Ryobi Trimmer 770rEB User Guide

770rEB  
2-Cycle Gas Trimmer / Edger / Blower  
OPERATOR’S MANUAL  
FOR QUESTIONS, CALL 1-800-345-8746 in U.S. or  
1-800-265-6778 in CANADA  
IMPORTANT MANUAL  
DO NOT THROW AWAY  
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CALIFORNIA EMISSION REGULATIONS  
This unit meets the 1995 to 1998 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  
operators manual.  
California Proposition 65 Warning:  
WARNING  
THE ENGINE EXHAUST FROM THIS PRODUCT  
CONTAINS CHEMICALS KNOWN TO THE STATE  
OF CALIFORNIA TO CAUSE CANCER, BIRTH  
DEFECTS OR OTHER REPRODUCTIVE HARM.  
SPARK ARRESTOR  
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 states 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 not factory equipped with a spark arrestor. If these  
items are required in your area, ask your LOCAL SERVICE dealer to install the Optional Accessory Part #180030 Spark  
Arrestor Kit.  
WARNING!  
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 1-800-345-8746 IN U.S. OR 1-800-265-6778 in CANADA  
RULES FOR SAFE OPERATION  
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.  
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.  
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.  
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.  
NOTE: Advises you of information or instructions vital to  
the operation or maintenance of the equipment.  
3
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RULES FOR SAFE OPERATION  
IMPORTANT SAFETY INFORMATION •  
Mix and add fuel in a clean, well-ventilated area  
READ ALL INSTRUCTIONS  
BEFORE OPERATING  
Read the instructions carefully. Be familiar with the  
controls and proper use of the unit.  
outdoors where there are no sparks or flames. Slowly  
remove the fuel cap only after stopping engine. Do not  
smoke while fueling or mixing fuel. Wipe up any spilled  
fuel from the unit immediately.  
Do not operate this unit when tired, ill, or under the  
influence of alcohol, drugs, or medication.  
Avoid creating a source of ignition for spilled fuel. Do  
not start the engine until fuel vapors dissipate.  
Children and teens under the age of 15 must not use  
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.  
the unit, except for teens guided by an adult.  
Inspect the unit before use. Replace damaged parts.  
Check for fuel leaks. Make sure all fasteners are in  
place and secure. Replace cutting attachment parts  
that are cracked, chipped, or damaged in any way.  
Make sure the cutting attachment is properly installed  
and securely fastened. Be sure the cutting attachment  
shield is properly attached, and positioned as recom-  
mended. Failure to so can result in personal injury to  
the operator and bystanders, as well as damage to 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 Z87.1-1989 standards, and ear/hearing  
protection when operating this unit. Wear a face or  
dust mask if the operation is dusty. Long sleeve shirts  
are recommended.  
Use only 0.080 inch (2.03 mm) diameter genuine Ryobi  
replacement line. Never use metal-reinforced line,  
wire, or rope, etc.. These can break off and become a  
dangerous projectile.  
Wear heavy, long pants, boots and gloves. Do not  
wear loose clothing, jewelry, short pants, sandals or  
go barefoot. Secure hair above shoulder level.  
Be aware of the risk of injury to the head, hands and  
feet.  
The cutting attachment shield must always be in place  
while operating the unit. Do not operate unit without  
both trimming lines extended, and the proper line  
installed. Do not extend the trimming line beyond the  
length of the shield.  
Clear the area to be cut before each use. Remove all  
objects such as rocks, broken glass, nails, wire, or  
string which can be thrown or become entangled in  
the cutting attachment. 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 engine  
and cutting attachment immediately.  
This unit has a clutch. The cutting attachment remains  
stationary when the engine is idling. If it does not, have  
the unit adjusted by an authorized service technician.  
Adjust the assist handle to your size to provide the  
best grip.  
Be sure the cutting attachment is not in contact with  
Squeeze the throttle control and check that it returns  
automatically to the idle position. Make all adjustments  
or repairs before using unit.  
anything before starting the unit.  
Use the unit only in daylight or good artificial light.  
This unit was not designed to be used as a brushcut-  
ter. Do not attach or operate this unit with any type of  
brushcutting blade or brushcutting attachment.  
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.  
SAFETY WARNINGS FOR GAS TRIMMERS  
WARNING: Gasoline is highly flammable, and its vapors  
can explode if ignited. Take the following precautions:  
Use the right tool. Only use this tool for the purpose  
intended.  
Do not overreach. Always keep proper footing and  
balance.  
Store fuel only in containers specifically designed and  
approved for the storage of such materials.  
Always hold the unit with both hands when operating.  
Keep a firm grip on both the front and rear handle or  
grips.  
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.  
Keep hands, face, and feet at a distance from all  
moving parts. Do not touch or try to stop the cutting  
attachment when it is rotating.  
4
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RULES FOR SAFE OPERATION  
Do not touch the engine or muffler. These parts get  
WHILE OPERATING WITH SWEEPER/BLOWER  
ADD-ON  
Inspect the unit before use. Ensure the air intake on  
sweeper/blower is free of debris.  
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 cut, trim or edge. Do not run the engine at  
high speed when not cutting.  
Do not overreach. Always keep proper footing and  
balance. Take extra caution when cleaning on steps  
or stairs.  
Always stop the engine when cutting is delayed or  
when walking from one cutting location to another.  
Never point the Blower in the direction of people or  
pets, or in the direction of windows. Always direct the  
blowing debris away from people, animals, glass, and  
solid objects such as trees, automobiles, walls, etc.  
If you strike or become entangled with a foreign  
object, stop the engine immediately and check for  
damage. Do not operate before repairing damage. Do  
not operate the unit with loose or damaged parts.  
OTHER SAFETY WARNINGS  
Never store the unit, with fuel in the tank, inside a  
building where fumes may reach an open flame or  
spark.  
Stop and switch the engine to off for maintenance,  
repair, or for changing the cutting attachment or other  
attachments.  
Use only genuine Ryobi replacement parts when  
servicing this unit. These parts are available from  
your authorized service dealer. Do not use parts,  
accessories or attachments not authorized by Ryobi  
for this unit. Doing so could lead to serious injury to  
the user, or damage to the unit, and void your  
warranty.  
Allow the engine to cool before storing or transporting.  
Be sure to secure the unit while transporting.  
Store the unit in a locked up and dry or high and dry  
place to prevent unauthorized use or damage, out of  
the reach of children.  
Never douse or squirt the unit with water or any other  
liquid. Keep handles dry, clean and free from debris.  
Clean after each use, see Cleaning and Storage  
instructions.  
Keep unit clean of vegetation and other materials.  
They may become lodged between the cutting  
attachment and shield.  
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.  
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.  
WHILE OPERATING WITH EDGER ADD-ON  
Inspect the unit before use. Ensure the blade is  
installed correctly and secure.  
SAVE THESE INSTRUCTIONS  
Clear the area to be edged before each use. Remove  
all objects such as rocks, broken glass, nails, wire, or  
string which can be thrown or become entangled in  
the edging attachment.  
Do not attempt to touch or stop the blade when it is  
rotating.  
A coasting blade can cause injury while it continues to  
spin after the engine is stopped or the throttle control  
is released. Maintain proper control until the blade has  
completely stopped rotating.  
Do not run the unit at high speed when not edging.  
If you strike or become entangled with a foreign  
object, stop the engine immediately and check for  
damage. Have any damage repaired before attempting  
further operations. Do not operate unit with a bent,  
cracked or dull blade. Discard blades that are bent,  
warped, cracked or broken.  
Stop the engine IMMEDIATELY if you feel excessive  
vibration. Vibration is a sign of trouble. Inspect  
thoroughly for loose nuts, bolts or damage before  
continuing. Repair or replace affected parts as  
necessary.  
5
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RULES FOR SAFE OPERATION  
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 Operators 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 Z87.1-1989 standards and ear protection when  
operating this unit.  
KEEP BYSTANDERS AWAY  
WARNING: Keep all bystanders, especially children and pets, at least 50 feet (15 m.)  
from the operating area.  
PRIMER BULB  
Push primer bulb, fully and slowly, 5 to 7 times.  
UNLEADED FUEL  
Always use clean, fresh unleaded fuel.  
THROWN OBJECTS AND ROTATING CUTTER CAN CAUSE SEVERE INJURY  
WARNING: Do not operate without the cutting attachment shield in place.  
Keep away from the rotating cutting attachment.  
ON/OFF STOP CONTROL  
ON / START / RUN  
ON/OFF STOP CONTROL  
OFF OR STOP  
6
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RULES FOR SAFE OPERATION  
SYMBOL  
MEANING  
HOT SURFACE WARNING  
Do not touch a hot muffler or cylinder. You may get burned. These parts get extremely  
hot from operation. When turned off they remain hot for a short time.  
SHARP BLADE  
WARNING: There is a sharp blade on the cutting attachment shield.  
To prevent serious injury, do not touch blade.  
INDICATES OIL  
Refer to operator's manual for the proper type of oil.  
CHOKE CONTROL  
A FULL CHOKE position.  
B PARTIAL CHOKE position.  
C RUN position.  
BLOWERS AND BLOWER/VACUUMS ROTATING IMPELLER BLADES CAN  
CAUSE SEVERE INJURY  
WARNING: Stop the engine and allow the impeller to stop before cleaning or  
performing any maintenance.  
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 Z87.1-1989 standards, and  
a full face shield when needed.  
7
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RULES FOR SAFE OPERATION  
KNOW YOUR UNIT  
Fuel Cap  
APPLICATIONS  
As a trimmer;  
On/Off Stop Control  
Starter Rope Grip  
Cutting grass and light weeds.  
Decorative trimming around trees, fences, etc.  
With Edger Add-On;  
Edging along paths, driveways, rockeries, etc.  
With Sweeper/Blower Add-On  
Spark Plug  
Cleaning driveways, porches, around walls, fences,  
etc.  
Choke Lever  
Shaft Grip  
Throttle Control  
J-handle  
Handle Hardware  
Power Head  
Hanger  
Primer Bulb  
Shaft Housing  
Air filter/Muffler  
Cover  
Click-Link  
Edger Add-On  
Sweeper/Blower  
Add-On  
Line Cutting  
Blade  
Height  
Adjustment  
Wheel  
Air Intakes  
Blade Shield  
Cutting Attachment  
Shield  
Cutting Attachment  
Air Output  
Edger Blade  
8
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ASSEMBLY INSTRUCTIONS  
6. While holding the unit in the operating position  
INSTALLING AND ADJUSTING THE J-HANDLE  
1. Place the J-handle between the top and middle  
clamp pieces (Fig. 1).  
(Fig. 3), position the J-handle to the location  
that provides you the best grip.  
J-Handle  
(4) Screws  
Top Clamp  
Middle Clamp  
Bottom Clamp  
Nuts  
Fig. 1  
2. While holding the three pieces together, install the  
four (4) screws through the top clamp and into  
middle clamp.  
Fig. 3  
NOTE: The holes in the top and middle clamp will line up  
7. Tighten the clamp screws evenly, until the J-handle  
is secure.  
only when assembled correctly.  
3. Place the clamps and J-handle the over the shaft  
housing and onto the bottom clamp.  
4. Hold each hex nut in the bottom clamp recess with a  
finger. Start screws with a large Phillips screwdriver.  
Do not tighten until you make the handle adjustment.  
5. Slide the J-handle in or out until the arrow/white line  
on the decal touches the clamp assembly (Fig. 2).  
Decal  
Fig. 2  
9
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ASSEMBLY INSTRUCTIONS  
3. Install a screw into the hole from the bottom of the  
INSTALLING THE CUTTING ATTACHMENT  
SHIELD  
Use the following instructions if the cutting attachment  
shield on your unit is not installed.  
cutting attachment shield and screw it into the nut  
installed in step #2 (Fig 6). Do not tighten.  
WARNING: Never operate the trimmer  
without the cutting attachment shield in  
place to prevent serious personal injury.  
1. Slide the cutting attachment shield into the shield  
mount on the cutting attachment. Align the screw  
holes in the shield with the holes in the cutting  
attachment (Fig. 4).  
Cutting Attachment  
Shield  
Shaft Housing  
Screws  
Fig. 6  
4. Repeat steps 2 and 3 until all three screws have  
been started, then tighten securely.  
Shield Mount  
Cutting Attachment  
Fig. 4  
2. Place a hex lock nut into one of the three recessed  
holes on the top of the cutting attachment shield  
(Fig 5).  
Cutting Attachment  
Shield  
Recessed Holes  
Hex Lock Nut  
Fig. 5  
10  
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OIL AND FUEL INFORMATION  
Thoroughly mix the proper ratio of 2-cycle engine oil  
OIL AND FUEL MIXING INSTRUCTIONS  
with unleaded gasoline in a separate fuel can. Use a 32:1  
fuel/oil ratio. Do not mix them directly in the engine fuel  
tank. See the table below for specific gas and oil mixing  
ratios.  
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.  
NOTE: One gallon (3.8 liters) of unleaded gasoline mixed  
with one 4 oz. (120 ml.) bottle of RYOBI 2 CYCLE  
OIL makes a 32:1 fuel/oil ratio.  
Definition of Blended Fuels  
Today's fuels are often a blend of gasoline and oxy-  
genates 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.  
UNLEADED GAS  
RYOBI 2 CYCLE OIL  
Always use fresh fuel mix per your operator's manual.  
Use the fuel additive STA-BIL® or an equivalent.  
Always agitate the fuel mix before fueling the unit.  
1 US. GALLON + 4.0 FL. OZ.  
(3.8 LITERS) (120 ml)  
Drain the tank and run the engine dry before storing  
the unit.  
1 LITER + 30 ml  
MIXING RATIO - 32:1  
Using Fuel Additives  
The use of fuel additive, such as STA-BIL® Gas  
Stabilizer or an equivalent, will inhibit corrosion and mini-  
mize the formation of gum deposits. Using a fuel addi-  
tive can keep fuel from forming harmful deposits in the  
carburetor for up to six (6) months. 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.  
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.  
WARNING: Remove fuel cap slowly to avoid  
injury from fuel spray. Never operate the unit  
without the fuel cap securely in place.  
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 spilt fuel. Do not start the engine  
until fuel vapors dissipate.  
NOTE: Dispose of the old fuel/oil mix in accordance to  
Federal, State, and Local regulations.  
11  
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STARTING/STOPPING INSTRUCTIONS  
5. With the unit on the ground, squeeze the throttle  
STARTING INSTRUCTIONS  
control and pull starter rope briskly (Fig. 9). Continue  
pulling until the engine sounds as though it wants to  
run (normally 2 to 5 pulls).  
WARNING: Avoid accidental starting. Be in  
the starting position when pulling the starter  
rope (Fig. 9). The operator and unit must be  
in a stable position while starting to avoid  
serious personal injury.  
NOTE: Squeeze the throttle control until the engine has  
started and warmed up.  
6. Place the choke lever in the PARTIAL choke position  
(B) (Fig. 8).  
Avoid serious personal injury, ensure any  
Add-On being used is installed correctly  
and secure before starting unit.  
7. Pull starter rope briskly 1 to 3 times to start the  
engine (Fig. 9).  
1. Mix gas with oil. Fill fuel tank with fuel/oil mixture.  
See Oil and Fuel Mixing Instructions Pg. 11.  
2. Put the On/Off Stop Control in the ON position  
(Fig. 7).  
Starter Rope  
On/Off Stop Control  
Throttle Control  
Fig. 9  
Fig. 7  
3. Fully press and release primer bulb slowly 5 to 7  
times. Fuel should be visible in the bulb (Fig. 8).  
If fuel is not visible, press three (3) more times, or  
until it is.  
8. If the engine does not start, repeat steps  
4 through 7.  
NOTE: If the engine floods while trying to start, place the  
choke lever in the RUN position (C) (Fig. 8).  
Squeeze the throttle control. Pull the starter rope  
briskly. The engine should start within three (3) to  
eight (8) pulls.  
Partial Choke  
Position (B)  
Full Choke  
Position (A)  
Run  
Position (C)  
9. Squeeze the throttle control to warm up engine for 5  
to 10 seconds. Place the choke lever in the RUN  
position (C) (Fig. 8).  
NOTE: Choking is unnecessary when starting a warm  
engine. Put the On/Off Stop Control in the ON  
position (Fig. 7), and start in PARTIAL Choke  
position (B) (Fig. 8).  
Choke Lever  
WARNING: Operate this unit only in a well  
ventilated area outdoors. Carbon monoxide  
exhaust fumes can be lethal in a confined  
area.  
Primer Bulb  
STOPPING INSTRUCTIONS  
1. Release your hand from the throttle control (Fig. 9).  
Allow the engine to cool down by idling.  
2. Put the On/Off Stop Control in the OFF position  
(Fig. 7).  
Fig. 8  
4. Place the choke lever in the FULL choke position (A)  
(Fig. 8).  
12  
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OPERATING INSTRUCTIONS  
2. While firmly holding the add-on, push it straight into  
OPERATING THE CLICK-LINK® SYSTEM  
The Click-Link® system enables the use of these  
optional add-ons.  
the Click-Link® coupler (Fig. 11).  
NOTE: Aligning the release button with the guide recess  
will help installation (Fig. 11).  
Blower/Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . BV720r  
Cultivator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GC720r  
Hedge Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . HS720r  
Snow Thrower . . . . . . . . . . . . . . . . . . . . . . . . . . . ST720r  
Straight Shaft Trimmer . . . . . . . . . . . . . . . . . . . . SS725r  
Tree Pruner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TP720r  
Turbo Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . TB720r  
Click-Link® Coupler  
Release Button  
Primary Hole  
WARNING: Read and understand operators  
manual for add-on prior to operation.  
Upper Shaft  
Housing  
Lower Shaft  
Housing  
Removing the Cutting Attachment or Add-Ons:  
1. Turn the knob counterclockwise to loosen (Fig. 10).  
2. Press and hold the release button (Fig. 10).  
Fig. 11  
3. While firmly holding the upper shaft housing, pull the  
cutting attachment or add-on straight out of the  
Click-Link® coupler.  
3. Turn the knob clockwise to tighten (Fig. 12).  
CAUTION: Lock the release button in the  
primary hole and securely tighten the knob  
before operating this unit.  
Installing the Cutting Attachment or Add-Ons:  
WARNING: To avoid serious personal injury,  
shut unit off before removing or installing  
add-ons.  
90˚ Edging Hole  
NOTE: To make installing or removing the add-on easier,  
place the unit on the ground or on a work bench.  
1. Turn the knob counterclockwise to loosen (Fig. 10).  
180˚ Edging  
Hole  
Click-Link® Coupler  
Release Button  
Knob  
Fig. 12  
CAUTION: The cutting attachment and add-  
ons with the Click-Link® system are to be  
used in the primary hole unless stated other-  
wise in the specific add-ons operators man-  
ual. Using the wrong hole could lead to per-  
sonal injury, or damage to the unit.  
Guide  
Recess  
Knob  
Fig. 10  
For edging when using the line head cutting attachment  
with Click-Link® models, lock the release button of the  
cutting attachment into the 90° edging hole or the 180°  
edging hole(Fig. 12). The edger add-on should be  
installed with the release button in the primary hole.  
13  
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OPERATING INSTRUCTIONS  
Each time the head is bumped, about 1 inch (25.4 mm.)  
HOLDING THE TRIMMER  
of trimming line is released. A blade in the cutting  
attachment shield will cut the line to the proper length  
if excess line is released.  
WARNING: Always wear eye, hearing, foot  
and body protection to reduce the risk of  
injury when operating this unit.  
For best results, tap the Bump Headon bare ground  
or hard soil. If line release is attempted in tall grass, the  
engine may stall. Always keep the trimming line fully  
extended. Line release becomes more difficult as the  
cutting line becomes shorter.  
Before operating the unit, stand in the operating position  
(Fig. 13). Check for the following:  
The operator is wearing eye protection and proper  
clothing.  
NOTE: Do not rest the Bump Headon the ground.  
The right arm is slightly bent, and the hand is holding  
the shaft grip.  
CAUTION: Do not remove or alter the line  
cutting blade assembly. Excessive line length  
will make the clutch overheat. This may lead  
to serious personal injury or damage to the  
unit.  
The left arm is straight, and the hand is holding the  
handle.  
The unit is at waist level.  
The cutting attachment is parallel to the ground and  
easily contacts the vegetation to be cut without the  
operator having to bend over.  
Some line breakage will occur from:  
Entanglement with foreign matter  
Normal line fatigue  
Attempting to cut thick, stalky weeds  
Forcing the line into objects such as walls or fence  
posts  
TIPS FOR BEST TRIMMING RESULTS  
Keep the cutting attachment parallel to the ground.  
Do not force the cutting attachment. Allow the tip of  
the line to do the cutting (especially along walls).  
Cutting with more than the tip will reduce cutting  
efficiency and may overload the engine.  
Cut grass over 8 inches (200 mm.) by working from  
top to bottom in small increments to avoid premature  
line wear or engine drag.  
Cut from right to left whenever possible. Cutting to the  
left improves the unit's cutting efficiency. Clippings are  
thrown away from the operator.  
Fig. 13  
ADJUSTING TRIMMING LINE LENGTH  
Slowly move the trimmer into and out of the cutting  
area at the desired height. Move either in a forward-  
backward or side-to-side motion. Cutting shorter  
lengths produces the best results.  
The Bump Headcutting attachment allows you to  
release trimming line without stopping the engine. To  
release more line, lightly tap the cutting attachment on  
the ground (Fig. 14) while operating the trimmer at high  
speed.  
Trim only when grass and weeds are dry.  
The life of your cutting line is dependent upon;  
Following the previous trimming techniques  
What vegetation is being cut  
NOTE: Always keep the trimming line fully extended.  
Line release becomes more difficult as cutting  
line becomes shorter.  
Where its being cut  
For example, the line will wear faster when trimming  
against a foundation wall as opposed to trimming  
around a tree.  
Fig. 14  
14  
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OPERATING INSTRUCTIONS  
DECORATIVE TRIMMING  
ADJUSTING EDGER CUTTING DEPTH  
Decorative trimming is accomplished by removing all  
vegetation around trees, posts, fences, etc.  
1. Loosen the adjustment knob above the wheel  
(Fig 17).  
Rotate the whole unit so that the cutting attachment is at  
a 30° angle to the ground (Fig. 15).  
2. Slide the wheel to the desired position.  
Raising the wheel increases the cutting depth.  
Lowering the wheel decreases the cutting depth.  
3. Tighten the adjustment knob securely.  
Fig. 15  
HOLDING THE UNIT WITH EDGER ADD-ON  
Lowering  
Raising  
WARNING: Always wear eye, hearing, foot  
and body protection to reduce the risk of  
injury when operating this unit.  
Fig. 17  
TIPS FOR BEST EDGING RESULTS  
Keep the cutting attachment perpendicular to the  
Before operating the unit, stand in the operating position  
(Figs. 16). Check for the following:  
ground.  
The operator is wearing eye protection and proper  
clothing.  
Do not force the edger. Edge the first time at a lower  
depth, then do the area again with a deeper setting.  
The right arm is slightly bent, and the hand is holding  
the shaft grip.  
Walk the edger at a slow, even pace  
Check the blade condition, as it wears it becomes  
smaller, reducing the cutting depth performance.  
Replace with a new blade as required.  
The left arm is straight, and the hand is holding the  
handle.  
The unit is at waist level.  
The edger wheel adjusted for proper cut depth and  
edger positioned as shown in Fig. 16.  
Fig. 16  
15  
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OPERATING INSTRUCTIONS  
HOLDING THE UNIT WITH SWEEPER/BLOWER  
ADD-ON  
OPERATING TIPS WHEN USING  
SWEEPER/BLOWER  
To reduce the risk of hearing loss associated with  
sound level(s), the use of hearing protection is  
required.  
WARNING: Always wear eye, hearing, foot  
and body protection to reduce the risk of  
injury when operating this unit.  
Operate power equipment only at reasonable hours –  
not early in the morning or late at night when people  
might be disturbed. Comply with time listed in local  
ordinance. Usual recommendations are 9:00 am to  
5:00 pm, Monday through Saturday.  
Before operating the unit, stand in the operating position  
(Figs. 18). Check for the following:  
The operator is wearing eye protection and proper  
clothing.  
The right arm is slightly bent, and the hand is holding  
the shaft grip.  
To reduce noise levels, limit the number of pieces of  
equipment used at any one time.  
The left arm is straight, and the hand is holding the  
handle.  
To reduce noise levels, operate power blowers at the  
lowest possible speed to do the job.  
The unit is at waist level.  
Use rakes and brooms to loosen debris before  
blowing.  
The sweeper/blower is parallel to the ground and is  
positioned so debris is blown away from operator.  
In dusty conditions, slightly dampen surfaces or use a  
mister attachment when water is available.  
WARNING: To prevent serious injury to  
yourself or others, or possible damage to  
property, never point the sweeper/blower in  
the direction of people or pets, or in the  
direction of windows. Always direct the  
blowing debris away from people, animals,  
glass, and solid objects such as trees,  
automobiles, walls, etc.  
Conserve water by using power blowers instead of  
hoses for many lawn and garden applications,  
including areas such as gutters, screens, patios,  
grills, porches, and gardens  
Watch out for children, pets, open windows, or freshly  
washed cars, and blow debris away.  
After using blowers and other equipment, CLEAN UP!  
Dispose of debris in trash receptacles.  
1. Use the sweeper/blower to clean around buildings,  
walls and fences (Figs. 18 & 19).  
2. Use around trees, shrubs and flower beds (Fig. 20).  
Fig. 19  
Fig. 18  
Fig. 20  
16  
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MAINTENANCE AND REPAIR INSTRUCTIONS  
NOTE: Some maintenance procedures may require  
WARNING: To prevent serious personal  
injury, never do maintenance or repairs with  
unit running. Always do maintenance and  
repairs on a cool unit. Disconnect spark plug  
wire to ensure the unit will not start.  
special tools or skills. If you are unsure about  
these procedures take your unit to an authorized  
service dealer.  
MAINTENANCE SCHEDULE  
These required maintenance procedures should be  
performed at the frequency stated in the table. They  
should also be included as part of any seasonal tune-up.  
FREQUENCY  
Before Starting Engine  
Every 10 Hours  
MAINTENANCE REQUIRED  
REFER TO:  
Fill fuel tank with correct oil and fuel mixture.  
Page 11  
Page 20  
Page 22  
Clean and re-oil air filter.  
Every 50 Hours  
Check spark plug condition and gap.  
2. Remove the inner reel from the outer spool (Fig. 22).  
3. Remove spring from the inner reel (Fig. 22).  
LINE INSTALLATION  
Always use genuine Ryobi 0.080 inch (2.03 mm.)  
replacement line. Line other than specified may make  
the engine overheat or fail.  
NOTE: An inner reel spring, Part # 610317 can be  
purchased from your local authorized dealer.  
WARNING: To prevent serious personal  
injury, never use metal-reinforced line, wire,  
or rope, etc.. These can break off and  
become a dangerous projectile.  
Shaft  
Outer Spool  
There are two methods to replace the trimming line.  
Wind the inner reel with new line  
Inner Reel  
Install a prewound inner reel  
NOTE: Replacement line Part # 610375, or a prewound  
reel, Part # 153577 can be purchased from your  
local authorized dealer.  
Spring  
Winding the Existing Inner Reel  
1. Hold the outer spool with one hand and unscrew the  
Bump Knobcounterclockwise (Fig. 21). Inspect  
the bolt inside the Bump Knobto make sure it  
moves freely. Replace the Bump Knobif damaged.  
Fig. 22  
NOTE: A Bump Knob, Part # 153066 can be  
4. Use a clean cloth to clean the inner reel, spring,  
shaft, and inner surface of the outer spool (Fig. 23).  
purchased from your local authorized dealer.  
Bump Knob™  
Fig. 23  
Fig. 21  
17  
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MAINTENANCE AND REPAIR INSTRUCTIONS  
5. Check the indexing teeth on the inner reel and outer  
spool for wear (Fig. 24). If necessary, remove burrs  
or replace the reel and spool.  
NOTE: A cutting attachment head assembly,  
Part # 153700 can be purchased from your  
local authorized dealer.  
Indexing Teeth  
Fig. 26  
8. Insert the ends of the line into the two holding slots  
(Fig. 27).  
Fig. 24  
6. Take approximately 25 feet (7.6 m) of new 0.080 inch  
diameter trimming line, loop it into two equal lengths.  
Insert each end of the line through one of the two  
holes in the inner reel (Fig. 25). Pull the line through  
the inner reel so that the loop is as small as possible.  
NOTE: Always use the correct line length when installing  
trimming line on the unit. The line may not  
release properly if the line is too long.  
Holding Slots  
Fig. 27  
9. Place the spring in the inner reel. Insert the ends of  
the line through the eyelets in the outer spool and  
place inner reel inside the outer spool (Fig. 28). Push  
the inner reel and outer spool together. While holding  
the inner reel and outer spool, grasp the ends and  
pull firmly to release the line from the holding slots in  
the spool.  
NOTE: The spring must be assembled on the inner reel  
before reassembling the cutting attachment.  
Fig. 25  
7. Wind the lines in tight even layers, onto the reel  
(Fig. 26). Wind the line in the direction indicated on  
the inner reel. Place your index finger between the  
two lines to stop the lines from overlapping. Do not  
overlap the ends of the line.  
NOTE: Failure to wind the line in the direction indicated  
will cause the cutting attachment to operate  
incorrectly.  
Fig. 28  
10. Hold the inner reel in place and install the  
Bump Knobby turning clockwise.  
Tighten securely.  
18  
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MAINTENANCE AND REPAIR INSTRUCTIONS  
3. Install the new blade, blade retainer, and nut  
INSTALLING A PREWOUND REEL  
(Fig. 31). Insert the locking rod through the slot into  
the output shaft hole. Make sure that the blade stays  
flat and centered against the output shaft while  
tightening the lock nut counterclockwise (Fig. 32).  
1. Hold the outer spool with one hand and unscrew the  
Bump Knobcounterclockwise (Fig. 21, Pg 17).  
Inspect the bolt inside the Bump Knobto make  
sure it moves freely. Replace the Bump Knob™  
if damaged.  
4. If you have a torque wrench, tighten the nut to  
325-335 in.lbs (37-38 Nm), while holding the  
locking rod in the slot.  
2. Remove the old inner reel from the outer spool  
(Fig. 22, Pg. 17).  
If you do not have a torque wrench, hold the locking  
rod in the slot. Rotate the nut counterclockwise  
with a 5/8 inch closed-ended or socket wrench, until  
the nut presses against the washer and the blade is  
snug. Make sure the blade assembly is installed  
correctly, then rotate the nut an additional 1/4-1/2  
turn (Fig. 32).  
3. Remove the spring from the old inner reel  
(Fig. 22, Pg. 17).  
4. Use a clean cloth to clean the spring, shaft, and  
inner surface of the outer spool (Fig. 23, Pg. 17).  
5. Place the spring in the new inner reel. Insert the ends  
of the line through the eyelets in the outer spool  
(Fig. 28).  
5. Remove the locking rod.  
6. Place the new inner reel inside the outer spool. Push  
the inner reel and outer spool together. While holding  
the inner reel and outer spool, grasp the ends and  
pull firmly to release the line from the holding slots in  
the spool.  
WARNING: Verify the blade is flat against  
the output shaft after the nut is tightened. If  
the blade is off-center, the unit will be  
damaged by vibration, and the blade may fly  
off, which can cause serious personal injury.  
NOTE: The spring must be assembled on the inner reel  
before reassembling the cutting attachment.  
Loosen  
7. Hold the inner reel in place and install the  
Bump Knobby turning clockwise.  
Tighten securely.  
EDGER BLADE REPLACEMENT  
WARNING: To avoid serious personal injury,  
always wear gloves while handling, removing  
or installing the blade.  
WARNING: The gear housing gets hot  
after long periods of use. To avoid serious  
personal injury, do not touch the housing  
until it has cooled.  
Fig. 30  
Lock Nut  
Edger Blade  
1. Line up the hole in output shaft with the locking rod  
slot. Insert the locking rod through the slot into the  
output shaft hole (Fig. 29).  
Blade Retainer  
2. While holding the locking rod, loosen the nut on the  
blade by turning it clockwise with a 5/8 inch wrench  
(Fig. 30). Remove the nut, retaining washer and  
blade. Keep the nut and blade retainer for  
installation.  
Locking Rod  
Fig. 31  
Tighten  
Output Shaft  
Hole  
Locking Rod  
Locking Rod  
Slot  
Output Shaft  
Fig. 29  
Fig. 32  
19  
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MAINTENANCE AND REPAIR INSTRUCTIONS  
AIR FILTER MAINTENANCE  
Removing the Air Filter/Muffler Cover  
WARNING: To avoid serious personal injury,  
always turn your trimmer off and allow it to  
cool before you clean or do any maintenance  
on it.  
1. Place the choke lever in the PARTIAL choke  
Air Filter  
position (B).  
NOTE: The choke lever must be in the PARTIAL  
choke position (B) (Fig. 33) to remove the air  
filter/muffler cover.  
2. Remove the four (4) screws securing the air  
filter/muffler cover (Fig. 33). Use a flat blade or  
T20 Torx bit screwdriver.  
Fig. 34  
3. Wash the filter in detergent and water (Fig. 35).  
Rinse the filter thoroughly. Squeeze out excess  
water. Allow it to dry completely.  
Choke Lever  
Partial Choke  
Position (B)  
Screws  
Screws  
Fig. 35  
Fig. 33  
4. Apply enough clean SAE 30 oil to lightly coat the  
filter (Fig. 36).  
3. Pull the cover from the engine. Do not force.  
Cleaning the Air Filter  
WARNING: To avoid serious personal injury,  
always turn your trimmer off and allow it to  
cool before you clean or do any maintenance  
on it.  
Clean and re-oil the air filter every 10 hours of operation.  
It is an important item to maintain. Not maintaining the  
air filter will VOID the warranty.  
1. Remove air filter/muffler cover. See Removing the  
Air filter/Muffler Cover.  
2. Remove the air filter from behind the air filter/muffler  
cover (Fig. 34).  
Fig. 36  
20  
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MAINTENANCE AND REPAIR INSTRUCTIONS  
5. Squeeze the filter to spread and remove excess oil  
(Fig. 37).  
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 at a high idle for a  
minute to warm up. See Starting/Stopping  
Instructions, Pg. 12.  
2. Release the throttle trigger and let the engine idle. If  
the engine stops, insert a small phillips or flat blade  
screwdriver into the hole in the air filter/muffler cover  
(Fig. 38). Turn the idle speed screw in, clockwise,  
1/8 of a turn at a time (as needed) until the engine  
idles smoothly.  
Idle Speed Screw  
Fig. 37  
6. Replace the air filter in the air filter/muffler cover  
(Fig. 34).  
NOTE: Operating the unit without the air filter and air  
filter/muffler cover assembly, will VOID the  
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 lever must be in the PARTIAL choke  
position (B) (Fig. 33) to install the air filter/muffler  
cover.  
Fig. 38  
2. Insert the four (4) screws into the holes in the air  
filter/muffler cover (Fig. 33) and tighten.  
Do not over tighten.  
NOTE: The cutting attachment should not rotate when  
the engine idles.  
3. If the cutting attachment rotates when the engine  
idles, turn the idle speed screw counterclockwise  
1/8 of a turn at a time (as needed), to reduce idle  
speed.  
CARBURETOR ADJUSTMENT  
The idle speed of the engine is adjustable through the  
Air filter/Muffler cover (Fig. 38).  
Checking the fuel mixture, cleaning the air filter, and  
adjusting the idle speed screw should solve most engine  
problems.  
NOTE: Careless adjustments can seriously damage your  
unit. An authorized service dealer should make  
carburetor adjustments.  
If not and:  
Check Fuel Mixture  
The engine will not idle,  
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 Pg. 11.  
The engine hesitates or stalls on acceleration,  
There is a loss of engine power,  
Clean Air Filter  
have the carburetor adjusted by an authorized service  
dealer.  
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 screw. Refer to  
Air Filter Maintenance Pg. 20.  
WARNING: When the unit is turned off make  
sure the cutting attachment has stopped  
before the unit is set down to prevent serious  
personal injury.  
Adjust Idle Speed Screw  
WARNING: The cutting attachment may be  
spinning during idle speed adjustments.  
Wear protective clothing and observe all  
safety instructions to prevent serious person-  
al injury.  
21  
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MAINTENANCE AND REPAIR INSTRUCTIONS  
REPLACING THE SPARK PLUG  
Use a Champion RDJ7Y spark plug (or equivalent).  
The correct air gap is 0.020 inch (0.5 mm.). Remove the  
plug after every 50 hours of operation and check its  
condition.  
1. Stop the engine and allow it to cool. Grasp the plug  
wire firmly and pull it from the spark plug.  
0.020 in.  
(0.5 mm.)  
2. Clean around the spark plug. Remove the spark plug  
from the cylinder head by turning a 5/8 in. socket  
counterclockwise.  
3. Replace cracked, fouled or dirty spark plug. Set the  
air gap at 0.020 in. (0.5 mm.) using a feeler gauge  
(Fig. 39).  
Fig. 39  
ACCESSORIES/REPLACEMENT PARTS  
CAUTION: Do not sand blast, scrape, or  
clean electrodes. Grit in the engine could  
damage the cylinder.  
2-Cycle Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147543  
Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 610311  
Replacement Line . . . . . . . . . . . . . . . . . . . . . . . 610375  
Replacement Line Cartridge . . . . . . . . . . . . . . . . 153577  
Inner Reel Spring . . . . . . . . . . . . . . . . . . . . . . . . 610317  
Bump Head Knob Assembly . . . . . . . . . . . . . . . . 153066  
Fuel Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180000  
Edger Blade . . . . . . . . . . . . . . . . . . . . . . . . . . . . 613223  
Shoulder Strap . . . . . . . . . . . . . . . . . . . . . . . . . . 682075  
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 Nm).  
Do not over tighten.  
22  
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CLEANING AND STORAGE  
CLEANING  
TRANSPORTING  
Allow the engine to cool before transporting.  
Secure the unit while transporting.  
Drain fuel from unit.  
WARNING: To avoid serious personal injury,  
always turn your trimmer off and allow it to  
cool before you clean or do any maintenance  
on it.  
Tighten fuel cap before transporting.  
Use a small brush to clean off the outside of the unit.  
Do not use strong detergents. Household cleaners that  
contain aromatic oils such as pine and lemon, and  
solvents such as kerosene, can damage plastic housing  
or handle. Wipe off any moisture with a soft cloth.  
STORAGE  
Never store the unit with fuel in the tank where fumes  
may reach an open flame or spark.  
Allow the engine to cool before storing.  
Store the unit locked up 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 the unit will be stored for an extended time, use the  
following storage procedure.  
1. Drain all fuel from the fuel tank and drain into a  
container with the same 2-cycle fuel mixture. Do not  
use fuel that has been stored for more than 60 days.  
Dispose of the old fuel/oil mix in accordance to  
Federal, State, and 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 any high quality motor oil or  
2-cycle 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  
trimmer 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.  
23  
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TROUBLESHOOTING  
ENGINE WILL NOT START  
C A U S E  
A C T I O N  
On/Off Stop Control is in OFF position  
Turn On/Off Stop Control to ON  
Empty fuel tank  
Fill fuel tank with properly mixed fuel  
Press primer bulb fully and slowly 5-7 times  
Primer bulb wasn't pressed enough  
Engine flooded  
Use starting procedure with choke lever in the  
RUN position, Pg. 12  
Old or improperly mixed fuel  
Fouled spark plug  
Drain gas tank / Add fresh fuel mixture  
Replace or clean the spark plug  
ENGINE WILL NOT IDLE  
C A U S E  
A C T I O N  
Air Filter is Plugged  
Replace or clean the air filter  
Drain gas tank / Add fresh fuel mixture  
Adjust per instruction Pg. 21  
Old or improperly mixed fuel  
Improper carburetor adjustment  
ENGINE WILL NOT ACCELERATE  
C A U S E  
A C T I O N  
Old or improperly mixed fuel  
Drain gas tank / Add fresh fuel mixture  
Improper carburetor adjustment  
Take to an authorized service dealer for  
carburetor adjustment  
Cutting attachment bound with grass  
Dirty air filter  
Stop the engine and clean the cutting attachment  
Clean or replace the air filter  
ENGINE LACKS POWER OR STALLS WHEN CUTTING  
C A U S E  
A C T I O N  
Old or improperly mixed fuel  
Drain gas tank / Add fresh fuel mixture  
Improper carburetor adjustment  
Take to an authorized service dealer for  
carburetor adjustment  
CUTTING ATTACHMENT WILL NOT ADVANCE LINE  
C A U S E  
A C T I O N  
Cutting attachment bound with grass  
Cutting attachment out of line  
Inner reel bound up  
Stop the engine and clean cutting attachment  
Refill with new line  
Replace the inner reel  
Cutting head dirty  
Clean inner reel and outer spool  
Line welded  
Disassemble, remove the welded section  
and rewind the line  
Line twisted when refilled  
Not enough line is exposed  
Disassemble and rewind the line  
Push the Bump Knob and pull out line until  
4 inches (102 mm.) of line is outside of the  
cutting attachment  
24  
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SPECIFICATIONS  
ENGINE  
Engine Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 2-Cycle  
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.25 in. (31.75 mm.)  
Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.9 cu in. (31 cc.)  
Clutch Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Centrifugal  
Operating RPM (Trimmer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,600-8,000 rpm  
Idle Speed RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,800-3,900 rpm  
Ignition Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic  
Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Slide Switch  
Spark Plug Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.020 in. (0.5 mm.)  
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel/Oil Mixture  
Fuel/Oil Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32:1  
Carburetor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diaphragm, All-Position  
Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto Rewind  
Muffler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Baffled with Guard  
Throttle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Manual Spring Return  
Fuel Tank Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 oz. (530 ml.)  
Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HD Polyethylene  
DRIVE SHAFT and CUTTING ATTACHMENT  
Drive Shaft Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Steel Tube, Click-Link  
Throttle Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Finger-Tip Trigger  
Unit Weight (No fuel, with cutting attachment, cutting attachment shield and J-handle) . . . . . . . 12.25 lbs. (5.6 kg.)  
Cutting Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dual Line Bump Head  
Shoulder Strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Optional  
Line Spool Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 in (76.2 mm)  
Trimming Line Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.080 in (2.03 mm.)  
Cutting Path Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 in. (40.64 cm)  
EDGER ADD-ON  
Unit Weight (Add-On only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.25 lbs. (2.36 kg.)  
Cutting Depth (maximum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 in. (63.5 mm)  
Wheel Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.75 in (95.25 mm)  
Gearbox Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.23:1  
SWEEPER/BLOWER ADD-ON  
Unit Weight (Add-On only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.25 lbs. (1.46 kg.)  
Air Output Velocity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 100 MPH  
25  
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NOTES  
26  
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CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT  
YOUR WARRANTY RIGHTS AND OBLIGATIONS  
The California Air Resources Board and Ryobi  
MANUFACTURER'S WARRANTY COVERAGE:  
Outdoor Products (ROP), are pleased to explain the  
emission control system warranty on your 1995 and  
later small off-road engine. In California, new small  
off-road engines must be designed, built and  
equipped to meet the State's stringent anti-smog  
standards. ROP 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.  
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 Ryobi Service Center. For the nearest  
location, please contact Ryobi at: 1-800-345-8746.  
Your emission control system may include parts such  
as the carburetor or fuel injection system, the ignition  
system, and catalytic converter. Also included may be  
hoses, belts, connectors and other emission-related  
assemblies.  
Any warranted part which is not scheduled for  
replacement, as required maintenance which is  
scheduled 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.  
Where a warrantable condition exists, ROP will repair  
your small off-road engine at no cost to you including  
diagnosis, parts and labor.  
The 1995 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 by ROP.  
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 Ryobi Service Center.  
OWNER'S 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. ROP  
recommends that you retain all receipts covering  
maintenance on your small off-road engine, but  
ROP cannot deny warranty solely for the lack of  
receipts or for your failure to ensure the  
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 or  
warranted parts caused by the use of add-on or  
modified parts.  
performance of all scheduled maintenance.  
As the small off-road engine owner, you should  
however be aware that ROP 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.  
In order to file a claim, go to your nearest  
Authorized Ryobi Service Center. Warranty services  
or repairs will be provided at all Authorized Ryobi  
Service Centers.  
You are responsible for presenting your small  
off-road engine to a Ryobi 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.  
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.  
If you have any questions regarding your warranty  
rights and responsibilities, you should call  
1-800-345-8746.  
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.  
27  
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LIMITED TWO-YEAR WARRANTY  
RYOBI OUTDOOR PRODUCTS warrants each new  
ALL IMPLIED WARRANTIES ARE LIMITED IN  
DURATION TO THE TWO (2) YEAR WARRANTY  
PERIOD OR NINETY (90) DAYS FOR PRODUCTS  
USED FOR ANY COMMERCIAL PURPOSE.  
RYOBI Product for two (2) years according to the  
following terms.  
This warranty extends to the original retail purchaser  
only and commences on the date of original retail  
purchase.  
ACCORDINGLY, ANY SUCH IMPLIED WARRANTIES  
INCLUDING MERCHANTABILITY, FITNESS FOR A  
PARTICULAR PURPOSE, OR OTHERWISE, ARE  
DISCLAIMED IN THEIR ENTIRETY AFTER THE  
EXPIRATION OF THE APPROPRIATE TWO-YEAR  
OR NINETY DAY WARRANTY PERIOD. RYOBIS  
OBLIGATION UNDER THIS WARRANTY, IS STRICTLY  
AND EXCLUSIVELY LIMITED TO THE REPAIR OR  
REPLACEMENT OF DEFECTIVE PARTS, AND ROP  
DOES NOT ASSUME OR AUTHORIZE ANYONE TO  
ASSUME FOR THEM ANY OTHER OBLIGATION.  
SOME STATES DO NOT ALLOW LIMITATIONS ON  
HOW LONG AN IMPLIED WARRANTY LASTS, SO  
THE ABOVE LIMITATION MAY NOT APPLY TO YOU.  
Any part of the RYOBI Product manufactured or  
supplied by RYOBI and found in the reasonable  
judgement of RYOBI to be defective in material or  
workmanship will be repaired or replaced by an  
authorized RYOBI service dealer without charge for  
parts and labor.  
The RYOBI Product including any defective part must  
be returned to an authorized service dealer within the  
warranty period. The expense of delivering the RYOBI  
Product to the dealer for warranty work and the  
expense of returning it back to the owner after repair  
or replacement will be paid for by the owner. RYOBIs  
responsibility in respect to claims is limited to making  
the required repairs or replacements and no claim of  
breach of warranty shall be cause for cancellation or  
rescission of the contract of sale of any RYOBI  
Product. Proof of purchase will be required by the  
dealer to substantiate any warranty claim. All warranty  
work must be performed by an authorized RYOBI  
service dealer.  
RYOBI ASSUMES NO RESPONSIBILITY FOR  
INCIDENTAL, CONSEQUENTIAL OR OTHER  
DAMAGES INCLUDING, BUT NOT LIMITED TO  
EXPENSE OF RETURNING THE RYOBI PRODUCT  
TO AN AUTHORIZED SERVICE DEALER AND  
EXPENSE OF DELIVERING IT BACK TO THE  
OWNER, MECHANICS TRAVEL TIME, TELEPHONE  
OR TELEGRAM CHARGES, RENTAL OF A LIKE  
PRODUCT DURING THE TIME WARRANTY SERVICE  
IS BEING PERFORMED, TRAVEL, LOSS OR DAMAGE  
TO PERSONAL PROPERTY, LOSS OF REVENUE,  
LOSS OF USE OF THE PRODUCT, LOSS OF TIME,  
OR INCONVENIENCE. SOME STATES DO NOT  
ALLOW THE EXCLUSION OR LIMITATION OF  
INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO  
THE ABOVE LIMITATION OR EXCLUSION MAY NOT  
APPLY TO YOU.  
This warranty is limited to ninety (90) days from the  
date of original retail purchase for any RYOBI Product  
that is used for rental or commercial purposes, or any  
other income-producing purpose.  
This warranty does not cover any RYOBI Product that  
has been subject to misuse, neglect, negligence, or  
accident, or that has been operated in any way  
contrary to the operating instructions as specified in  
the RYOBI Operators Manual. This warranty does not  
apply to any damage to the RYOBI Product that is the  
result of improper maintenance or to any RYOBI  
Product that has been altered or modified so as to  
adversely affect the product's operation, performance  
or durability or that has been altered or modified so as  
to change its intended use. The warranty does not  
extend to repairs made necessary by normal wear or  
by the use of parts or accessories which are either  
incompatible with the RYOBI Product or adversely  
affect its operation, performance or durability.  
This warranty gives you specific legal rights, and you  
may also have other rights which vary from state to  
state.  
This warranty applies to all RYOBI Products  
manufactured by RYOBI and sold in the United States  
and Canada.  
To locate your nearest service dealer dial  
1-800-345-8746 in the United States or  
1-800-265-6778 in Canada.  
In addition, this warranty does not cover:  
A. Tune-ups - Spark Plugs, Carburetor Adjustments,  
Filters  
B. Wear items - Bump Knobs, Outer Spools,  
Cutting Line, Inner Reels, Starter Pulley,  
Starter Ropes, Drive Belts  
RYOBI OUTDOOR PRODUCTS  
550 N. 54th Street  
Chandler, AZ 85226 U.S.A.  
RYOBI reserves the right to change or improve the  
design of any RYOBI Product without assuming  
any obligation to modify any product previously  
manufactured.  
RYOBI CANADA INC.  
275 Industrial Rd  
Cambridge, Ontario N1R 6K2 CANADA  
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.  
FOR QUESTIONS CALL 1-800-345-8746 IN U.S.  
OR 1-800-265-6778 IN CANADA  
OPERATORS MANUAL PART NO. 182211  
PRINTED IN U.S.A.  
REV. A (7922)  
12/98  
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