make sure
you readthe following sections in this Manual.as
well as the separate EngineOwner's Manual:

• Section 1: Safety

• Section 3: FeaturesandControls

• Section 4: Operation

T FeaturesandControls

Before operating your machine, care-
fully read and understand all safety,
controls and operating instructions in
this Manual, the separate Engine

Owner's Manual, and on the decals on
themachine.

Failure to follow theseinstructionscan
resultin seriouspersonalinjury.

INTRODUCTION

This Sectiondescribes the location and
function of the controls on your tiller.

Referto the following Section, Operation

for detailed operatinginstructions.

Practiceusing thesecontrols, with the
engineshut off, until you understandthe

operationof the controls and feelconfi-
dentwith eachof them.

ENGINE CONTROLS

Referto the engine manufacturer's Engine
Owner's Manual(included in the tiller liter-

ature package)to identify thecontrols on
your engine.

IMPORTANT:Thecontrol for stopping the
engine is locatedonthe engine.

ForwardClutchBail

ReverseClutch

Control(Models

634F/634B)

ulator

Height

Adjustment

WheelDrivePin
(oneachwheel)

Figure3-1: Tillerfeaturesandcontrols(5.5HPModelshown),SeeseparateEngineOwner's
Manualtoidentifyenginecontrols.

Forward Clutch Bail (all models) or the

ReverseClutch Control (Models 634Fand

634B) is engaged.
Usethe FREEWHEELmode only whenthe

engine is not running. In FREEWHEEL,the
wheeldrive pinsare placed only through
the holes in the wheelshaft (not thewheel
hubs), thus allowing the wheels to turn
freely when you manually move the tiller.

wheel hub (D) and wheelshaft (B). Secure
wheel drive pin with hairpin cotter (C) by

pushing hairpin cotter in as far as it will
go. Repeatwith the other wheeland then
removethe support from beneaththe

transmission.

I

WHEEL DRIVE PINS

Eachwheel is equippedwith a wheeldrive

pin (A, Figures3-2 and 3-3) that secures
the wheel to the wheelshaft (B). The
wheels can be positioned in either a

WHEELDRIVEor a FREEWHEELmode.

Never allow either of the wheels to be

in the FREEWHEELposition when the

engine is running. Always put both

wheels in the WHEEL DRIVE position

beforestartingthe engine.

Failure to comply could cause loss of

tiller control, propertydamage, or per-

sonalinjury.

Beforestarting the engine,put both
wheels in the WHEELDRIVEposition by

inserting the wheeldrive pinsthrough the
wheel hubs andthe wheel shaft. Doingso

"locks" the wheels to thewheel shaft,

causingthe wheels to turn wheneither the

To placethewheels in WHEELDRIVEor
FREEWHEEL:

1. Stop engine,disconnectspark plug wire
from spark plugand allow engineto cool.

Do not place tiller on its side when
changingwheel drive positions. Doing
so couldresult in gasoline leakingfrom

thefuel tank.
Failure to follow this instruction could

result in personal injury or property
damage.

2. Raiseonewheel about one inch off the

ground and placea sturdy support under
the transmission.

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

4. FORWHEELDRIVEMODE(Figure3-2):
Slide wheel outwardand align holes in

wheel hub (D, Figure3-2) and wheel shaft
(B). Insert wheeldrive pin (A) through

D

Figure3-2: WHEELDRIVE position,

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

wheel drive pin (A, Figure3-3) only
through the holein the wheelshaft (B).

Securewheel drive pin with hairpincotter
(C) by pushing hairpin cotter in as far asit

will go. Repeatfor the other wheel and
then removethe support from beneaththe
transmission.