Troy-Bilt 634BM User Manual

Operator’s Manual

Rear-tine Tiller Models

Model 634B Shown

634F —
634B —

Bronco™
Super Bronco

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 appiicabie
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 avaiiable through your nearest engine authorized service dealer or
contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-0019.

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

PRINTED IN U.S.A.

FORM NO. 770-10594B

11/5/02

TABLE OF CONTENTS

Content Page

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

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

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

Freaturesand Controls.....................................................................................................................10

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

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

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

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

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

Warranty Information...................................................................................................................... Back Cover

FINDING MODEL NUMBER

This Operator’s Manual Is an important part of your new Rear-tine Tiller. 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. 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 on 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 the model number here:

TROY-BiLT LLC

www.trovbilt.com Cleveland, oh 4413B

....................^...........................

■a&s P. 0. BOX 361131

330-SS8-7220

866-840-6483.

Copy the serial number here;

ENGINE INFORMATION

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.

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.

Call 1- [phone] or 1- [phone] to reach a Customer Support representative. Please have your unit’s
model number and serial number ready when you call. See previous section to locate this information. You will be
asked to enter the serial

SECTION 1: SAFETY

This machine meets voluntary safety stan
dard B71.8^1996, which is sponsored by the

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

Standards Institute. ......................................

dk WARNING

The engine exhaust from this product contains
chemicals known to the Slate of Caitfomta to
cause cancer, birth defects or other reproduc-

Safety Alert Symbot^^^^^^^

This is a safety alert symbol, it is used

in this manual and on the unit to alert

A

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

persona! injury or property damage.

.......

Figure 1-1: Tiller features and controls (3.5 HP Model shown). See separate

Engine Owner's Manual to identify engine controls.

Training

1 . Carefully read this Own

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

and any other literature you may receive.

Be thoroughly familiar with the controls
and the proper use of the tiller and Its en
gine. Know how to stop the unit and disen
gage the controls quickly. ::::::: ::: /

2. Never allow children to operate the tiller.

Never allow adults to operate the tiller:"
without proper instruction. ': :

3. Keep the area of operation clear of all

persons, particularly children and pets.;:

4. Keep in mind that the operator or user is

responsible for accidents or hazards oc
curring to other people, their property, and
themselves. \

Preparation

1. Thoroughly inspect the area where the
tiller is to be used and remove all foreign

.................

.........

objects.T::::T:'::.;''tT:v,:::::: ’^/: ;

2. Be sure all tiller controls are released
and both wheels are in the Wheel Drive po
sition before starting the engine. ^ ^

3. Do not operate the tiller without wearing
adequate outer garments. Avoid loose gar
ments or jewelry that could get caught in
moving parts. : : : : : ^ : ^ T

4. Do not operate the tiller when barefoot
or wearing sandals, sneakers, or light foot
wear. Wear protective footwear that will

improve footing on slippery surfaces.' :

5. Do not till near underground electric ca­bies, telephone lines, pipes or hoses. If in
doubt, contact your telephone or utility ::
company.: ■ T - T V

6. Warning: Handle fuel with care; it is

highly flammable and its vapors are explo
sive. Take the following precautions: : v

a. Store fuel in containers specifically

^: designed for this purpose. :

b. The gas cap shall never be removed or

fuel added while the engine is running.
Allow the engine to cool for several

y minutes before adding fuel. ^

c. Keep matches, cigarettes, cigars,: ^

pipes, open flames and sparks away

from the fuel tank and fuel container.

d. Fill fuel tank outdoors with extreme

::: care. Never fill fuel tank indoors. Use
::: a funnel or spout to prevent spillage.

e. Replace all fuel tank and container

: caps securely y r V

f. If fuel is spilled, do not attempt to

start the engine, but move the ma
chine away from the area of spillage
and avoid creating any source of ig
nition until fuel vapors havedissi-

'V;:pated.,y;

7. Never make adjustments when engine is
running (unless recommended by manu

facturer). ..................................................

Operation

1. Do not put hands or feet near or under

rotating parts. : : : : : :; y^:^ ; y ;

2. Exercise extreme caution when on or

crossing gravel drives, walks, or roads.
Stay alertfor hidden hazards or traffic. Do

not carry passengers. y y^ y y

3. After striking a foreign object, stop the

engine, remove the wire from the spark

plug wire and prevent it from touching the

spark plug. Thoroughly inspect the ma
chine for any damage and repair the dam
age before restarting and operating the

machine.

.......................................................

4. Exercise caution to avoid siipping or fall

ing.

5. If the unit should start to vibrate abnor
mally, stop the engine, disconnect the

spark plug wire and prevent it from touch

ing the spark plug, and check immediately

for the cause. Vibration is generally a
warning of trouble. : ; : ^

6

. Stop the engine, disconnect the spark

plug wire and prevent it from touching the

spark plug, whenever you leave the oper
ating position, before unclogging the tines,
or when making any repairs, adjustments
or inspections.

7. Take all possible precautions when leav
ing the machine unattended. Stop the en

gine. Disconnect the spark plug wire and

move it away from the spark plug. Be sure

that both wheels are in the Wheel Drive po­sition.;:T::;.V:: T - , V.V:;;v,

8. Before cleaning, repairing, or inspect
ing, stop the engine and make certain ail
moving parts have stopped. Disconnect

the spark plug wire and prevent it from
touching the spark plug to prevent acci
dental starting. : : ^

9. The flap on the tine hood must be down

when operating the tiller. ::: :'

10. Never use the tiller unless proper

guards, plates, or other safety protective
devicesare in place. ; :

11. Do not run the engine in an enclosed

area. Engine exhaust contains carbon

monoxide gas, a deadly poison that is

odorless, colorless, and tasteless. ;:

12. Keep children and pets away.': : :::

13. Never operate the tiller under engine

power if the wheels are in the Freewheel
position. In the Freewheel position, the

wheels will not hold the tiller back and the

revolving tines could propel the tiller rapid
ly, possibly causing loss of control. Always

engage the wheels with the wheel drive

pins in the Wheel Drive position before

starting the engine or engaging the
tines%heels with the Forward Clutch Bail

(all models) or the Reverse Clutch control
(Models 634F/634B only). ;;::: : :::::

14. Be aware that the tiller may unex

pectedly bounce upward or jump forward

if the fines should strike extremely hard

. ^ u gine-governor settings on the machine;

packed soil frozen jround, or tiuried ob

ff in doubt about the tilling conditions, al
ways use the following operating precau
tions to assist you in maintaining control
of the tiller; - ^

a. Walk behind and to one side of the

filler, using one hand on the handle
bars Relax your arm, but use a
secure band grip.

b. Use shallower depth regulator

settings, working gradually deeper

with each pass.
c. Use slower engine speeds.
d. Clear the tilling area of all large

stones, roots or other debris.
e. Avoid using downward pressure on

the handlebars. If need be, use

slight upward pressure to keep the

tines from digging too deeply.
f. Before contacting hard packed soil

at the end of a row, reduce engine

speed and lift the handlebars to

raise the tines out of the soil.
g. In an emergency, stop the fines and

wheels by releasing whichever

clutch control is engaged. Do not

attempt to restrain the tiller.

15. Do not overload the tlHer’s capacity by
attempting to till too deeply at too fast a

rate. V:'

16. Never operate the tiller at high trans
port speeds on hard or slippery surfaces.
Look behind and use care when backing

17. Do not operate the tiller on a slope that
is too steep for safety. When on slopes,
slow down and make sure you have good
footing. Never permit the tiller to free
wheel down slopes.' : : : ; \

18. Never allow bystanders near the unit.

19. Only use attachments and accessories
that are approved by the manufacturer of
the tiller; : : T

20. Use tiller attachments and accessories
when recommended. : : : : ( : : : :

21. Never operate the tiller without good
visibility or light,

22. Never operate the tiller if you are tired;
or under the influence of alcohol, drugs or
medication. ' '

23. Operators shall not tamper with the en-

s acles like large stones, roots, or

slumps, y y y y y y y y y y y y y y y y y moving parts from damage caused by

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

24. Do not touch engine parts which may
be hotfrom operation. Let parts cool down

sufficiently. : : : , : :

25. Please remember; You can always stop

the tines and wheels by releasing the For
ward Clutch Bail or on Models 634F and
634B the Reverse Clutch control, (which
ever control Is engaged), or by moving the

ignition switch andbr throttle control lever

on the engine to “OFF” or “STOP”. :

26. To load or unload the tiller, see the in

structions in Section 4 of this Manual. ':

27. Use extreme caution when reversing

or pulling the machine towards you. :

28. Start the engine carefully according to
instructions and with feet well away from

thetines.■

29. Never pick up or carry a machine while

the engine is running.

Maintenance and Storage

1. Keep the tiller, attachments and acces

sories in safe working condition. ::'::

2. Check all nuts, bolts, and screws at

ervals for proper tightness to be sure the
equipment is in safe working condition.:

3. Never store the tiller with fuel in the fuel

tank inside a building where ignition sourc
es are present such as hot water and space

heaters, furnaces, clothes dryers, stoves,

electric motors, etc.). Allow the engine to
cool before storing the unit In any encio­sure, f

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

cessive grease. : V

5. Store gasoline in a cool, well-ventilated

area, safely away from any spark- or

flame-producing equipment. Store gaso

line in an approved container, safely away

from the reach of children. :::::: \

6

. Refed to the Maintenance sections of

this Manual and the separate Engine Own
er’s Manual for Instructions if the unit is to

be stored for an extended period.: ff

7. Never perform maintenance while the

engine is running or the spark plug wire is
connected, except when specifically in
structed to do so. : : : v : L

8. If the fuel tank has to be drained, do this

outdoors., Llf) If) If) If) If) If) If) If) If),':

...........

Decals,

For your safety and the safety of others, vari
ous safety and operational decals are located
on your unit (see Figure 1-2). L;

Keep the decals clean and legible at all times.
Contact your local service dealer or the factory
for replacements if any decals are damaged or

missing.''"v

Referto the Parts List pages in this Manual for
decal locations, descriptions and part num

bers.

Operating Symbols

\Mriasspibcfe (shown heie,wlh wot! descr^^
may be used on fhe toaid ai^ne.
NOTE Ymurim^rKÉÎm/ealofÿie^mlxÈ.

FAST SLOW

STOP

• READ THE OWNER’S MANUAL.

• KNOW LOCATIONS AND FUNCTIONS OF ALL CONTROLS.

• KEEP ALL SAFETY DEVICES AND SHIELDS IN PLACE AND WORKING.

• NEVER ALLOW CHILDREN OR UNINSTRUCTED ADULTS TO OPERATE TILLER.

• SHUT OFF ENGINE AND DISCONNECT SPARK PLUG WIRE BEFORE MANUALLY UN
CLOGGING TINES OR MAKING REPAIRS.

• KEEP BYSTANDERS AWAY FROM MACHINE.

• KEEP AWAY FROM ROTATING PARTS.

• USE EXTREME CAUTION WHEN REVERSING OR PULLING THE MACHINE TOWARDS
YOU.

H m R SS

CHOKE

ON

TILLER DIRECTION

CHOKE

OFF

A WARNING

TO AVOID SERIOUS INJURY:

REVERSE

ROTATING TINES

•O'

LEVER DIRECTION

BAIL

ENGAGED

BAIL

DISENGAGED

SECTION 2: ASSEMBLY

WARNING: To prevent

A.

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 instructions in this
manual.

INTRODUCTION

Carefully follow these assembly steps to
correctly prepare your tiller for use. It is

recommended that you read this Section
In its entirety before beginning assembly.:

NOTE: Various tiller models are

presented in this Manual. Use only the

information appropriate for your titter
model.

INSPECT UNIT

Inspect the unit and carton for damage im

mediately after delivery. Contact the carri
er (trucking company) if you find or
suspect damage. Inform them of the dam
age and request instructions for filing a )
claim. To protect your rights, put your
claim in writing and mail a copy to the car

rier within 15 days after the unit has been
delivered. Contact Troy-Biit LLC if you

need assistance in this matter.

TDOLSMATERIALS NEEDED

SB” open-end wrench* *:

(1)

7/16“ open-end wrench*

(2)

1/2" open-end wrench* ;

(2)

9d6“ open-end wrench*

(2)

(1) Large adjustable wrench

;(Models634F/634Bonly) :::
(1) Scissors (to trim plastic ties)
(1) Ruler (for belt tension check)
(1) Block of wood (to support tiller when

removing wheels) / ' : : ■

(1) Tire pressure gauge (for models with

pneumatic tires) ; \ ; /
(1) Clean oil funnel ;;; ; /
(1) Motor oil. Refer to the Engine Owner’s

Manual foroll specifications and
quantity required. : : : : ;

Adjustable wrenches may be used.:::

ASSEMBLY STEPS

STEP1: UNPACKING INSTRUCTIONS

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

1. The tiller weighs approximately 133 lbs.

Do not attempt to remove it from the ship
ping platform until instructed to do so in
these Assembly steps. ::::::; :

2. Remove any packaging material from

the carton. Remove any staples from the
bottom of the carton and remove the car
ton from the shipping platform.; ;

3. Remove all unassembled parts and the

separate hardware bag from the carton.
Check that you have the Items listed in the

Loose Parts List

or the factory items are missing or dam-

(contact your local dealer

aged).,;:'';'^V77^^

NOTE: Use the screw lehQth template

(Fig. 2-1} to identify screws. ; / ...................

Loose Parts List

Qty.

1 Handlebar Support (see A, Fig. 2-2)
1 ; Handlebar Assembly (see K, Fig. 2-2)

....

1 :; Slotted hd. screw, #10-24 x 2"
1 : Hex hd. screw, 1/4-20 x 1-1/4"

6 Hex hd. screw, 5/16-18 x 1-1/2"

2 Hex hd. screw, 3/8-16 x 3/4
2 Flat Washer, 3/8“'

6 Split lockwasher, 5/16"

1 Hex locknut, 1/4"-20

6 Hex nut,5/16“-18 ■;

1 Hex nut, #10-24 :::

2 Hex locknut, 3B"-16

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

(seeR Йд.2-4) / : / ; ;;:

2 Lockwasher, 3/8 i

2 : : ;*Self-tapping screw, 1/4-20 x 1/2

1 *Bracket, reverse clutch cable.................

*Mode! 634F & 634B only : : : : : ; ; ;

IMPORTANT: Motor oil must be added to

the engine crankcase before the engine is
started. Follow the instructions in this
Section and in the separate Engine
Owner’s

NOTE: LEFT and RIGHT sides ofthetiiier

are as viewed from the operator’s position

behind the handlebars. ...............................

Description

Hardware bag contents:

ManuaL; - ;

1-

2-

Figure 2-1: To identify length of screws, place
screw on template as shown and measure dis
tance between bottom of screw bead and tip of
screw, i

................

STEP 2: ATTACH HANDLEBAR

1. Loosely attach the legs of the handlebar
support (A, Fig. 2-2) to the inner sides of
the tiller frame using two 3/8"-16x34" hex

hd. screws (B), 3/8“ flat washers (C), 3/8“
lock washers (GG) and 3/8"-16 hex lock
nuts

2. There are three height adjustment holes

in the two handlebar support brackets (E

and F, Fig. 2-2). Use a setting that will po

sition the handlebars at approximately
waist level when the tines are 3"-4" into the
soil. Loosely attach the support brackets
to the handlebar support (A) using two

:546"-18 x 1-1/2” screws (G), 5/16“ split :

lockwashers (H) and 5/16"-18 hex nuts (I).
NOTE: If a support bracket will not move,
loosen attaching screw (j) and nut. ;

3. Attach the handlebar assembly (K) to

the handlebar support (A) using four 5/

16“-18 X1-1/2" screws (G), 5/16“ split :
lockwashers (H) and 5/16"-18 hex nuts (I).

Tighten the four screws securely, ; :;

4. Tighten all handlebar mounting hard
ware securely. / : : : : : '

STEP S: MOVE TILLER OFF

To roll thetiller off the shipping platform,

put the wheels in freewheel, as follows:

1. Place a sturdy block under the transmis
sion to raise one wheel about 1“ off the
ground.

........................

Fig. 2.2: Attach hantllebar (S.SHPMoitelshown).

2. Remove the hairpin cotter (L, Fig. 2-3)

and wheel drive pin (M) from the wheei

hub (0) and wheel shaft (N). v ' ; : : :

3. Slide the wheel fully inward on the wheel

shaft (N, Fig. 2-3). Reinstall the wheel
drive pin (M) through the wheel shaft only

(not through the wheel hub). Secure the

wheel drive pin with the hairpin cotter (L),

pushing the hairpin cotter in as far as It will

go. The wheel should now spin freely

(freewheel) on the wheel shaft. Repeat

with the other wheels : :.

4. Use the handlebar to roll the tiller to a

flat area. :

IMPORTANT: Before starting the engine,

the wheels must be placed in the WHEEL

DRIVE position (pins through wheei hubs

and wheel shaft). This procedure is
described in idthee/ Drive Pins in Section 3.

Fig. 2-3: Wheel In FREEWHEEL position

STEP 4: INSTALL FORWARD CLUTCH CABLE

1. Attach the forward clutch cable bracket
(P, Fig. 2-4) to the handlebar support (A)

with a 1/4“-20 X1-1/4“ hex hd. screw (R)
and 1/4"-20 hex locknut (S). Tighten se­cureiy.L\L\?:TTTv.'.L'''■ LTL

2. Carefully unwrap the forward clutch ca

ble (cable without an attached knob) from
its shipping position and slide the thin ca
ble wire (T, Fig. 2-4) into the slot in the ca
ble bracket. Push the cable connector (U,
Fig. 2-4) up through the hole in the bracket
until the groove In the connector snaps
into place. : V : : : L

3. Insert the #10-24 x 2" slotted hd. screw

(V, Fig. 2-5) down through the hooked end

of the cable spring (W) until the screw
threads extend through the spring.^

4. Thread the #10-24 hex nut (Z, Fig. 2-5)

halfway onto the screw (V). : : : : :

5. Thread the screw (V) into the cable ad
juster (X). : ï: : ^

6

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

the V-shaped bend in the Forward Clutch

7. Checkforcorrecttension on the forward

drive belt by taking two measurements of
the cable spring, as follows: : : : :

a. With the Forward Clutch Bail {Y, Fig. 2

6) in an open (released) position, measure
the length of the cable spring (W) from the
outermost coil to the outermost coil.

b. Squeeze the Forward Clutch Bail against
the handlebar (see Fig. 2-7) and re-mea
sure the spring length. The belt tension is
correct if this second measurement is be
tween 1/16" to 3d 6“ longer than the first

measurement. If so, turn the hex nut (Z,

Fig. 2-7) tightly against the cable adjuster

(X) while preventing the cable adjuster
from turning. : : : /

c. If the spring length is incorrect, you

must adjust the cable tension as described

in Checking and Adjusting Forward Drive

Beit Tensionm Section 5. Incorrect cable

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

movement when the clutch bail is in Neu
tral (cable tension too tight). ::::::::::::::::

Fig. 2-7: To check forward belt tension, take two measurements of the length of the coils in the
spring—first with the bail open, then with the bail held against the handlebar. ^ ^

STEP 5: INSTALL REVERSE CLUTCH
CABLE (MODELS 634F & 634B ONLY)

1. Unwrap the reverse clutch cable (CC,
Fig. 2-8 and Fig. 2-9) from its shipping po
sition and route it up to the handlebar. Be
sure that the cable is routed beneath the
Forward Clutch Bail. : / : : )

2. Using the two self-tapping screws (AA,

Fig. 2-8) secure the reverse cable mount
ing bracket (BB)to the handlebars, as);
shown.'.

3. Insert the cable (CC, Fig. 2-8) throughthe

slot in the cable bracket and position the flat
side of the threaded assembly next to the
flat side of the hole. Slide the hex nut (DD)
up the cable and tighten it securely.; : :::

Fig. 2-8: Install reverse cable bracket and
reverse clutch cable. F::::::::::::::::::::::::::

4. Fasten the reverse clutch cable to the

left side handlebar with a cable tie (EE, Fig.
.

......................................................

5. Test the function of the reverse clutch by
pulling out and releasing the cable knob.
The knob should return to its neutral posi
tion (resting against bracket). If it doesn’t,
contact your local dealer or Troy-Bilt LLC
for technical assistance.; : / : / :: ;

Fig. 2-5: Cable Fig. 2-6: Attach forward
spring and dutch cade spring to
adjuster. forward dutch bail.

Fig. 2-9: Route reverse dutch cable (CC) as
shown. Attach withcadd tie (EE).

bibKij: uHbuKLbVbLub

The transmission was filled with gear oil at
the factory. However, you should check the
gear oil level at this time to make certain it

Is correct.

IMPORTANT: Do not operate the tiller if the

gear oil level is low. Doing so will result in
severe damage to the transmission com

ponents.

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

from the transmission housing cover and

locate the main drive shaft situated inside
the housing.

3. The gear oil level is correct if the gear
oil is approximately halfway up the side of
the main drive shaft.

4. If the oil level is low, add gear oil by re

ferring to k To Check the Transmission

Gear Oii Level in Section 5.

sibK /: Auu Mu I UK uiL

The tiller Is shipped without o\\ in the en
gine.

IMPORTANT: Do not start the engine with

out first adding motor oil. Severe engine
damage will result if the engine is run with
out oil.

1. Refer to the separate Engine Owner’s
Manual for engine oii 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 En
gine Owner’s Manual.

4. Move the Depth Regulator Lever all the

way down until the highest notch is en
gaged. This places the tines in the “travel”

position, which allows the tiller to be
moved without the tines touching the
ground.

STEPS: CHECK HARDWARE

Check all nuts and screws for tightness.

STEP 9: CHECK AIR PRESSURE IN TIRES (units with pneumatic tires)

On tires equipped with air valves, check
the air pressure with a tire gauge. Deflate
or Inflate the tires equally to between 15

PSI and 20 PSI (pounds per square inch).
Be sure that both tires are Inflated equally
or the unit will pull to one side.

iiviPuHTANT: Tnis completes tne assemoiy steps.

Before operating your tiller, make sure you read the
following sections in this Manual, as well as the
separate Engine Owner’s Manual:

• Section 1: Safety

• Section 3: Features and Controls

• Section 4: Operation

Fig. 2-11: Remove gear oil fill plug.

SECTION 3: FEATURES AND CONTROLS

WARNING: Before

A.

INTRODUCTION

This Section describes the location and
function of the controls on your tiller. Re
fer to the following Section, Operation ior
detailed operating Instructions.

Practice using these controls, with the en
gine shut off, until you understand the op
eration of the controls and feel confident
with each of them.

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 persona! injury.

ENGINE CONTROLS

Refer to the engine manufacturer’s Engine
Owner’s Manual (Included in the tiller liter
ature package) to identify the controls on
your engine.

IMPORTANT: The control for stopping the

engine is located on the engine.

WHEEL DRIVE PINS

Each wheel is equipped with a wheel drive

pin (A, Figures 3-2 and 3-3) that secures
the wheel to the wheel shaft (B). The
wheels can be positioned In either a
WHEEL DRIVE or a FREEWHEEL mode.

WARNING: Never allow

A

Before starting the engine, put both wheels

In the WHEEL DRIVE position by inserting
the wheel drive pins through the wheel

hubs and the wheel shaft. Doing so
“locks" the wheels to the wheel shaft,
causing the wheels to turn when either the

either of the wheels to be in the
FREEWHEEL position when the

engine is running. Always put
both wheels in the WHE^
DRIVE position before starting
the engine.
Failure to comply could cause
loss of tiller control, property
damage, or personal injury.

Figure 3-1: Tiller features and controls (S. HP Model shown). SeeSeparate Engine Owner’s

Manual to identify engine controls. ...................................................................................

Forward Clutch Bail (all models) or the Re
verse Clutch Control (Models 634F and
634B) is engaged.

Use the FREEWHEEL mode only when the
engine Is not running. In FREEWHEEL, the
wheel drive pins are placed only through
the holes in the wheel shaft (not the wheel
hubs), thus allowing the wheels to turn
freely when you manually move the tiller.

To place the wheels in WHEEL DRIVE or
FREEWHEEL:

1. Stop engine, disconnect spark plug wire
from spark plug and allow engine to cool.

WARNING: Do not place

A

2. Raise one wheel about one inch off the

ground and place a sturdy support under
the transmission.

3. Remove hairpin cotter (C, Figures 3-2

and 3-3) from wheel drive pin (A).

4. FOR WHEEL DRIVE MODE (Figure 3-2):

Slide wheel outward and align holes in

tiller on its side when changing
wheel drive positions. Doing so
couid result in gasoline leaking
from the fuel tank.

Failure to follow this instruction
could result in persona! injury
or property damage.

Figure 3-2: WHEEL DHIVE position.

wheel hub (D, Figure 3-2) and wheel
shaft (B). Insert wheel drive pin (A)
through wheel hub (D) and wheel
shaft (B). Secure wheel drive pin with hair

pin cotter (C) by pushing hairpin cotter in
as far as it will go. Repeat with the other
wheel and then remove the support from

beneath the transmission.

5. FOR FREEWHEEL MODE (Figure 3-3):
Slide the wheel Inward and insert the wheel
drive pin (A, Figure 3-3) only through the

hole In the wheel shaft (B). Secure wheel
drive pin with hairpin cotter (C) by pushing

hairpin cotter in as far as it will go. Repeat
for the other wheel and then remove the
support from beneath the transmission.

10