Rally FN620J User manual

I
OWNER'S MANUAL
MODELNO. FN620J
3.5 HP17Inch
Tiller Assembly
•Operation
Customer Responsibilities
• Service and Adjustments
•Storage
• Troubleshooting
•Repair Parts
For Parts and Service, contact our authorized distributor: call 1-800-849-1297
For Technica| Assistance: call 1-800-829-5886
181117 1.7.02 TR
PRINTED IN U.S.A.

SAFETY RULES
SAFE OPERATION PRACTICES FOR WALK-BEHIND POWERED ROTARYTILLERS
TRAINING
• Read the Owner's Manual caretully. 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 ofall 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).
• Donot operatethe equipment without wearing adequate
outergarments. Wear footwear that will improve 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 crossing
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 inspect
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 machine
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.
Neveroperate the tillerwithoutproperguards, 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 bythe
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 tiller forward. Ifthis
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 atfrequent intervals for proper tightness to be sure
the equipment is in safe working condition.
Never store the machine with fuel inthe 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 THEREISA
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 symbolto point out impor- I
tant safety precautions. It means
CAUTION!!! BECOME ALERT!!! YOUR
SAFETY IS INVOLVED.
CAUTION: Always disconnect spark
plug wire and place wire where itcannot
contact spark plug in order to prevent
accidental starting when setting up,
transporting, adjusting or making re-
pairs.
WARNING
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.
2

PRODUCT SPECIFICATIONS
GASOLINE CAPACITY:
3IL(API-SF-SJ):
CAPACITY: 20 oz./0.6L)
SPARK PLUG :
GAP: .030"/0.76mm)
2 Quarts (1,89L)
Unleaded Regular
SAE 30W (Above 32°F/0°C)
SAE 5W-30 (Below 32_F/0°C)
Champion
RJ19LM
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
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.
Always observe the "SAFETY RULES".
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.
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 SPARKARRESTER 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 FOR SPARK ARRESTER.
TABLE OF CONTENTS
SAFETY RULES ........................................................... 2
PRODUCT SPECIFICATIONS ....................................... 3
CUSTOMER RESPONSIBILITIES ...................... 3, 10-12
ASSEMBLY ................................................................ 4-5
OPERATION ............................................................... 6-9
MAINTENANCE SCHEDULE ....................................... 10
SERVICE & ADJUSTMENTS .................................. 12-14
STORAGE ................................................................... 15
TROUBLESHOOTING ................................................. 16
REPAIR PARTS-TILLER ......................................... 17-22
WARRANTY ................................................................ 23
3

ASSEMBLY
Your new tiller has been assembled at the factory with exception of those parts left unassembled for shipping purposes. To
ensure safe and properoperation 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
Asocket wrench set willmake 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 lefthand ismentioned in this manual, itmeans
when youare intheoperatingposition (standing behind tiller
handles).
FRONT
LEFT RIGHT
OPERATOR'S
POSITION
FIGURE 1
(2) Hex Bolts 5/16-18 x 3/4
CONTENTS OF HARDWARE PACK
U!ll!l!!l!l!tl!l!l!131!l!131!l!l!l!!
(2) Hex Bolts 5116-16 x 1 (4) Washers 3/8 x 7/8 x 14 Ga.
©
(1) Hex Bolts 5/16-18 x 1-1/4 (5) Hex Nuts 5/16-18 (5) Lock Washers 5/16
4

ASSEMBLY
UNPACK CARTON & INSTALL HANDLE (See
Fig. 2)
I_ AUTION: Becarefulofexposedstaples I
when handling or disposing of cartoning
material.
IMPORTANT: WHEN UNPACKING AND ASSEMBLING
TILLER, OE CAREFUL NOT TO STRETCH OR KINK
CABLE(S).
Cut cable ties securing handles.
The handle may be assembled in high or low position.
Slowly lift handle assembly up, route cable(s) as shown
and align handle holes with desired handle panel hole
and slot.
Loosely assemble hardware as shown. Be sure the
shorter (3/4" long) hex bolt isassembled in lower hole of
handle. Repeatforoppositeside. Tightenallhardware
securely.
Cut cable ties securing tiller to skid and remove tiller
from skid.
• Remove screw securing depth stake to skid and discard
the screw.
HANDLE
PANEL
NUT LOCK
WASHERTILLER
HANDLE
HANDLE_
PANEL
BOLTS
E_ FLAT
WASHER
CABL
TILLER J_'_
HANDLES l_-
HEX BOL
_16-18X1"
HEX BOLT
5_6-18X_4"
FIG. 2
INSTALL DEPTH STAKE ASSEMBLY
(See Fig. 3)
•Loosen nut =A".
Remove hex nut, Iockwasher and bolt securing depth
stake support to engine brackets. Save the hardware for
reassembly.
• Raise and position depth stake support to align holes in
support with holes "B" and "C" in engine brackets.
Install into holes "B" and "C" the hardware removed
earlier and one (1) each the same hardware from parts
bag. Tighten both bolts securely.
Tighten nut "A"
Assemble depth stake between depth stake supports
with clevis pin and hairpin clip.
Depth stake must move freely. If it does not, loosen
support bolt.
NUT "A"
HEX BOLT,
LOCK WASHER,
AND HEX NUT
DEPTH STAKE
SUPPORT
\
HOLES"B"&"C"
HEX BOLTS,
LOCK WASHERS,
AND HEX NUTS
ENGINE BRACKET
HALVES
NUT "A" DEPTH
STAKE
STAKE
SPRING
CLEVIS PIN
AND HAIRPIN
CLIP
SUPPORT
BOLT
FIG. 3
HANDLE HEIGHT
•Handle height may be adjusted to better suit operator.
(See "HANDLE HEIGHT" in the Service and Adjust-
ments section of this manual).
TILLING WIDTH
Tillingwidthmay be adjusted to better handle your tilling
conditions (See"TIN EARRAN GEMENT"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).
5

OPERATION
KNOW YOUR TILLER
READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR TILLER.
Compare the illustrationswith yourtillertofamiliarize yourself with thelocation of various controls and adjustments. Save this
manual forfuture reference.
These symbols may appear on your Tiller or in literature supplied with the product. Learn and understand their
meaning.
TILLING FORWARD NEUTRAL OIL
OR WARNING ON OFF
FORWARD TINE
CONTROL
THROTTLE
DEPTH STAKE
CONTROL
TINE
SHIELD
RECOIL
STARTER
HANDLE
TINES
FIG. 4
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.
THRO'n'LE CONTROL - Controls engine speed.
CHOKE CONTROL - Used when starting a coldengine.
DEPTH STAKE - Controls forward speed and the depth at
which the tiller will dig.
RECOIL STARTER HANDLE - Used to start the engine.
6

OPERATION
The operation of any tiller can result in foreign objects thrown into the eyes, which can result
in severe eye damage. Always wear safety glasses or eye shields before starting your tiller
and while tilling. We recommend a wide vision safety mask over spectacles or standard
safety glasses.
DEPTH STAKE (See Fig. 6)
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 tine control to stop movement.
ENGINE
Move throttle control to "STOP" position.
Never use choke to stop engine.
FORWARD TINE
CONTROL IN "ON"
(DOWN) POSITION
%TINE CON-
TROL
IN "OFF" (UP) POSITION
"HROTTLE CHOKE 3L
FIG. 5
TINE OPERATION (See Fig. 5)
•Squeeze tine controlto handle.
TILLING
The speed and depth of tillingis regulated bythe 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 enablethe tinesto penetrate the ground. Also, the
more the depth stake is lowered into the ground the deeper
the tines will dig.
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 atthe second or third hole
from the top.
HAIRPIN CLIP
AND CLEVIS PIN
DEPTH
STAKE
FIG. 6
TRANSPORTING YOUR TILLER
II
CAUTION: Before lifting or transport- |
ing, allow tiller engine and muffler to [
cool. Disconnectsparkplugwire. Drain
gasoline from fuel tank.
AROUNDTHEYARD
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.
AROUNDTOWN
• Disconnect spark plug wire.
• Drain fuel tank.
• Transport in upright position to prevent oil leakage.
7

OPERATION
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 Responsibilities
section of this manual.
OIL
OIL
FILLER
PLUG
FIG. 7
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 G RADE
GASOLINE TO HELP INSURE GOOD COLD WEATHER
STARTING.
WARNING: Experience indicatesthat alcohol blended fuels
(called gasohol or using ethanol or methanol) can attract
moisture which leads to separation and formation of acids
dudng storage. Acidic gas can damage the fuel system of
an engine while instorage. To avoid engine problems, the
fuel system should beemptied before storage of 30 days
or longer. Drain the gas tank, start the engine and let it run
untilthe fuel linesandcarburetorareempty. Usefresh fuel
next season. See Storage section of this manual for
additional information. Never use engine or carburetor
cleaner productsinthefueltank orpermanent damage may
Occur.
CAUTION: Fill to within 112 inch of top
offuel tank to prevent spills and to allow
for fuel expansion. If gasoline is acci-
dentally spilled, move machine away
from area of spill. Avoid creating any
source ofignition 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 Fig. 8)
|
_lb CAUTION: Keep drive control bar in I
"DISENGAGED" position when starting I
engine.
When starting engine for the firsttime or ifengine has run out
offuel, itwill take extra pulls ofthe recoil starter to move fuel
from the tank to the engine.
Make sure spark plug wire is properly connected.
Move shift lever indicator to "N" (neutral) position.
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 ofcompression cycle (rope will pull slightly
harder at this point).
Pull recoil starter handle quickly. Do not let starter
handle snap back against starter. Repeat ifnecessary.
• If engine fires but does not start, move choke control to
halfchoke position. Pull recoil starter handle until engine
starts.
• When engine starts, slowly move choke control to"RU N"
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
engagingtines.
NOTE: If at a high altitude (above 3000 feet) or in cold
temperatures (below 32°F), the carburetorfuel mixture may
need to be adjusted for best engine performance. See 'q'O
ADJUST CARBURETOR" in the Service and Adjustments
section of this manual.
NOTE: Ifengine does not start, see troubleshooting points.
SPARK
PLUG
CONTROL
CONTROL
RECOIL STARTER
HANDLE
FIG. 8
8

OPERATION
BREAKING IN YOUR TILLER
Break-in your belts, pulleys and tine control before you
actually begin tilling.
•Start engine, tip tines off ground by pressing handles
down and engage line 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 Adjust-
ments section of this manual.
TILLING HINTS
I_ CAUTION: Until you are accustomed to
handling your tiller, start actual field use
with throttle in slow position (mid-way
between "FAST" and "IDLE").
To helptiller move forward, liftup 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 isthrough trial and error
and depends upon the soil condition. (The harder or wetter
the ground, the slower the engine and tine speed needed.
Under these poorconditions, at fast 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 is 4" to 6" (10-15 cm). A
tiller will also clear the soil of unwanted vegetation. The
decomposition 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 proper tilling. Tines will
not readily penetrate dry, hard soil which may contribute
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 your tilling operation.
You will find tilling much easier ifyou leave a row untilled
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.
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 1" to 3" (2.5-7.5 cm).
• 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).
A
FIG. 10
9

CUSTOMER RESPONSIBILITIES
MAINTENANCE
SCHEDULE
FILL 1NDATES
AS YOU COMPLETE
REGULAR SERVICE SERVICE DATES
Check Engine Oil Level If If
Change Engine Oil 1_1,2
Oil Pivot Points V'
Inspect Spark Arrester/Muffler If
Inspect Air Screen I_
Clean or Replace Air Cleaner Cartridge I/2
Clean Engine Cylinder Fins I,/
Replace Spark Plug If
1-Changemoreoftenwhenoperatingundera heavy loadorinhigh ambient temperatures.
2-Senlicemoreoftenwhenoperating in dirtyor 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 maintain tiller as
instructed in this manual.
Some adjustments will need to be made periodically to
propedy maintain your tiller.
All adjustments in the Service and Adjustments section of
this manual should be checked at least once each season.
•Once a yearyou 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 air-fuel
mixture and help your engine run betterand 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
°IDLER
ARM
*SAE 30 OR 10W-30 MOTOR OIL
** REFER TO CUSTOMER RESPONSIBILITIES "ENGINE"
SECTION
10

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
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 with API service
classification SF-SJ. Select the oil's SAE viscosity grade
according to your expected temperature.
SAE VISCOSITY GRADES I
I I
F-20 0 30 32 40 60 80 100
C -30 -20 -10 010 20 30 40
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
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 ifthetractor isnot used for 25 hours inone 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.
TO CHANGE ENGINE OIL (See Figs. 11 and 12)
Determine temperature range expected before oil change.
All oil must meet API service classification SF-SJ.
•Be sure tiller is on level surface.
• Oil will drain more freely when warm.
• Catch oilin 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 oilfiller plug. Be careful not toallow dirfto enter
the engine.
Refill engine with oil. See "CHECK ENGINE OIL
LEVEL" in the Operation section of this manual.
OIL
DRAII_
PLUG
L
OIL FILLER
PLUG
AIR CLEANER (See Fig. 13)
Service air cleaner cartridge everytwenty-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
cartridge. They may cause deterioration
of thecartridge. Donot oilcartridge. Do
not use pressurized air to clean or dry
cartridge.
AIR _COVER
i '2RC ggR
FIG. 13
COOLING SYSTEM (See Fig. 14)
Your engine isair cooled. For properengine performance
and long life keep yourengine clean.
• Clean air screen frequently using astiff-bristled brush.
Remove blower housing and clean as necessary.
Keep cylinder fins free of dirt and chaff.
CYLINDER FINS BLOWER
SCREEN
FIG, 14
FIG. 12 1

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 ifdamaged.
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 is shown in "PRODUCT SPECIFI-
CATIONS" on page 3 of this manual.
TRANSMISSION
Your transmission issealed and will only require lubrication
if 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 notrecommend using a garden hosetoclean 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.
SERVICE AND ADJUSTMENTS
I& AUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come into
contact with plug. I
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.
•Ifa 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.
ENGINE
BRACKETS
HANDLE
PANEL
NUTS (ALSO 2
ON LEFT SIDE
OF TILLER)
FIG. 15
TINE ARRANGEMENT
Your outertines can be assembled inseveral differentways
to suit yourtilling or cultivating needs.
_CAUTION: Tinesaresharp, Wear gloves I
or other protection when handling tines.
NORMAL TILLING - 17" PATH (See Fig. 16)
Assemble holes"A" intine hubstoholes "B"intineshaft.
-----_-- CLEVIS OUTER TINE
PIN
AiB A
HAIRPIN CLIP INNER TINE
FIG. 16
MID-WIDTH TILLING -15" PATH (See Fig. 17)
• Assemble holes "A" in tine hubs to holes "C" in tine
shaft.
FIG, 17
12

SERVICE AND ADJUSTMENTS
NARROW TILLING- 10-1/4" PATH (See Fig. 18)
Remove outer tines.
I o
INNER TINES ONLY
ol
FIG. 18
NARROW CULTIVATING - 12-1/2" PATH (See Fig. 19)
• Remove inner tines.
Assemble holes "A" in tine hubs toholes "C" intine shaft.
O O Oo
FIG. 19
EDGING - 9-5/8" PATH (See Fig. 20)
• Remove inner tines.
•Assernbleholes"A"intinehubstoholes"D'intineshaft.
0 0 00
FIG. 20
NOTE: Additional tine arrangements can be attained by
moving outer tines to opposite side of tiller which will point
tines outward. Always keep sharp edges of tines rotating
forward from above.
TINE OPERATION CHECK (See Fig. 21)
Be sure tines do not rotate when engine is running and tine
control is in the "OFF" position.
I_ ARNING: Disconnectsparkplugwire I
from spark plug to prevent starting while
checking tine operation.
FINAL CHECK "OFF" POSITION
•With tine control "OFF" (up), push down on handle to
raise tines offthe ground.
•Slowly pull recoil starter handle while observing tines.
Tines should not rotate.
•Iftines rotate, place loopof idler spring ina lower linkof
chain and retest.
13
FINAL CHECK "ON" POSITION
With tine control "ON"(held down to handle) push clown
on handle to raise tines off the ground.
Slowly pull recoil starter handle while observing tines.
Tines should rotate forward.
• Iftines do not rotate, place loop of idler spring in a higher
link of chain and retest.
NOTE: If"ON"position check requiredadjustment, recheck
"OFF" position adjustment to insuretines do not rotate when
control is "OFF" (up).
TINE CONTROL
"OFF" POSITION_
TINE CONTROL _._'_'_-_\
"ON" POSITION ....
/
IDLER \
\
FIG. 21
TO REMOVE BELT GUARD (See Fig. 22)
Remove cap nut and washer from side of belt guard.
Loosen (do not remove) tine shield nuton underside of
tine shield and cap nut on top of belt guard. '
Pull belt guard out and away from unit.
Replace belt guard byreversing above procedure. Be
sure slot in bottom of belt guard is under head of tine
shield bolt and all nuts are tightened securely.
BELT GUARD
_'/_ SCREW
FIG. 22

SERVICE AND ADJUSTMENTS
TO REPLACE V-BELT (See Fig. 23)
Replace V-belt if it has stretched considerably or if it has
cracks or frayed edges.
Belt guard must be removed to service belt. See 'q'O
REMOVE BELT GUARD" in this section of manual.
BELTREMOVAL
Remove V-belt from transmission pulley first and then
from engine pulley.
BELTREPLACEMENT
Install new V-belt to engine pulley first then to transmis-
sion pulley. Be sure belt ispositioned on inside groove
of both pulleys, inside all belt guides and rests on idler
pulley.
CHECKTINE OPERATION
See "TINE OPERATION CHECK" in this section of
manual.
REPLACE BELTGUARD
BELT
\
ENGINE PULLEY
BELT
GUIDE \V-BELT
IDLER
PULLEY
rRANSMISSION
PULLEY
FIG. 23
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 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.
14

STORAGE
Immediately prepare your tiller for storage at the end of the ENGINE OIL
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 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 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 ifusing fuel stabilizer.
Drain oil (with engine warm) and replace with clean oil. (See
"ENGINE" in the Customer Responsibilities section of this
manual).
CYLINDER(S)
Remove spark plug.
•Pour1 ounce (29 ml) of oilthrough spark plug hole into
cylinder.
Pull starter handle slowly several timestodistribute 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 itto give
protection from dust and dirt.
Coveryour unit with a suitable protective coverthat does
not retain moisture. Do net 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.
15

TROUBLESHOOTING POINTS
CAUSE CORRECTIONPROBLEM
Will not start
Hard to start
Loss of power
Engine overheats
Excessive bounce/
difficult handling
Soil balls up or clumps
Engine runs but tiller
won't move
Engine runs but labors
when tilling
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.
1. Throttle control not set properly.
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.
1. Engine is overloaded.
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.
t0. Dirty engine air screen.
11. Dirty/clogged muffler.
12.
13. Carburetor out of adjustment.
Poor compression.
1. Low oil level/dirty oil.
2. Dirty engine air screen.
3. Dirty engine.
4. Partially plugged muffler.
5. Improper carburetor adjustment.
"l. Ground too dry and hard.
2. Wheels and depth stake incorrectly adjusted.
1. Ground too wet.
1. Tine control is not engaged.
2. V-belt not correctly adjusted.
3. V-belt is off pulley(s).
1. Tilling toodeep.
2. Throttle control not properly adjusted.
3. Carburetor out of adjustment.
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 carthdge
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 propedy 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 cartndge.
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.
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 dcher position.
1. Moisten ground or wait for more favorable soil
conditions.
2. Adjust wheels and depth stake.
1. Wait for more favorable soLIconditions.
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.
16

REPAIR PARTS
TILLER - - MODEL NUMBER FN620J
HANDLE ASSEMBLY
3
16
KEY PART
NO. NO.
1 137176X505
2 72140512
39266R
4 151473
5 73680500
6 19111116
7 19121414
8 74760516
9 74760512
10 10040500
11 73220500
12 98000129
53
13
34
DESCRIPTION KEY PART
NO. NO.
Bracket, Handle 13 72140506
Bolt, Carriage 5/16-18 UNC x 1-1 ;2 14 9209R505
Grip, Handle 15 74760524
Handle, L.H. 16 151474
Locknut, Crown 5/16-18 18 3067J
Washer 11/32x11/16x16Ga. 19 164937
Washer 3/8 x 7/8 x 14 Ga. 23 8206H
Bolt, Hex Hd. 5/16-18 x 1 28 19131312
Bolt, Hex Hd 5/16-18 x 3/4 34 3070J
Washer, Lock 5/16
Nut, Hex 5/16-18
Nut, Flanged 5/16-18
DESCRIPTION
Bolt, Carriage 5/16-18 x 3/4 Gr. 5
Panel, Handle
Bolt Fin Hex 5/16-18 x 1-1/2
Handle, R.H.
Cable Asm Clutch
Lever Clutch
GdpHandle
Washer 13/32 x 13/16 x 12 Ga.
Spring
NOTE: Allcomponent dimensions are given in U.S.
inches. 1 inch = 25.4 mm
17

REPAIR PARTS TILLER - - MODEL NUMBER FN620J
BELT GUARD AND PULLEY ASSEMBLY
KEY
NO.
1
2
4
5
6
7
8
9
10
12
13
14
PART
NO.
23230506
130812
74610812
17490440
174898
170488
139155
165768X505
109227X
9180R
12000028
151223
DESCRIPTION
Screw, Set 5/16-18 x 3/8
Sheave, Engine
Bolt, Hex 1/2-20 x 3/4
BoltThd Roller 1/4-20 X 2-1/2
Shield Inner Guard Belt
Screw Hex Wsh Sit #10-24 x .50
Spacer Split .523 x .718 x 2
Guard, Belt
Pad, Idler
V-Belt Drive
Ring, Retainer
Sheave, Transmission
KEY PART
NO. NO. DESCRIPTION
15 165504 Nut J Clip #8
16 12000036 Ring, Klip
17 73350600 Nut, Hex, Jam 3/8-16
18 161806 Pulley, Idler
19 175377 Arm, Idler
20 74760620 Bolt, Hex 3/8-16x 1-1/4
21 106968X Shaft, Idler Arm
25 73350500 Nut, Hex, Jam 5/16-18
NOTE: All component dimensions given in U.S. inches.
1 inch = 25.4 mm
18

REPAIR PARTS TILLER - - MODEL NUMBER FN620J
WHEEL AND DEPTH STAKE ASSEMBLY
9
16
12
21
3
10 22
22
4
47
17 19 _"
20
20 ""I
19 18
KEY
NO.
1
2
3
4
5
7
8
9
10
13
15
16
PART
NO. DESCRIPTION
9194R Pin, Clevis
74760520 Bolt, Hex 5/16-18 x 1-1/4
74760512 Bolt, Hex 5/16-18 x 3/4
73220500 Nut, Hex 5/16-18
10040500 Washer, Lock 5/16
4921H Clip, Hairpin
318.1 Support, Depth Stake, R.H.
9193R Stake, Depth
9551R Rivet, Drilled
317J Support, Depth Stake, L.H.
5388..I Spring, Stake
121117X Bolt, Shoulder
17 16
KEY PART
NO. NO.
17 9186R
18 19131311
19 9190R
20 73680600
21 74760516
22 73800500
23 74780524
24 73800500
DESCRIPTION
Wheel
Washer 13/32 x 13/16 x 11 Ga.
Bracket, Wheel
Locknut, Crown 3/8-16
Bolt, Hex 5/16-18 x 1
Locknut, w/insert 5/16-18
Bolt Fin Hex 5/16-18 UNC x 1-1/2
Nut Lock Hex W/Ins 5/16 x 18 UNC
NOTE: All component dimensions given in U.S. inches.
1 inch = 25.4 mm
19

REPAIR PARTS
TINE ASSEMBLY
TILLER - - MODEL NUMBER FN620J
6/
6
I
6
6
KEY
NO.
1
2
3
PART
NO.
165774
4921H
165772
DESCRIPTION
Tine, Outer, R.H.
Retainer,Spring
Tine, Inner, R.H
KEY
NO.
4
5
6
PART
NO.
165771
165773
9194R
DESCRIPTION
Tine, Inner, L.H.
Tine, Outer, L.H.
Pin, Clevis
20