Poulan 163659 User Manual

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OWNER'S MANUAL

MODEL NO. HDF550F

5 HP 24 Inch
Tiller

Assembly

• Operation
^ Customer Responsibilities

• Serwice and Adjustments

• Storage

• Troubleshooting

For Parts and Service, contact our authorized distributor; call 1-800-849-1297

For Technical Assistance: call 1 -800-829-5886

0

• Repair Parts

Pouton

163659 11.13.97 TR

PRINTED IN U.S.A.

SAFETY RULES

A

Safe Operation Practices for Walk-Behind Powered Rotary Tillers

A

yWING

• Read the Owner’s Manual carefully. Be thoroughly
familiar with the controls and the proper use of the
equipment. Know how to stop the unit and disengage
the controls quickly.

• Never allow children to operate the equipment. Never
allow adults to operate the equipment without proper
instruction.

• Keep the area of operation clear of all persons, particu
larly small children, and pets.

PREPARATION

• Thoroughly inspect the area where the equipment is to
be used and remove all foreign objects.

• Disengage all clutches and shift into neutral before
starting the engine (motor).

• Do not operate the equipment without wearing ad
equate outer garments. Wear footwear that will im
prove footing on slippery surfaces.

• Handle fuel with care; it is highly flammable.

• Use an approved fuel container.

• Never add fuel to a running engine or hot engine.

• Fill fuel tank outdoors with extreme care. Never fill fuel

tank indoors.

• Replace gasoline cap securely and clean up spilled

fuel before restarting.

• Use extension cords and receptacles as specified by

the manufacturer for all units with electric drive motors
or electric starting motors.

• Never attempt to make any adjustments while the
engine (motor) is running (except where specifically
recommended by manufacturer).

OPERATION

Do not put hands or feet near or under rotating parts.
Exercise extreme caution when operating on or cross

ing gravel drives, walks, or roads. Stay alert for hidden
hazards or traffic. Do not carry passengers.

After striking a foreign object, stop the engine (motor),
remove the wire from the spark plug, thoroughly in
spect the tiller for any damage, and repair the damage
before restarting and operating the tiller.

Exercise caution to avoid slipping or falling,
if the unit should start to vibrate abnormally, stop the

engine (motor) and check immediately for the cause.
Vibration is generally a warning of trouble.

Stop the engine (motor) when leaving the operating
position.

Take all possible precautions when leaving the ma
chine unattended. Disengage the tines, shift into
neutral, and stop the engine.

Before cleaning, repairing, or inspecting, shut off the
engine and make certain ail moving parts have stopped.
Disconnect the spark plug wire, and keep the wire
away from the plug to prevent accidental starting.
Disconnect the cord on electric motors.

Do not run the engine indoors; exhaust fumes are
dangerous.

Never operate the tiller without proper guards, plates,
or other safety protective devices in place.

Keep children and pets away.
Do not overload the machine capacity by attempting to

till too deep at too fast a rate.
Never operate the machine at high speeds on slippery

surfaces. Look behind and use care when backing.
Never allow bystanders near the unit.
Use only attachments and accessories approved by

the manufacturer of the tiller (such as wheel weights,
counterweights, cabs, and the like).

Never operate the tiller without good visibility or light.
Be careful when tilling in hard ground. The tines may

catch in the ground and propel the tiller forward. If this
occurs, let go of the handlebars and do not restrain the
machine.

MAINTENANCE AND STORAGE

• Keep machine, attachments, and accessories in safe
working condition.

• Check shear pins, engine mounting bolts, and other
bolts at frequent intervals for proper tightness to be
sure the equipment is in safe working condition.

• Never store the machine with fuel in the fuel tank inside
a building where ignition sources are present, such as
hot water and space heaters, clothes dryers, and the
like. Allow the engine to cool before storing in any
enclosure.

• Always refer to the operator’s guide instructions for
important details if the tiller is to be stored for an
extended period.

- IMPORTANT -

CAUTIONS, IMPORTANTS, AND NOTES ARE A MEANS
OF ATTRACTING ATTENTION TO IMPORTANT OR
CRITICAL INFORMATION IN THIS MANUAL.

IMPORTANT: USED TO ALERT YOU THAT THERE IS A

POSSIBILITY OF DAMAGING THIS EQUIPMENT.

NOTE: Gives essential information that will aid you to
better understand, incorporate, or execute a particular set
of instructions.

Look for this symbol to point out im
portant safety precautions. It means

A

A

CAUTION!!! BECOME ALERT!!! YOUR
SAFETY IS INVOLVED.

CAUTION: Always disconnect spark
plug wire and place wire where it can
not contact spark plug in order to pre
vent accidental starting when setting
up, transporting, adjusting or making
repairs.

A WARNING A

The engine exhaust from this product con
tains chemicals known to the State of Califor
nia to cause cancer, birth defects, or other
reproductive harm.

CONGRATULATIONS on your purchase of a new tiller. It
has been designed, engineered and manufactured to give
you the best possible dependability and performance.

Should you experience any problems you cannot easily
remedy, please contact your nearest authorized service

center. We have competent, well-trained technicians and

PRODUCT SPECIFICATIONS

HORSEPOWER:

DISPLACEMENT:

5.0 HP

12.57 cu. in. (206cc)

the proper tools to service or repair this unit.
Please read and retain this manual. The instructions will

enable you to assemble and maintain your tiller properly.

GASOLINE CAPACITY: 3 Quarts (2.8L)

Unleaded Regular

Always observe the “SAFETY RULES”.

MODEL

OIL (API-SF/SG/SH): SAE 30 (Above 32°F/0°C)
(CAPACITY: 20 oz./0.6L) SAE 5W-30 (Below 32°F/0°C)

NUMBER HDF550F
SERIAL

NUMBER

__________

SPARK PLUG: Champion
(GAP: .030''/0.76mm) RJ19LM

DATE OF PURCHASE

THE MODEL AND SERIAL NUMBERS WILL BE
FOUND ON THE MODEL PLATE ATTACHED TO
THE RIGHT HAND ENGINE BRACKET.

YOU SHOULD RECORD BOTH SERIAL NUMBER
AND DATE OF PURCHASE AND KEEP IN A SAFE
PLACE FOR FUTURE REFERENCE.

IMPORTANT: THIS UNIT IS EQUIPPED WITH AN INTERNAL COMBUSTION ENGINE AND SHOULD NOT BE USED ON OR

NEAR ANY UNIMPROVED FOREST-COVERED, BRUSH-COVERED OR GRASS COVERED LAND UNLESS THE ENGINE'S
EXHAUST SYSTEM IS EQUIPPED WITH A SPARK ARRESTER MEETING APPLICABLE LOCAL 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, A SPARK ARRESTER IS REQUIRED BY LAW (SECTION 4442 OF THE CALIFORNIA
PUBLIC RESOURCES CODE). OTHER STATES MAY HAVE SIMILAR LAWS. FEDERAL LAWS APPLY ON FEDERAL
LANDS. SEE YOUR AUTHORIZED SERVICE CENTER/DEPARTMENT FOR SPARK ARRESTER.

CUSTOMER RESPONSIBILITIES

• Read and observe the safety rules.

• Follow a regular schedule in maintaining, caring for and
using your tiller.

• Follow instructions under “Customer Responsibilities”
and “Storage” sections of this Owner’s Manual.

LIMITED WARRANTY

The Manufacturer warrants to the original consumer purchaser that this product as manufactured is tree from detects in
materials and workmanship. For a period of two (2) years from date of purchase by the original consumer purchaser, we will

repair or replace, at our option, without charge for parts or labor incurred in replacing parts, any part which we find to be

defective due to materials or workmanship. This Warranty is subject to the following limitations and exclusions,

1. This warranty does not apply to the engine or components parts thereof. Please refer to the applicable manufacturer's
warranty on these items.

2. Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the
purchaser. Transportation charges for any parts submitted for replacement under this warranty must be paid by the
purchaser unless such return is requested by American Yard Products.

3. The Warranty period tor any products used for rental or commercial purposes is limited to 90 days from the date of
original purchase.

4. This Warranty applies only to products which have been properly assembled, adjusted, operated, and maintained in
accordance with the instructions furnished. This Warranty does not apply to any product which has been subjected to
alteration, misuse, abuse, improper assembly or installation, delivery damage, or to normal wear of the product.

5. Exclusions: Excluded from this Warranty are belts, tines, tine adapters, normal wear, normal adjustments, standard
hardware and normal maintenance.

6. In the event you have a claim under this Warranty, you must return the product to an authorized service dealer.

Should you have any unanswered questions concerning this Warranty, please contact:

American Yard Products
Service Department
P.O. Box 1687
Orangeburg, SC 29116 USA

giving the model number, serial number and date of purchase of your product and the name and address of the authorized

dealer from whom it was purchased.
THIS WARRANTY DOES NOT APPLY TO INCIDENTAL OR CONSEQUENTIAL DAMAGES AND ANY IMPLIED WARRAN

TIES ARE LIMITED TO THE SAME TIME PERIODS STATED HEREIN FOR OUR EXPRESSED WARRANTIES. Some areas
do not allow the limitation of consequential damages or limitations of how long an implied Warranty may last, so the above
limitations or exclusions may not apply to you. This Warranty gives you specific legal rights, and you may have other rights
which vary from locale to locale.

This is a limited Warranty within the meaning of that term as defined in the Magnuson-Moss Act of 1975.

In Canada contact:
American Yard Products
1580 Trinity Drive, Units 5-8
Mississauga, Ontario
L5T 1L6

TABLE OF CONTENTS

CUSTOMER RESPONSIBfLITiES .....................3, 11-13

PRODUCT SPECiFiCATIONS ..................................... 3

WARRANTY.................................................................. 3

ASSEMBLY ................................................................5-6

OPERATION .............................................................7-10

INDEX

A

Adjustments:

Carburetor
Depth Stake

Handle Height......................

Tines
V-Belt

Wheels..................................... 8

Air Cleaner....................................

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

.......

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

................................. 13-14

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

B

Belt, V-:

Belt Guard .............................. 16

Repair Parts

V-Belt Replacement

........

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

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

c

Cooling System
Controls:

Choke...........................................7

Throttle.........................................7

Tines

Cultivating ....................................

Customer Responsibilities:

Air Cleaner................................ 12

Cooling System ......................

Finish

Maintenance Schedule

Muffler..................................... 13

Oil Change

Spark Plug

Transmission............................ 13

Depth Stake:

Adjustment...................................8

Repair Parts

Engine:

Air Cleaner
Cooling System

Fuel Type.................................... 9

Lubrication

Oil Level...................................... 9

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

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

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

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

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

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

D

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

E

.........

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

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

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

16

8

13

15

12

20

15

12

10

12

13

11

12
13

21

12

12

12

Engine (cont'd)

Fuel:

Finish:

Handle:

7

Lubrication:

Muffler:

Oil:

Operation:

Oil Type

Spark Plug.............................. 13

Starting

Stopping ....................................

Storage

Winter Operation ..................... 12

Filling Tank

Storage..................................... 17

Type......................................... 9

Maintenance ...........................

Height Adjustment
Repair Parts

Lubrication Chart

Engine

Maintenance............................. 13

Spark Arrester

Level......................................... 9

Type................................. 9,12

Cultivating ...............................

Fill Fuel Tank
Starting Engiiie
Stopping Tines & Engine
Tilling

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

Tilling Hints ...........................

Tine Operation
Transporting Tiller
Winter Operation

MAINTENANCE SCHEDULE

SERVICE & ADJUSTMENTS

STC^RAGE ..... .. ..... ,..,..„„.=......................„.............17

TROOBLESHOOTiNG.............................................. 18

REPAIR PARTS-TILLER........................................ 19-24

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

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

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

9,12

F

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

H

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

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

L

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

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

M

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

O

............................ 9

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

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

........ 8

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

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

9

17

9

13

13
19

11

12

3

10

8

10

12

....

.................................... 11

....

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

R

Repair Parts

Tiller

..................................... 19-24

Rules for Safe Operation

8

s

Service & Adjustments:

Carburetor.............

Handle Height
Tines

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

V-Belt....

Wheels....................................

Service:

Repair Parts......................... 19-24

Service Record

Spark Plug:

Gap

Maintenance

Storage:

Fuel System

Tiller........................................ 17

Tilling
Tines:

Arrangement
Operation
Repair Parts

Transmission:

Maintenance ...........................

Repair Parts

Troubleshooting
Transporting

Warranty.......................................... 3

Wheels:

9

8

9

Adjustments...............................

Repair Parts...'......................... 21

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

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

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

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

.................................. 9

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

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

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

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

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

T

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

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

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

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

W

...13-16

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

16

13-14

15
8

........... 11

3

13

8, 10

13-14

22
13

18

2

13

17

8

23

8

ASSEMBLY

Your new tiller has been assembled at the factory with exception of those parts left unassembled for shipping purposes. To
ensure safe and proper operation of your tiller all parts and hardware you assemble must be tightened securely. Use the
correct tools as necessary to insure proper tightness.

TOOLS REQUIRED FOR ASSEMBLY

A socket wrench set will make assembly easier. Standard
wrench sizes are listed.

(1) Utility knife
(1) Pair of pliers
(1) Screwdriver
(2) 1/2" wrenches

OPERATOR’S POSITION {See Fig. 1)

When right or left hand is mentioned in this manual, it
means when you are in the operating position (standing
behind tiller handles).

CONTENTS OF HARDWARE PACK

LEFT

FRONT

r

M”

RIGHT

OPERATOR'S
POSITION

FIG. 1

!■

(2) Hex Bolts 5/16-18 X 3/4

(1) Cotter Pin

§■■■■■

(2) Hex Bolts 5/16-18 X 1-1/4

(2) Hex Bolts 5/16-18 x 1

o

(1) Clevis Pin

(6) Lock Washers 5/16

(6) Hex Nuts 5/16-18

ASSEMBLY

UNPACK CARTON & INSTALL HANDLE (See

Fig. 2)

CAUTION: Oft careful of exposed
staples when handling or disposing of

A

iMPORTANT: WHEN UnPACKlNG AND ASSEMBLING
TILLER, BE CAREFUL NOT TO STRETCH OR KINK
CABLE(S).

» Cut cable ties securing handles.

• Slowly lift handle assembly up and align handle holes

with handle panel hole and slot.

• Loosely assemble hardware as shown. Be sure the

shorter (3/4" long) hex bolt is assembled in lower hole
of handle. Repeat for opposite side. Tighten all
hardware securely.

• Cut cable ties securing tiller to skid and remove tiller

from skid.

cartoning material

I ALL DEPIH LIAKE ASSEMBLY

(See Fig. 3)

• Loosen nut “A”.

• Insert stake support between engine bracket halves
with stake spring down.

• Bolt stake support to engine brackets with bolts, lock
washers and nuts. Tighten securely. Tighten nut “A”.

• Depth stake must move freely. If it does not, loosen
support bolt.

INSTALL REVERSE ROD (See Fig. 2)

• Secure upper reverse rod to lower reverse rod using

clevis pin. Secure with cotter pin.

• Handle height may be adjusted to better suit operator.
(See “HANDLE HEIGHT” in the Service and AdjusT
ments section of this manual).

TILLING WIDTH

• Tilling width may be adjusted to better handle your

tilling conditions (See “TINE ARRANGEMENT” in the

Service and Adjustments section of this manual).

TINE OPERATION

• Check tine operation before first use. (See “TINE

OPERATION CHECK” in the Service and Adjustments
section of this manual).

OPERATION

rntm HI» La

n If '' VM f M. SAFETY RULES BEFORE OPERATING YOUR TILLER.

T to familiarize yourself with the location of various controls and adjustments. Save

this manual for future reference.

These symbols may appear on your Tiiler or in literature supplied with the product. Learn and understand their
meaning.

I

I F N R A (S © l\l B

TiLLiNG FORWARD NEUTRAL REVERSE CAUTION ENGINE ENGirJE

OR WARNING ON OFF

FAST

SLOW CHOKE

O

MEETS ANSI SAFETY REQUIREMENTS

Our tillers conform to the safety standards of the American National Standards Institute.

FORWARD TINE CONTROL - Engages tines in forward

direction.
REVERSE TINE CONTROL - Engages tines in reverse

direction.

THROTTLE CONTROL - Controls engine speed.

CHOKE CONTROL - Used when starting a cold engine.
DEPTH STAKE - Controls forward speed and the depth at

which the tiller will dig.
RECOIL STARTER HANDLE - Used to start the engine.

OPERATION

The operation of any iilier can resuit in foreign objects thrown into the eyes, whicli can
resui! in severe eye damage. Ahvays wear safety glasses cr eve shields before starting
your tiller arid while tilling. We recomiTiend a vricle vision safely mask for over the­spectacles or standard safety glasses.

HOW TO USE YOUR TILLER

Know how to operate all controls before adding fuel and oil

or attempting to start engine.

STOPPING (See Fig. 5)

TINES

• Release forward tine control to stop forward move
ment.

• Release reverse tine control to stop reverse move

ment.

ENGINE

• Move throttle control to “STOP” position.

• Never use choke to stop engine.

TILLING

The speed and depth of tilling is regulated by the position
of the depth stake and wheel height.

The depth stake should always be below the wheels for
digging. It serves as a brake to slow the tiller’s forward
motion to enable the tines to penetrate the ground. Also,
the more the depth stake is lowered into the ground the
deeper the tines will dig.

DEPTH STÄKE (See Fig. 6)
Adjust depth stake by removing the hairpin clip and clevis

pin. Change depth stake to desired position. Replace the
clevis pin and hairpin clip.

* For normal tilling, set depth stake at the second or third

hole from the top.

WHEELS (See Fig. 6)
Adjust wheels by removing the hairpin clip and clevis pin.

Change wheel position. Replace the hairpin clip and clevis
pin.

• For normal tilling, set wheels at the second or third hole
from the top.

TiNE OPERATION (See Fig. 5)

FORWARD

• Squeeze forward tine control to handle.

REVERSE

• With forward tine control “OFF” (up) position, pull back
and hold reverse tine control.

8

OPERATION

TO TRANSPinr

CAUTIOH: Before isfttrsg or transport
ing, allow fillet engine and muffler to

A

AROUND THE YARD

• Tip depth stake forward until it is held by the stake
spring.

• Push tiller handles down, raising tines off the ground.

• Push or pull tiller to desired location.
AROUND TOWN

• Disconnect spark plug wire.

• Drain fuel tank.

• Transport in upright position to prevent oil leakage.

cool. Disconnect spark plug wire. Drain
gasoline from fuel tank.

BEFORE STARTING ENGINE

IMPORTANT: BE VERY CAREFUL NOT TO ALLOW DIRT

TO ENTER THE ENGINE WHEN CHECKING OR ADDING

OIL OR FUEL. USE CLEAN OIL AND FUEL AND STORE

IN APPROVED, CLEAN, COVERED CONTAINERS. USE
CLEAN FILL FUNNELS.

FILL ENGINE WITH OIL (See Fig. 7)

• With engine level, remove engine oil filler plug.

• Fill engine with oil to point of overflowing. For approxi

mate capacity see “PRODUCT SPECIFICATIONS” on

page 3 of this manual.

• Tilt tiller back on its wheels and then re-level.

• With engine level, refill to point of overflowing if neces

sary. Replace oil filler plug.

• For cold weather operation you should change oil for

easier starting (See “OIL VISCOSITY CHART” in the
Customer Responsibilities section of this manual).

• To change engine oil, see the Customer Responsibili

ties section of this manual.

ADO GASOLINE

fuel tank.

ill ii- 'L'n

d lead uxidf

mpmnti , L (

LEG) A/ j ( (fec) U f M.r^

(.r- ,ui ifi. ro hto r III ,Ur

‘ I mH riNf

WARNING: Experience indicates that alcohol blended
fuels (called gasohol or using ethanol or methanol) can
attract moisture which leads to separation and formation of
acids during storage. Acidic gas can damage the fuel
system of an engine while in storage. To avoid engine
problems, the fuel system should be emptied before

storage of 30 days or longer.

engine and let it run until the fuel lines and carburetor are
empty. Use fresh fuel next season. See Storage section
of this manual for additional information. Never use engine
or carburetor cleaner products inthe fuel tank or permanent
damage may occur.

CAUTION: Fill to within 1/2 inch of top
of fuel tank to prevent spills and to
allow for fuel expansion. If gasoline is
accidentally spilled, move machine
away from area of spill. Avoid creating
any source of ignition until gasoline
vapors have disappeared.

Do not overfill. Wipe off any spilled oil
or fuel. Do not store, spill or use gaso
line near an open flame.

llsi

of ie

dep<

;h, dean, regular unleaded

I 1.1 Wll iW IP.»' ^ ( ortlUt

a id "I nu' r V' e M' )

ATING IN TEMPERATURES

!| « 1 t AN WlflTF P GRADt

.t 1.0.•[» » fi| D Wt Al HER

Drain the gas tank, start the

TO START ENGINE (See Fig. 8)

CAUTION: Keep tine control in
position when starting engine.

When starting engine for the first time or if engine has run
out of fuel, if wii! take extra pulls of the recoil starter to move
fuel from the tank to the engine.

• Make sure spark plug wire is properly connected.

• Place throttle control in “FAST” position.

• Move choke control to full “CHOKE” position. Grasp
recoil -Starter handle with one hand and grasp tiller
handle with other hand. Pull rope out slowly until
engine reaches start of compression cycle (rope will
pull slightly harder at this point).

• Pull recoil starter handle quickly. Do not let starter
handle snap back against starter. Repeat if necessary.

• If engine fires but does not start, move choke control to
half choke position. Puli recoil starter handle until
engine starts.

• When engine starts, slowly move choke control to
“RUN” position as engine warms up.

NOTE: A warm engine requires less choking to start.

• Move throttle control to desired running position.

• Allow engine to warm up for a few minutes before
engaging tines.

NOTE: If at a high altitude (3000 feet) or in cold tempera

tures (below 32°F), the carburetor fuel mixture may need to

be adjusted for best engine performance. See “TO AD
JUST CARBURETOR” in the Service and Adjustments
section of this manual.

NOTE: If engine does not start, see troubleshooting points.

‘OFF”

OPERATION

BREAKING IN YOUR TILLER

Break-in your belt(s), pulleys and tine control before you
actually begin tilling.

• Start engine, tip tines off ground by pressing handles
down and engage tine control to start tine rotation.
Allow tines to rotate for five minutes.

• Check tine operation and adjust if necessary. See
“TINE OPERATION CHECK” in the Service and Ad
justments section of this manual.

TILLING HINTS

CAUTION: Until you are accustomed to
handling your tiller, start actual field

A

To help tiller move forward, lift up the handles slightly (thus

lifting depth stake out of ground). To slow down the tiller,

press down on handles.

If you are straining or tiller is shaking, the wheels and depth
stake are not set properly in the soil being tilled. The proper
setting of the wheels and depth stake is through trial and
error and depends upon the soil condition. (The harder or
wetter the ground, the slower the engine and tine speed
needed. Underthesepoorconditions,atfast speed the tiller
will run and jump over the ground).

A properly adjusted tiller will dig with little effort from the

operator,

• Tilling is digging into, turning over, and breaking up

packed soil before planting. Loose, unpacked soil

helps root growth. Best tilling depth is4"-6". A tiller will
also clear the soil of unwanted vegetation. The decom
position of this vegetable matter enriches the soil.

Depending on the climate (rainfall and wind), it may be
advisable to till the soil at the end of the growing season
to further condition the soil.

» Soil conditions are important for propertilling. Tines will

not readily penetrate dry, hard soil which may contrib

ute to excessive bounce and difficult handling of your
tiller. Hard soil should be moistened before tilling;

however, extremely wet soil will “ball-up" or clump
during tilling. Wait until the soil is less wet in order to
achieve the best results. When tilling in the fall, remove
vines and long grass to prevent them from wrapping

around the tine shaft and slowing yourtilling operation.

use with throttle in slow position.

» Yea 'Will find li'lir'. mufli f i.-r if <>> i i. , icw

utriil fill i’ll ' n p, L ' t ,/r, ih' .lure

area at right angles (See Ftg. 9). There are two reasons

fC' k.|i ,'j |>1" ‘ I , If '.J ti U( It Cc I t lO

n> 'j' 'la*- itk' I ; i - Ml j ■! . ti,i 1 V 111 be

p Jlllti* ! ;if , ' I ' ' II ( A [. ■ It < ^ V Hill

• Set depth tri-r- iiid v/hw I Ik igfii L ^ diailovi/ tilling
wrm> woirviiMj e it ci i) h ' I „.liu- soJ Thtiivj'ork
across fh, :i. i < >'i i ri rmi'i >.t, ri,

__

i Tl I _i ^ ‘

il 1^1 ill ill ¡1'

-±J J_£J_ if L JJJlJJll-.

tue

VC

It fl 1T1 Iti ITI Iti

_ _

TiTT

-p- —p ——p

-

4 I

I !

m 1 A 1 1 1 r 1 ìt i”tt

f I -

— -41:— —

—P’' —p- —

il Iti Ili Iti 111

♦1 li! 1*1 1'1 1*i

■*-- -m—

\ r

Wìi-

Tf

Tr
tl

rrr

( 1

FIG. 9

CULTIVATING

Cultivating is destroying the weeds between rows to pre
vent them from robbing nourishment and moisture from
the plants. At the same time, breaking up the upper layer
of soil crust will help retain moisture in the soil. Best
digging depth is T-3".

• You will probably not need to use the depth stake.

Begin by tipping the depth stake forward until it is held

by the stake spring.

• Cultivate up and down the rows at a speed which will

allow tines to uproot weeds and leave the ground in

rough condition, promoting no further growth of weeds

and grass (See Fig. 10).

10

CUSTOMFR RESPONSIBIUTIES

1 - Change more often when operating under a heavy load or in high ambient temperatures.
2 - Service more often when operating in dirty or dusty conditions.

GENERAL RECOMMENDATIONS

The warranty on this tiller does not cover items that have

been subjected to operator abuse or negligence. To
receive full value from the warranty, operator must main

tain tiller as instructed in this manual.

Some adjustments will need to be made periodically to
properly maintain your tiller.

All adjustments in the Service and Adjustments section of
this manual should be checked at least once each

season.

• Once a year you should replace the spark plug, clean
or replace air filter, and check tines and belts for wear
A new spark plug and clean air filter assure proper air­fuel mixture and help your engine run better and last
longer.

BEFORE EACH USE

• Check engine oil level.

• Check tine operation.

• Check for loose fasteners.

LUBRICATION

Keep unit well lubricated (See “LUBRICATION CHART”).

LUBRICATION CHART

ARM

SAE 30 OR 10W-30 MOTOR OIL ‘ ■

’* REFER TO CUSTOMER RESPONSIBIUTIES “ENGINE” SECTION

11

A.

CUSTOMER RESPONSIBILITIES

Disconnect spark plug wire before performing any maintenance (except carburetor adjustment) to prevent

accidental starting of engine.

Prevent fires! Keep the engine free of grass, leave.s, spilled oü or fuel. Remove fuel from lank before tipping

yni< for maintenance. Cíean myffier area of all grass, dirt, end dabres.
Do not toych hot muffler or cylinder fins as toniaci may cause bum;:.

ENGINE

LUBRICATION

Use only high quality detergent oil rated with AP! service
classification SF, SG or SH. Select the oil’s SAE viscosity
grade according to your expected temperature.

FIG. 11

NOTE: Although multi-viscosity oils (5W-30,10W-30, etc.)
improve starting in cold weather, these multi-viscosity oils
will result in increased oil consumption when used above
32°F (0°C). Check your engine oil level more frequently to
avoid possible engine damage from running low on oil.

Change the oil after every 25 hours of operation or at least
once a year if the tractor is not used for 25 hours in one year.

Check the crankcase oil level before starting the engine
and after each five (5) hours of continuous use. Add SAE
30 motor oil or equivalent. Tighten oil filler plug securely
each time you check the oil level.

AIR Cleaner (See Fig. 13)

Service aircleanercartridge every twenty-five hours, more
often if engine is used in very dusty conditions.

• Loosen air cleaner screws, one on each side of cover.

• Remove air cleaner cover.

• Carefully remove air cleaner cartridge. Be careful. Do
not allow dirt or debris to fall into carburetor.

• Clean by tapping gently on a flat surface.

• If very dirty or damaged, replace cartridge.

• Clean and replace cover. Tighten screws securely.

CAUTION: Petroleum solvents, such
as kerosene, are not to be used to clean

A

cartridge. They may cause deteriora

tion of the cartridge. Do not oil car
tridge. Do not use pressurized air to
clean or dry cartridge.

TO CHANGE ENGINE OIL (See Figs. 11 and 12)

Determine temperature range expected before oil change.
All oil must meet API service classification SF, SG or SH.

• Be sure tiller is on level surface.

• Oil will drain more freely when warm.

• Catch oil in a suitable container.

• Remove drain plug,

• Tip tiller forward to drain oil.

• After oil has drained completely, replace oil drain plug
and tighten securely.

• Remove oil filler plug. Be careful not to allow dirt to
enter the engine.

• Refill engine with oil. See “CHECK ENGINE OIL

LEVEL” in the Operation section of this manual.

COOLING SYSTEM (See Fig. 14)

Your engine is air cooled. For proper engine performance
and long life keep your engine clean.

• Clean air screen frequently using a stiff-bristled brush.

• Remove blower housing and clean as necessary.

• Keep cylinder fins free of dirt and chaff.

12

CUSTOMER RESPONSIBILITIES

MUFFLER

Do not operate tiller without muffler. Do not tamper with
exhaust system. Damaged mufflers or spark arresters

could create a fire hazard. Inspect periodically and replace

if necessary. If your engine is equipped with a spark
arrester screen assembly, remove every 50 hours for
cleaning and inspection. Replace if damaged.

SPARK PLUG

Replace spark plugs at the beginning of each tilling season
or after every 50 hours of use, whichevercomes first. Spark
plug type and gap setting are shown in “PRODUCT SPECI
FICATIONS” on page 3 of this manual.

SERVICE AND ADJUSTMENTS

CAUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come into

A

TILLER

TO ADJUST HANDLE HEIGHT (See Fig. 15)

Factory assembly has provided lowest handle height. Se
lect handle height best suited for your tilling conditions.
Handle height will be different when tiller digs into soil.

• If a higherhandle height is desired, loosen the four nuts
securing handle panel to engine brackets.

• Slide handle panel to desired location.

• Tighten the four nuts securely.

contact with plug.

TRANSMISSION

Your transmission is sealed and will not require lubrication

unless serviced.

CLEANING

• Clean engine, wheels, finish, etc. of all foreign matter.

• Keep finished surfaces and wheels free of all gasoline,
oil, etc.

• Protect painted surfaces with automotive type wax.

We do not recommend using a garden hose to clean your

unit unless the muffler, air filter and carburetor are covered
to keep water out. Water in engine can result in a shortened
engine life.

TINE ARRANGEMENT

Youroutertines can be assembled in several different ways
to suit your tilling or cultivating needs.

CAUTION: Tines are sharp. Wear

gloves or other protection when han

A

NORMAL TILLING - 24" PATH (See Fig. 16)

• Assemble holes “A” in tine hubs to holes “B” in tine
shaft.

dling tines.

13

SERVICE AND ADJUSTMENTS

TO REMOVb BELT GUARD (See Fig. 22)

• Remove two (2) cap nuts and washers from side of belt
guard.

• Loosen (do not remove) tine shield nut on underside of

tine shield.

• Pull belt guard out and away from unit.

• Replace belt guard by reversing above procedure. Be
sure slot in bottom of belt guard is under head of tine
shield bolt and all nuts are tightened securely.

CAP NUTS
AND WASHERS

BELT

GUARD

TINE
SHIELD
NUT

® With throttle control in “SLOW” position, turn idle needle

valve in (clockwise) until engine begins to die, then turn
out (counterclockwise) until engine runs rough. Turn
valve to a point midway between those two positions.

IDLE HPM ADJUSTMENT

» To adjust idle RPM, rotate throttle linkage counterclock

wise and hold against stop while adjusting idle speed
adjusting screw to obtain 1750 RPM. Release throttle

linkage.

ACCELERATION TEST

• Move throttle control lever from “SLOW” to “FAST”
position. If engine hesitates or dies, turn idle needle

valve out (counterclockwise) 1/8 turn. Repeat test and
continue to adjust, if necessary, until engine acceler
ates smoothly.

High speed stop is factory adjusted. Do not adjust or

damage may result.

IMPORTANT: NEVER TAMPER WITH THE ENGINE

GOVERNOR. WHICH IS FACTORY SET FOR PROPER

ENGINE SPEED. OVERSPEEDING THE ENGINE ABOVE
THE FACTORY HIGH SPEED SETTING CAN BE
DANGEROUS. IF YOU THINK THE ENGINE-GOVERNED

HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR

NEAREST AUTHORIZED SERVICE CENTER/

DEPARTMENT, WHICH HAS THE PROPER EQUIPMENT
AND EXPERIENCE TO MAKE ANY NECESSARY
ADJUSTMENTS.

FIG. 22

ENGINE

TO ADJUST CARBURETOR (See Fig. 23)

The carburetor has a high speed fixed jet and has been
preset at the factory and adjustment should not be neces
sary. However, minor adjustments may be required to
compensate for differences in fuel, temperature, altitude or
load. If the carburetor does need adjustment, proceed as
follows.

In general, turning the idle needle valve in (clockwise)
decreases the supply of fuel to the engine giving a leaner
fuel/air mixture. Turning the needle valve out (counter
clockwise) increases the supply of fuel to the engine giving
a richer fuel/air mixture.

IMPORTANT: DAMAGE TO THE NEEDLES AND THE

SEATS IN CARBURETOR MAY RESULT IF SCREWS ARE
TURNED IN TOO TIGHT.

PRELIMINARY SETTING

• Aircleaner assembly must be assembled to the carbu
retor when making carburetor adjustments.

• With engine off, turn idle needle valve in (clockwise)

closing it finger tight and then turn valve out (counter

clockwise) 1-1/2 turns.

FINAL SETTING

• Start engine and allow to warm for five minutes. Make
final adjustments with engine running at idle and tine
control lever in “OFF” position.

16

STORAGE

Immedi-ff-h'^ /ui'i iiil‘="i ip* Jt>i end of the

season uf if (If ijim v^il. nt.t ^ u* eu r i me « nr more.

i fLvr: if!«* hll»-r '/ith
Uxia' <e I lilt- ',-ti I. t‘ i.-S- r. liu Idiiiy

ra.jic _ itdi It £it« v»pfcn ilame

A

oi e|iark /J>3« tne eiigiof la cool
before -storing in afs^ eacloitire.

TILLER

• Clean entire tiller (See “CLEANING” in the Customer
Responsibilities section of this manual).

• Inspect and replace belts, if necessary (See belt re
placement instructions in the Service and Adjustments

section of this manual).

» Lubricate as shown in the Customer Responsibilities

section of this manual.

• Be sure that all nuts, bolts and screws are securely

fastened. Inspect moving parts for damage, breakage
and wear. Replace if necessary.

• Touch up all rusted or chipped paint surfaces; sand

lightly before painting.

ENGINE

FUEL SYSTEM

IMPORTANT: IT IS IMPORTANT TO PREVENT GUM
DEPOSITS FROM FORMING IN ESSENTIAL FUEL
SYSTEM PARTS SUCH AS THE CARBURETOR, FUEL
FILTER, FUEL HOSE, OR TANK DURING STORAGE.

ALSO, EXPERIENCE INDICATES THAT ALCOHOL

BLENDED FUELS (CALLED GASOHOL OR USING

ETHANOL OR METHANOL) CAN ATTRACT MOISTURE
WHICH LEADS TO SEPARATION AND FORMATION OF
ACIDS DURING STORAGE. ACIDIC GAS CAN DAMAGE

THE FUEL SYSTEM OF AN ENGINEWHILE IN STORAGE.

• Drain the fuel tank.

• Start the engine and let it run until the fuel lines and
carburetor are empty.

• Never use engine or carburetor cleaner products in the
fuel tank or permanent damage may occur.

• Use fresh fuel next season.

NOTE: Fuel stabilizer is an acceptable alternative in
minimizing the formation of fuel gum deposits during stor
age. Add stabilizer to gasoline in fuel tank or storage
container. Always follow the mix ratio found on stabilizer

container. Run engine at least 10 minutes after adding

stabilizerto allow the stabilizer to reach the carburetor. Do
not drain the gas tank and carburetor if using fuel stabilizer.

EKtilNE OIL

r- 3in ' >'i i A/iTp engine warm) and replace with clean oil.
( >ee“t NC 'NF” in the Customer Responsibilities section of

this manual).

CYLINDERS

Remove spark plug.
Pour 1 ounce (29 ml) of oil through spark plug hole into

cylinder.

Pull starter handle slowly several times to distribute oil.
Replace with new spark plug.

OTHER

Do not store gasoline from one season to another.

Replace your gasoline can if your can starts to rust.
Rust and/or dirt in your gasoline will cause problems.

If possible, store your unit indoors and cover it to give

protection from dust and dirt.
Cover your unit with a suitable protective cover that

does not retain moisture. Do not use plastic. Plastic
cannot breathe which allows condensation to form and
will cause your unit to rust.

IMPORTANT: NEVER COVER TILLER WHILE ENGINE

AND EXHAUST AREAS ARE STILL WARM.

17

TROUBLESHOOTING POINTS

PROBLEM CAUSE

Will not start

Hard to start 1. Throttle control not set properly.

Loss of power 1. Engine is overloaded.

1. Out of fuel.

2. Engine not “CHOKED” properly.

3. Engine flooded.

4. Dirty air cleaner.

5. Water in fuel.

6. Clogged fuel tank.

7. Loose spark plug wire.

8. Bad spark plug or improper gap.

9. Carburetor out of adjustment.

2. Dirty air cleaner.

3. Bad spark plug or improper gap.

4. Stale or dirty fuel.

5. Loose spark plug wire.

6. Carburetor out of adjustment.

2. Dirty air cleaner.

3. Low oil level/dirty oil.

4. Faulty spark plug.

5. Oil in fuel.

6. Stale or dirty fuel.

7. Water in fuel.

8. Clogged fuel tank.

9. Spark plug wire loose.

10. Dirty engine air screen.

11. Dirty/clogged muffler.

12. Carburetor out of adjustment.

13. Poor compression.

CORRECTION

1. Fill fuel tank,

2. See “TO START ENGINE” in the Operation section.

3. Wait several minutes before attempting to start.

4. Clean or replace air cleaner cartridge.

5. Drain fuel tank and carburetof, and refill tank with

fresh gasoline,

6. Remove fuel tank and clean.

7. Make sure spark plug wire is seated properly on plug.

8. Replace spark plug or adjust gap.

9. Make necessary adjustments.

1. Place throttle control in “FAST” position.

2. Clean or replace air cleaner cartridge.

3. Replace spark plug or adjust gap.

4. Drain fuel tank and refill with fresh gasoline.

5. Make sure spark plug wire is seated properly on plug.

6. Make necessary adjustments.

1. Set depth stake and wheels for shallower tilling.

2. Clean or replace air cleaner cartridge.

3. Check oil level/change oil.

4. Clean and regap or change spark plug.

5. Drain and clean fuel tank and refill, and clean
carburetor.

6. Drain fuel tank and refill with fresh gasoline.

7. Drain fuel tank and carburetor, and refill tank with
fresh gasoline,

8. Remove fuel tank and clean.

9. Connect and tighten spark plug wire.

10. Clean engine air screen.

11. Clean/replace muffler.

12. Make necessary adjustments.

13. Contact an authorized service center/department.

Engine overheats

Excessive bounce/
difficult handling

Soil balls up or clumps 1. Ground too wet.

Engine runs but tiller
won’t move

Engine runs but labors

when tilling

1. Low oil ievel/dirty oil.

2. Dirty engine air screen.

3. Dirty engine.

4. Partially plugged muffler,

5. Improper carburetor adjustment.

1. Ground too dry and hard.

2. Wheels and depth stake incorrectly adjusted.

1. Tine control is not engaged.

2. V-belt not correctly adjusted.

3. V-belt is off pulley(s).

1. Tilling too deep.
2, Throttle control not properly adjusted.
3, Carburetor out of adjustment.

1. Check oil level/change oil.

2. Clean engine air screen.

3. Clean cylinder fins, air screen, muffler area.

4. Remove and clean muffler,

5. Adjust carburetor to richer position.

1. Moisten ground or wait for more favorable soil
conditions.

2. Adjust wheels and depth stake.

1. Wait for more favorable soil conditions.

1. Engage tine control.

2. Inspect/adjust V-belt.

3. Inspect V-belt.

1. Set depth stake for shallower tilling.

2. Check throttle control setting.

3. Make necessary adjustments.

18

REPAIR PARTS

HANDLE ASSEMBLY

TILLER - - MODEL NUMBER HDF550F

KEY

NO.

10
11 73220500
12 98000129
13
1416674A150428

PART
NO.

1 131268X428

72140512 Bolt, Carriage 5/16-18 UNC x 1-1/2

2

9266R Grip, Handle

3
4 153138 Handle, L.H.

73680500 Locknut, Crown 5/16-18

5
6 19111116
7 19121414 Washer 3/8 x 7/8 x 14 Ga.

8 74760516

74760512

9

10040500

72140506 Bolt, Carriage 5/16-18 x 3/4 Gr. 5

153139

DESCRIPTION

Bracket, Handle

Washer 11/32 x 11/16 x 16 Ga.

Bolt, Hex Hd. 5/16-18 x 1
Bolt, Hex Hd 5/16-18 x 3/4

Washer, Lock 5/16

Nut, Hex 5/16-18
Nut, Flanged 5/16-18

Panel, Handle
Handle, R.H.

KEY

NO.

17 106932X
18
19
20 154805

21 12000027

22 101248K
23
24 2613J Rod, Reverse, Lower
25
26 76020412 Pin, Cotter 1 /8 X 3/4
27 76020308 Pin, Cotter 3/32 X 1/2
28
29 12000059

NOTE: All component dimensions are given inU.S.inc

PART
NO.

3066J Cable, Control, Tine
151229 Lever, Control, Tine

1778E
19131316 Washer 13/32 x 13/16 x 16 Ga.

19131312 Washer 13/32 x 13/16 x 12 Ga.

1 inch = 25.4 mm - •

DESCRIPTION

Knob, Control, Reverse

Pin, Pivot
Ring, Klip
Rod, Reverse, Upper
Pin, Retaining

Retaining, Ring

19

REPAIR PARTS

TILLER--MODEL riOMBEL HPF550F

BELT GUARD EY ASSEMBLY

KEY
NO. NO.

10
11
12 104213X
13
14
15
16
17 2649M
18

PART

159268

1

9484R Clip, Cable

2

86777

3
4

74610812
73220600

5

19131316

6

2009J

7

1271SOX Assembly, Arm, Reverse Idler

8

74760628

9

156705X428 Guard, Belt
19091016 Washer 9/32 x 5/8 x 16 Ga.

72140405
133035 V-Belt (Forward Motion)
2614J V-Belt (Reverse)

12000028 Ring, Retainer
151236 Pulley, Flat, Trans.

DESCRIPTION

Assembly, Bracket, Belt Guard
Screw, Hex, Washer Hd., Slotted,

Thd. Cutting #10-24 x 1/2 Type D
Bolt, Hex 1/2-20 x 3/4
Nut, Hex 3/8-16
Washer 13/32 x 13/16 x 16 Ga.
Pulley, Idler, Reverse

Bolt, Hex 3/8-16 x 1-3/4

Nut, Cap 1/4- 20
Bolt, Carriage 1/4-20 x 5/8

Key, Square

KEY PART
NO.

19 110550X
20

21 73350600

22 161806

23 162290
24 74760620
25 106968X
26 73350500
27 73220400
28 10040400
29 109227X
30 23200404 '

31 101189L

32

33
34

NOTE: All component dimensions given in U.S. ir

20

NO.

12000036

151223
73510400
19091416

1 inch =

DESCRIPTION

Bolt, Belt Guard
Ring, Klip
Nut, Hex, Jam 3/8-16
Pulley, Idler
Arm, Idler

Bolt, Hex 3/8-16 x 1-1/4
Shaft, Idler Arm
Nut, Hex, Jam 5/16-18
Nut, Fin Hex 1/4-20

Washer LK Hvy Helical 1/4

Pad, Idler
Screw, Set, Socket, Headless
C.P. 1/4-20 X 1 /4
Sheave, Engine

Pulley, V-Groove, Trans.
Nut Keps Hex 1/4-20

Washer 9/32 x 7/8 x 16 Ga.

25.4 mm

REPAIR PARTS

TILLER - - MODEL NUMBER HDF550F

WHEEL AMD DEi^TH 5 . -F it ASSEMBLY

KEY

NO.

10
11
121374760524

PART

NO.

1 9194R Pin, Clevis

2

74760520 Bolt, Hex 5/16-18 X 1-1/4

3

74760512 Bolt, Hex 5/16-18x3/4

4

73220500 Nut, Hex 5/16-18

5

10040500

6

73800600 Locknut, w/washer 3/8-16
7 4921H
8

1952J Support, Depth Stake, R.H.

9

122233X
326J
74780628

1951J

DESCRIPTION KEY

Washer, Lock 5/16
Clip, Hairpin
Stake, Depth

Pin, Clevis
Bolt, Hex, Fin 3/8-16 x 1-3/4
Bolt, Hex 5/16-18 x 1-1/2 Gr. 2
Support, Depth Stake, L.H.

PART

NO.

14 120958X Washer
15 5388J Spring, Stake
16 121117X
17 9188R Wheel
18 19131311 Washer 13/32 x 13/16 x 11 Ga.
19 9190R
20 73680600 Locknut, Crown 3/8-16

21 74760516 Bolt, Hex 5/16-18 x 1

22 73800500

NOTE: All component dimensions given in U.S. inch

NO.

1 inch = 25.4 mm

DESCRIPTION

Bolt, Shoulder

Bracket, Wheel

Locknut, w/insert 5/16-18

21

REPAIR PARTS

TINE ASSEMBLY

TILLER - - MODEL NUMBER HDF550F

KEY
NO.

PART

NO.

1 156934 Tine, Outer, R.H.

2

3146R

3 156932 Tine, Inner, R.H.

DESCRIPTION KEY

Clip, Hairpin

PART

NO.

NO.

4

156931 Tine, Inner, L.H
5 156933 Tine, Outer, L.H
6 4929H

DESCRIPTION

Pin, Clevis

22

REPAIR PARTS

TRANSMISSION

TILLER - - MODEL NUMBER HDF550F

KEY

NO.

10
11
12 151222 Transmission

PART

NO.

1 74760524
2 74780652
3 19131311
5 73800600
6 9057R428
7 1949J Bracket, Engine, R.H.
8 1948J Bracket, Engine, L.H.

9

10040500
73220500
74760544

DESCRIPTION

Bolt, Hex 5/16-18 X 1-1/2 Gr. 2

Bolt, Hex, Fin 3/8-16x3-1/4

Washer 13/32 x 13/16 x 11

Locknut, Hex, w/washer 3/8-16

Shield, Tine

Washer, Lock 5/16

Nut, Hex 5/16-18
Bolt, Hex 5/16-18 X 2-3/4

KEY
NO.

13 19171616
14 9173R
15
16 19091412

17 19092016 Washer 9/32 x 1-1/4 x 16 Ga.
18 10040400
19
20 Engine, Briggs and Stratton, Model

NOTE: All component dimensions given in U.S. inches.

PART
NO.

73510500 Nut, Keps 5/16

74610412 Bolt, Hex 1/4-28 x 3/4 Gr. 5

1 inch = 25.4 mm

DESCRIPTION

Washer 17/32 x1 x 16 Ga.

Spacer, Split
Washer 9/32 x 7/8 x 12 Ga.
Washer, Lock 1/4

No. 137202 ^ ■

23

REPAIR PARTS

DECALS

TILLER - MODEL LOMBFR f^lOFSSOF

KEY
NO.

1 157377 Decal, Logo
2 157380 Decal, Logo
3 157378 Decal, HP, Reverse
4 141914
5
6 141909 Decal, Caution
7
8 141906 Decal, Warning, Rotating Tines
9 157381

10 273721
11

PART

NO.

141907

271948 Decal, Briggs & Stratton

162215 Decal, Tine Shield Wrng. Dorn
163659
163660 Manual, Owner’s (Spanish)

DESCRIPTION

Decal, Reverse, Tine Control
Decal, Hand Placement

Decal, Hvy Duty
Decal, 5 HP

Manual, Owner’s (English)

24