Ryobi Outdoor 510r User Manual
510r
4-Cycle Garden Cultivator
OPERATOR’S MANUAL
FOR QUESTIONS, CALL 1-800-345-8746 in U.S. or
1-800-265-6778 in CANADA
www.ryobi.com
IMPORTANT MANUAL DO NOT THROW AWAY
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-tounderstand operating instructions. Read the whole
manual and follow all the instructions to keep your new
outdoor power tool in top operating condition.
The other manual that came with your power tool, the
parts manual, contains all the information that you need
to order parts.
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
©
2000 Ryobi Outdoor Products, 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.
Dial:
• 1-800-345-8746 or www.ryobi.com on the world wide
web for authorized service dealers in the United States
Or
• 1-800-265-6778 in Canada to obtain the listing of the
authorized service dealer nearest you.
to obtain the listing of the authorized service dealer
nearest you.
DO NOT RETURN THE UNIT TO THE RETAILER.
NOTE: PROOF OF PURCHASE WILL BE REQUIRED
FOR WARRANTY SERVICE.
Make sure this manual is carefully read and understood
before starting or operating this equipment.
THIS PRODUCT IS COVERED BY ONE OR MORE
US PATENTS, OTHER PATENTS PENDING.
INTRODUCTION
2
TABLE OF CONTENTS
I. California Emission Regulations . . . . . . . . . . . . . . . . . 3
II. Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . 4-7
A. Important Safety Information . . . . . . . . . . . . . . . . . 4
B. Safety and International Symbols . . . . . . . . . . . 5-6
C. Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
III. Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . 8
A. Assembling the Unit . . . . . . . . . . . . . . . . . . . . . . . . .8
B. Positioning the Handlebars . . . . . . . . . . . . . . . . . . 8
C. Installing the Wheel Bracket Assembly . . . . . . . . . 8
IV. Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . 9-10
V. Starting/Stopping Instructions . . . . . . . . . . . . . . 10-11
VI. Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . 12
A. Operating Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
B. Adjusting Tine Depth . . . . . . . . . . . . . . . . . . . . . . 12
VII. Maintenance and Repair Instructions . . . . . . . . . 13-18
A. Maintenance Schedule . . . . . . . . . . . . . . . . . . . . 13
B. Tine Removal and Replacement . . . . . . . . . . . . . 13
C. Checking the Oil Level . . . . . . . . . . . . . . . . . . . . . 14
D. Changing the Oil . . . . . . . . . . . . . . . . . . . . . . . . . 14
E. Air Filter Maintenance . . . . . . . . . . . . . . . . . . . . . 15
F. Carburetor Adjustment . . . . . . . . . . . . . . . . . . . . 16
G. Rocker Arm Clearance . . . . . . . . . . . . . . . . . . 16-17
H. Replacing the Spark Plug . . . . . . . . . . . . . . . . . . 18
I. Spark Arrestor Maintenance . . . . . . . . . . . . . . . . 18
J. Accessories/Replacement parts . . . . . . . . . . . . . 18
VIII. Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . 19
A. Cleaning the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 19
B. Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
C. Long Term Storage . . . . . . . . . . . . . . . . . . . . . . . 19
D. Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
IX. Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . 20
X. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
XI. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-24
CONTENTS OF CARTON
This unit includes the following:
• Model 510r Garden Cultivator with Handlebars
• Wheel Bracket Assembly (located in top insert)
• Hardware Pack
• Bottle of 4-Cycle Oil
• Operator's Manual
• Parts Manual
Examine all parts to make certain that nothing is missing
and no breakage has occurred during shipping. Any
damaged or missing part must be replaced before using
this product.
3
CALIFORNIA EMISSION REGULATIONS
WARNING
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 #180890 Spark Arrestor Screen.
FOR QUESTIONS, CALL 1-800-345-8746 IN U.S. OR 1-800-265-6778 in CANADA
California Proposition 65 Warning:
THE ENGINE EXHAUST FROM THIS
PRODUCT CONTAINS CHEMICALS
KNOWN TO THE STATE OF CALIFORNIA
TO CAUSE CANCER, BIRTH DEFECTS
OR OTHER REPRODUCTIVE HARM.
This engine meets U.S. EPA PH1 and 2000 model year and later California emissions regulations for small off-road
engines. These units are identified by the label on the engine of your product. A typical identification label is shown.
To ensure that your unit continues to meet these regulations, refer to the following information and instructions in this
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.
SPARK ARRESTOR
WARNING!
WARNING: The operation of any power tool can cause foreign objects to be thrown into your
eyes. This can lead to severe eye damage. Before commencing power tool operation, always
wear safety glasses or goggles that are marked as meeting ANSI Z87.1 standards, and a full
face shield when needed.
RULES FOR SAFE OPERATION
4
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.
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
SAFETY ALERT SYMBOL: Indicates
danger, warning, or caution. Attention is
required in order to avoid serious personal
injury. May be used in conjunction with other
symbols or pictographs.
NOTE:Advises you of information or instructions vital to
the operation or maintenance of the equipment.
READ ALL INSTRUCTIONS
BEFORE OPERATING
• Read the instructions carefully. Be 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 and teens under the age of 15 must not use
the unit, except for teens guided by an adult.
• All guards and safety attachments must be installed
properly before operating the unit.
• 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 the
unit with loose or damaged parts.
• Carefully inspect the area before starting the unit.
Remove all debris and hard or sharp objects such
as glass, wire, etc.
• Clear the area of children, bystanders, and pets.
At a minimum, keep all children, bystanders and pets
outside a 50 feet (15 m) radius; there still may be a risk
to bystanders from thrown objects. Bystanders should
be encouraged to wear eye protection. If you are
approached, stop the unit immediately.
• Squeeze the throttle control and check that it returns
automatically to the idle position. Make all adjustments
or repairs before using unit.
SAFETY WARNINGS FOR GAS UNITS
WARNING: Gasoline is highly flammable, and its vapors
can explode if ignited. Take the following precautions:
• 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.
• 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 area outdoors
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 kill. 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 long sleeve
shirt. Do not wear, short pants, sandals or go barefoot.
• To reduce the risk of injury associated with objects
being drawn 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.
• IMPORTANT SAFETY INFORMATION •
RULES FOR SAFE OPERATION
5
• 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. See
Starting/Stopping Instructions.
• Use the right tool. Only use this tool for the purpose
intended.
• Do not force unit. It will do the job better and with less
likelihood of injury at a rate for which 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 when operation is delayed or
when walking from one location to another.
• Stop the engine for maintenance, repair, to install or
remove the tines. The unit must be stopped and the
tines no longer turning to avoid injury.
• The tines become very sharp from use. Always wear
heavy gloves when handling, removing, installing or
cleaning the tines.
• Use only genuine Ryobi replacement parts and accessories for this unit. These are available from
your authorized service dealer. Use of any non Ryobi
parts or accessories could lead to serious injury to the
user, or damage to the unit, and void your warranty.
• Keep unit clean of vegetation and other materials.
They may become lodged between the tines and
gearbox or guard.
• To reduce fire hazard, replace 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, see Cleaning and
Storage instructions.
• 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.
SAVE THESE INSTRUCTIONS
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.
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.
• FOR SERVICE INFORMATION, CALL:
USA: 1-800-345-8746
CANADA: 1-800-265-6778
• 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.
SYMBOL MEANING
• KEEP BYSTANDERS AWAY
WARNING:
Keep all bystanders, especially children and pets, at least 50 feet (15 m)
from the operating area.
• PRIMER
Push primer bulb, fully and slowly, 5 to 7 times.
• UNLEADED FUEL
Always use clean, fresh unleaded fuel.
• OIL
Refer to operator's manual for the proper type of oil.
• THROWN OBJECTS CAN CAUSE SEVERE INJURY
WARNING:
Do not operate unit without proper attachments and guards in place.
• ON/OFF STOP CONTROL
ON / START / RUN
• ON/OFF STOP CONTROL
OFF OR STOP
• HOT SURFACE WARNING
Do not touch a hot muffler, cylinder or gearbox. You may get burned. These parts get
extremely hot from operation. When turned off they remain hot for a short time.
• CHOKE CONTROL
A • FULL choke position.
B • PARTIAL choke position.
C • 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. Be in the starting position whenever pulling the starter rope. The
operator and unit must be in a stable position while starting.
RULES FOR SAFE OPERATION
6
RULES FOR SAFE OPERATION
7
KNOW YOUR UNIT
Tine Guard
Tines
Gearbox
Primer Bulb
Choke Control
Muffler Cover
Spark
Plug
Muffler
Fuel Cap
On/Off Stop
Control
STOP/OFF (O)
START/ON (I)
Throttle
Control
Throttle
Cable and
Switch Wires
Handlebar
Knobs
Starter Rope Grip
Handlebar
Wheel Bracket
Assembly
Handgrip
Handgrip
APPLICATION
Use this unit for cultivating sod and light to medium soil.
Also for cultivating in garden areas, around trees, etc.
INSTALLING THE WHEEL BRACKET ASSEMBLY
WARNING: To avoid injury from the tines,
wear heavy gloves and a long sleeve shirt
when installing the wheel bracket assembly.
WARNING: To prevent serious personal
injury the wheel bracket assembly shall be
installed when operating the unit.
NOTE: The wheel bracket assembly is located in the
cardboard insert, inside at the top of the carton.
1. With the unit on it’s 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 are
through the slotted holes in the wheel bracket.
Tighten the wing nuts (Fig. 4).
NOTE: Do not over tighten the wing nuts. Loosening the
wing nuts allow the wheel height to be adjusted.
ASSEMBLING THE UNIT
Your yard and garden cultivator has been completely
assembled, except for the wheel bracket assembly.
NOTE: This unit is shipped without being filled with oil.
In order to avoid damage to the unit, put oil in the
crankcase before attempting to start unit.
Unpacking
1. Carefully unpack the contents and insure 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. Remove the foam padding from between the
handlebar assembly.
4. Tighten the knobs to secure the handlebars in place.
NOTE: Do not over-tighten the knobs.
5. Readjust the throttle cable and switch wires so
they are smooth and tight against the handlebar
assembly. This will help prevent them being caught
or snagged during normal operation.
ADJUSTING THE HANDLEBAR HEIGHT
1. The height for the handlebars can be adjusted by
removing the knobs and mounting bolts and
reinstalling through either the top or bottom holes in
the handlebar assembly (Fig. 2).
2. Be sure to tighten the knobs to secure the
handlebars in place.
ASSEMBLY INSTRUCTIONS
8
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Handlebar
Knobs
Handlebar
Knobs
Handlebar
Knob
Handlebars
Washer
Bottom Hole
Top Hole
Bolt
Wing Nut &
Lock Washer
Tine
Guard
Wheel
Bracket
Assembly
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