Ariens Front Tine Tiller User manual

Owner's Manual
445666 Rev. 1 (21547993$)12.08.11
Printed in USA
FRONT TINE TILLER
ENGLISH
Models
902032 24" FRONT TINE TILLER
Gasoline containing up to 10% ethanol (E10) or up to 10% MTBE (methyl tertiary butyl
ether) is acceptable for use in this machine. The use of any gasoline exceeding 10%
ethanol (E10) or 10% MTBE will void the product warranty.

2
• 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.
• 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
boltsatfrequentintervalsforpropertightnesstoensure
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 ex-
tended 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
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.
SAFETY RULES
Safe Operation Practices for Walk-Behind Powered Rotary Tillers
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 clear of all persons, par-
ticularly 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 ade-
quate outer garments. 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 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),
removethewirefromthesparkplug,thoroughlyinspect
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.
• Takeallpossibleprecautionswhenleavingthemachine
unattended. Disengagethetines,shiftintoneutral,and
stop the engine.
• Before cleaning, repairing, or inspecting, shut off the
engineand make certainallmovingpartshave stopped.
Disconnectthesparkplugwire,andkeepthe wire away
fromtheplugtopreventaccidentalstarting.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.
WARNING
The engine exhaust from this product con-
tains chemicals known to the State of Cali-
fornia to cause cancer, birth defects, or other
reproductive harm.

3
PRODUCT SPECIFICATIONS
Gasoline Capacity: 3.6 Quarts (3.4L)
Unleaded Regular
Oil (API:SG-SL): SAE 10W-30(Above 32°F/0°C)
(Capacity: 22 oz./0.65L) SAE 5W-30(Below 32°F/0°C)
Spark Plug: NGK BR-5HS(ChampionRL86C)
(Gap: .030"/0.76mm)
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”.
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).
IFA SPARK ARRESTERIS 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
SIMILARLAWS. FEDERALLAWSAPPLYONFEDERALLANDS.
SEE YOUR AUTHORIZED SERVICE CENTER/DEPARTMENT
FOR SPARK ARRESTER.
CUSTOMER RESPONSIBILITIES
• Read and observe the safety rules.
• Follow a regular schedule in maintaining, caring for
and using your tiller.
• Followinstructionsunder“Maintenance”and“Storage”
sections of this Manual.
SERVICE & ADJUSTMENTS .................................13-15
STORAGE.................................................................... 16
TROUBLESHOOTING................................................. 17
PARTS..................................................................... 18-29
WARRANTY................................................................. 31
PARTS AND SERVICE................................................ 32
SAFETY RULES ............................................................ 2
PRODUCT SPECIFICATIONS....................................... 3
CUSTOMER RESPONSIBILITIES................................. 3
ASSEMBLY................................................................. 4-5
OPERATION ............................................................... 6-9
MAINTENANCE SCHEDULE ...................................... 10
MAINTENANCE .....................................................10-12
TABLE OF CONTENTS

4
ASSEMBLY
OPERATOR’S POSITION (See Fig. 1)
When right or left hand is mentioned in this manual, it
means when you are in the operating position (standing
behind tiller handles).
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 ensure proper tightness.
TOOLS REQUIRED FOR ASSEMBLY
A socket wrench set will make assembly easier. Standard
wrench sizes are listed.
(1) Utility Knife
(1) Screwdriver
(2) 1/2" Wrenches
OPERATOR'S POSITION
RIGHT
FRONT
LEFT
overhead_views_8
Fig. 1
(6) Lock Washers 5/16 (6) Hex Nuts5/16-18
(4) Hex Bolts5/16-18 x 1-1/4
(2) Hex Bolts5/16-18 x 1 (4) Washers 3/8 x 7/8 x 14
CONTENTS OF HARDWARE PACK

5
UNPACK CARTON & INSTALL HANDLE
(See Fig. 2)
CAUTION: Be careful of exposed
staples when handling or disposing
of cartoning material.
IMPORTANT: WHENUNPACKINGANDASSEMBLINGTILLER,
BE CAREFUL NOT TO STRETCH OR KINK CABLE(S).
• Cut cable ties securing handles.
• Slowlylift handleassembly up, route cable(s) as shown
and align handle holes with handle panel hole and
slot.
• Loosely assemble hardware as shown. The shorter (1"
long) hex bolt is assembled in lower hole of handle.
Repeatforoppositeside. Tightenallhardwaresecurely.
• Cut cable ties securing tiller to skid and remove tiller
from skid.
• Remove screws securing depth stake to skid and dis-
card the screws.
depth_stake_4
DEPTH
STAKE
SUPPORT
BOLT
HEX BOLTS,
LOCK WASHERS,
AND HEX NUTS
DEPTH STAKE
SUPPORT
NUT “A”
ENGINE BRACKET
HALVES
Fig. 3
STAKE
SPRING
Fig. 2
ASSEMBLY
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
• 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.)
INSTALL DEPTH STAKE ASSEMBLY
(See Fig. 3)
• Loosen nut “A”.
• Insert stake support between engine bracket halves
with stake spring down.
• Bolt stake support to engine brackets with bolts, lock
washers and nuts. Tighten securely. Tighten nut “A”.
• Depth stake must move freely. If it does not, loosen
support bolt.
TILLER
HANDLES
02051
CABLE(S)
&4(ANDLEª0ANEL?
FLAT
WASHER
HEX BOLT
5/16-18X1"
TILLER
HANDLE
HANDLE
PANEL
NUT LOCK
WASHER
HEX BOLT
5/16-18X1-1/4"
HANDLE
PANEL
BOLTS

6
KNOW YOUR TILLER
READ THIS 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.
Fig. 4
MEETS ANSI SAFETY REQUIREMENTS
Our tillers conform to the safety standards of the American National Standards Institute.
CHOKE CONTROL - Used when starting a cold engine.
DEPTH STAKE - Controls forward speed and the depth at
which the tiller will dig.
ENGINE ON/OFF SWITCH - The engine switch enables
and disables the ignition system.
FORWARD TINE CONTROL - Engages tines in forward
direction.
OPERATION
FUEL VALVE - The fuel valve opens and closes the pas-
sage between the fuel tank and the carburetor.
RECOIL STARTER HANDLE - Used to start the engine.
THROTTLE CONTROL - Controls engine speed.
DEPTH STAKE
TINE SHIELD
FORWARD TINE CONTROL
TINES
THROTTLE CONTROL
CHOKE CONTROL
ENGINE SWITCH
FUEL VALVE
RECOIL STARTER

7
00155
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 for over spectacles or standard
safety glasses.
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 clip and clevis
pin. Change depth stake to desired position. Replace the
clevis pin and hairpin clip.
• For normal tilling, set depth stake at the second or third
hole from the top.
WHEELS (See Fig. 6)
Adjust wheels by removing the hairpin clip and clevis pin.
Change wheel position. Replace the hairpin clip and clevis
pin.
• For normal tilling, set wheels at the second or third
hole from the top.
depth_stake_4
DEPTH
STAKE
STAKE
SPRING
HAIRPIN CLIP
AND CLEVIS PIN
WHEEL
Fig. 6
OPERATION
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
1. Release tine control to stop movement.
ENGINE
2. Set the speed control lever at the low speed position
and allow the engine to run at low speed for 1 or 2
minutes before stopping.
3. Turn the ENGINE SWITCH counterclockwise to the
position “ O ” (OFF).
4. Close the fuel valve.
5. Pullthestarter handle slowly and return the handle to its
original position when resistance is felt. This operation
is necessary to prevent outside moist air from intruding
into the combustion chamber.
NOTE: Never use choke to stop engine.
IMPORTANT: TO STOP ENGINE IN AN EMERGENCY, TURN
THE ENGINE SWITCH TO THE OFF POSITION.
TINE OPERATION (See Fig. 5)
• Squeeze tine control to handle.
Fig. 5
TINE CONTROL
“OFF” (UP) POSITION
TINE CONTROL
“ON” (DOWN) POSITION
THROTTLE
CONTROL
ENGINE
SWITCH
FUEL VALVE
RECOIL
STARTER
THROTTLE
CONTROL ENGINE
SWITCH FUEL
VALVE

8
TO TRANSPORT
CAUTION: Beforeliftingortransporting,
allow tiller engine and muffler to cool.
Disconnect spark plug wire. Drain
gasoline from fuel tank.
AROUND THE YARD
• Tip depth stake forward until it is held by the stake
spring.
• Push tiller handles down, raising tines off the ground.
• Push or pull tiller to desired location.
AROUND TOWN
• Disconnect spark plug wire.
• Drain fuel tank.
• Transport in upright position to prevent oil leakage.
OPERATION
ADD GASOLINE
• Fill to within 1/2 inch of top of fuel tank to prevent
spills and to allow for fuel expansion. Do not overfill.
Use fresh, clean, regular unleaded gasoline with a
minimum of 87 octane. (Use of leaded gasoline will
increase carbon and lead oxide deposits and reduce
valve life). Do not mix oil with gasoline. Purchase fuel
in quantities that can be used within 30 days to assure
fuel freshness.
CAUTION: Fill to within 1/2 inch of top
of fuel tank to prevent spills and to
allow for fuel expansion. If gasoline
is accidentally spilled, move machine
away from area of spill. Avoid creating
any source of ignition until gasoline
vapors have disappeared.
Wipe off any spilled oil or fuel. Do not
store, spill or use gasoline near an
open flame.
IMPORTANT: WHENOPERATINGINTEMPERATURESBELOW
32°F(0°C), USE FRESH, CLEAN WINTER GRADE GASOLINE
TO HELP ENSURE GOOD COLD WEATHER STARTING.
CAUTION: Alcohol blended fuels (called
gasohol or using ethanol or methanol) can at-
tract 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. SeeStorage Instructions foradditional
information. Never use engine or carburetor
cleaner products in the fuel tank or permanent
damage may occur.
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 AP-
PROVED, CLEAN, COVERED CONTAINERS. USE CLEAN
FILL FUNNELS.
FILL ENGINE WITH OIL (See Fig. 7)
1. Remove hangtag from engine.
2. With engine level, remove engine oil filler plug.
3. Fill engine with oil to point of overflowing. For approxi-
mate capacity see “PRODUCT SPECIFICATIONS” on
page 3 of this manual. All oil must meet A.P.I. Service
Classification SG-SL.
4. Tilt tiller back on its wheels and then re-level.
5. With engine level, refill to point of overflowing if nec-
essary. Replace oil filler plug.
• For cold weather operation you should change oil for
easier starting (See “OIL VISCOSITY CHART” in the
Maintenance section of this manual).
• To change engine oil, see the Maintenance section of
this manual.
Fig. 7
MAXIMUM UPPER LEVEL
MINIMUM UPPER LEVEL
OIL FILLER PLUG
OIL LEVEL
CAUTION: KEEP TINE CONTROL IN “OFF”
POSITION WHEN STARTING ENGINE.
TO START ENGINE (See Fig. 8)
1. Open the fuel valve.
2. Turn the ENGINE SWITCH to the position “ I ” (ON).
3. Set the speed control lever 1/3 of the way towards the
high speed position.
4. Close the choke lever.
NOTE: If the engine is cold or the ambient temperature is
low, close the choke lever fully.
NOTE: If the engine is warm or the ambient temperature is
high, open the choke lever half-way, or keep it fully open.
5. Pull the starter handle slowly until resistance is felt.
This is the “compression” point. Return the handle to
its original position and pull swiftly. Do not pull out the
rope all the way. After starting the engine, allow the
starter handle to return to its original position while still
holding the handle.

9
BREAKING IN YOUR TILLER
Break-in your belt(s), pulleys and tine control before you
actually begin tilling.
• Start engine, tip tines off ground by pressing handles
down and engage tine control to start tine rotation.
Allow tines to rotate for five minutes.
• Checktineoperation andadjustif necessary. See“TINE
OPERATION CHECK” in the Service and Adjustments
section of this manual.
TILLING HINTS
CAUTION: Until you are accustomed
to handling your tiller, start actual field
use with throttle in slow position.
To help tiller move forward, lift up the handles slightly (thus
lifting depth stake out of ground). To slow down the tiller,
press down on handles.
If you are straining or tiller is shaking, the wheels and depth
stake are not set properly in the soil being tilled. The proper
setting of the wheels and depth stake is through trial and
error and depends upon the soil condition. (The harder or
wetter the ground, the slower the engine and tine speed
needed. Under these poor conditions, 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
packedsoil before planting. Loose,unpackedsoilhelps
root growth. Best tilling depth is 4"-6". A tiller will also
clearthesoilofunwantedvegetation.Thedecomposition
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.
• Soilconditions are important forproper tilling. Tines will
notreadily penetrate dry, hard soilwhichmaycontribute
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 if you 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.
321
5
4
67
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"-3".
• Youwillprobablynotneedtousethedepth 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).
Fig. 10
OPERATION
6. After starting the engine, gradually open choke by
turning the choke lever and finally keep it fully opened.
Do not fully open the choke lever immediately when
the engine is cold or the ambient temperature is low,
because the engine may stop.
NOTE: If engine does not start, see troubleshooting points.
Fig. 8
THROTTLE
CONTROL
ENGINE
SWITCH
CHOKE
CONTROL
FUEL VALVE
RECOIL
STARTER
SPARK
PLUG

10
MAINTENANCE
LUBRICATION CHART
GENERAL RECOMMENDATIONS
The warranty on this tiller does not cover items that have
beensubjectedtooperator abuse or negligence. To receive
fullvaluefromthewarranty, the operator must maintain tiller
as instructed in this manual.
Some adjustments will need to be made periodically to
properly maintain your tiller.
At least once a season, check to see if you should make
any of the adjustments described in the Service and Ad-
justments section of this manual.
• 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
air-fuel 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”).
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cSAE 30 OR 10W-30 MOTOR OIL
dREFER TO MAINTENANCE “ENGINE” SECTION
dENGINE
cTINE CONTROL
cIDLER
ARM

11
Fig. 11
Fig. 12
MAINTENANCE
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 SG-SL. Select the oil’s SAE viscosity grade
according to your expected temperature.
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 50 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.
TO CHANGE ENGINE OIL (See Figs. 11 and 12)
Determine temperature range expected before oil change.
All oil must meet API service classification SG-SL.
• Ensure 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.
4%-0%2!452%ª2!.'%ª!.4)#)0!4%$ª"%&/2%ª.%84ª/),ª#(!.'%
ªªªªªªªªªªªªªªªªªªªªªªªªªªªªªªªªªªªª3!%ª6)3#/3)49ª'2!$%3
• 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.
• Refillenginewith oil. See“CHECKENGINEOIL LEVEL”
in the Operation section of this manual.
Fig. 13
CLEANING AIR CLEANER DUAL ELEMENT
TYPE (See Fig.13)
A dirty air cleaner element will cause starting difficulty,
power loss, engine malfunctions, and shorten engine life
extremely. Always keep the air cleaner element clean.
Urethane Foam cleaning
• Wash and clean the urethane foam with detergent.
• After cleaning, dry it.
• Clean the urethane foam element every 50 hours.
Second element
• Clean by tapping gently to remove dirt and blow off
dust.
• Never use oil.
• Clean the paper element every 50 hours of operation,
and replace element set every 200 hours.
• Clean and replace air cleaner elements more often
when operating in dusty environments.
OIL DRAIN PLUG
OIL FILLER PLUG
OIL LEVEL
FOAM ELEMENT
ELEMENT
WING NUT
COVER

12
MAINTENANCE
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.
Fig. 14
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
ifnecessary.Ifyourengineisequippedwithasparkarrester
screen assembly, remove every 50 hours for cleaning and
inspection. Replace if damaged.
SPARK PLUG
Replace spark plugs at the beginning of each tilling sea-
son or after every 500 hours of use, whichever comes first.
Spark plug type and gap setting are shown in “PRODUCT
SPECIFICATIONS” on page 3 of this manual.
TRANSMISSION
Your transmission is sealed and will not require lubrication
unless serviced.
CLEANING
Do not clean your tiller when the engine and transmission
are hot. We do not recommend using pressurized water
(garden hose, etc.) to clean your unit unless the gasket
area around the transmission and the engine muffler, air
filter and carburetor are covered to keep water out. Water
in engine will shorten the useful life of your tiller.
• 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.
BLOWER
HOUSING
AIR SCREEN
CYLINDER
FINS
MUFFLER

13
TILLER
TO ADJUST HANDLE HEIGHT (See Fig. 15)
Factoryassemblyhasprovided lowesthandleheight. Select
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.
HANDLE
PANEL
ENGINE BRACKETS
NUTS (ALSO 2
ON LEFT SIDE
OF TILLER)
Fig. 15
SERVICE AND ADJUSTMENTS
CAUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come into
contact with plug.
Fig. 16
Fig. 17
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-
dling tines.
tine_4
OUTER
TINE
INNER TINE
HAIRPIN CLIP
A
B
A
B
CLEVIS PIN
MID-WIDTH TILLING - 22" PATH (See Fig. 17)
• Assemble holes “A” in tine hubs to holes “C” in tine
shaft.
tine_5
A
C
AC
NORMAL TILLING - 24" PATH (See Fig. 16)
• Assemble holes “A” in tine hubs to holes “B” in tine
shaft.
Fig. 18
NARROW TILLING/CULTIVATING - 12" PATH
(See Fig. 18)
• Remove outer tines.
tine_6
INNER TINES ONLY
NOTE: When reassembling outer tines, ensure right tine
assembly (marked “R”) and left tine assembly (marked “L”)
are mounted to correct side of tine shaft.

14
SERVICE AND ADJUSTMENTS
Fig. 19
TINE OPERATION CHECK (See Fig.19)
WARNING: Disconnectsparkplugwire
fromsparkplugtopreventstartingwhile
checking tine operation.
For proper tine operation, tine control lever must be against
controlbodyandall slack removed from inner wire of control
cable when control is in the “OFF” (up) position.
Iflever and cable are loose,loosen cable clip atlower 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
raise tines off the ground.
• Slowly pull recoil starter handle while observing tines.
Tines should not rotate.
• If tines rotate, inner wire of control cable is too tight
which is extending lower spring and engaging tines.
Loosencable clip andpush down on cable only enough
to relieve spring tension. Tighten cable clip.
• Recheck in “OFF” position and adjust if necessary.
FINAL CHECK “ON” POSITION
• Withtinecontrol “ON” (held down to handle) push down
on handle to raise tines off the ground.
• Slowly pull recoil starter handle while observing tines.
Tines should rotate forward.
• If tines do not rotate, inner wire of control cable is too
loose. Loosen cable clip and pull cable up to remove
slack and retighten clip.
• Recheck in “ON” position and adjust if necessary.
NOTE: If“ON”position check required adjustment, recheck
“OFF” position adjustment ensure tines do not rotate when
control is “OFF” (up).
TINE CONTROL
“ON” POSITION
TINE CONTROL
“OFF” POSITION
BODY
CABLE CLIP
TINE
CONTROL
CABLE
TO REMOVE BELT GUARD (See Fig. 20)
• Remove screws from side of belt guard.
• Pull belt guard out and away from unit.
• Replace belt guard by reversing above procedure.
Ensure slot in bottom of belt guard is under head of
tine shield bolt and all nuts are tightened securely.
Fig. 20
SCREW
BELT GUARD
SCREW
SCREW
TO REPLACE V-BELT (See Fig. 21)
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 “TO RE-
MOVE BELT GUARD” in this section of manual.
BELT REMOVAL
• Remove V-belt from transmission pulley first and then
from engine pulley.
Fig. 21
V-BELT
IDLER
PULLEY
TRANSMISSION PULLEY
BELT
GUIDE
ENGINE PULLEY
BELT
GUIDE

15
SERVICE AND ADJUSTMENTS
ENGINE
TO ADJUST CARBURETOR
Thecarburetorhasbeenpresetat thefactoryandadjustment
should not be necessary. However, engine performance
can be affected by differences in fuel, temperature, altitude
or load. If the carburetor does need adjustment, contact
your nearest authorized service center/department
IMPORTANT: NEVER TAMPER WITH THE ENGINE GOVER-
NOR,WHICHISFACTORYSETFORPROPERENGINESPEED.
OVERSPEEDING THE ENGINE ABOVE THE FACTORY HIGH
SPEED SETTING CAN BE DANGEROUS. IF YOU THINK THE
ENGINE-GOVERNED HIGH SPEED NEEDS ADJUSTING,
CONTACT YOURNEARESTAUTHORIZEDSERVICECENTER/
DEPARTMENT, WHICH HAS THE PROPER EQUIPMENT AND
EXPERIENCE TO MAKE ANY NECESSARY ADJUSTMENTS.
BELT REPLACEMENT
• Install new V-belt to engine pulley first then to transmis-
sion pulley. Ensure belt is positioned on inside groove
of both pulleys, inside all belt guides and rests on idler
pulley.
CHECK TINE OPERATION
• See “TINE OPERATION CHECK” in this section of
manual.
REPLACE BELT GUARD
• Reinstall belt guard.

16
STORAGE
ENGINE OIL
Drainoil(with engine warm) and replace with clean oil. (See
“ENGINE” in the Maintenance section of this manual.)
CYLINDER(S)
• Remove spark plug.
• Pour 1 ounce (29 ml) of oil through spark plug hole into
cylinder.
• Pull starter handle slowly several times to distribute
oil.
• Replace with new spark plug.
OTHER
• Do not store gasoline from one season to another.
• Replace your gasoline can if your can starts to rust.
Rust and/or dirt in your gasoline will cause problems.
• If possible, store your unit indoors and cover it to give
protection from dust and dirt.
• Cover your unit with a suitable protective cover that
does not retain moisture. Do not use plastic. Plastic
cannot breathe which allows condensation to form and
will cause your unit to rust.
IMPORTANT: NEVER COVER TILLER WHILE ENGINE AND
EXHAUST AREAS ARE STILL WARM.
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.
WARNING: Never store the tiller with
gasoline in the tank inside a building
where fumes may reach an open flame
orspark. Allowtheenginetocool before
storing in any enclosure.
TILLER
• Cleanentire tiller (See“CLEANING”inthe Maintenance
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 Maintenance section of this
manual.
• Ensure 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 ISIMPORTANTTO PREVENT GUMDEPOSITS
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
ETHANOLORMETHANOL) CANATTRACTMOISTUREWHICH
LEADSTOSEPARATIONANDFORMATIONOF ACIDSDURING
STORAGE. ACIDIC GAS CAN DAMAGE THE FUEL SYSTEM
OF AN ENGINE WHILE IN STORAGE.
• Empty the fuel tank by starting 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 STABLIZER IS AN ACCEPTABLE ALTERNATIVE
IN MINIMIZING THE FORMATION OF FUEL GUM DEPOSITS
DURING STORAGE. ADD STABILIZER TO GASOLINE IN FUEL
TANK ORSTORAGE CONTAINER. ALWAYSFOLLOWTHE MIX
RATIO FOUND ON STABLIZER CONTAINER. RUN ENGINE AT
LEAST 10 MINUTES AFTER ADDING STABLIZER TO ALLOW
THE STABILIZER TO REACH THE CARBURETOR. DO NOT
EMPTY THE GAS TANK AND CARBURETOR IF USING FUEL
STABILIZER.

17
Will not start 1. Out of fuel. 1. Fill fuel tank.
2. Engine not “CHOKED” properly. 2. See “TO START ENGINE” in the Operation section.
3. Engine flooded. 3. Wait several minutes before attempting to start.
4. Dirty air cleaner. 4. Clean or replace air cleaner cartridge.
5. Water in fuel. 5. Empty fuel tank and carburetor, and refill tank with
fresh gasoline.
6. Clogged fuel tank. 6. Remove fuel tank and clean.
7. Loose spark plug wire. 7. Ensure spark plug wire is seated properly on
plug.
8. Bad spark plug or improper gap. 8. Replace spark plug or adjust gap.
9. Carburetor out of adjustment. 9. Make necessary adjustments.
Hard to start 1. Throttle control not set properly. 1. Place throttle control in “FAST” position.
2. Dirty air cleaner. 2. Clean or replace air cleaner cartridge.
3. Bad spark plug or improper gap. 3. Replace spark plug or adjust gap.
4. Stale or dirty fuel. 4. Empty fuel tank and refill with fresh gasoline.
5. Loose spark plug wire. 5. Ensure spark plug wire is seated properly on
plug.
6. Carburetor out of adjustment. 6. Make necessary adjustments.
Loss of power 1. Engine is overloaded. 1. Set depth stake and wheels for shallower tilling.
2. Dirty air cleaner. 2. Clean or replace air cleaner cartridge.
3. Low oil level/dirty oil. 3. Check oil level/change oil.
4. Faulty spark plug. 4. Clean and regap or change spark plug.
5. Oil in fuel. 5. Empty and clean fuel tank and refill, and clean
carburetor.
6. Stale or dirty fuel. 6. Empty fuel tank and refill with fresh gasoline.
7. Water in fuel. 7. Empty fuel tank and carburetor, and refill tank with
fresh gasoline.
8. Clogged fuel tank. 8. Remove fuel tank and clean.
9. Spark plug wire loose. 9. Connect and tighten spark plug wire.
10. Dirty engine air screen. 10. Clean engine air screen.
11. Dirty/clogged muffler. 11. Clean/replace muffler.
12. Carburetor out of adjustment. 12. Make necessary adjustments.
13. Poor compression. 13. Contact an authorized service center/department.
Engine overheats 1. Low oil level/dirty oil. 1. Check oil level/change oil.
2. Dirty engine air screen. 2. Clean engine air screen.
3. Dirty engine. 3. Clean cylinder fins, air screen, muffler area.
4. Partially plugged muffler. 4. Remove and clean muffler.
5. Improper carburetor adjustment. 5. Adjust carburetor to richer position.
Excessive bounce/ 1. Ground too dry and hard. 1. Moisten ground or wait for more favorable soil
difficult handling conditions.
2. Wheels and depth stake incorrectly adjusted. 2. Adjust wheels and depth stake.
Soil balls up or clumps 1. Ground too wet. 1. Wait for more favorable soil conditions.
Engine runs but tiller 1. Tine control is not engaged. 1. Engage tine control.
won’t move 2. V-belt not correctly adjusted. 2. Inspect/adjust V-belt.
3. V-belt is off pulley(s). 3. Inspect V-belt.
Engine runs but labors 1. Tilling too deep. 1. Set depth stake for shallower tilling.
when tilling 2. Throttle control not properly adjusted. 2. Check throttle control setting.
3. Carburetor out of adjustment. 3. Make necessary adjustments.
PROBLEM CAUSE CORRECTION
TROUBLESHOOTING POINTS

18
7
11
10
1
2
3
3
16
4
5
7
8
12
14
13
FT-handle_assy_9
19
29
20
30
FRONT TINE TILLER – MODEL NUMBER 90203200 (MFG. ID. NO. 96086000103)
HANDLE ASSEMBLY

19
1 137176X479 21546089 Bracket, Handle
2 72140512 21546771 Bolt, Carriage 5/16-18 x 1-1/2
3 165787 21546171 Grip, Handle
4 166376X479 21546175 Handle, L.H.
5 751153 21546908 Nut, Hex, Crownlock 5/16-18
7 19121414 21546281 Washer 3/8 x 7/8 x 14 Ga.
8 74760520 21546806 Bolt, Hex Head 5/16-18 x 1-1/4
10 10040500 21546002 Washer, Lock 5/16
11 73220500 21546775 Nut, Hex 5/16-18
12 98000129 21546840 Nut, Hex, Flanged 5/16-18
13 180847 21546218 Bolt, Carriage, Gr. 5 5/16-18 x 3/4
14 9209RX479 21546838 Panel, Handle
16 166381X479 21547987 Handle, R.H.
19 188562 21546266 Tine Control Lever Assembly (Includes Cable)
20 188555 21546265 Pin, Pivot
29 12000059 21546059 Retaining Ring
30 181580 21547988 Clip
FRONT TINE TILLER – MODEL NUMBER 90203200 (MFG. ID. NO. 96086000103)
HANDLE ASSEMBLY
NOTE: Allcomponent dimensions are giveninU.S.inches.
1 inch = 25.4 mm
ITEM MFG. ARIENS
NO. NO. PART NO. DESCRIPTION

20
FRONT TINE TILLER – MODEL NUMBER 90203200 (MFG. ID. NO. 96086000103)
BELT GUARD AND PULLEY ASSEMBLY
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