Bolens BL410 User Manual
Today,homeowners around the country rely
on Bolens for durable,reliable power
equipment at an affordable price
.
Operator’s
Manual
2-Cycle Garden Cultivator
Model
BL410
Since it began making garden tools in
1850,Bolens has been known for long-
lasting,dependable products.Bolens
eventually carried that hard-working
heritage into the outdoor power
equipment industry,when it designed
and built the first-ever power-driven
garden tractor.
WARNING
2
THANK YOU
Thank you for buying this quality product. This modern
outdoor power tool will provide many hours of useful service.
You will find it to be a great labor-saving device. This
operator’s manual provides you with easy-to-understand
operating instructions. Read the whole manual and follow all
the instructions to keep your new outdoor power tool in top
operating condition.
PRODUCT REFERENCES,ILLUSTRATIONS AND
SPECIFICATIONS
All information, illustrations, and specifications in this manual
are based on the latest product information available at the
time of printing. We reserve the right to make changes at any
time without notice.
Copyright ©2003 MTD SOUTHWEST INC, All Rights Reserved.
SERVICE INFORMATION
Service on this unit both within and after the warranty period
should be performed only by an authorized and approved
service dealer.
For service call 1-800-520-5520 to obtain a list of authorized
service dealers near you.
DO NOT RETURN THE UNIT TO THE RETAILER. PROOF OF
PURCHASE WILL BE REQUIRED FOR WARRANTY SERVICE.
Before beginning, locate the unit’s model plate. It lists the
model and serial numbers of your unit. Refer to the sample plate
below and copy the information for future reference.
INTRODUCTION
Copy the model / parent part
number here:
Copy the serial number here:
Make sure you carefully read and understand this manual before
starting or operating this equipment.
THIS PRODUCT IS COVERED BY ONE OR MORE U.S. PATENTS.
OTHER PATENTS PENDING.
TABLE OF CONTENTS
Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Starting/Stopping Instructions . . . . . . . . . . . . . . . . . . . . . . . . .9
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Maintenance and Repair Instructions . . . . . . . . . . . . . . . . .11
Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Accessories and Replacement Parts . . . . . . . . . . . . . . . . . . .14
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inside Back Cover
THE ENGINE EXHAUST FROM THIS PRODUCT
CONTAINS CHEMICALS KNOWN TO THE STATE
OF CALIFORNIA TO CAUSE CANCER,BIRTH
DEFECTS,OR OTHER REPRODUCTIVE HARM
.
CALIFORNIA PROPOSITION 65 WARNING
MODEL :
S/N :
ITEM :
3
NOTE: For users on U.S. Forest Land and in the states of California, Maine, Oregon, and Washington. All U.S. Forest Land and
the state of California (Public Resources Codes 4442 and 4443), Oregon, and Washington require by law that certain internal combustion engines operated on forest brush and/or grass-covered areas be equipped with a spark arrestor, maintained in effective
working order, or the engine be constructed, equipped, and maintained for the prevention of fire. Check with your state or local
authorities for regulations pertaining to these requirements. Failure to follow these requirements could subject you to liability or a
fine. This unit is factory equipped with a spark arrestor. If it requires replacement, ask your LOCAL SERVICE DEALER to install
the Accessory Part #182747 Spark Arrestor.
Read the Operator’s Manual(s) and follow all warnings and safety instructions.
Failure to do so can result in serious injury to the operator and/or bystanders.
FOR QUESTIONS,CALL 1-800-520-5520
SAFETY ALERT SYMBOL
: Indicates danger, warn-
ing or caution. Attention is required in order to
avoid serious personal injury. May be used in
conjunction with other symbols or pictographs.
• SAFETY SYMBOLS •
• IMPORTANT SAFETY INFORMATION •
READ ALL INSTRUCTIONS
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and their explanations, deserve
your careful attention and understanding. The safety warnings do not by themselves eliminate any danger. The instructions or
warnings they give are not substitutes for proper accident prevention measures.
SYMBOL MEANING
DANGER: Failure to obey a safety warning will
result in serious injury to yourself or to others.
Always follow the safety precautions to reduce
the risk of fire, electric shock and personal injury.
WARNING: Failure to obey a safety warning can
result in injury to yourself and others. Always follow the safety precautions to reduce the risk of
fire, electric shock, and personal injury.
CAUTION: Failure to obey a safety warning may
result in property damage or personal injury to
yourself or to others. Always follow the safety
precautions to reduce the risk of fire, electric
shock, and personal injury.
SYMBOL MEANING
NOTE:
Advises you of information or instructions vital to the operation or maintenance of the equipment.
BEFORE OPERATING
• Read the instructions carefully. Become familiar with the
controls and proper use of the unit.
• Do not operate this unit when tired, ill or under the influence of alcohol, drugs or medication.
• Children under the age of 15 must not use the unit; teens
may operate the unit with adult guidance.
• Inspect the unit before use. Replace damaged parts. Check for
fuel leaks. Make sure all fasteners are in place and secure.
Replace parts that are cracked, chipped or damaged in any
way. Do not operate with loose or damaged parts.
• Be aware of the potential risk of injury to your head, hands
and feet.
WARNING: When using the unit, you must fol-
low the safety rules.Please read these instructions before operating the unit in order to
ensure the safety of the operator and any
bystanders. Please keep these instructions for
later use.
• Clear the area to be cultivated before each use. Remove
rocks, broken glass, nails, wire, string and other objects
which may be thrown by the unit. Clear the area of children,
bystanders and pets; keep them outside a 50-foot (15 m.)
radius, at a minimum. Even then, they are still at risk from
thrown objects. Encourage bystanders to wear eye protection. If you are approached, stop the unit immediately.
• Squeeze the throttle control and make sure that it automatically returns to the idle position. Make all adjustments
or repairs before using the unit.
SAFETY WARNINGS FOR GAS UNITS
• Store fuel only in containers specifically designed and
approved for the storage of such materials.
• Avoid creating a source of ignition for spilled fuel. Do not
start the engine until fuel vapors dissipate.
WARNING: Gasoline is highly flammable and
its vapors can explode if ignited.Follow the
ensuing precautions.
RULES FOR SAFE OPERATION
4
• Always stop the engine and allow it to cool before filling
the fuel tank. Never remove the cap of the fuel tank, or add
fuel, when the engine is hot. Never operate the unit without the fuel cap securely in place. Loosen the fuel tank cap
slowly to relieve any pressure in the tank.
• Add fuel in a clean, well-ventilated outdoor area where
there are no sparks or flames. Slowly remove the fuel cap
only after stopping engine. Do not smoke while fueling.
Wipe up any spilled fuel from the unit immediately.
• Move the unit at least 30 feet (9.1 m) from the fueling
source and site before starting the engine. Do not smoke.
Keep sparks and open flames from the area while adding
fuel or operating the unit.
WHILE OPERATING
• Never start or run the unit inside a closed room or building. Breathing exhaust fumes can be lethal. Operate this
unit only in a well ventilated area outdoors.
• Wear safety glasses or goggles that are marked as meeting
ANSI Z87.1 standards, and ear/hearing protection when
operating this unit. Wear a face or dust mask if the operation is dusty.
• Wear heavy, long pants, boots, gloves and a long sleeve
shirt. Do not wear, short pants, sandals or go barefoot.
• To reduce the risk of injury associated with objects pulled
into rotating parts, do not wear loose clothing, jewelry,
scarves, etc. Secure hair above shoulder level.
• Use the unit only in daylight or good artificial light.
• Keep outside surfaces free from oil and fuel.
• This unit has a clutch. The tines remain stationary when
the engine is idling. If they do not, have the unit adjusted
by an authorized service technician.
• Be sure the tines are not in contact with anything before
starting the unit.
• Avoid accidental starting. Be in the starting position whenever pulling the starter rope. The operator and unit must
be in a stable position while starting. Refer to the Starting/
Stopping Instructions.
• Use the right tool. Only use this tool for the purpose intended
.
• Do not force the unit. It will do the job more effectively,
with a smaller chance of injury, if you use the unit for the
task it was designed.
• Use extreme caution when reversing or pulling the unit
towards you.
• Do not overreach. Take extra care when working on steep
slopes or inclines. Always keep proper footing and balance.
• Always hold the unit with both hands when operating.
Keep a firm grip on the handlebar grips.
• Keep hands, face and feet at a distance from all moving
parts. Do not touch or try to stop the tines when they are
rotating. Do not operate without guards in place.
• Do not touch the engine, muffler or gearbox. These parts
get extremely hot from operation. When turned off they
remain hot for a short time.
• Do not operate the engine faster than the speed needed
to do the job. Do not run the engine at high speed when
not in use.
• Always stop the engine during suspended or delayed
operation, or when you walk from one location to another.
• Stop the engine for maintenance, repair or to install or
remove the tines. To avoid injury, stop the unit and make
sure the tines no longer turn.
• The tines become very sharp from use. Always wear heavy
gloves when handling, removing, installing or cleaning the
tines.
• Use only Genuine Factory Parts™ replacement parts and
accessories for this unit. These are available from your
authorized service dealer. Use of any non original factory
parts or accessories could lead to serious injury to the user,
or damage to the unit, and void your warranty.
• Keep the unit clean of vegetation and other materials. They
may become lodged between the tines and gearbox or guard.
• To reduce the risk of fire, replace a faulty muffler and spark
arrestor. Keep the engine and muffler free from grass,
leaves, excessive grease or carbon build up.
OTHER SAFETY WARNINGS
• Never store the unit, with fuel in the tank, inside a building
where fumes may reach an open flame or spark.
• Allow the engine to cool before storing or transporting. Be
sure to secure the unit while transporting.
• Store the unit in a dry place, either locked up or up high to
prevent unauthorized use or damage. Keep out of the
reach of children.
• Clean the tines with a hose and water. Wipe the tines with
a light machine oil to prevent rust.
• Never douse or squirt the engine with water or any other liquid. Keep handles dry, clean and free from debris. Clean after
each use, as described in the Cleaning and Storage section.
• Keep these instructions. Refer to them often and use them
to instruct other users. If you loan someone this unit, also
loan them these instructions.
SA VE THESE INSTRUCTIONS
• IMPORTANT SAFETY INFORMATION •
RULES FOR SAFE OPERATION
5
SYMBOL MEANING
• SAFETY ALERT SYMBOL
Indicates danger, warning or caution.
May be used in conjunction with other
symbols or pictographs.
•WARNING - READ
OPERATOR'S MANUAL
Read the operator’s manual(s) and follow
all warnings and safety instructions.
Failure to do so can result in serious
injury to the operator and/or bystanders.
•WEAR EYE AND HEARING
PROTECTION
WARNING: Thrown objects and loud
noise can cause severe eye injury and
hearing loss. Wear eye protection
meeting ANSI Z87.1 standards and ear
protection when operating this unit. Use
a full face shield when needed.
• KEEP BYSTANDERS AWAY
WARNING: Keep all bystanders,
especially children and pets, at least 50
feet (15 m) from the operating area.
• UNLEADED FUEL
Always use clean, fresh unleaded fuel.
•OIL
Refer to operator's manual for the proper
type of oil.
• THROWN OBJECTS AND ROTATING
CUTTER CAN CAUSE SEVERE
INJURY
WARNING: Do not operate without the
proper attachments and guards in place.
Keep away from the rotating tines.
SYMBOL MEANING
• ON/OFF STOP CONTROL
ON / START / RUN
• ON/OFF STOP CONTROL
OFF or STOP
•HOT SURFACE WARNING
Do not touch a hot muffler, gear housing
or cylinder. You may get burned. These
parts get extremely hot from operation.
They remain hot for a short time after the
unit is turned off.
• CHOKE CONTROL
1 • FULL choke position.
2 • PARTIAL choke position.
3 • RUN position.
• GARDEN CULTIVATORS – ROTATING
TINES CAN CAUSE SEVERE INJURY
WARNING: Stop the engine and allow
the tines to stop before installing or
removing tines, or before cleaning or
performing any maintenance. Keep
hands and feet away from rotating tines.
• NO STEP
Always keep proper footing and balance.
Do not overreach, take extra care when
working on steep slopes or inclines.
•PLACE LEFT FOOT HERE
Avoid accidental starting. Stand in the
starting position whenever pulling the
starter rope. The operator and unit must
be in a stable position while starting.
12
3
SAFETY AND INTERNATIONAL SYMBOLS
This operator's manual describes safety and international symbols and pictographs that may appear on this product.
Read the operator's manual for complete safety, assembly, operating and maintenance and repair information.
RULES FOR SAFE OPERATION
6
Tine Guard
Tines
Gearbox
Primer Bulb
Choke Control
Air Filter/
Muffler Cover
Spark
Plug
Muffler
Fuel Cap
Throttle
Control
Starter Rope Grip
Handlebar
Wheel Bracket
Assembly
Shaft Tube Grip
Handgrip
Handgrip
On/Off Stop
Control
STOP/OFF (O)
START/ON (I)
Throttle
Cable and
Switch Wires
Handlebar
Knob
Handlebar
Knob
KNOW YOUR UNIT
Application:
•Cultivating sod and light to medium soil
•Cultivating in garden areas,around trees,etc.
RULES FOR SAFE OPERATION
7
ASSEMBLING THE UNIT
Before operating, position the unit’s handlebars.
NOTE: You may also need to reposition the wheel
height before using the cultivator. Refer to the
Adjusting Tine Depthsection.
Begin by carefully unpacking the contents and making sure
that nothing is damaged.
POSITIONING THE HANDLEBARS
1. Loosen the two knobs on the inside of the handlebars
(Fig. 1).
2. With the unit upright, swing the handlebars up into the
operating position (Fig. 1).
NOTE: Take care not to pinch the throttle cable or
switch wires when positioning the handlebar.
3. Tighten the knobs to secure the handlebars in place.
NOTE: Do not over-tighten the knobs.
4. Readjust the throttle cable and switch the wires so they
are smooth and tight against the handlebar assembly.
This will help prevent them from catching or snagging
during normal operation.
ADJUSTING THE HANDLEBAR HEIGHT
1. Remove the knobs and mounting bolts and reinstall
them through either the top or bottom holes in the
handlebar assembly (Fig. 2) in order to adjust the height
of the handlebars.
2. Be sure to tighten the knobs to secure the handlebars in
place.
Handlebar
Knobs
Handlebar
Knobs
Handlebar
Knob
Handlebars
Washer
Bottom Hole
Top Hole
Bolt
INSTALLING THE WHEEL BRACKET ASSEMBLY
If the wheel bracket assembly is not installed,or if you
ever need to remove or reinstall it,follow the ensuing
instructions.
1. With the unit on its side, place the wheel bracket
assembly on the underside of the tine guard (Fig. 3).
2. Install a carriage bolt through each of the slotted holes in
the wheel bracket and into the tine guard.
3. On the TOP side of the tine guard, install a lock washer
and a wing nut onto each of the bolts (Fig. 3).
4. Make sure the square shoulder of the bolts is pushed
through the slotted holes in the wheel bracket. Tighten
the wing nuts (Fig. 4).
NOTE: Do not over-tighten the wing nuts. Loosen the
wing nuts to adjust wheel height.
Wing Nut &
Lock Washer
Tine
Guard
Wheel
Bracket
Assembly
WARNING: To prevent serious personal injury,
the wheel bracket assembly must be installed
when operating the unit.
WARNING: To avoid injury from the tines, wear
heavy gloves and a long sleeve shirt when
installing the wheel bracket assembly.
Fig.1
Fig.4
Fig.3
Fig.2
ASSEMBLY INSTRUCTIONS
8
NOTE: Dispose of the old fuel/oil mix in accordance to
Federal, state, and local regulations.
OIL AND FUEL MIXING INSTRUCTIONS
Old and/or improperly mixed fuel are the main reasons for
the unit not running properly. Be sure to use fresh, clean
unleaded fuel. Follow the instructions carefully for the proper
fuel/oil mixture.
Definition of Blended Fuels
Today's fuels are often a blend of gasoline and oxygenates
such as ethanol, methanol, or MTBE (ether). Alcohol-blended
fuel absorbs water. As little as 1% water in the fuel can make
fuel and oil separate. It forms acids when stored. When using
alcohol-blended fuel, use fresh fuel (less than 60 days old).
Using Blended Fuels
If you choose to use a blended fuel, or its use is unavoidable,
follow recommended precautions:
• Always use fresh fuel mix per your operator's manual
• Always agitate the fuel mix before fueling the unit
• Drain the tank and run the engine dry before storing the
unit
Using Fuel Additives
The bottle of 2-cycle oil that came with your unit contains a
fuel additive which will help inhibit corrosion and minimize
the formation of gum deposits. It is recommended that you
use our 2-cycle oil with this unit.
If unavailable, use a good 2-cycle oil designed for air-cooled
engines along with a fuel additive, such as STA-BIL® Gas
Stabilizer or an equivalent. Add 0.8 oz. (23 ml.) of fuel
additive per gallon of fuel according to the instructions on
the container. NEVER add fuel additives directly to the unit's
fuel tank.
Thoroughly mix the proper ratio of 2-cycle engine oil with
unleaded gasoline in a separate fuel can. Use a 40:1 fuel/oil ratio.
Do not mix them directly in the engine fuel tank. See the
following table for specific gas and oil mixing ratios.
NOTE: One gallon (3.8 liters) of unleaded gasoline
mixed with one 3.2 fl.oz. (95 ml.) bottle of
2-Cycle Oil makes a 40:1 fuel/oil ratio.
CAUTION: For proper engine operation and
maximum reliability, pay strict attention to the
oil and fuel mixing instructions on the 2-cycle oil
container. Using improperly mixed fuel can
severely damage the engine.
WARNING Add fuel in a clean, well ventilated
area outdoors. Wipe up any spilled fuel immediately. Avoid creating a source of ignition for
spilled fuel. Do not start the engine until fuel
vapors dissipate
WARNING: Remove fuel cap slowly to avoid
injury from fuel spray. Never operate the unit
without the fuel cap securely in place.
WARNING: Gasoline is extremely flammable.
Ignited vapors may explode. Always stop the
engine and allow it to cool before filling the fuel
tank. Do not smoke while filling the tank. Keep
sparks and open flames at a distance from the area.
UNLEADED GAS 2 CYCLE OIL
1 US. GALLON
(3.8 LITERS)
3.2 FL OZs.
(95 ml)
1 LITER 25 ml
+
MIXING RATIO = 40 : 1
FILLING THE FUEL TANK
Make sure the cultivator is in a horizontal position when
filling or adding fuel to the tank.
Fig.5
OIL & FUEL INFORMATION
9
Starter
Rope
Throttle
Control
STARTING INSTRUCTIONS
1. Mix gas with oil. Fill fuel tank with fuel/oil mixture. Refer
to Oil and Fuel Mixing Instructions.
2. Make sure the On/Off Stop Control in the ON [I] position
(Fig. 6).
3. Place the choke lever in Position 1 (Fig. 7).
4. Fully press and release the primer bulb 10 times, slowly.
Some amount of fuel should be visible in the primer
bulb and fuel lines (Fig. 7). If you can’t see fuel in the
bulb, press and release the bulb as many times as it
takes before you can see fuel in it.
5. Stand between the handlebars and support the unit by
placing your left foot on the wheel bracket assembly and
gripping the handlebar grip with your right hand (Fig. 8).
NOTE: Tilt the unit back slightly to bring the tines off the
ground when starting.
6. While squeezing the throttle control to the wide open
(full throttle) position, grasp the starter rope grip with
your left hand. Pull the starter rope out a short distance,
until you feel some resistance. This is usually around 2-4
inches. Then pull the rope smoothly and briskly. Repeat
this 5 times.
7. Move the choke lever to Position 2.
8. While squeezing the throttle control, pull the starter
rope in the same manner as explained in Step 6. Pull 1 to
3 times to start the engine.
9. Keep the throttle squeezed and allow the engine to
warm up for 15 to 30 seconds.
10. Place the choke lever in Position 3. Release the throttle
control to the idle position and begin operation.
IF... The engine does not start, go back to step 3.
IF... The engine fails to start after a few attempts, place the
choke lever in Position 3 and squeeze the throttle
control. Pull the starter rope briskly 3 to 8 times. The
engine should start. If not, repeat.
IF
WARM...
If the engine is already warm, make sure the
On/Off Stop control is in the ON position and start the
unit with the choke lever in Position 2. After the unit
starts, move the choke lever to Position 3.
STOPPING INSTRUCTIONS
1. Release your hand from the throttle control (Fig. 8).
Allow the engine to cool down by idling.
2. Put the On/Off Stop Control in the STOP (O) position
(Fig. 6).
Start / Stop Control
START (I)
STOP (O)
Throttle Control
WARNING: Operate this unit only in a well- ven-
tilated outdoor area. Carbon monoxide exhaust
fumes can be lethal in a confined area
.
WARNING: Avoid accidental starting. Make sure
you are in the starting position when pulling the
starter rope (Fig. 8).
To avoid serious injury, the
operator and unit must be in a stable position
while starting.
Fig.8
Fig.7
Fig.6
STARTING/STOPPING INSTRUCTIONS
Choke Lever
Position 1
Primer Bulb
Position 3
Position 2
10
TRANSPORTING THE UNIT
1. Stop the engine.
2. Slide the wheel bracket assembly all the way down.
3. Tilt the unit back until the tines clear the ground.
4. Push or pull the unit to the next location.
OPERA TING TIPS
1. Move the cultivator to the work area prior to starting the
engine. Transport the cultivator by pushing it on its wheels.
2. Start the unit as described in the Starting Instructions.
3. With the engine running and the tines off the ground,
depress the throttle control to increase the engine speed.
4. Holding both of the handlebar grips firmly, slowly lower
the cultivator until the tines make contact with the
ground (Fig. 9).
5. As cultivating action begins, pull back on the cultivator
so that the tines can penetrate the ground.
6. Once the ground has been broken, continue at a
moderate pace until you are familiar with the controls
and the handling of the cultivator.
7. Pull the cultivator backwards to improve the depth of
cultivation and reduce your effort.
8. If the tines are digging too deep or not deep enough,
adjust them according to Adjusting Tine Depth.
ADJUSTING TINE DEPTH
Tine adjustment will vary depending on the type of soil being
cultivated and how it will be used. Generally, adjusting the tines
to break the soil 4 to 6 inches is recommended for most
gardens. Adjust the tines as follows:
1. Stop the engine and disconnect the spark plug wire.
2. Loosen (do not remove) the two wing nuts on the tine
guard (Fig. 10).
3. Slide the wheel bracket assembly down for shallower
penetration, and up for deeper tine penetration.
4. Once the tines are in the desired position, tighten the
wing nuts, making sure that the carriage bolts are seated
properly through the bracket.
5. If the tine depth is incorrect, repeat steps 2 to 4.
6. Reconnect the spark plug wire and continue use.
Down
Up
WARNING: Always wear eye, hearing, foot and
body protection to reduce the risk of injury
when operating this unit.
WARNING: To prevent serious personal injury,
use extreme caution when reversing or pulling
the unit towards you.
WARNING: To prevent serious personal injury,
never pick-up or carry the unit while the engine
is running.
WARNING: To prevent serious personal injury,
always stop the engine when operation is
delayed or when transporting the unit from one
location to another.
Fig.10
Fig.9
OPERATING INSTRUCTIONS
11
Clevis Pin Clip
Felt
Cushion
Shaft
Felt
Washer
Tine Hubs
Stagger Tips
R
R
L
L
Clevis Pin
TINE REMOVAL AND REPLACEMENT
Replace all four (4) tines at the same time, because they will
wear evenly through normal use. Work on one side at a time.
1. Put the On/Off Stop Control in the STOP (O) position
and disconnect the spark plug wire.
2. Remove the clevis pin clips and clevis pins (Fig. 11).
3. Remove the tines and felt washers from the shaft.
4. Clean and oil the shaft.
5. The tines are stamped with the letter "R" or "L" to
identified their position on each side of the gearbox
when facing the front of the unit.
6. Replace the tines and felt washers onto the shaft with
the hubs on the tines facing each other.
MAINTENANCE SCHEDULE
Perform these required maintenance procedures at the
frequency stated in the table. These procedures should also
be a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require
special tools or skills. If you are unsure about
these procedures take your unit to any nonroad engine repair establishment, individual or
authorized service dealer.
NOTE:
Maintenance, replacement, or repair of the emission control devices and system may be performed
by any non-road engine repair establishment, individual or authorized service dealer.
In order to assure peak performance of your engine, inspection of the engine exhaust port may be necessary after 50
hours of operation. If you notice lost RPM, poor performance
or general lack of acceleration, this service may be required. If
you feel your engine is in need of this inspection, refer service
to any non-road engine repair establishment, individual or
authorized service dealer for repair. DO NOT attempt to perform this process yourself as engine damage may result from
contaminants involved in the cleaning process for the port.
FREQUENCY MAINTENANCE REQUIRED REFER TO
Before starting engine Fill fuel tank with fresh fuel mix Page 8
Every 10 hours Clean and re-oil air filter Page 12
Every 25 hours
Check and clean spark arrestor
Check spark plug condition and gap
Page 12
Page 13
Every 50 hours
Inspect exhaust port and spark arrestor screen for clogging or
obstruction to assure maximum performance levels
Page 12
WARNING: To prevent serious injury, never perform maintenance or repairs with unit running.
Always service and repair a cool unit. Disconnect
the spark plug wire to ensure that the unit cannot start.
7. Before you reinstall the clevis pins and pin clips, ensure
that the tips on the tines are staggered when compared
to each other (Fig. 12).
8. Repeat this procedure on the opposite side.
NOTE: When installed correctly, there will be an "R" and "L"
tine on both the sides of the gearbox and the tips of
the tines. These letters will line up in the same
direction for each side. It is important that the tines
are installed correctly.
WARNING:
To prevent serious personal injury,
always wear heavy gloves when
handling the
tines.
Fig.12
Fig.11
MAINTENANCE & REPAIR INSTRUCTIONS
12
Cleaning the Air Filter
Clean and re-oil the air filter every 10 hours of operation. It is
an important item to maintain. Failure to maintain the air
filter will VOID the warranty.
1. Remove the air filter/muffler cover. Refer to the
Removing the Air filter/Muffler Coversection.
2. Remove the air filter from inside the air filter/muffler
cover (Fig. 14).
3. Wash the filter in detergent and water (Fig. 14). Rinse the
filter thoroughly. Squeeze out excess water. Allow it to
dry completely.
4. Apply enough SAE 30 oil to lightly coat the filter (Fig. 15).
5. Squeeze the filter to spread and remove extra oil (Fig. 15).
6. Replace the air filter inside the muffler cover (Fig. 14).
NOTE:
Operating the unit without the air filter and cover
assembly will VOIDthe warranty
.
Reinstalling the Air filter/Muffler Cover
1. Place the air filter/muffler cover over the back of the
carburetor and muffler.
NOTE:
The choke control must be in
Position 2 (Fig. 13)
to remove the air filter/ muffler cover.
Choke Control
Screws
Screws
Position 2
2. Insert the four (4) screws into the holes in the air filter/
muffler cover (Fig. 13) and tighten. Use a flat blade or # T20
Torx bit screwdriver. Do not over tighten. Do not force.
Air Filter
Inside Muffler
Cover
AIR FILTER MAINTENANCE
Removing the Air Filter/Muffler Cover
1. Place the choke control in
Position 2
.
NOTE:
The choke control must be in
Position 2 (Fig. 13)
to remove the air filter/ muffler cover.
2. Remove the four (4) screws securing the air filter/muffler
cover (Fig. 13). Use a flat blade or # T20 Torx bit
screwdriver.
3. Pull the cover from the engine. Do not force.
WARNING: To avoid serious personal injury,
always turn your unit off and allow it to cool
before you clean or service it.
SPARK ARRESTOR MAINTENANCE
1. Remove the air filter/muffler cover. Refer to Removing the
Air Filter/Muffler Cover.
2. Locate the muffler front and the two (2) bolts securing it
to the engine (Fig. 16). Remove the two (2) bolts using a
flatblade screwdriver or 5/16-inch socket or nut driver.
Pull the muffler off of the engine.
3. Turn the muffler over to the back side and locate the
exhaust gasket. Remove the muffler gasket from the
muffler (Fig. 16).
NOTE:
If the exhaust gasket is torn or damaged, replace it with
a new gasket before you
reassemble the muffler.
4. Using a small flatblade screwdriver, carefully pry up the
spark arrestor from the recessed hole (Fig. 17). Remove
the spark arrestor from the muffler.
5. Clean the spark arrestor with a wire brush. Replace it if it is
damaged or if it can’t be cleaned thoroughly (Fig. 17).
6. Reinstall the spark arrestor by pressing it into the
recessed hole on the muffler's back side. Make sure it fits
tightly against the muffler and is not raised up.
7. Place the exhaust gasket against muffler's back side.
Align the gasket bolt holes with the bolt holes in the
muffler. While holding exhaust gasket in place, insert the
bolts into the muffler's front side (Fig. 16).
Fig.15
Fig.14
Fig.13
MAINTENANCE & REPAIR INSTRUCTIONS
13
REPLACING THE SPARK PLUG
Use a Champion RDJ7Y spark plug (or equivalent). The
correct air gap is 0.020 in. (0.5 mm). Remove the plug after
every 25 hours of operation to check its condition.
1. Stop the engine and allow it to cool. Grasp the plug wire
firmly and pull the cap from the spark plug.
2. Clean dirt from around the spark plug. Remove the spark
plug from the cylinder head by turning a 5/8 in. socket
counterclockwise.
NOTE: Replace a cracked, fouled or dirty spark plug.
3. Set the air gap at 0.020 in. (0.5 mm) using a feeler gauge
(Fig. 19).
Adjust Idle Speed Adjuster
If after checking the fuel mixture and cleaning the air filter
the engine still will not idle, adjust the idle speed screw as
follows:
1. Start the engine and let it run for about 2-3 minutes at a
high speed (full throttle) to warm up. Refer to the
Starting/Stopping Instructions.
NOTE: Ensure the tines are not in contact with the
ground when adjusting the idle.
2. Release the throttle control and let the engine idle. If the
engine stops, insert a small phillips or flat blade
screwdriver into the hole in the muffler cover (Fig. 18).
Turn the idle speed screw clockwise 1/8 of a turn at a
time (as needed) until the engine idles smoothly.
NOTE:
The tines should not rotate during engine idle.
3. If the tines rotate when the engine idles, turn the idle
speed screw counterclockwise 1/8 of a turn at a time
(as needed), to reduce idle speed.
Checking the fuel mixture, cleaning the air filter, and
adjusting the idle speed screw should solve most engine
problems. If not and all the following are true:
• The engine will not idle
• The engine hesitates or stalls on acceleration
• There is a loss of engine power
Have the carburetor adjusted by an authorized service dealer.
Idle Speed Adjuster
Muffler - Front Side
Muffler - Back Side
Bolts
Exhaust Gasket
Spark
Arrestor
Muffler - Back Side
Spark Arrestor
Flatblade
Screwdriver
Spark Arrestor
WARNING:
If the muffler is not tightened
securely
,
it could fall off causing damage to the unit and
possible serious personal injury.
CAUTION: Do not sand blast, scrape or clean
electrodes. Grit in the engine could damage the
cylinder.
WARNING: The unit may still run during idle
speed adjustments. Wear protective clothing
and observe all safety instructions to prevent
serious personal injury.
CARBURETOR ADJUSTMENTS
The engine’s idle speed adjuster is adjustable through the air
filter/muffler cover (Fig 18).
NOTE:
Careless adjustment
s can seriously damage your
unit. An authorized service dealer should make
carburetor adjustments.
Check Fuel Mixture
Old and/or improperly mixed fuel is usually the reason for
the unit not running properly. Drain and refill the tank with
fresh, properly mixed fuel prior to making any adjustments.
Refer to Oil and Fuel Information.
Clean Air Filter
The condition of the air filter is important to the operation of
the unit. A dirty air filter will restrict air flow and change the
air/fuel mixture. This is often mistaken for an out of
adjustment carburetor. Check the condition of the air filter
before adjusting the idle speed adjuster. Refer to Air Filter
Maintenance.
8. Place the muffler (with the exhaust gasket in place and bolts
inserted), against the engine, aligning the bolt holes.
Tighten the bolts to secure the muffler to the engine.
If
using a torque wrench, torque to:
80-90 in.•lb. (9-10.2 N•m)
9. Reinstall the air filter/muffler cover.
Fig.16
Fig.18
Fig.17
MAINTENANCE & REPAIR INSTRUCTIONS
14
Handlebar Knobs
Shaft Tube
Grip
TRANSPORTING
• Allow the engine to cool before transporting.
• Secure the unit while transporting.
• Drain the fuel tank before transporting.
• Tighten fuel cap before transporting.
MOVING THE UNIT
1. Allow the unit to cool before moving.
2. Loosen the knobs on the handlebar.
3. Fold the handlebars down as shown (Fig. 20).
ACCESSORIES/REPLACEMENT PARTS
2-Cycle Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147543
Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 610311
Fuel Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180000
Tine (L) (Left Side Outer or Right Side Inner) . . . . . . . . .182729
Tine (R) (Right Side Outer or Left Side Inner) . . . . . . . . .182730
Clevis Pin with Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147473
4. Either carry the unit by the shaft tube grip or grasp the
center of the handlebar to use it as a carrying handle
(Fig. 21).
5. After the unit has been moved, reposition the
handlebars and continue operation.
CLEANING THE UNIT
• Use a small brush to clean off the outside of the unit and
to keep the air vents free of obstructions.
• Do not use strong detergents or petroleum based
cleaners, like kerosene. Some household cleaners
contain aromatic oils such as pine and lemon that can
damage the plastic housings or handles. Wipe off any
moisture with a soft cloth.
STORAGE
• Never store a fueled unit where fumes may reach an
open flame or spark.
• Allow the engine to cool before storing.
• Store the unit in a locked up area to prevent
unauthorized use or damage.
• Store the unit in a dry, well-ventilated area.
• Store the unit out of the reach of children.
LONG TERM STORAGE
If you plan to store the unit for an extended time:
1. Drain all fuel from the fuel tank into a container. Do not
use fuel that has been stored for more than 60 days.
Dispose of the old fuel in accordance to local regulations.
2. Start the engine and allow it to run until it stalls. This
ensures that all fuel has been drained from the carburetor.
3. Allow the engine to cool. Remove the spark plug and put
1 oz. (30 ml) of high quality motor oil into the cylinder.
Pull the starter rope slowly to distribute the oil. Reinstall
the spark plug.
NOTE: Remove the spark plug and drain all of the oil
from the cylinder before attempting to start the
unit after storage.
4. Thoroughly clean the unit and inspect for any loose or
damaged parts. Repair or replace damaged parts and
tighten loose screws, nuts or bolts. The unit is ready for
storage.
WARNING: To avoid serious personal injury,
always turn the off and allow it to cool before
you clean or service it.
4. Install a correctly gapped spark plug in the cylinder head.
Tighten by turning the 5/8 in. socket clockwise until snug.
If using a torque wrench torque to:
110-120 in.•lb. (12.3-13.5 N•m)
Do not over tighten.
0.020 in.
(0.5 mm)
Fig.21
Fig.20
Fig.19
MAINTENANCE & REPAIR INSTRUCTIONS
15
CAUSE ACTION
On/Off Stop Control in the STOP position Turn the On/Off Stop Control to START
Empty fuel tank Fill fuel tank
Primer bulb wasn't pressed enough Press primer bulb fully and slowly 10 times
Engine flooded Use starting procedure with choke control in Position 2
Old or improperly mixed fuel Drain fuel tank / Add fresh fuel mixture
Fouled spark plug Replace or clean the spark plug
Plugged spark arrestor Clean or replace spark arrestor
ENGINE WILL NOT START
CAUSE ACTION
Air Filter is Plugged Replace or clean the air filter
Old or improperly mixed fuel Drain fuel tank / Add fresh fuel mixture
Improper carburetor adjustment Adjust according to the Carburetor Adjustments section
ENGINE WILL NOT IDLE
CAUSE ACTION
Old or improperly mixed fuel Drain fuel tank / Add fresh fuel mixture
Improper carburetor adjustment Take to an authorized service dealer for a carburetor adjustment
Cultivator tines bound with dirt or grass Stop the unit, switch the On/Off Stop Control to STOP,
clean and remove any debris binding the tine
Dirty air filter Clean or replace the air filter
Plugged spark arrestor Clean or replace spark arrestor
ENGINE WILL NOT ACCELERATE
CAUSE ACTION
Old or improperly mixed fuel Drain fuel tank / Add fresh fuel mixture
Improper carburetor adjustment Take to an authorized service dealer for a carburetor adjustment
Fouled spark plug Replace or clean the spark plug
Plugged spark arrestor Clean or replace spark arrestor
ENGINE LACKS POWER OR STALLS WHEN UNDER LOAD
TROUBLESHOOTING
16
ENGINE
Engine Type...................................................................................................................................................................................... Air-Cooled,2-Cycle
Displacement............................................................................................................................................................................................................. 31 cc
Idle Speed RPM.................................................................................................................................................................................. 2,800 - 3,600 rpm
Operating RPM.............................................................................................................................................................................................. 7,700+ rpm
Clutch Type...................................................................................................................................................................................................... Centrifugal
Ignition Type......................................................................................................................................................................................................Electronic
On/Off Stop Control............................................................................................................................................................................... Rocker Switch
Spark Plug Gap............................................................................................................................................................................. 0.020 inch (0.5 mm)
Lubrication............................................................................................................................................................................................. Fuel/Oil Mixture
Fuel/Oil Ratio............................................................................................................................................................................................................... 40:1
Carburetor............................................................................................................................................................................... Diaphragm,All-Position
Starter............................................................................................................................................................................................................ Auto Rewind
Muffler................................................................................................................................................................................................ Baffled with Guard
Throttle........................................................................................................................................................................................................ Spring Return
Fuel T ank Capacity......................................................................................................................................................................... 14 ounces (415 ml)
DRIVE SHAFT AND CULTIVATOR
Drive Shaft Tube.............................................................................................................................................................................................. Steel Tube
Throttle Control................................................................................................................................................................................ F inger-Tip T rigger
Cultivating Path Width (Maximum)....................................................................................................................................... 9 inches (22.86 cm)
Cultivating Depth (Maximum)................................................................................................................................................. 6 inches (15.24 cm)
Approximate Unit Weight (no fuel) .................................................................................................................................................... 26 lb.(12 kg)
SPECIFICATIONS
EPA Emission Control Warranty Statement
Your Warranty Rights and Obligations
The Environmental Protection Agency and Troy-Bilt LLC are pleased to explain the emission control system warranty on your
2002 and later small off-road engine. New small off-road engines must be designed, built and equipped to meet stringent antismog standards. Bolens must warrant the emission control system on your small off-road engine for the periods of time listed
below provided there has been no abuse, neglect or improper maintenance of your small off-road engine.
Your emission control system may include parts such as the carburetor or fuel-injected system, the ignition system, and catalytic
converter. Also included may be hoses, belts, connectors and other emission-related assemblies.
Where a warrantable condition exists, Bolens will repair your small off-road engine at no cost to you including diagnosis, parts
and labor.
The 2002 and later small off-road engines are warranted for two years. If any emission-related part on your engine is defective,
the part will be repaired or replaced my Bolens.
Owners Warranty Responsibilities
• As the small off-road engine owner, you are responsible for the performance of the required maintenance listed in your
operator’s manual. Bolens recommends that you retain all receipts covering maintenance on your small off-road engine, but
Bolens cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled
maintenance.
• As the small off-road engine owner, you however should be aware that Bolens may deny you warranty coverage if your small
off-road engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications.
• You are responsible for presenting your small off-road engine to a Bolens Authorized Service Center as soon as a problem exists.
The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days.
If you have any questions regarding your warranty rights and responsibilities, you should call 1-800-520-5520.
Manufacturer’ s W arranty Cov erage
• The warranty period begins on the date the engine or equipment is delivered to the retail purchaser.
• The manufacturer warrants to the initial owner and each subsequent purchaser, that the engine is free from defects in material
and workmanship which cause the failure of a warranted part for a period of two years.
• Repair or replacement of warranted part will be performed at no charge to the owner at an Authorized Bolens Service Center.
For the nearest location please contact Bolens at: 1-800-520-5520.
• Any warranted part which is not scheduled for replacement, as required maintenance or which is scheduled for only for regular
inspection to the effect of “Repair or Replace as Necessary” is warranted for the warranty period. Any warranted part which is
scheduled for replacement as required maintenance will be warranted for the period of time up to the first scheduled
replacement point for that part.
• The owner will not be charged for diagnostic labor which leads to the determination that a warranted part is defective, if the
diagnostic work is performed at an Authorized Bolens Service Center.
• The manufacturer is liable for damages to other engine components caused by the failure of a warranted part still under
warranty.
• Failures caused by abuse, neglect or improper maintenance are not covered under warranty.
• The use of add-on or modified parts can be grounds for disallowing a warranty claim. The manufacturer is not liable to cover
failures of warranted parts caused by the use of add-on or modified parts.
• In order to file a claim, go to your nearest Authorized Bolens Service Center. Warranty services or repairs will be provided at all
Authorized Bolens Service Centers.
• Any manufacturer approved replacement part may be used in the performance of any warranty maintenance or repair of
emission related parts and will be provided without charge to the owner. Any replacement part that is equivalent in performance
or durability may be used in non-warranty maintenance or repair and will not reduce the warranty obligations of the
manufacturer
• The following components are included in the emission related warranty of the engine, air filter, carburetor, primer, fuel lines,
fuel pick up/ fuel filter, ignition module, spark plug and muffler.
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