Safe Operation Practices for Waifc-Behind Powered Rotarf Tillers
A
TRAINING
• Plead the Owner’s IVIanual 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 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
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.
AWARNING 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.
Page 3
CONGRATULATIONS on your purchase of a new tiller. It
has been designed, engineered and manufactured to give
you the best possible dependability and performance.
PRODL ^ECIFICATIONS
HORSEPOWER:
5,0 HP
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”.
THE TOP OF THE TRANSMISSION,
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 FOR SPARK ARRESTER.
CUSTOMER RESPONSIBILITIES
• Read and observe the safety rules.
• Followaregularscheduie in maintaining, caring forand
using your tiller.
• Follow instructions under “Customer Responsibilitiesih
and “Storage” sections of this Owner’s Manual.
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.
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 for 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 In Canada contact:
Service Department American Yard Products
P.O. Box 1687 1580 Trinity Drive, Units 5-8
Orangeburg, SC 29116 USA Mississauga, Ontario
L5T 1L6
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.
Your new tiller has been assembled at the factor/ with exception of those parts left unassembled for shipping purposes. To
ensure safe and proper operation of your filler, 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.
When right or left hand is mentioned in this manual, it
means when you are in the operating position (standing
behind tiller handles).
Page 6
ASSEMBLY
UNPACKiflC^ cmm u fSee Fig. 2|
CAlflKjH: Be careful of exposed
stepics tAfhci! handling or diepasing of
A
IMPORTANT: WHEN UNPACKING AND ASSEMBLING
TILLER, BE CAREFUL NOT TO STRETCH OR KINK
CABLES.
• V/hi!e holding handle assembly, cut cable ties securing
handle assembly to top frame. Let handle assembly
rest on tiller.
• Remove top frame of carton.
• Slowly ease handle assembly up and place on top of
carton.
• Cut down right hand front and right hand rear corners
of carton, lay side carton wall down.
• Remove packing material from handle assembly.
catforiing material.
INSTALL HANDLE (See Figs. 3, 4, and 5)
• Insert one handle lock (with teeth facing outward) in
gearcase notch. (Apply grease on smooth side of
handle lock to aid in keeping lock in place until handle
assembly is lowered into position.)
Grasp handle assembly. Hold in “up” position. Be sure
handle lock remains m gearcase notch. Slide handle
assembly into position.
FIG. 4
Rotate handle assembly down. Insert rear carriage bolt
first, with bolt head on L.H. side of tiller and loosely
assemble locknut (See Fig. 5).
Insert pivot bolt in front part of plate and tighten.
Cut down remaining corners of carton and lay panels
flat.
Lower the handle assembly. Tighten nut on carriage
bolt so handle moves with some resistance. This will
allow for easier adjustment.
Place flat washer on threaded end of handle lock lever.
Insert handle lock fever through handle base and
gearcase. Screw in handle lock lever just enough to
hold lever in place.
Insert second handle lock (with teeth inward) in the slot
of the handle base (just inside of washer).
With handle assembly in lowest position, securely
tighten handle lock lever by rotating clockwise. Leav
ing handle assembly in lowest position will make it
easier to remove tiller from carton.
Page 7
ASSEMBLY
CONNECT SHIFT ROD (See Fig. 6)
“ Insert end of shift rod into hole of shift lever indicator.
• Insert hairpin clip through hole of shift rod to secure.
REMOVE TILLER FROM CRATE
• Make sure shift lever indicator is in “N” position (See
Fig. 6)
• Tilt tiller forward by lifting handle. Separate cardboard
cover from leveling shield.
• Rotate tiller handle to the right and pull tiller out of
carton.
ATTACH CLUTCH CABLE (See Fig. 7)
• Hook end of clutch cable through hole in control bar
bracket.
CHECK TIRE PRESSURE
The tires on your unit were overinflated at the factory for
shipping purposes. Correct and equal tire pressure is
important for best tilling performance.
• Reduce tire pressure to 20 PSI (1.4 kg/cm^).
HANDLE HEIGHT
• Handle height may be adjusted to better suit operator.
(See “TO ADJUST HANDLE HEIGHT” in the Service
and Adjustments section of this manual).
Page 8
»««gamsiSSiamBw»
MMm i'iii'k
. AND SAFETY RULES BEFORE OPERATING YOUR TILLER.
iVi.itp fi- I "• n )f> jii wiTr, yc,ur tiller to familiarize yourself with the location of various controls and adjustments. Save
*ni 'THiiu I r leirrPhCe.
Trmsfc synfcno r f i/ c.|, pta' on your Tiiier or in literature supplied «fith the product. Learn and understand their
Our tillers conform to the safety standards of the American National Standards Institute.
THROTTLE CONTROL - Used to control engine speed.
DRIVE CONTROL BAR - Used to engage tiller.
DEPTH STAKE - Controls depth at which tiller will dig.
LEVELING SHIELD - Levels tilled soil.
OUTER SIDE SHIELD - Adjustable to protect small plants
from being buried.
SHIFT LEVER - Used to shift transmission gears.
RECOIL STARTER HANDLE - Used to start the engine.
CHOKE CONTROL - Used when starting a cold engine.
8
Page 9
OPERATION
The operation of any tiiier can result in foreigr 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 the 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. 9)
TINES AND DRIVE
» Release drive control bar to stop movement.
• Move shift lever to “N” (neutral) position.
ENGINE
• Move throttle control to “STOP” position. If equipped
with stop switch, move switch to “STOP” position.
• Never use choke to stop engine.
TINE OPERATION - WITH WHEEL DRIVE
• Always release drive control bar before moving shift
lever into another position.
• Tjne movement is achieved by moving shift lever to
(S)till position and engaging drive control bar.
DEPTH STAKE (See Fig. 10)
The depth stake can be raised or lowered to allow you more
versatile tilling and cultivating, or to more easily transport
your tiller.
TILLING (See Fig. 11)
• Release depth stake pin. Puli the depth stake up for
increased tilling depth. Place depth stake pin in hole of
depth stake to lock in position.
• Place shift lever indicator in till position.
• Hold the drive control bar against the handle to start
tilling movement. Tines and wheels will both turn.
• Move throttle control to “FAST” position for deep tilling.
To cultivate, throttle control can be set at any desired
speed, depending on how fast or slow you wish to
cultivate.
IMPORTANT: ALWAYS RELEASE DRIVE CONTROL BAR
BEFORE MOVING SHIFT LEVER INTO ANOTHER
POSITION.
FORWARD-WHEELS ONLY/TINES STOPPED
• Release drive control barand move shift lever indicator
to “F” (forward) position. Engage drive control bar and
tiiier will move forward.
REVERSE - WHEELS ONLY/TINES STOPPED
DO NOT STAND DIRECTLY BEHIND TILLER.
Release the drive control bar.
Move throttle control to “SLOW” position.
Move shift lever indicator to “R” (reverse) position.
Hold drive control bar against the handle to start tiller
movement, g
Page 10
OPERATION
TURNiNG
• Release the drive control bar.
• Move throttle control to “SLOW” position.
» Place shift lever indicator in “F” (forward) position.
I ines will not turn.
• Lift handle to raise tines out of ground.
• Swing the handle in the opposite direction you wish to
turn, being careful to keep feet and legs away from
tines.
• When you have completed your turn-around, release
thedrivecontrolbarandiowerhandle. Placeshift lever
in till position and move throttle control to desired
speed. To begin tilling, hold drive control bar against
the handle.
OUTER SIDE SHIELDS (See Fig. 11)
The back edges of the outer side shields are slotted so that
the shields can be raised for deep tilling and lowered for
shallow tilling to protect small plants from being buried.
Loosen nut “A” in slot and nut “B”. Move shield to desired
position (both sides). Retighten nuts.
TO TRANSPORT
CAUTION: Before lifting or transport
ing, allow tiller engine and muffler to
A
cool. Disconnect spark plug wire. Drain
gasoline from fuel tank.
CHECK ENGINE OIL LEVEL (See Fig. 12)
• The engine in your unit has been shipped, from the
factory, already filled with SAE 30 summer weight oil.
• With engine level, clean area around oil filler plug and
remove plug.
• Engine oil should be to point of overflowing when
engine is level. For approximate capacity see “PROD
UCT SPECIFICATIONS” on page 3 of this manual. All
oil must meet A.P.I. Service Classification SF, SG or
SH.
• 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 in this manual.
AROUND THE YARD
• Release the depth stake pin. Move the depth stake
down to the top hole for transporting the tiller. Place
depth stake pin in hole of depth stake to lock in position.
This prevents tines from scuffing the ground.
• Place shift lever indicator in “F” (forward) position for
transporting.
• Hold the drive control bar against the handle to start
tiller movement. Tines will not turn.
• Move throttle control to desired speed,
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.
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
or carburetor cleaner products in the fuel 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 tor 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 oft any spilled oil
or fuel. Do not store, spill or use gaso
line near an open flame.
10
Page 11
OPERATION
TO START ENGINE (See Fig. i j|
CAUTiON; Keep drive control bar in
"DiSENGAGED'’ position when start
A
When starting engine for the first time or if engine has run
out of fuel, itwill take extra pulls of the 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 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. Pull 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 (above 3000 feet) or in cold
temperatures (below 32°F), the carburetor fuel mixture
may need to be adjusted for best engine performance. See
“TO ADJUST CARBURETOR” in the Service and Adjust
ments section of this manual.
NOTE: If engine does not start, see troubleshooting points.
ing engine.
■ JNG HINTS
CAUTION Until you are accustomed to
handling your tiller, start actual field
A
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 matterenriches 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 contrib
ute to excessive bounce and difficult handling of your
tiller. Hard soil should be moistened before fiilihgf
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.
For easier handling of your tiller, leave about 8 inches
(20 cm) of unfilled soil between the first and second
tilling passes. The third pass will be between the first
and second (See Fig. 14).
Do not lean on handle. This takes weight off the wheels
and reduces traction. To get through a really tough
section of sod or hard ground, apply upward pressure
on handle or lower the depth stake.
use with throttle in slow position (mid
way between “FAST" and ‘iDLE’yi.
TINE SHEAR PINS
The tine assemblies on your tiller are secured to the tine
shaft with shear pins (See “TINE REPLACEMENT” in the
Service and Adjustments section of this manual).
If the tiller is unusually overloaded or jammed, the shear
pins are designed to break before internal damage occurs
to the transmission.
• If shear pin(s) break, replace only with those shown in
the Repair Parts section of this manual.
11
Page 12
OPERATION
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). Lower the outer side shields to
protect small plants from being buried.
• 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. 15).
FIG. 15
ADJUST WHEELS FOR CULTIVATING (See
Figs. 16 and 17)
• Place blocks under right hand side of tiller and remove
hairpin clip and clevis pin from right hand wheel.
• Move wheel outward approximately 1 inch (2.5 cm)
until hole in inner wheel hub lines up with inner hole in
axle.
• Replace clevis pin and hairpin clip on inside of wheel
and remove blocks.
• Repeat preceding steps on left hand side.
NOTE; In extremely rough conditions and while cultivating,
the wheels should be moved outward on the axle for
increased stability.
12
Page 13
CUSTOMER RESPONSIBILITIES
MAINTENANCE
SCHEDULE
/, / Co / Co /
/ C
A
/ ^
' / v/V
/ V V
✓
✓
FILL IN DATES
AS YOU COMPLETE
REGULAR SERVICE
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 when operating in dirty or dusty conditions.
A
✓
✓
■ ' ’/
✓
✓ 2
✓
✓
SERVICE DATES
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, the operator must
maintaih 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 airfilter 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
* THROTTLE
CONTROL
X
^ ENGINE
."'I J’f
/
* IDLER
BRACKET
' SAE 30 OR 10W-30 MOTOR OIL
’* REFER TO CUSTOMER RESPONSIBILITIES “ENGINE” SECTION
'WHEEL
HUB
'DEPTH STAKE
PIN
LEVELING
SHIELD
HINGES
D
13
Page 14
CUSTOMER RESPONSIBILITIES
Disconnect spark plug wire before performing any maintenance {except carburetor adjustment! to prevent
accidental ciartirsg of enginG.
Prevent fires! Keep the engine free of grass icaves. spilled oil or fuel. Remove fuel from tank before tipping unit
for maintenance Clean muffler area of ait grass^ dirt- and debris.
Do not touch hot muffler or cylinder fins as contact may cause bums.
ENGINE
LUBRICATION
Use only high quality detergent oil rated with API service
classification SF, SG or SH. Select the oil’s SAE viscosity
grade according to your expected temperature.
SAE VISCOSITY GRADES
°f -20*U"
°C -30*-20*
TEMPERA! URE RANG E AflTC IP'^ TFD BEFORE NEXT OIL CHANGE
O' 'V 10
a eo'
80*
20*
FIG. 18
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 ¡none 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. 18 and 19)
Determine temperature range expected before oil change.
All oil must meet API service classification SF, SG or SFI.
Be sure tiller is on level surface.
Oil will drain more freely when warm.
Use a funnel to prevent oil spill on tiller, and 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.
100“
30* 40=
AIR CLEANER (See Fig. 20)
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
cartridge. They may cause deteriora
A
COOLING SYSTEM (See Fig. 21)
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.
tion of the cartridge. Do not oil car
tridge. Do not use pressurized air to
clean or dry cartridge.
14
Page 15
CUSTOMER RESPONSIBILmES
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 is 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
contact with plug.
TRANSMiSSiON
Yourtransrnis.sion is sealed 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 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.
TILLER
TO ADJUST HANDLE HEIGHT (See Fig. 22)
Select handle height best suited for your tilling conditions.
Handle height will be different when tiller digs into soil.
• First loosen handle lock lever.
• Handle can be positioned at different settings between
“HIGH” and “LOW” positions.
• Retighten handle lock lever securely after adjusting.
TIRE CARE
CAUTION: When mounting tires, un
A
» Maintain 20 PSI (1.4 kg/cmr) of tire pressure, if tire
pressures are not equal, tiller will pull to one side.
• Keep tires free of gasoline or oil which can damage
rubber.
TO REMOVE WHEEL (See Fig. 23)
• Place blocks under transmission to keep tiller from
tipping.
• Remove hairpin clip and clevis pin from wheel.
• Remove wheel and tire.
• Repair tire and reassemble.
less beads are seated, overinfiation
can cause an explosion.
15
Page 16
SERVICE AND ADJUSTMENTS
TiNE REPLACEMENT iSee Figs. 24, 25 and 26)
CAUTION: Tines are sharp. Wear
gloves or other protection when han
A
A badly worn tine causes your tiller to work harder and dig
more shaiiow. Most important, worn dnes cannot chop and
shred organic matter as effectively nor bury it as deeply as
good tines. A tine tnis worn needs to be replaced.
dling tines.
To maintain the superb tilling performance of this
machine the tines should be checked for sharpness,
wear, and bending, particularly the tines which are next
to the transmission. If the gap between the tines
exceeds 3-1/2 inches (9
or straightened as necessary.
New tines should be assembled as shown in Fig. 28.
Sharpened tine edges will rotate rearward from above.
(9 CM)
cm), they should be replaced
FIG. 24
SHARP EDGE
FIG. 26
16
Page 17
SERVICE AND ADJUSTMENTS
Tfi mmnm BF;LT guard (See Fig. 27)
N<.11^; i '-»i -aseof removal, remove hairpin clip and clevis
pin fif'ii ii-)t wheel. Pull wheel out from tiller about 1 inch
< m ).
«0 (2) cap nuts and washers from side of belt
gun 0
• Remove hex nut and washer from bottom of belt guard
(located behind wheel).
• Pull belt guard out and away from unit.
• Replace belt guard by reversing above procedure.
TO REPLACE GROUND DRIVE BELT (See
Figs. 27 and 28)
• Move left wheel and remove belt guard as described in
“TO REMOVE BELT GUARD”.
• Loosen belt auides “A” and “B” and also nuts “C” and
“D”.
• Remove old belt by slipping from engine pulley first.
® Place nev^ belt in groove of transmission pulley and
into engine pulley. BELT MUST BE IN GROOVE ON
TOP OF IDLER PULLEY. NOTE POSITION OF BELT
TO GUIDES.
• Tighten belt guides “A” and “B” and nuts “C” and' “D”.
» Check belt adjustment as described below.
• Replace belt guard.
• Reposition wheel and replace clevis pin and hafrpin
clip.
GROUND DRIVE BELT ADJUSTMENT (See
Fig. 25)
For proper belt tension, the extension spring should have
about 5/8 inch (16 mm) stretch when drive control bar is in
“ENGAGED” position. This tension can be attained as
follows:
• Loosen cable clip screw securing the drive control
cable.
• Slide cable forward for less tension and rearward for
more tension until about 5/8 inch (16 mm) stretch is
obtained while the drive control bar is engaged.
• Tighten cable clip screw securely.
Page 18
SERVICE AND ADJUSTMENTS
ENGINE
TO ADJUST THROTTLE CONTROL CABLE
(Ses- Lig. 29}
* Ld~s.-p cat !e clamp screw to allow cable to move.
® Mow thmitiP control lever on upper handle to “FAST”
pocitlun
* Full ihiottle C'lble out until engine bellcrank is back as
f. r iC ' Alll j J.
* Hold cable hi this position and tighten clamp screw
serur^-ly
TO ADJUST CARBURETOR (See Fig. 30)
The carburetor has a high speed jet and has been preset at
the factory and adjustment should not be necessary. How
ever, 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 IFSCREWS ARE
TURNED IN TOO TIGHT.
PRELIMINARY SETTING
• Air cleaner assembly must be assembled to the carbu
retor when making carburetor adjustments.
• Be sure the throttle control cable is adjusted properly
(see above).
• With engine off, turn idle needle valve in (clockwise)
dosing 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 drive
control bar in “DISENGAGED” position.
• With throttle control lever 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 RPM ADJUSTMENT
• To adjust idle RPM, rotate throttle linkage counter
clockwise 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 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.
18
Page 19
STORAGE
Immediately /oi'- siiier ft'r • ‘•jiaa- ji it a and (>i the
season or if tfio unit *ih i ;.t urea io.' jf- k-/-, ! nuae.
CAUiiOH' Never store the tiilei *illi
gasoline in the tank inside a building
where fumes may reach an open flame
A
or spark. Allow the engine to cooi
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
WHICFf 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” inthe 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 just. '
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.
19
Page 20
TROUBLESHOOTING POINTS
PROBLEM
Will not start
Hard to start1. Throttle control not set properly.
Loss of power1. Engine is overloaded.
CAUSECORRECTION
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.
10. Oil soaked air filter.
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.
1. Fill fuel tank,
2. See ‘TO START ENGINE” in Operation section.
3. Wait several minutes before attempting to start.
4. Clean or replace air cleaner 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.
10. Replace air filter.
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 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 dean 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 overheats1. Low oil level/dirty oil.
2. Dirty engine air screen.
3. Dirty engine,
4. Partially plugged muffler.
5. Improper carburetor adjustment.
Excessive bounce/
difficult handling
1. Ground too dry and hard.
1. Check oil level/change oil.
2. Clean engine air screen.
3. Clean cylinder fins, air screen, and muffler area.
4. Remove and clean muffler.
5. Adjust carburetor to richer position.
1. Moisten ground or wait for more favorable soil
conditions.
Soil balls up or clumps1. Ground too wet.1. Wait for more favorable soil conditions.
Engine runs but tiller
won’t move
Engine runs but labors
when tilling
Tines will not rotate
1. Drive control bar 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. Shear pin(s) broken.
1. Engage drive 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.
1. Replace shear pin(s).
20
Page 21
REPAIR PARTS
HANDLE ASSEMBLY
T I L ^ l - R - - M O D E L N U l v i B f R ^ » R 5 0 0 B
KEY
NO.
1073930600
11
12
13
PART
NO.
18389J
121248X
2
71191008
3
4126949X428
72110514Bolt. Carriage 5/16-18 x 1-3/4
5
108281XRod, Shift
6
772110608
4497H
8
9109229X
19131611
109228X
150217Handle
DESCRIPTION
Grip, Handle
Bushing, Snap
Screw, Pan Hd. #10-24
Bracket, Handle
Bolt, Carnage 3/8-16 x 1 Gr. 5
Clip, Hairpin
Lock, Handle
Nut 3/8-16
Washer 13/32 x 1 x 11 Ga.
Lever, Lock, Handle
KEY
NO.
14159232
15145821
17
18
21
22150744
24
25
26
27
28
NOTE: All component dimensions given in i
PART
NO.
102604XGrip, Bar Control
150696Bolt, Pivot
159227Bar, Control