Troy-Bilt 634BM User Manual

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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

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- (330) 558-7220 or 1- (866) 840-6483 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

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. : ; : ^

. 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. :::::: \

. 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

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

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; - ;

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: : ^

. 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

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

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

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.

WARNING: Before starting

FORWARD CLUTCH BAIL

Th Forward Clutch Bail (E, Figure 3-4) con trols the engagement of forward drive to the wheels and tines.

To operate the Forward Clutch Bail:

1. Put wheels in WHEEL DRIVE position (see “WARNING" statement above).

2. Lift and hold the clutch bail (E, Figure 3

4) against the handlebar to start the wheels

and tines rotating in a forward direction.

3. Release the clutch bail to disengage (stop) the wheels and tines (the engine will

continue to run).

REVERSE CLUTCH CONTROL (Models 634F/634B only)

The Reverse Clutch Control {F, Figure 3-4) controls the engagement of reverse drive to the wheels and tines. The reversing

feature is used for maneuvering the tiller only — never engage the tines in the ground while operating in reverse.

engine, be sure that both wheels are in WHEEL DRIVE position. See WhesI Drive Pins for instructions. Engaging the Forward Clutch Bail or Reverse Clutch Control {if equipped) when the wheels are not in WHEEL DRIVE could allow the tines to rapidly propel the tiller forward or backward. Failure to compiy could cause loss of tiller control, property damage, or personal injury.

WARNING: Use extreme

To operate the Reverse Clutch Control:

1. Put wheels in WHEEL DRIVE position (see “WARNING” statement at the left).

2. Stop all tiller motion by releasing the

Forward Clutch Bail.

3. Lift the handlebar until the tines clear

the ground, look behind you to avoid any obstacles, and then pull the control knob (F, Figure 3-4) out. The wheels and tines will rotate in a reverse direction.

4. Release the control knob to disengage

(stop) the wheels and tines (the engine will continue to run).

Figure 3‘4: Aii modeis have a Forward dutch Bail (E). Only Models 634F/634B have a Re verse dutch Control (F). ^ ^ ^

DEPTH REGULATOR LEVER

This lever (G, Figure 3-5) controls the till ing depth of the tines. Pull the lever back and slide it up or down to engage the notched height settings.

The “travel position" (highest notch) raises the tines approximately 1-1/2“ off the ground, allowing the tiller to be moved without the tines contacting the ground. This setting should also be used when starting the engine.

Moving the lever upward wiil increase the tilling depth. The lowest notch allows a till ing depth of approximately 6”, depending on soil conditions. For best results, always

caution when 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.

begin tilling at a very shallow depth setting

and gradually increase the tilling depth.

WARNING: Do not attempt

Figure 3-5: Depth Regulaiorlever (G).

HANDLEBAR HEIGHT ADJUSTMENT

The handlebar height is adjustable to three different settings (Figure 3-6). In general, adjust the handlebars so they are at waist

level when the tines are 3“-4" in the soil.

To adjust the handlebars:

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

2. Remove hardware, reposition handle

bars, and reinstall hardware securely.

Figure 3-6: Handlebar height adjustment.

to till too deeply too quickly. Gradually work down to deeper tilling depths. Place the Depth Regulator Lever in the “travel” position before starting the engine. This position prevents the tines from touching the ground until you are ready to begin tilling. Failure to follow this warning could result in personal injury or property damage.

SECTION 4: OPERATION

WARNING: Before

operating your machine, carefully read and understand all safety (Section 1), controls (Section 3) and operating instructions (Section 4) 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.

INTRODUCTION

Read this Operai/oo Section and the sepa rate Engine Owner’s Manual before you

start the engine. Then, take the time to fa

miliarize yourself with the basic operation

of the tiller before using it In the garden.

Find an open, level area and practice using

the tiller controls without the tines engag

ing the soil (put tines in “travel” setting).

Only after you’ve become completely fa

miliar with the tiller should you begin using It in the garden.

BREAK-IN OPERATION

Perform the following maintenance after

the first two (2) hours of new operation

(see Maintenance Section in this manual

and in the Engine Owner’s Manual).

1. Change engine oil.

2. Checkfor loose or missing hardware on

unit. Tighten or replace as needed.

3. Check tension on forward drive belt.

4. Check transmission gear oil level.

STARTING AND STOPPING

Pre-Start Checklist

With the spark plug wire disconnected from the spark plug, perform the following checks and services before each use:

1. Read the Safety and Controls Sections

In this manual. Read the separate Engine

Owner’s Manual provided with the unit.

2. Put the wheels in the WHEEL DRIVE

position (wheel pins must be through holes in wheel hubs and wheel shaft).

3. Check unit for loose or missing hard ware. Service as required.

4. Check engine oil level. See Engine

Owner’s Manual.

Reverse Clutch Control

(Models 634F/634B)

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

5. Check that all safety guards and covers are in place.

Fig.4-1

........

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

6. Check air cleaner and engine cooling

system. See Engine Owner’s Manual.

WARNING: GASOLINE IS

7. Fill the fuel tank with gasoline according to the directions in the separate Engine Owner’s Manual. Follow all instructions and safety rules carefully.

8. Attach spark plug wire to spark plug.

Starting the Engine

The following steps describe how to start and stop the engine.

HIGHLY FLAMMABLE AND ITS VAPORS ARE EXPLOSIVE.

Follow gasoline safety rules in this Manual (see Section 1) and

in the separate Engine Owner’s

Manual.

Failure to follow gasoline safety

instructions can result in serious personal injury and

property damage.

WARNING: Do not attempt

to engage the tines or wheels

until you have read all of the operating instructions in this Section. Also, review the safety

rules in Section 1: Safety, and the tiller and engine controls

information in Section 3:

Features and Controls.

1. Complete the Pre-Start Checklist on

this page.

2. Put the wheels In the WHEEL DRIVE po

sition (see Wheel Drive Pins in Section 3 of this manual).

WARNING: To help

prevent serious personal injury or damage to equipment:

• Before starting engine, put both wheels in the WHEEL DRIVE position. Never

have wheels in FREEWHEEL position when engine is running. When the wheels are in FREEWHEEL, they do not hoid back the tiller and the tines couid propel the tiiler rapidly ward or backward.

• Before starting engine, put Forward

Clutch Bail (all models) and Reverse Clutch Control (Models 634F/634B only)

in neutral (disengaged) positions by re leasing levers.

• Never run engine Indoore or in en

closed, poorly ventilated areas. Engine exhaust contains carbon monoxide, an odorless and deadly gas.

• Avoid engine muffler and nearby areas.

Temperatures in these areas may exceed 150oF.

3. Move the Depth Regulator Lever all the

way down to the “travel” position, so that the tines clear the ground.

4. Release all controls on the tiller.

5. On engine’s with a fuel shut-off valve,

turn valve to open position, as instructed

in the separate Engine Owner’s Manual.

. Put Ignition switch and/or throttle con

trol lever located on engine In the “ON”, “RUN”, “FAST” or “START” position, as in structed in the Engine Owner’s Manual.

7. Choke or prime engine, as instructed in Engine Owner’s Manual.

8. Put one hand on fuel tank to stabilize unit when pulling starter rope handle.

Then use recoil starter to start engine, as

instructed in the Engine Owner’s Manual.

When engine starts, gradually move choke

lever (if so equipped) to “NO CHOKE”,

“CHOKE OFF” or “RUN” position.

9. Use the “FAST” throttle speed setting

when tilling.

A WARNING

KEEP AWAY FROM ROTATING TINEG.

ROTATING TINES WILL CAUSE INJURY.

Stopping the Engine and Tiiler

1. To stop the wheels and tines, release the Forward Clutch Bail (all models) or the Re

verse Clutch Control (Models 634F and 634B) — whichever control Is in use.

2. To stop the engine, put the ignition

switch and/or the throttle control lever in the “OFF" or “STOP" position.

OPERATING THE TILLER

The following operating instructions pro vide guidelines to using your tiller effec tively and safely. Be sure to read Tilling

Tips & Techniques in this Section before

actually putting the tines into the soil.

NOTE: This is a traditional “Standard-Ro-

tating-Tine” (SRT) tiiler with forward ro tating tines, it operates completely differently from “Counter-Rotating-Tine"

(CRT) tillers or from front-tine tillers.

1. Follow the Pre-Start Checklist at the beginning of this Section. Be sure that the

wheels are in the WHEEL DRIVE position.

2. Move the Depth Regulator Lever ail the

way down, so that the tines clear the ground. Use this position when practicing with the tiller and when traveling between tilling sites. Before actually tilling, move the lever to the desired depth setting (see

Tilling Tips & Techniques).

3. Start engine and allow it to warm up.

Then put throttle in “FAST” setting.

4. For forward motm of the wheels and

tines: (a) Pull Forward Clutch Bail (Fig. 4-1) up against handlebar. Release bail to stop for ward motion of wheels and tines. (b) When tilling, relax and let the wheels pull the unit while the tines dig. Walk be hind and a little to one side of the unit. Use one hand, yet keep a light—-but secure— grip on the handlebar (while keeping your arm loose). See Fig. 4-2. Let the unit move at its own pace and do not push down on the handlebars to try and force the tines to dig deeper—this takes weight off the wheels, reduces traction, and caus es the tines to try and propel the tiller.

WARNING: Do not push

5. For reverse motion of the wheels and tines (Models 634F/634B only):

(a) Look behind and exercise caution when operating in reverse. Do not till while In

reverse.

(b) Stop all forward motion. Lift handle bar with one hand until tines are off the ground and then pull Reverse Clutch Con trol knob out (see Fig 4-3) To stop revers ing, let go of Reverse Clutch Control knoo.

down on the handlebars to try to make the tiller till more deeply. This prevents the wheels from holding the tiller

back and can allow the tines to

rapidly propel the tiller forward, which could result in loss of control, property damage, or

personal injury.

(b) Swing the handlebar to the left so the

right wheel takes a “step" backward. Next swing the handlebar to the right so the left wheel “steps” backward. Repeat as needed.

in reverse, shut off the engine, then place the two wheels in FREEWHEEL

7. To Turn the Tiller Around:

(a) Practice turning the tiller in a level, open area. Be very careful to keep your feet and legs away from the tines.

(b) To begin a turn, lift the handlebars until the tines are out of the ground and the engine and tines are balanced over the wheels (Fig. 4-4).

handlebar to steer in direction of turn (Fig. 4-5). After turning, slowly lower tines into soil to resume tilling.

Fig. 4-4: To begin turn, Hit handiebars until tines are out of ground and unit is balanced.

Fig. 4-2: Use one band to guide tiller when moving forward.

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

Fig. 4-5; With tines out of ground, push han dlebars sideways to turn tiller.

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

Fig. 4-3: Raise tines off ground and look Stopping the Tiller and Engine

behind when moving in reverse.

........

........... jq g^gp ;^f^gg|g (¡pgg^ release

6. TO move the Model 630C in reverse lor H* f»™" C“* fall short distances: S?' I““".®'® “''f ““

(a) Release forward Clutch Bail. Then lift „ ^ * ^k ■ * *k ■ handlebar until tines are off the nround

^ ■ switch andDr the throttle control lever in

the “OFF” or “STOP” position.

TILLING TIPS & TECHNIQUES

Tilling Depths

WARNING: Before

• When cultivating (breaking up surface soil around plants to destroy weeds, see Fig. 4-9), adjust the tines to dig only 1“ to 2“ deep. Using shallow tilling depths helps prevent injury to plants whose roots often grow close to the surface. If needed, lift up on the handlebars slightly to prevent the tines from digging too deeply. (Cultivating on a regular basis not gnly eliminates weeds, it also loosens and aerates the soil

for better moisture absorption and faster plant growth.) .................................................................................................................................

tilling, contact your telephone or utilities

company and inquire if underground equipment or lines are used on your :: property. Do nottill near buried electric cables, telephone lines, pipes or hoses.

• Avoid pushing down on the handlebars in an attempt to force the tiller to dig deeper. Doing so takes the weight off the powered wheels, causing them to lose traction. Without the wheels helping to hold the tiller back, the tines will attempt to propel the tiller - often causing the tiller to skip rapidly across the ground. (Sometimes, slight downward pressure on the handlebars will help get through a particularly tough section of sod or unbroken ground, but in most cases

this won’t be necessary.) ::::: ' ' ■ ■ ' ' ? ’ : ' 1':: ' ■ : ' :

• Avoid trying to dig too deeply too quickly, especially when busting sod or when tilling soi that hasn’t been tilled for some time. Use shallow depth regulator settings (only an inch or two deep) for the first passes through the soil. With each succeeding pass, dig another inch or two deeper. (Watering the area a few days prior to tilling will make tilling easier, as will letting the newly worked soil set for a day or two before making a final, deep tilling pass.) : ::::::::::::::

Choosing Correct Wheel & Tine Speeds with experience, you will find the “just right” tilling depth and tilling speed combination

\ ;■ .f: ■ ■■ ■ ■ ;■ ;; 'that, is best for your garden., f "■■■'■ ■; :::: '■■■ f::: f; '■■■ ■ ■; '■ f:: ',V' :::

Set the engine throttle lever at a speed to give the engine adequate power and yet allow it to operate at the slowest possible speed...at least

until you have achieved the maximum tilling depth you desire. Faster engine speeds may be desirable when making final passes through the seedbed or when cultivating. Selection of the correct engine speed, in relation to the tilling depth, will ensure a sufficient power level to

do the job without causing the engine to labor. ...............................................................................................................................................

Let the Tiller Do the Work

Whiletilling, relaxand let the wheels pull the tiller along while the tines do the digging. Walk on the side that is not yet finished (to avoid making footprints in the freshly tilled soil) and lightly, but securely grip the han dlebar with just one hand. ::::::::::::::::::::

Avoid Making Footprints

Whenever possible, walk on the untilled

side of the unit to avoid making footprints in your freshly tilled or cultivated soil. Foot prints cause soil compaction that can ham per root penetration and contribute to soil erosion. They can also “plant” unwanted weed seeds back into the freshly tilled

ground. .........................................................

Preparing Seedbeds

• When preparing a seedbed, go over the same path twice in the first row, then

overlap one-half the tiller width on the rest of the passes (see Fig. 6). When fin

ished in one direction, make a second pass at a right angle, as shown in Fig. 4-7.

Overlap each pass for best results (in very hard ground, it may take three or four

passes to thoroughly pulverize the soil.) jj f :: ; j

• If the garden size will not permit lengthwise and then crosswise tilling, then over-

lapthefirstpassesbyone-halfatiller :

width, followed by successive passes

at one-quarter width (see Fig. 4-8).

.....

Fig. 4-8

Avoid Tiding Soggy, Wet Sod

Tilling wet soil often results in large, hard clumps of soil that can interfere with plant ing. if time permits, wait a day or two after heavy rains to allow the soil to dry before tilling. Test soil by squeezing it into a bail. If it compresses too easily, it is too wet to till.

■4.

Fig. 4-6 Fig. 4-7

Cultivating

With planning, you can allow enough room between rows to cultivate I (see Fig. 4-9). Leave room [ for the hood width, ^ _ , plus enough extra room for future plant :::::: p,g growth.

~r^.

1 i I )

1 i

J 1

Power Composting

TILLING TIPS & TECHNIQUES rCONT^

Power composting simply means tilling under and burying in the soil all manner of organic matter such as crop residues, leaves, grass clippings and cover crops. This material will de

compose during the non-growing season and add important natural nutrients to the soil. The first place to begin Is with crop residues such as leftover vines, stalks, stems and roots.

Power compost these crop residues as soon as they finish bearing. The sooner this is done, the better, as tender green matter is easier to till under. Use the deepest depth regulator set ting possible without causing the engine to labor or the tiller to jump ahead. v

Standing cornstalks of reasonabie height can be power composted. Pushing over (but not

uprooting) cornstalks will often make it easierto chop up the stalks. Keep the tines clear of excessive tangling by “fishtailing” or frequently using reverse. Make several passes, then re turn a few days later to finish off any remaining stubble. :

Aftertilling under crop residues, add more organic matter such as leaves, grass clippings and even kitchen scraps. When tilled into the soil, this organic matter will decompose and add even more important nutrients to the soil. : ' : : : : : : : : : \ : : : : : : : : : : : :

After power composting, you may want to plant a “green manure” cover crop to protect the soil during the off-season. You simply grow a crop of clover, alfalfa, buckwheat, peas, beans, rye grass, grain, or kale and then till it into the soil prior to the planting season. : : : : : : : : : ::

.....

WARNING: When power

composting, do not keep the

Depth Regulator Lever at a

deep setting if the tiller Jumps

or bucks. If jumping or bucking occurs,

move the Depth Regulator;: Lever down to a shallow

setting and then slowly

increase the tiiiing depth on later passes. Failure to follow this warning

could result in oersonal iniurv

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

.....

Tilling On Slopes

Read the following recommendations before tilling on slopes:

if you must garden on a moderate slope, please follow two very important guidelines:

1. Till only on moderate slopes, never on steep ground where footing is difficult (review safe

ty rules in Section 1: Safe^ofthismanual), : ; ::: v: Y ::: : y

2. We recommend tilling up and down slopes rather than terracing. Tilling vertically on a slope allows maximum planting area and also leaves room for cultivating.

IMPORTANT: When tilling on slopes, be sure the correct oil level is maintained in the engine

(check every one-half hour of operation). The incline of the slope will cause the oil to slant away from its normal ievel and this can starve engine parts of required lubrication. Keep the

motor oil level at the full point at all times!

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

WARNiNG: Donot

operate tiller on a slope too steep for safe operation. Ti!! slowly and be sure you have

good footing. Never permit tiller to freewheel down slopes. Failure to follow this warning could result in

personal injury.

Tilling Up and Down Slopes (Vertical Tilling)

• To keep soil erosion to a minimum, be sure to add enough organic matterto the soil so that it has good moisture-holding texture and try to avoid leaving footprints or wheel marks. :' ' ': :' ::

• When tilling vertically, try to make the first pass uphill as the tiller digs more deeply going uphill than it does downhill. In soft soil or weeds, you may have to lift the handlebars slightly while going uphill. When going downhill, overlap the first pass by about one-half the width of the tiller.

Tiiiing Across Siopes Without Using Terraces (Horizontal Tiiiing)

• If vertical or terracing gardening aren’t practical for you, then you can till laterally across a slope. We don’t recommend this method as it can create unsure footing and invites soil erosion. ; ' ' : ; : Y : ::: ::: : :::

• As in terrace gardening, start at the top of the slope and overlap the first pass by half the width of the tiller. For added stability of the tiller,

always keep the uphill wheel in the soft, newly tilled soil.

Terrace Gardening

• When a slope is too steep or too short for vertical tilling, it may be necessary to till across the slope and create terraced rows. Terraces

are rows that are cut into the side of a slope, creating a narrow, but flat area on which to plant.

On a long slope, you can make several terraces, one below the other, Y:: ' : :: : ::: ' Y:::

Terraces should be only 2-to-3 feet wide. Digging too far into the side of the slope will expose poor subsoil that is unproductive for plants.

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

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

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

TILLING TIPS & TECHNIQUES rCONT^

Terrace Gardening (continued)

• To create a terrace, start at the top of the slope and work down. Go back and forth

across the first row as shown in Fig. 4-10. : " :::::::: : '

• Each succeeding lower terrace is started by walking below the terrace you’re pre paring. For added stability of the tiller, always keep the uphill wheel in the soft, new ly tilled soil. Do not till the last 12" or more of the downhill outside edge of each

terrace. This untilled strip helps prevents the terraces from breaking apart and 12" untilled washing downhill. It also provides a walking path between rows. a a repeat

Clearing №e Tines

______

Fig. 4-10

The tines have a self-clearing action which eliminates most tangling of debris in the tines. However, occasionally dry grass, stringy stalks ortough vines may be come tangled. Follow these procedures to help avoid tangling and to clean the tines, if necessary. ^ :: ::: t ' ' '' ' :: '' '

• To reduce tangling, set the depth regulator deep enough to get maximum

“chopping” action as the tines chop the material against the ground. Also, try to till under crop residues or cover crops while they are green, moist and tender. :

• While power composting, try swaying the handlebars from side to side (about

6" to 12“). This “fishtailing” action often clears the tines of debris. :

• If tangling occurs, lift the tines out of the soil and run the tiller in reverse (if unit is equipped with powered reverse) for a few feet. This reversing action should unwind a good deal of debris. ^

LOADING AND UNLOADING

THE TILLER

WARNING: Loading and

• Before loading or unloading, stop the en

gine, wait for all parts to stop moving, disconnect the spark plug wire and let the engine and muffler cool, t: ::::: : :

• The tiller is too heavy and bulky to lift ................

safely by one person. Two or more people brake. should share the load.

unloading the tiller Into a vehicle is potentially hazardous

and we don’t recommend doing so unless absolutely necessary, as this could result in persona! injury or property damage. However, if you must load or unload the tiller, follow the: guidelines given next.

........................................ When going up ramps, stand in the

^ normal operating position and push the

• Use sturdy ramps and manually (engine shut off) roll the tiller into and out of the vehicle. Two or more people are needed to

dothis./'.V::::::;:T;:T:: y,;::::: tT;,::::'.,,,;';

• The ramps must be strong enough to support the combined weight of the tiller and any handlers. The ramps should pro vide good traction to prevent slipping; they should have side rails to guide the tiller along the ramps; and they should have a locking device to secure them to the vehicle. ■■■,;■.!!!!

• The handlers should wear sturdy footwear that will help to prevent slipping. :

• Position the loading vehicle so that the ramp angie Is as fiat as possible (the less incline to the ramp, thebetter). Turn the vehicle’s engine oft and apply its parking

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

• It may be necessary to remove the debris by hand (a pocket knife will help you to cut away the mate rial). Be sure to stop the engine and disconnect the spark plug wire before clearing the tines by hand.

WARNING: Before clearing the

tines by hand, stop the engine, allow all moving parts to stop and i disconnect the spark plug wire. :

Remove the ignition key on electric

start models. -

Failure to follow this warning could : result in personal injury. :::::::::::::::

tiller ahead of you. Have a person at each side to turn the wheels. : ;

• When going down ramps, walk back ward with the tiller following you. Keep alert for any obstacles behind you. Posi

tion a person at each wheel to control the

speed of the tiller. Never go down ramps tiller-first, as the tiller could tip forward.

• Place wooden blocks on the downhill side of the wheels if you need to stop the

tiller from rolling down the ramp. Also,

use the blocks to temporarily keep the tiller in place on the ramps (if necessary), and to

chock the wheels in place after the tiller is

in the vehicle. , ;

• After loading the tiller, prevent it from rolling by engaging the wheels in the

WHEEL DRIVE position. Chockthe wheels with blocks and securely tie the tiller down.

......

SECTION 5: MAINTENANCE

WARNING: Before - :

Check motor oil level : Clean engirie ^ ^ \ Check drive belt tension 1,4 ; Check nuts and bolts : , Change motor oil T ^ 4.6,9 Lubricate tiller : / ' : v Service engine air cleaner system Check gear oil level in transmission Check tines for wear : Check air pressure in tires

(if unit has pneumatic tires) Service spark plug

1 2 3 4

5 S-

inspecting, cleaning or servicing themachine, shutoff engine, wait for all moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on electric start : models. : .'

Failure to follow these instructions can result in serious persona! injury or property

MAINTENANCE SCHEDULE

PROCEDURE

2.3

2.7 /:

1.4

1,5 : :

...........

NOTES

Check after first 2 hours of break-in operation. Before each use. Every 5 operating hours. Every 10 operating hours. Every 30 operating hours. Change more frequently in dusty conditions. See Engine Owner's Manual for service

recommedations.

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

8 - Whichever time interval occurs first.

9- Change after first 2 hours of break-in

NOTES

TILLER LUBRICATION

After every 10 operating hours, oil or ^ grease the lubrication points shown in Figure 5-1 and described below. ■ -

Use clean lubricating oil (#30 weight motor oil is suitable) and clean general purpose grease (grease containing a metal lubricant is preferred, If available). ; v :

• Remove the wheels, clean the wheel shaft (A, Fig. 5-1) and apply a thin coating of ; grease to the wheel shaft : : :::: :;

• Grease the back, front and sides of the depth regulator lever (B, Fig. 5-1).

• Remove the tines and clean the tine shaft (C, Fig. 5-1). Use a file or sandpaper to :: gently remove any rust, burrs or rough spots (especially around holes in shaft). Apply grease to ends of shaft before Install ing tines. t.,';:

• Oi! the threads on the handlebar height adjustment screws and the handlebar attaching screws (D, Fig. 5-t). ::::::::::::::

If a cover is leaking, check for loose screws. If the screws are tight, a new gasket or oil seal may be required.

If the leak is from around a shaft and oil seal, the oil seal probably needs to be

replaced. See your authorized dealer or contact the factory for service or advice.

IMPORTANT: Never operate the tiller if

the transmission is low on oil. Check the oil level after every 30 hours of

operation and whenever there is any oil

leakage. '7 '

CHECK HARDWARE

Check for loose or missing hardware af ter every 10 operating hours and tighten

or replace (as needed) before reusing tiller/:::7;VV:':,

Be sure to check the screws underneath the tiller hood that secure the transmis sion cover and the Depth Regulator Lever

to the transmission. '

CHECK TIRE PRESSURE

(Models with pneumatic tires)

Check the air pressure in both tires. The air pressure should be between 15 PSI and 20 PSI (pounds per square Inch),

Keep both tires equally inflated to help

prevent machine from pulling to one side.

TRANSMISSION

GEAR OIL SERVICE

Check the transmission gear oil level after every 30 hours of operation or whenever you notice any oil leak. Oper ating the tiller when the transmission is

low on oil can result in severe damage.

Figure 5‘1

CHECK FOR OIL LEAKS

Before each use, check the tillerforsigns of an oil leak-— usually a dirty, oily accumu lation either on the unit or on the floor. :

A little seepage around a cover or an oil seal Is usually not a cause for alarm. How ever, if the oil drips overnight, then imme diate attention is needed. Ignoring an oil

leak can result in severe transmission

damage/ ■■■■-

A. To Check the Transmission

GearOi! Level:

1. Check the gear oi! level when the transmission is cool. Gear oil will expand in warm operating temperatures and this expansion will provide an incor

rect oi! level reading. : /

2. With the tiller on level ground, pul! the

Depth Regulator Lever all the way up. :

3. Remove the oil fill plug (A, Fig. 5-2) from the transmission housing and look

inside the oil fill hole to locate the main drive shaft situated below the hole.

*r?

WARNING: Before inspecting, cleaning or servicing the machine, shut off engine, wait for all

moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Failure to follow these instructions can result in serious personal injury or property

damage.

4. The gear oil level Is correct if the gear

oil is approximately halfway up the side of the main drive shaft. '

5, If the gear oil level is low, add gear oil as described next. Ifthegearoi! level is okay, securely replace the oil fill plug. / :

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.^::::::::::::::::::::::::::::::::::::::::::

Figure 5-2: Remove oil fiil piug (A) to check

gear oil level and to add gear oil. Remove

four cover screws (B) to drain gear oil.

. If adding only a few ounces of gear oil,

use API rated GL-4 or GL-5 gear oil having a viscosity of SAE 140, SAE 85W-140 or SAE 80W-90. If refilling an empty trans

mission, use only GL-4 gear oil having a viscosity of SAE 85W-140 or SAE 140.

IMPORTANT: Do not use automatic trans

mission fluid or motor oil In the transmis sion. t''

7. While checking frequently to avoid ; overfilling, slowly add gear oil into the oil fill hole until it reaches the halfway point on the drive shaft. : : : : : : y : : : :

8. Securely replace the oil fill plug.

.........

B. To Drain the Transmission Gear Oil:

The transmission gear oil does not need to be changed unless it has been contaminat ed with dirt, sand or metal particles. : t

1. Drain gasoline from the fuel tank or run the engine until the fuel tank is empty. See “DANGER” statement below. :::: : '::

WARNING: Gasoline is :

• Allow the engine and mufflerto cool for at least two minutes before draining the tiller’s gasoline

• Do not allow open flames, sparks, matches or smoking in the area.

• Wipe away spills and push tiller away from spilled fuel.

• Use only an approved fuel container and store it safely out of the reach of chil dren.: vi; :: v LL;;:: y,y::

• Do not store gasoline in an area where its vapors could reach an open flame or spark, or where ignition sources are present (such as hot water and space heaters, furnaces, clothes stoves, electric motors, etc.)

2. Drain the oil from the engine. ': ::

3. Remove four screws (B, Figure 5-2) and remove transmission cover and gasket.:

4. Remove the left-side wheel. :

5. Tilt the left-side wheel shaft into a drain

pan and allow the gear oil to drain through the top of the transmission. ' ''::

6. Reinstall the wheel.

7. Install a new gasket (do not reuse old gasket) and reinstall the transmission cov

er.

highly flammable and its vapors are explosive. Follow these safety practices to prevent ;

personal injury or property damage from fire or explosion,

dryers.

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

: : : '

8. Refill the transmission using GL-4 gear

oil (SAE 85W-140or SAE140). : : : •

9. Refill the engine with motor oil and re

plenish the fuel tank with gasoline. :::::::

BOLD TINES

The bolo tines will wear with use and should be inspected at the beginning of each tilling season and after every 30 oper

ating hours. The tines can be replaced ei ther individually or as a complete set. See the Parts List pages for tine identification

and part numbers, V

A. Tine Inspection:

With use, the tines will become shorter,

narrower and pointed. Badly worn tines will result in a loss of tilling depth, and re duced effectiveness when chopping up and turning under organic matter.: '

B. Removingdnstaliing a Single Tine:

1. With the engine shut off and the spark

plug wire disconnected, remove the two screws (A, Figure 5-3), lockwahers (E) and

nuts (B) that attach a single tine to a tine

holder. If needed, use penetrating oil on the nuts.C'ty:::'". VL':'.": L'T.-'tty

2. When installing a single tine, be sure to

position it so that its cutting edge (sharp)

........

will enter the soil first as the tiller moves

forward.::yv,:ytt'::'.'.L; y

C. RemoviiigTnstaliing a Tine Assembly:

1. A tine assembly consists of eight tines

mounted on a tine holder. ::::::: : (y ::

2. If removing both tine assemblies, mark

them “left” and “right” before removal. :

Remove the screw (C, Figure 5-3), lock washer (E) and locknut (D) that secure the tine assembly to the tine shaft. If neces sary, use a rubber mallet to tap the tine as sembly outward off the shaft, y y

3. Before reinstalling the tine assembly, in

spect the tine shaft for rust, rough spots or

burrs. Lightly file or sand, as needed. Ap

ply a thin coat of grease to the shaft. : -

4. Install each tine assembly so that the

cutting (sharp) edge of the tines will enter

the soil first when the tiller moves forward.

Secure the tine assembly to the tine shaft

using the screw and locknut

*r?

WARNING: Before inspecting, cleaning or servicing the machine, shut off engine, wait for all

moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Failure to follow these instructions can result in serious personal injury or property

damage.

b Unthread the hex nut (C, Figure 5-4)

up the adjustment screw (D).

c. Unhook the top of the spring from

the Forward Clutch Bail. ' ■

d. Use pliers to prevent the adjuster (B) from turning and turn the slotted screw lo cated inside the spring clockwise (viewed from operator’s position) to increase ten sion on the spring. Turn the screw coun terclockwise to decrease tension. Once adjusted, reattach the spring to the For ward Clutch Bail. - : : ^ ^

■ ■ ■■

FRONT/

FORWARD

0. Repeat Steps 2 and 3 to re-measure

the length of the spring. When the second

measurement is between 1/16" -to- 3/16' longerthan the first measurement, retighten

Figure 5-3: Install tines so that cutting edge o1 tines enter soii tirst when tiller moves lorward.

CHECKING AND ADJUSTING

FORWARD DRIVE BELT TENSION

It is important to maintain correct tension on the forward drive belt. A loose belt will cause the tines and wheels to slow down — or stop completely — even though the en gine is running at full speed. A too tight

belt can result in unintentional tine move

ment when the clutch bail is in the Neutral

(released) position. : ; /

• Check belt tension after the first two

hours of break-in operation and after every

10 operating hours. : : :: : : : : t

• At the end of each tilling season, check the belt for cracks, cuts orfrayed edges and replace it as soon as possible.:: T

To Check Forward Beit Tension:

1. Stop engine, wait for all parts to stop

moving and disconnect spark plug wire.

2. With the Forward Clutch Bail in an open

(released) position, measure and note the overall length of the cable spring (A, Figure 5-4) by measuring from the outermost coil to the outermost coiL ^ ^^ ^ ^

3. Squeeze the Forward Clutch Bail against the handlebar (see Figure 5-4) and

re-measure the length of the coils. The.................................................. ............................................................................................

belt tension is correct if this second mea surement is between 1/6" -to- 3/16" longer than the first measurement. / :::: : :

4. If the spring is too short (less than 1/ 16"),thetensionistooloose. If the spring is too long (more than 3/16"), the tension Is too tight.

5. To adjust the length of the spring: a. Release the Forward Clutch Bail. :::::

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

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

overall length of the coils in the spring^ first with the clutch bail open,

then with the clutch bail closed against the handlebar..................

Replacement Belt Information

If the drive belt needs to be replaced, see

your local authorized dealer or refer to the

Parts List for ordering information. Use

only a factory-authorized belt as an “over-

the-counter” belt may not perform satis

factorily. The procedure requires average

mechanical ability and commonly available

tools..':::::::::::::::::::::::::::::::::::::

........

WARNING: Before inspecting, cleaning or servicing the machine, shut off engine, wait for all

moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Failure to follow these instructions can result in serious personal injury or property

damage.

FORWARD CLUTCH BAIL ADJUSTMENT

If the Forward Clutch Bail does not func

tion properly, first check that the forward drive belt is adjusted properly (see Check

ing and Adjusting Forward Drive Belt Ten sion). If this fails to correct the problem,

contact Troy-Bilt LLC or your authorized dealer for service advice.

CHECKING AND ADJUSTING RE VERSE DRIVE BELT TENSION (Models 634F/634B only)

It is important to maintain correct tension on the reverse drive belt. A loose belt will cause the tines and wheels to slow down or stop completely - even though the en gine is running at full speed.

When checking belt tension, also check the

belt for cracks, cuts or frayed edges and

replace it as soon as possible.

• Check belt tension after the first two

hours of break-in operation and after every

10 operating hours.

To Check Reverse Belt Tension:

1. Stop engine, wait for all parts to stop

moving and disconnect spark plug wire.

2. Remove screw in plastic belt cover and slide belt cover (which is attached to for ward clutch cable) out of the way.

3. Have an assistant pull the Reverse Clutch Control knob all the way out and

hold it in that position. Measure the length of the cable wire between the end of the threaded cable adjuster (A, Figure 5-5) and the end of the Z-fitting (B) to which the ca

ble wire is attached.

4. The belt tension is ideal if the cable wire

length measures between 1/8“ to 1/4“. If It

is less than 1/8" (and if there is no reverse action when the tiller is running), then make the following adjustments

NOTE: If the length is more than 1/4", no ad justment is needed—as long as the reverse action functions properly.

5. Release the Reverse Clutch Control knob.and then unthread the inner Jam nut (C, Figure 5-6) one to two turns. Pull the threaded cable adjuster (A, Figure 5-6) to the left until the inner jam nut (C) touches the bracket.

6. Prevent the inner jam nut (C) from turn

ing and tighten the outer jam nut (D) against the bracket. Prevent the outer jam nut (D) from turning and tighten the inner jam nut (C) against the bracket.

7. Measure the gap by repeating Step 3. Readjust as needed by repeating Steps 5

and 6.

8. Reinstall the belt cover.

Figure S-5: Measure eable wire length to check for correct reverse belt tension.

Figure 5-6: Move threaded adjuster (A) to left to increase belt tension.

Replacement Beit Information

If the drive belt needs to be replaced, see

your local authorized dealer or refer to the

Parts List for ordering information. Use only a factory-authorized belt as an “overthe-counter" belt may not perform satis factorily. The procedure requires average

mechanical ability and commonly available tools.

ENGINE CLEANING

Keeping the engine clean will help to en sure smooth operation and prevent dam age from overheating. Refer to the Engine Owner’s Manual for engine cleaning ser vice intervals and instructions. Be sure that the muffler is cool before servicing the engine.

AIR CLEANER SERVICE

The air cleaner filters dirt and dust out of the air before it enters the carburetor. Op erating the engine with a dirty, clogged air filter can cause poor performance and damage to the engine. Never operate the engine without the air cleaner installed. I nspect and service the air cleaner more of ten if operating in very dusty or dirty conditions. Refer to the engine Owner’s

Manual for air cleaner service intervals and

instructions.

ENGINE OIL SERVICE

Check the engine oil level before each use and after every five hours of continuous operation. Running the engine when it is

low on oil will quickly ruin the engine.

It is recommended that you change the

motor oil after every 10 hours of operation and even sooner when operating in ex tremely dirty or dusty conditions. Refer to the Engine Owner's Manual for detailed service instructions.

A. To Check the Engine Oil Level:

1. Park the tiller on a level area and shut off the engine.

2. Level the engine (use the Depth Regu

lator Lever to adjust the engine angle).

*r?

WARNING: Before inspecting, cleaning or servicing the machine, shut off engine, wait for all

moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Failure to follow these instructions can result in serious personal injury or property

damage.

3. Clean around the oil dipstick or oil fill tube (whichever applies) to prevent dirt from falling into the crankcase.

4. On engines with an oil fill tube, remove the fill cap and add oil (if required) until it

reaches the top of the fill tube. Reinstall

the fill cap.

5. On engines with a dipstick, remove it and wipe it clean. Reinsert the dipstick, tighten it securely, and remove it. Add oil as needed to bring the level up to the FULL

mark. Wipe dipstick clean each time oil level is checked. Do not overfill. Tighten

dipstick securely.

B. To Change the Engine Oil:

Change the engine oil as instructed in the

Engine Owner's Manual.

SPARK PLUG SERVICE

Inspect and clean or replace the spark plug

after every 100 operating hours or annual

ly. Refer to the Engine Owner’s Manual for

spark plug service instructions.

In some areas, local law requires using re

sistor spark plugs to suppress ignition sig

nals. If the engine was originally equipped with a resistor spark plug, use the same type for replacement.

SPARK ARRESTER SCREEN SERVICE

If the engine muffler is equipped with a spark arrester screen, remove and clean it according to the service intervals and in structions in the Engine Owner’s Manual.

THROTTLE LEVER ADJUSTMENT

If the engine does not respond to various throttle lever settings, refer to the Engine Owner's Manual for service information or contact your local authorized engine deal er.

WARNING: Operators

shall not tamper with the engine governor settings on the

machine; the governor controls the maximum safe operating speed to protect the engine and all moving parts from damage caused by overspeed. Authorized service shall be sought if a problem exists.

CARBURETOR/GOVERNOR CONTROL ADJUSTMENTS

The carburetor was adjusted at the factory for best operating speed. Refer to the En gine Owner’s Manual for any adjustment information or see your authorized engine dealer.

The governor controls the maximum safe operating speed and protects the engine and all moving parts from damage caused by overspeeding. Do not tamper with the engine governor settings.

OFF-SEASON STORAGE

When the tiller won’t be used for an ex tended period, prepare itfor storage as fol

lows;

1. Clean the tiller and engine.

2. Do routine tiller lubrication and check for loose parts and hardware.

3. Protect the engine and perform recom mended engine maintenance by following

the storage instructions found in the En gine Owner’s Manual. Be sure to protect the fuel lines, carburetor and fuel tank from gum deposits by removing fuel or by treating fuel with a fuel stabilizer (follow engine manufacturer’s recommendations).

4. Store unit in a clean, dry area.

5. Never store the tiller with fuel in the fuel

tank in an enclosed area where gas fumes could reach an open flame or spark, or where ignition sources are present (space

heaters, hot water heaters, furnaces, etc.).

WARNING: Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to a complete stop, disconnect spark plug wire and move wire away from

spark plug. Failure to follow these instructions can result in serious personal injury or property

damage.

TROUBLESHOOTING

PROBLEM

Engine does not start

Engine runs poorly.

Engine overheats.

Engine does not shut off Wheels and Tines will not turn

Tines turn, but wheeis don’t.

Wheeis Turn, hut Tines Don’t.

Poor tilling performance.

POSSIBLE CAUSE..........................

1. Spark plug wire disconnected,

2. Engine Throttle Control Lever incorrectly set.

3. Fuel tank empty. ;

4. Choke control (if so equipped) in incorrect position

5. Siaie gasoline.

0. : Dirty air fiiter.

7. Defective or incorrectly gapped spark plug.

8. Carburetor out of adjustment. L L

9. Misadjusted throttle control.

10. Dirt or water in fuel tank.

Defective or incorrectly gapped spark plug.

Dirty air filter(s). L :)

Carburetor out of adjustment.

Stale gasoline. L L

Dirt or water in fuel tank. L

Engine cooling system clogged.

1. Engine cooling system clogged.

2. Carburetor out of adjustment. :

3. Oil level is low.

1. Misadjusted throttle control or ignition switch. 1. See Engine Owner’s Manual or Engine Service Dealer.

Improper use of controls. ,

Worn, broken, or misadjusted drive beit(s).

Internal transmission wear or damage.

4. Bolt loose in transmission pulley.

Wheel Drive Pins not In WHEEL DRIVE.

Bolt loose in transmission pulley.

3. Internal transmission wear or damage.

Tine holder mounting hardware missing.

Bolt loose In transmission pulley,

internal transmission wear or damage.

Worn lines.

improper Depth Regulator setting,

incorrect throttle setting, : :

Forward Drive Belt slipping,

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

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

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

.........

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

.....

Reconnect wire.

Put lever in START position.

;

Add fuel. : :

See Engine Owner’s Manuai.

Drain fuel and add fresh fuel.

Clean or replace filter,

Inspect spark plug.

See Engine Service Dealer.

See Engine Service Dealer

See Engine Service Deaier.

1. Inspect spark plug (see Engine Owner’s Manual).

2. Clean or replace (see Engine Owner’s Manuai).

3. See Engine Service Deaier.

4. Replace with fresh gasoline.

5. : See Engine Service Dealer.

6. Clean air cooling system (see Engine Owner’s Manuai).

1. Clean air cooling area (see Engine Owner’s Manual).

2. See Engine Service Dealer. '' ) ::

3. Check oil level (see Engine Owner’s Manuai).

1. Review Sections 3 and 4. I) )

2. See “Checking Drive Belt Tension," Section 6.

3. Contact local dealer or the factory. ::::: ::::

4. Tighten bolt. .............................................................

1. See “Wheel Drive Pins” in Section 3.

2. Tighten bolt.

3. Contact local Dealer or the Factory.

1. Replace hardware. 7 7 7

2. Tighten bolt. \ 7 7 7

3. Contact local Dealer or the Factory,

See “Boio Tines” (Section 5).

See “Tilling Tips & Techniques,”

See Section 4. 7 7

See “Checking Forward Drive Belt Tension," Section 5.

CORRECTION

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

' :

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

Section 4.

SECTION 6: MODELS 630C, 634F & 634B PARTS LIST

REF NO.

1 2 710-0597 Flex Fid. Screw, 1/4-20 x 1 3 710-0599 Screw, Self-Tapping, 1/4-20 x 1/2 4 710-0874 HexHd.Screw,5/16-18x1-1/4 GW-55024 Tine Hood Assembly (A) 5 6 712-0291 7 712-3004A 8 712-3009 9 10 11

PART NO. DESCRIPTION

1185469

710-3039

736-0119 GW-55013-1 GW-55013-2

Spirot Pin 12

Hex Hd.Screw, 5/16-18x1/2 Hex Lock Nut, 1/4-20 16 GW-9384 Spring, Depth Regulator Hex Flange Lock Nut, 5/16-18 Hex Nut, 5/16-18 Lock Washer, 5/16 Hood Bracket, Left Hand Hood Bracket, Right Hand

REF NO.

13 GW-55018 14

15 GW-55088

17 GW-9534 Spacer 18 1186331 19 618-04000 Transmission Assembly (B)(C)

PART NO.

GW-55015 Drag Bar

Depth Regulator Lever

1916623

618-04001 Transmission Assembly (A)

Tine Hood Assembly (B) (C)

Bushing

Hex Hd. Flange Screw, 5/16-18x1

DESCRIPTION

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

MODELS 630C, 634F & 634В

MODELS 630C, 634F & 634B

REF NO.

1 2 3 1917479 4 5 6 7 8 9 GW-55043

10 GW-55102

11 GW-55044 Tab, Conduit Mount

15 1916674 Bracket, Reverse Clutch Cable{B) (C)

18 710-0216 20 710-0805 Screw, Hex, 5/16-18x1-1/2 21 712-0121 Hex Nut, #10-24 22 23 25 736-0119 Lock Washer, 5/16

PART NO. DESCRIPTION

1918745 710-0599 Screw, Self-Tapping,1/4-20 x 1/2 710-3008 712-3009 Hex Lock Nut, 5/16-18 GW-55042 Handlebar Support

GW-9855 725-0157 Cable Tie 736-3050

1916712 Spring, Forward Clutch 710-0106

712-0291 712-3000

Upper Handlebar Bail, Forward Clutch Gable Assembly, Forward Clutch

Screw, Hex, 5/16-18x3/4

Lower Handlebar Panel

Screw, #10-24x2

Flat Washer, 3/8

Hex Hd. Screw, 1/4-20x1-1/4 Screw, Hex, 3/8-16 x 3/4

Hex Lock Nut, 1/4-20 Hex Nut, 3/8-16

REF NO.

1 2 3 4 736-0119

PART NO.

1918749 Bumper (C)

710-3073 Hex Screw, 5/16-18x2-1/4(0 712-0267

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

DESCRIPTION

Nut, Hex, 5/16-18 (C) Lock Washer, 5/16(C)

MODELS 630C, 634F & 634В

(A) For Mode! 630C (B) For Mode! 634F

REF N0.

1 GW-9517 2 GW-1714 Bearing, Tapered Roller (with race) 3 GW-50043 4 1904277 5

Use as required to obtain between .005” and .015” allowable end-play.

PART N0. DESCRIPTION

Snap Ring

Support Washer, Rear Drive Shaft (A) (B|(G|

GW-1224-1* Shim, Rear Bearing Gap, .010“thick GW-1224-2* GW-1224-3* Shim, same as above, except .005" thick GW-1224-4* Shim, same as above, except .062“ thick GW-1325C

Shim, same as above, except .030“ thick

Shim Set (Incl. the following shims:

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

MODELS 63QC, 634F & 634B

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

REF NO.

1 GW-9512 2 3

4 GW-1086 5

6 7 GW-1132-2 Spacer 8 1904278 9

10 GW-1104

Use as required to obtain between .005’’ and .030" allowable end-play.

PART NO. DESCRIPTION

Retainer, Snap Ring, “E” Type 1909950 GW-1166-r Shim, 0.062" thick GW-1166-2* Shim, 0.030" thick GW-1166-3* GW-1166-4* Shim, 0.010" thick GW-1166-5* Shim, 0.005" thick

1916741 GW-55004 Wheei Shaft (A) GW-9305

1915074 Tilier Shaft

1904279

Retainer, Snap Ring

Shim, 0.015" thick

Bronze Bushing

Wheei Shaft (B){C)

Key, Hi-Pro, 1/4x1

Worm Gear, Wheei Shaft

Woodruff Key Worm Gear, Tiller Shaft

MODELS 630C, 634F & 634B

REF NO.

1 GW-9727

2 3 736-0119 4 1918377 Rear Cover, Transmission 11 5 1916641 Front Cover, Transmission 12 6 7 GW-9617

PART NO. DESCRIPTION

Plug, Transmission Oil Fill

710-04049

GW-50032 Gasket, Fiousing Cover

FlexHd. Flange Screw, 5/16-18 x 5/8,Gr. 5 9 Lock Washer, 5/16 10 1909374

Oil Seal, Drive Shaft

13 710-04048 14

Inciuded with transmission when purchased as an assembiy only. Remove and discard when installing the transmission on tiller.

REF NO.

PART NO. DESCRIPTION

GW-9621 1916975

736-3008* 714-04008

710-3008

Oil Seal, Wheel Shaft Transmission Fiousing Assembly Oil Seal, Tine Shaft Washer, Flat, .344x.750x.120 Rear Bearing Gap Flex Fid. Flange Screw, 5/16-18x1 Hex Fid. Flange Screw, 5/16-18 X 3/4

Hold Tines With Blunt End Toward You

MODELS бЗОС, 634F & 634В

t Used on Left side of tiller

^ Used on Right side of tiller

REF NO.

PART NO. DESCRIPTION

710-3005

Hex Hd. Screw, 3/8-16 x 1 -1/4, Grade 5 10

2 GW-50049-01 Single Boto Tine - Right Handf (A) (B) (C) 11 3 712-3000 Hex Lock Nut, 3/8-16

4 710-0347 HexHd. Screw, 3/8-16x1-3/4 5 GW-50049-02

1916747

1915075

7 1917486

1917487 GW-55095-01

GW-55095-02

Single Bolo Tine - Left Handt (A) (B) (C) Tine Holder (BMC) Tine Holder (A) Wheel & Tire Ass’y — Left/Right Side(B) Wheel & Tire Ass’y— Left/Right Side (C) Wheel & Tire Ass’y — Left Side Only (A) Wheel S Tire Ass’y — Right Side Only (A)

9 GW-9380 Clevis Pin, .312" X1-3/4"

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

(G) For Model 634B

REF NO.

PART NO.

GW-9338

Hair Pin Cotter

736-0169 Lock Washer, 3/8 (ВИО

—

GW-1901 Bolo Tine Replacement Set (Incl. eight

right-hand tines, eight left-hand tines and required hardware. (A) (B) (C)

—

642-0029 Left Hand Tine Assembly^: (Incl. one tine

holder and eight tines, assembled) (B) {C}

642-0030 Right Hand Tine Assemblyf {Inch one tine

holder and eight tines, assembled) (B) (C)

____

642-0031

Left Hand Tine Assembly^ (Incl. one tine holder and eight tines, assembled) (A)

—

642-0032 Right Hand Tine Assemblyf (Incl. one tine

holder and eight tines, assembled) (A)

DESCRIPTION

MODELS 630C, 634F & 634В

REF NO.

1 1107382 Flat Washer, 5/16 2 1108841 3 1916531 Pulley, Engine Drive (B) (C)

4 1916532 Transmission Puiley (B) (C)

5 1916535 Pulley, Reverse Idler (B) (C) 6 1916652 7 1916657

8 1916658 Reverse Drive Belt (B) (C) 9 1916660

10 1916724 Reverse Return Spring (B) (C)

15 1917326 Bracket, Belt Cover

19 710-0117 20 710-0237 21 22 23 710-0520 24 25 26 712-3000 27 28 736-0119 29 30 736-3090 31 GW-55036 32 GW-1138-2 Shim 33

34 GW-55034 35 36 37 38 GW-9929 39 GW-9944 40 41 710-0805 Hex Hd. Screw, 5/16-18x1-1/2 (A) 42 43

PART NO. DESCRIPTION

Key,3/16“x1-1/2=(B (C)

GW-55035

GW-55031

GW-55037

1917746 Shoulder Washer 1918731 1918744

710-0376 710-04049

710-0599 710-3103 Hex Hd. Screw, 5/16-18 x 2 (B)(C)

712-3009 Lock Nut, 5/16-18 {B)(0

736-3050

GW-50027 Support Washer

GW-55049 GW-9090 Forward Idler Pulley GW-9301

GW-55039 Forward Belt Guide (A)

712-3010 710-0157 Hex Hd. Screw, 5/16-24 x 3/4 (A)

Puiley, Engine Drive (A)

Transmission Pulley

Guard, Belts/Puileys

Forward Drive Belt (B) {C} Forward Drive Belt (A)

Belt Cover

Engine Bracket, Left Engine Bracket, Right

Reverse Idler Arm (B)(C) Forward Idler Lever Hex Hd. Screw, 5/16-24x1 (BMC) Hex Hd. Screw, 5/16-24x56 Hex Hd. Screw, 5/16-18x1 Hex Hd. Screw, 5/16-18x5/8 Hex Hd. Screw, 3/8-16x1-1/2

Screw, Self-Tapping, 1/4-20 x 1/2

Lock Nut, 3/8-16

Lock Washer, 5/16 Flat Washer, 3/8 Flat Washer

Spacer(A)

Forward Return Spring Bracket, Gable Mounting

Key, 3/16“ x1" Flat Washer Belleville Washer

Hex Nut, 5/16-18 (A)

TROY-BILT TILLER LIFETIME LIMITED WARRANTY

WHAT PRODUCT IS COVERED

WHAT IS COVERED BY THIS WARRANTY

WHAT IS NOT COVERED BY THIS WARRANTY

All Troy-Bilt branded rear tine walk-behind tillers with gear drive transmissions. This warranty begins on the date of purchase and is warranted by Troy-Bilt LLC for the life of the tiller, to the original purchaser only.

Troy-Bilt LLC will, at Its option, repair or replace any part found to be defective in material or workmanship without charge for parts and labor

This limited lifetime warranty also applies to non-powered attachments and accessories. Powered attachments and accessories are warranted separately by their manufacturers. Refer to the applicable manufacturer’s warranty on these items for terms and conditions.

This warranty does not apply to parts that have been damaged by accident, alteration, misuse, abuse, neglect, improper maintenance, vandalism, theft, fire, water, or damage because of peril or other natural disaster.

The following items are not covered after the first year of this residential use limited warranty: belts, batteries, bushings, seals, tines, tires, wheels, paint, appearance items, and similar items that are normally replaced through periodic maintenance.

Charges for pick-up, delivery, and service calls are not covered by this warranty.

Service completed by someone other than an authorized service dealer is not covered by this warranty.

Parts that are not genuine Troy-Bilt LLC service parts are not covered by this warranty.

The engine is warranted separately by the engine manufacturer. Refer to the engine manufacturer’s warranty for terms and conditions.

LIMITED COMMERCIAL USE WARRANTY

HOWTO OBTAIN SERVICE

The provisions set forth in this warranty provide the sole and exclusive remedy arising from the sale. Troy-Bilt LLC shall

not be liable for any incidental or consequential damage or expense of any kind, including but not limited to cost of equipment rental, loss of profits, or costs of hiring services to perform tasks normally performed by the equipment.

Any implied warranties, including any implied warranty of merchantability or fitness for a particular purpose, shall be limited

in duration to the period of ownership by the original purchaser (and a maximum of 90 days from the date of sale if the tiller is

Some states do not allow the exclusion or limitation of incidental or consequential damages, or limitations on how long an

This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

if used for commercial, institutional, industrial, rental, or demonstrator purposes, the warranty on the tiller is limited in duration to 90 days from the date of purchase.

Warranty service is available, with proof of purchase, through your local authorized service dealer. To locate a dealer in your area, consult your Yellow Pages, or contact Troy-Bllt LLC at P.O. Box 361131, Cleveland, Ohio 44136-0019,1-866-840-6483, or log on to our Web site at wiww.troybilt.com.

purchased for commercial or other non-residential use).

implied warranty lasts, so the above exclusions or limitations may not apply to you.

For customer assistance, contact your nearest authorized dealer, or contact us at:

TROY-BILT LLC, P.O. Box 361131, Cleveland, Ohio 44136-0019,1-866-840-6483

Troy-Bilt 634BM User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

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

TABLE OF CONTENTS

Content Page

FINDING MODEL NUMBER

Copy the model number here:

Copy the serial number here;

ENGINE INFORMATION

CALLING CUSTOMER SUPPORT

SECTION 1: SAFETY

Operating Symbols

SECTION 2: ASSEMBLY

STEP 4: INSTALL FORWARD CLUTCH CABLE

sibK /: Auu Mu I UK uiL

STEPS: CHECK HARDWARE

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

SECTION 3: FEATURES AND CONTROLS

INTRODUCTION

ENGINE CONTROLS

WHEEL DRIVE PINS

FORWARD CLUTCH BAIL

REVERSE CLUTCH CONTROL (Models 634F/634B only)

DEPTH REGULATOR LEVER

HANDLEBAR HEIGHT ADJUSTMENT

SECTION 4: OPERATION

INTRODUCTION

BREAK-IN OPERATION

STARTING AND STOPPING

A WARNING

OPERATING THE TILLER

Terrace Gardening (continued)

SECTION 5: MAINTENANCE

FORWARD CLUTCH BAIL ADJUSTMENT

To Check Reverse Belt Tension:

Replacement Beit Information

ENGINE CLEANING

AIR CLEANER SERVICE

ENGINE OIL SERVICE

SPARK PLUG SERVICE

SPARK ARRESTER SCREEN SERVICE

THROTTLE LEVER ADJUSTMENT

CARBURETOR/GOVERNOR CONTROL ADJUSTMENTS

OFF-SEASON STORAGE

TROUBLESHOOTING

SECTION 6: MODELS 630C, 634F & 634B PARTS LIST