Poulan 164778 User Manual

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JDO Hot itarTiOW^

OWNER'S MANUAL

MODEL NO. HDF550G

5 HP 24 Inch

Tiller

Assembly

• Operation

• Customer Responsibilities

• Service and Adjustments

• Storage

• Troubleshooting

• Repair Parts

For Parts and Service, contact our authorized distributor: cai! 1-800-849-1297

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

Poutan

sr's Manual

164778 2.4.98 TR
PRINTED IN U.S.A.

SAFETY RULES

A

Safe Operation Practices for Waik-Behind Powered Rotary Tillers

A

TRAINING

« 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 dear 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 grave! 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 tilierfor any damage, and repair the damage

before restarting and operating the tiller.

® Exercise caution to avoid slipping or failing.
® 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 all 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

til! 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.

« 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 tillerforward. 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 thefuei 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 essentia! 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 SPECIFfCATiONS

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 (APl-SF/SG/SH):
(CAPACITY; 20 02./0.6L)

SAE 30 (Above 32T/0“C)
SAE 5W-30 (Below 32°F/0°C)

NUMBER HDF550G
SERIAL

NUMBER

__________

SPARK PLUG:
(GAP: .030'70.76mm)

Champion
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.

• Followaregularscheduie in maintaining, caring forand

using your tiller.

• Follow instructions under “Customer Responsibilities”

and “Storage” sections of this Owner’s Manual.

TABLE OF CONTENTS

SAFETY RULES
PRODUCT SPECIFICATIONS
CUSTOMER RESPONSIBILITIES

WARRANTY .................................................................. 4

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

OPERATION

.......

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

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

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

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

2

3

3,11-13

7-10

MAINTENANCE SCHEDULE
SERVICE & ADJUSTMENTS
STORAGE

TROUBLESHOOTING

REPAIR PARTS-TILLER

...................................................................... 16

...

........

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

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

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

...

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

LIMITED WARRANTY

The Manufacturer warrants to the original consumer purchaser that this product as manufactured Is free from defects 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.
Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the

2.

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.

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

3.
original purchase,

This Warranty applies only to products which have been properly assembled, adjusted, operated, and maintained in

4.
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 norma! wear of the product.

Exclusions: Excluded from this Warranty are belts, tines, tine adapters, normal wear, normal adjustments, standard

5.
hardware and normal maintenance.

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

6.

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

American Yard Products Canada contact:
Service Department American Yard Products
P.O. Box 1687 ^ *'*^*^7 Dhve, Units 5-8
Orangeburg, SC 29116 USA Mississauga, Ontario

L5T1L6

13-15

17

18-23

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 riqhts
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.

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 PGSiTION (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).

Q1IEIH

(2) Hex Bolts 5/16-18x3/4

(s

(1) Cotter Pin

n, H.,.U, ■ II

tpMIIII

CONTENTS OF HARDWARE PACK

(2) Hex Bolts 5/16-18x1

(1) Clevis Pin

(6) Hex Nuts 5/16-18

(2) Hex Bolts 5/16-18x1 -1/4

(6) Lock Washers 5/16

ñSSEMBVf

UNPACK CARTON ^ INSTALL HANDLE (See
Fig. 2)

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

A

IMPORTANT: WHEN UNPACKING 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 alt
hardware securely.

® Cut cable ties securing tiller to skid and remove tiller

from skid.

cartoning material.

INSTALL DEPTH STAKE ASSEySLY
(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

KNOW YOUR TILLER

READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR TILLER.
Compare the illustrations with your tiller to familiarize yourself with the location of various controls and adjustments. Save

this manual for future reference.

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

RUN

I

1 FNRA©©*^ ’•IXlffl'fi^

TILLING FORWARD NEUTRAL REVERSE CAUTION ENGINE ENGINE

OR WARNING ON OFF

FAST SLOW CHOKE FUEL OIL

STOP

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 tiller can resuit in foreign objects thrown into the eyes, which can
resuit in severe eye damage. Aiways wear safety giasses or eye shields before starting
your tiller and while tilling. We recommend a wide vision safety mask for over spectacles
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 STAKE (See Fig. 6)

Adjust depth stake by removing the hairpin dip 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, setwheels.ai 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 TRANSPORT

CAUTION: Before lifting or transport
ing, allow tiller engine and muffler to
cool. Disconnect spark plug wire. Drain
gasoline from fuel tank.

AROUND THE YARD
« Tip depth stake forward untii 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,

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.

PILL 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.

ADD GASOLINE

* Fill fuel tank. Use fresh, clean, regular unleaded

gasoline. (Use of leaded gasoline will increase carbon
and lead oxide deposits and reduce valve life.)

IMPORTANT: WHEN OPERATING IN TEMPERATURES

BELOW 32°F (0“C), USE FRESH, CLEAN, WINTER GRADE

GASOLINE TO HELP INSURE GOOD COLD WEATHER
STARTING.

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. Drain the gas tank, start the
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
orcarburetorcleaner products in thefue! tank or permanent
damage may occur.

CAUTION: Fill to within 1/2 inch of top
of fuel tank to prevent spills and to

A

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.

TO START ENGINE (See Pig. 8)

CAUTION: Keep tine control in

A

When starting engine for the first time or If engine has run

out of fuel, it will 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 fuii “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).

« Puli recoil starter handle quickly. Do not lei 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.

position when starting engine.

‘OFF’

OPERATION

BREAKING IN YOUR TILLER

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

® Start engine, tip tines off ground by pressing handies

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: Untllyou 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 siower the engine and tine speed
needed. Underthese poorconditions,atfasi 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 clearthe 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 propertiiiing. 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 soli will “ball-up” or clump
during titling. 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.

You will find tilling much easier if you leave a row
untiiled between passes. Then go back between tilled
rows. (See Fig. 9) There are two reasons for doing this.
First, wide turns are much easier to negotiate than
about-faces. Second, the tiller won’t be pulling itself,
and you, toward the row next to it.

Set depth stake and wheel height for shallow tilling

when working extremely hard soil or sod. Then work
across the first cuts at normal depth.

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

CUSTOMER RESPONSIBILITIES

MAINTENANCE
SCHEDULE y

FILL IN DATES /^/

AS YOU COMPLETE /ff/ i

REGULAR SERVICE / V ^

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yi/i

f <o / n)

A. / A >

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/ Co / Cq /

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§/ SERVICE DATES

Check Engine Oil Level
Change Engine Oil

Oil Pivot Points

Inspect Spark Arrester / Muffler
inspect Air Screen

Clean or Replace Air Cleaner Cartridge

Clean Engine Cylinder Fins
Replace Spark Plug

1 - Change more often when operating under a heavy load or in high ambient temperatures,
2 - Service more often wrhen 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 fuii 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 heip your engine run better and last
longer.

✓

✓

%/

^,2

✓

✓

✓

i/

✓

LUBRICATION CHART

BEFORE EACH USE

« Check engine oil level.
« Check tine operation.
* Check for loose fasteners.

LUBRICATION

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

ARM

* SAE 30 OR 10W-30 MOTOR OIL
** REFER TO CUSTOMER RESPONSiBILiTIES “ENGINE” SECTION

11

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, leaves, spilled oil, or fuel. Remove fuel from tank before tipping

A

unit for maintenance. Clean muffler area of all grass, dirt, and debris.
Do not touch hot muffler or cylinder fins as contact may cause burns.

ENGINE

LUBRICATION

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

SAE VISCOSITY GRADES

jjjjjjjjjjj^Qdl^

-20“ 0“

“C -30°

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 (O'^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 tiller 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.

20° -10° 0“ 10° 20° 30° 40°

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

30° 32° 40°

FIG. 11

60°

ht

80° 100°

AIR CLEANER (See Fig, 13)

Service aircleaner cartridge 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 notto 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 oli 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.

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, whichever comes 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
contact With plug.

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 higher handle height is desired, loosen the four nuts

securing handle panel to engine brackets.

® Slide handle panel to desired location.

® Tighten the four nuts securely.

TRANSMISSION

Your transmission is sealed and will not require lubrication
unless sen/iced.

CLEANING

« Clean engine, wheels, finish, etc. of al! 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.

MID-WIDTH TILLING - 22" PATH (See Fig. 17)

« Assemble holes “A” in tine hubs to holes “C” in tine

shaft.

TINE ARRANGEMENT

Your outer tines 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

NARROW TILLING/CULTIVATING -12-3/4" PATH (See

Fig. 18)

« Remove outer tines.

NOTE: When reassembling outer tines, be sure right tine
assembly (marked “R”) and left tine assembly (marked “L”)
are mounted to correct side of tine shaft.

SERVICE AND ADJUSTMENTS

T I N E O P E R A T i O M

For propertine operation, forward tine control lever must be
against control body and all stack removed from inner wire
of control cable when control is in the “OFF” (up) position.

If lever and cable are loose, loosen cable clip at lower end
of cable. Pull up on cable to remove slack, without
extending spring on end of cable, and retighten cable clip.

FINAL CHECK “OFF” POSITION

• With tine control “OFF” (up), push down on handle to
«• Slowly pull recoil starter handle while observing tines.

• If tines rotate, inner wire of control cable is too tight

® Recheck in “OFF” position and adjust if necessary.

FINAL CHECK “ON” POSITION
« With tine control “ON" (held down to handle) push down

» Slowly pull recoil starter handle while observing tines.

• If tines do not rotate, inner wire of control cable is too

• Recheck in “ON” position and adjust if necessary,

NOTE: if “ON” position check required adjustment, re

check “OFF" position adjustment to insure tines do not

rotate when control is “OFF” (up).

CHECK (See Fig. 19)

WARNING: Disconnect spark plug wire
from spark plug to prevent starting
while checking tine operation.

raise tines off the ground.

Tines should not rotate.
which is extending lower spring and engaging tines.

Loosen cable clip and push down on cable only enough
to relieve spring tension. Tighten cable clip.

on handle to raise tines off the ground.
Tines should rotate forward,

loose. Loosen cable clip and pull cable up to remove
slack and retighten clip.

14 REPLACE BELT GUARD

TO REI^OVE BELT GUARD (See Fig. 20)

» 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.

TO REPLACE V-BELTS (See Figs. 21 and 22)

Replace V-belis if they have stretched considerably or if

they show cracks or frayed edges. There are two (2) V­belts - forward (inside) and reverse (outside).

Belt guard must be removed to service belts. See “TO

REMOVE BELT GUARD” in this section of manual.

NOTE: Observe carefully routing of both belts and location
of all belt guides before removing belts.

BELT REMOVAL
“ Remove reverse idler pulley from idler arm.
« Remove reverse (outside) V-be!i.

® Remove forward (inside) V-belt from transmission pul

ley first and then from engine pulley.

BELT REPLACEMENT
® Instaff new forward (inside) V-belt to engine pulley first

then to transmission pulley. Be sure belt is positioned
on Inside groove of both pulleys, inside all belt guides
and rests on idler pulley.

® Before installing reverse (outside) V-bett, turn belt

“inside out”. Twist so wide, flat surface of belt is to

inside.

® Wrap V-belt around reverse idler pulley and reas

semble idler to idler arm. Tighten securely. Be sure

belt is between reverse idler pulley and idler arm pin.

» install beitio outside groove of transmission pulley. Be

sure belt is inside all belt guides and rests on outside
groove of engine pulley.

CHECK TINE OPERATION

• See “TINE OPERATION CHECK” in this section of
manual.

SERVICE AND ADJUSTMENTS

ENGINE

TO ADJUST CARBURETOR

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, see engine
manual.

IMPORTANT: NEVER TAMPER WITH THE ENGINE
GOVERNOR, WHICH tS FACTORY SET FOR PROPER
ENGINE SPEED. OVERSPEEDtNG 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.

15

STORAGE

Immediately prepare your tiller for storage at the end of the
season or If the unit will not be used for 30 days or more.

CAUTION: Never store the tiller with
gasoline in the tank inside a building
where fumes may reach an open flame

or spark. Allow the engine to cool
before storing in any enclosure.

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 ail 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

F U E L S Y S T E M

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

ENGINE OIL

Drain oil (with engine warm) and replace with clean oil.
(See “ENGINE” in the Customer Responsibilities section of
this manual).

CYLINDER

• 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

wilt cause your unit to rust.

IMPORTANT: NEVER COVER TILLER WHILE ENGINE

AND EXHAUST AREAS ARE STILL WARM.

16

TROUBLESHOOTING POINTS

PROBLEM

Will not start 1. Out of fuel.

Hard to start

Loss of power

CAUSE CORRECTION

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.

1. Throttle control not set properly.

2. Dirty air cleaner.

3. Bad spark plug or improper gap.

4. Stale or diiiy fuel.

5. Loose spark plug wire.

6. Carburetor out of adjustment.

1. Engine is overloaded.

2. Dirty air cieaner.

3. Low oij ievel/dirty oil.

4. Faulty spari< 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. Oirty/clogged muffler,

12. Cafturetor out of adjustment.

13. Poor comp ression.

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 cieaner cartridge.

5. Drain fuel tank and carburetor, 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 tilting.

2. Clean or replace air cleaner cartridge.

3. Check oil levei/change oii.

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. Ciean/replace muffler.

12. Make necessary adjustments.

13. Contact an authorized service center/department.

Engine overheats

Excessive bounce/
difflcuit 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 levei/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.

17

■REPAIR PARTS

HANDLE ASSEMBLY

TILLER - - lyiODEL NUMBER HDF550G

KEY
NO.

10
11 73220500
12
13 72140506
1416674A150428

PART
NO.

1 131268X428
2 72140512
3 9266R
4 153138

73680500

5
6 19111116
7 19121414

74760516

8

9 74760512

10040500

98000129

153139

DESCRIPTION

Bracket, Handle
Bolt, Carriage 5/16-18 UNC x 1-1/2
Grip, Handle
Handle, L.H.

Locknut, Crown 5/16-18 21 12000027
Washer 11/32 x 11/16 x 16 Ga.
Washer 3/8 X 7/8 x 14 Ga.

Bolt, Hex Hd. 5/16-18x1

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

Washer, Lock 5/16 26 76020412

Nut, Hex 5/16-18

Nut, Flanged 5/16-18

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

Panel, Handle

Handle, R.H.

KEY

NO.

17 106932X Knob, Control, Reverse
18
19 151229 Lever, Control, Tine
20 154805 Pin, Pivot

22

23 1778E
24 2613J Rod, Reverse, Lower
25 19131316

27 76020308
28 19131312 Washer 13/32 x 13/16 x 12 Ga.
29 12000059 Retaining, Ring

NOTE: All component dimensions are given in U.S. inc

PART
NO.

3066J Cable, Control, Tine

101248K Rod, Reverse, Upper

1 inch = 25.4 mm

18

DESCRIPTION

Ring, Klip
Pin, Retaining
Washer 13/32 x 13/16 x 16 Ga.

Pin, Cotter 1/8 X 3/4
Pin, Cotter 3/32 X 1/2

REPAIR PARTS

TILLER - - MODEL NUMBER HDF550G

BELT GUARD AND PULLEY ASSEMBLY

U L

<

/. '-s

KEY PART
NO.

10 156705X428

11 19091016

12 104213X

13 72140406
14 133035
15

16

17
18 151236

NO.

1 159268

2

9484R
86777

3
4

74610812
5 73220600
6 19131316

2009J

7
8 1271SOX
9 74760628

2614J

12000028

2649M Key, Square

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

Thd. Cutting #10-24 x 1/2 Type D

Washer 13/32 x 13/16 x 16 Ga.
Assembly, Arm, Reverse Idler
Guard, Beit

Washer 9/32 x 5/8 x 16 Ga.

V-Beli {Forward Motion)
V-Beli (Reverse)

DESCRIPTION

Clip, Cable

Boit, Hex 1/2-20x3/4
Nut, Hex 3/8-16

Pulley, Idler, Reverse
Bolt, Hex 3/8-16x1-3/4

Nut, Cap 1/4-20
Bolt, Carriage 1/4-20 x 3/4

Ring, Retainer
Pulley, Flat, Trans.

KEY PART
NO.

19 110550X Bolt, Belt Guard
20

21

22 161806
23 162290 Arm, Idler
24
25
26
27
28
29 109227X
30

31

32 151223
33
34

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

NO.

12000036

73350600 Nut, Hex, Jam 3/8-16

74760620 Bolt, Hex 3/8-16 X 1-1/4

106968X
73350500
73220400

10040400 Washer LK Hvy Helical 1/4
23200404

101189L
73510400

19091416

1 inch =

DESCRIPTION

Ring, Klip
Pulley, Idler

Shaft, idler Arm
Nut, Hex, Jam 5/16-18
Nut, Fin Hex 1/4-20

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

19

■REPAIR PARTS ^

TILLER - - MODEL NUMBER HDF550G

WHEEL AND DEPTH STAKE ASSEMBLY

m ¡!

/> i

I

^CN'VT'i'i

V

KEY
NO.

10
11
12
13

PART
NO.

9194R Pin, Clevis

1

74760520 Bolt, Hex 5/16-18x1-1/4

2

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

3

73220500

4
5

10040500

73800600

6

4921H Clip, Hairpin

7

1952J

8

122233X

9

326J
74780628
74760524

1951J

DESCRIPTION

Nut, Hex 5/16-18
Washer, Lock 5/16
Locknut, w/washer 3/8-16

Support, Depth Stake, R.H.
Stake, Depth
Pin, Clevis
Bolt, Hex, Fin 3/8-16x1-3/4
Bolt, Hex 5/16-18 x 1-1/2 Gr. 2
Support, Depth Stake, L.H.

If- %

KEY

NO.

14
15
16

17
18
19 9190R
20

21

22

NOTE: All component dimensions given In U,S. inch

PART
NO.

120958X
5388J
121117X Bolt, Shoulder
9188R
19131311

73680600
74760516 Bolt, Hex 5/16-18 x 1
73800500 Locknut, w/insert 5/16-18

1 inch “ 25.4 mm

DESCRIPTION

Washer
Spring, Stake

Wheel
Washer 13/32 x 13/16 x 11 Ga.
Bracket, Wheel
Locknut, Crown 3/8-16

20

REPAIR PARTS

TINE ASSEMBLY

TILLER - - MODEL NUMBER HDF550G

KEY
NO.

1 156934

2

3146R

3 156932

PART
NO.

DESCRIPTION

Tine, Outer, R.H.
Clip, Hairpin
Tine, inner, R.H.

21

KEY PART

NO. NO.

4 156931
5 156933
6 4929H

DESCRIPTION

Tine, inner, L.H.
Tine, Outer, L.H.

Pin, Clevis

REPAIR PARTS

TRANSMISSION

TILLER - - MODEL NUMBER HDF550G

J "•r'' .-H

/i 4 '■%' ii#1

'j-i

ii

20 ^

KEY
NO.

10
11

12

PART
NO.

74760524 Bolt, Hex 5/16-18 X 1-1/2 Gr. 2

1

74780652

2

19131311

3

73800600

5

9057R428

6
7

1949J
1948J

8

10040500

9

73220500
74760544
151222

DESCRIPTION

Bolt, Hex, Fin 3/8-16x3-1/4
Washer 13/32x13/16x11
Locknut, Hex, w/washer 3/8-16
Shield, Tine
Bracket, Engine, R.H.
Bracket, Engine, L.H.
Washer, Lock 5/16
Nut, Hex 5/16-18
Bolt, Hex 5/16-18x2-3/4
Transmission

KEY

NO.

13
14 9173R Spacer, Split
15
16
17
18
19
20 Engine, Briggs and Stratton, Model

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

PART
NO.

19171616
73510500 Nut, Keps 5/16

19091412
19092016
10040400
74610412

1 inch = 25.4 mm

DESCRIPTION

Washer 17/32 x1 x 16 Ga.

Washer 9/32 x 7/8 x 12 Ga.
Washer 9/32 x 1-1/4 x 16 Ga.
Washer, Lock 1/4
Bolt, Hex 1/4-28 X 3/4 Gr, 5

No. 137202

22

REPAIR PARTS

DECALS

TILLER - - MODEL NUMBER HDF550G

KEY
NO.

4
6

10 273721 Decal, 5 HP
11

PART

NO.

157377

1
2 157380

157378

3

141914

5 141907

141909 Decal, Caution
7 271948 Decal, Briggs & Stratton
8 141906 Decal, Warning, Rotating Tines

157381

9

162215

164778 Manual, Owner’s (English)

164779

DESCRIPTION

Deca!, Logo
Decal, Logo
Decal, HP, Reverse
Decal, Reverse, Tine Control
Decal, Hand Placement

Decal, Hvy Duty
Decal, Tine Shield Wrng. Dorn
Manual, Owner’s (Spanish)

23

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