Ryobi Blower RY08576 User Guide

OPERATOR’S MANUAL  
BACKPACK BLOWER  
RY08574/RY08576  
Your blower has been engineered and manufactured to our high standard for dependability, ease of operation, and operator  
safety. When properly cared for, it will give you years of rugged, trouble-free performance.  
WARNING: To reduce the risk of injury, the user must read and understand the operator’s manual before using  
this product.  
Thank you for your purchase.  
SAVE THIS MANUAL FOR FUTURE REFERENCE  
 
GENERAL SAFETY RULES  
Keep firm footing and balance. Do not overreach. Over-  
reaching can result in loss of balance or exposure to hot  
surfaces.  
WARNING:  
Read and understand all instructions. Failure to follow  
all instructions listed below may result in electric shock,  
fire and/or carbon monoxide poisoning which will cause  
death or serious personal injury.  
Never operate the unit without a spark arrestor screen;  
this screen is located inside the muffler.  
Product users on United States Forest Service land, and  
in some states, must comply with fire prevention regu-  
lations. This product is equipped with a spark arrestor;  
however, other user requirements may apply. Check with  
the federal, state, or local authorities in your area.  
Do not allow children or untrained individuals to use this  
unit.  
Never start or run the engine inside a closed area; breath-  
ing exhaust fumes can kill.  
Before storing, allow the engine to cool.  
WeareyeprotectionwhichismarkedtocomplywithANSI  
Z87.1 as well as hearing protection when operating this  
equipment.  
Use only Ryobi replacement parts and accessories. Fail-  
ure to do so may cause poor performance or possible  
injury.  
Keep all bystanders, children, and pets at least 50 feet  
(15 m) away.  
Maintain the unit per maintenance instructions in this  
operator’s manual.  
Wear heavy long pants, boots, and gloves. Do not wear  
loose fitting clothing, short pants, jewelry of any kind, or  
go barefoot.  
Inspect the unit before each use for loose fasteners, fuel  
leaks, etc. Replace damaged parts.  
SERVICE  
To reduce the risk of injury associated with objects being  
drawn into rotating parts, do not wear loose clothing,  
scarves, neck chains, and the like. Secure long hair so it  
is above shoulder level to prevent entanglement in any  
rotating parts.  
Before cleaning, repairing, or inspecting, shut off the  
engine and make certain all moving parts have stopped.  
Disconnect the spark plug wire, and keep the wire away  
from the plug to prevent starting.  
Service on the blower must be performed by qualified  
repair personnel only. Service or maintenance performed  
by unqualified personnel could result in injury to the user  
or damage to the product.  
Do not operate this unit when you are tired, ill, or under  
the influence of alcohol, drugs, or medication.  
Do not operate in poor lighting.  
Keep all parts of your body away from any moving parts  
and all hot surfaces of the unit.  
Use only identical replacement parts when servicing the  
blower. Use of unauthorized parts may create a risk of  
serious injury to the user, or damage to the product.  
Wear a face filter mask in dusty conditions to reduce the  
risk of injury associated with the inhalation of dust.  
Checktheworkareabeforeeachuse. Removeallobjects  
such as rocks, broken glass, nails, wire, or string which  
can be thrown or become entangled in the machine.  
3
 
SPECIFIC SAFETY RULES  
Select bare ground, stop engine, and allow to cool before  
refueling.  
To reduce the risk of hearing loss associated with sound  
level(s), hearing protection is required.  
Loosen fuel cap slowly to release pressure and to keep  
fuel from escaping around the cap.  
To reduce the risk of injury associated with contacting  
rotating parts, stop the engine before installing or  
removing attachments. Do not operate without guard(s)  
in place. Always disconnect the spark plug before  
performing maintenance or accessing any movable  
parts.  
Tighten the fuel cap securely after refueling.  
Wipe spilled fuel from the unit. Move 30 feet away from  
refueling site before starting engine.  
Never attempt to burn off spilled fuel under any circum-  
stances.  
Do not point the blower nozzle in the direction of people  
or pets.  
Store fuel in a cool, well-ventilated area, safely away from  
Never run the unit without the blower tubes installed.  
Never place objects inside the blower tubes.  
spark and/or flame-producing equipment.  
Store fuel in containers specifically designed for this  
Never use for spreading chemicals, fertilizers, toxic sub-  
stances, or any other hazardous chemical.  
purpose.  
Only refuel outdoors and do not smoke while refueling.  
Always hold the blower in your right hand. Refer to the  
Operation section later in this manual for additional infor-  
mation.  
Add fuel before starting the engine. Never remove the cap  
of the fuel tank or add fuel while the engine is running or  
when the engine is hot.  
If fuel is spilled, do not attempt to start the engine but  
move the machine away from the area of spillage and  
avoid creating any source of ignition until fuel vapors  
have dissipated.  
REFUELING  
Fuel is highly flammable. Take precautions when using  
to reduce the chance of serious personal injury.  
Empty fuel tank and restrain the unit from moving before  
transporting in a vehicle.  
Replace all fuel tank and container caps securely.  
When draining the fuel tank, use an approved fuel storage  
To reduce the risk of fire and burn injury, handle fuel with  
care. It is highly flammable.  
container while in a well-ventilated area.  
Save these instructions. Refer to them frequently and use  
them to instruct others who may use this tool. If you loan  
someone this tool, loan them these instructions also.  
Do not smoke while handling fuel.  
Mix and store fuel in a container approved for gasoline.  
Mix fuel outdoors where there are no sparks or flames.  
4
 
SYMBOLS  
Some of the following symbols may be used on this tool. Please study them and learn their meaning. Proper interpre-  
tation of these symbols will allow you to operate the tool better and safer.  
SYMBOL  
NAME  
Safety Alert  
DESIGNATION/EXPLANATION  
Precautions that involve your safety.  
To reduce the risk of injury, user must read and understand  
operator’s manual before using this product.  
Read The Operator’s Manual  
Eye and Hearing Protection  
Wear eye protection which is marked to comply with ANSI Z87.1  
as well as hearing protection when  
operating this equipment.  
Failure to keep long hair away from the air inlet could result in  
personal injury.  
Long Hair  
Failure to keep loose clothing from being drawn into air intake  
could result in personal injury.  
Loose Clothing  
Use unleaded gasoline intended for motor vehicle use with an  
octane rating of 87 [(R + M)/2] or higher. This product is powered  
by a 2-cycle engine and requires pre-mixing gasoline and 2-cycle  
oil.  
Gasoline and Oil  
5
 
SYMBOLS  
The following signal words and meanings are intended to explain the levels of risk associated with this product.  
SYMBOL  
SIGNAL  
MEANING  
Indicates an imminently hazardous situation, which, if not avoided, will  
result in death or serious injury.  
DANGER:  
Indicates a potentially hazardous situation, which, if not avoided, could  
result in death or serious injury.  
WARNING:  
CAUTION:  
Indicates a potentially hazardous situation, which, if not avoided, may  
result in minor or moderate injury.  
(Without Safety Alert Symbol) Indicates a situation that may result in  
property damage.  
CAUTION:  
SERVICE  
WARNING:  
Servicing requires extreme care and knowledge and should  
be performed only by a qualified service technician. For  
service we suggest you return the product to your nearest  
AUTHORIZED SERVICE CENTER for repair. When servic-  
ing, use only identical replacement parts.  
To avoid serious personal injury, do not attempt to use this  
product until you read thoroughly and understand com-  
pletely the operator’s manual. If you do not understand  
the warnings and instructions in the operator’s manual,  
do not use this product. Call Ryobi customer service for  
assistance.  
WARNING:  
The operation of any power tool can result in foreign objects being thrown into your eyes, which can re-  
sult in severe eye damage. Before beginning power tool operation, always wear safety goggles or safety  
glasses with side shields and, when needed, a full face shield. We recommend Wide Vision Safety Mask  
for use over eyeglasses or standard safety glasses with side shields. Always use eye protection which is  
marked to comply with ANSI Z87.1.  
SAVE THESE INSTRUCTIONS  
6
 
FEATURES  
PRODUCT SPECIFICATIONS  
Weight .....................................................................................................................................................................11.75 lbs.  
Engine displacement....................................................................................................................................................25.4cc  
Air Velocity:  
MPH...............................................................................................................................................................................180  
CFM ...............................................................................................................................................................................420  
HARNESS HEIGHT  
ADJUSTMENTS  
STRAIGHT TUBE  
(UPPER TUBE)  
ENGINE  
SHOULDER  
STRAP  
ELBOW  
MESH  
BACKING  
ENGINE  
SWITCH  
CABLE TIE  
WAIST  
STRAP  
BELLOWS  
THROTTLE  
TRIGGER  
NOZZLE  
(LOWER TUBE)  
THROTTLE CONTROL  
HANDLE  
TUBE CLAMP(S)  
THROTTLE CONTROL HANDLE TUBE  
(UPPER TUBE)  
Fig. 1  
7
 
FEATURES  
KNOW YOUR BLOWER  
CRUISE CONTROL/THROTTLE LOCK  
See Figure 1.  
The cruise control (throttle lock) feature allows the user to  
operate the blower without holding the throttle trigger.  
The safe use of this product requires an understanding of  
the information on the tool and in this operator’s manual as  
well as a knowledge of the project you are attempting. Before  
use of this product, familiarize yourself with all operating  
features and safety rules.  
MESH BACKING  
The blower comes equipped with a mesh backing which  
aids in user comfort.  
MOTOR  
ADJUSTABLE HARNESS AND WAIST STRAPS  
The blower comes with fully adjustable harness and waist  
straps to ensure user comfort and ease of operation.  
The blower has a powerful 25.4cc engine with sufficient  
power to handle tough jobs.  
THROTTLE TRIGGER  
The blower can be operated at any speed between idle and  
full throttle.  
ADJUSTABLE THROTTLE CONTROL HANDLE  
Easily adjust throttle control handle by loosening handle  
knob to position handle in desired location.  
ASSEMBLY  
UNPACKING  
This product requires assembly.  
WARNING:  
If any parts are damaged or missing do not operate  
this tool until the parts are replaced. Failure to heed this  
warning could result in serious personal injury.  
Carefully remove the tool and any accessories from the  
box. Make sure that all items listed in the packing list are  
included.  
Inspect the tool carefully to make sure no breakage or  
damage occurred during shipping.  
Do not discard the packing material until you have care-  
WARNING:  
Do not attempt to modify this tool or create accessories not  
recommended for use with this tool. Any such alteration  
or modification is misuse and could result in a hazardous  
condition leading to possible serious personal injury.  
fully inspected and satisfactorily operated the tool.  
If any parts are damaged or missing, please call  
1-800-860-4050 for assistance.  
PACKING LIST  
Backpack Blower  
Bellows  
WARNING:  
To prevent accidental starting that could cause serious  
personal injury, always disconnect the engine spark plug  
wire from the spark plug when assembling parts.  
Cable Tie (2)  
Clamp Screws (3)  
Elbow  
Nozzle Tube (Lower Tube)  
Straight Tube (Upper Tube)  
Throttle Control Handle Tube (Upper Tube)  
Tube Clamp (3)  
2-Cycle Engine Oil  
Operator’s Manual  
NOTE: Read and remove all hang tags and store with your  
operator’s manual.  
8
 
ASSEMBLY  
WARNING:  
Disconnect the spark plug wire before assembling parts.  
Failure to do so could result in possible serious personal  
injury.  
ASSEMBLING THE BLOWER TUBES  
See Figures 2 - 4.  
Place a clamp on blower past the raised tabs. Assemble  
the elbow tube onto blower by aligning raised tabs on  
blower with slots on elbow. Tighten clamp onto elbow.  
ELBOW  
TUBE  
Attach bellows onto elbow tube by placing a clamp on  
one end of the bellows then press bellows onto elbow  
tube. Tighten clamp.  
BELLOWS  
TUBE CLAMP  
Place a clamp on other end of bellows. Press bellows  
onto throttle control handle tube. Tighten clamp.  
NOTE: The position of the throttle control handle may be  
adjusted for comfort after the blower is strapped onto the  
operator’s back.  
THROTTLE CONTROL  
HANDLE TUBE (UPPER TUBE)  
Fig. 2  
THROTTLE CONTROL  
HANDLE TUBE (UPPER TUBE)  
Join the straight upper tube and nozzle together by align-  
ing raised locking tabs on straight upper tube with the  
raised locking slots on nozzle and twist to secure.  
Assemble the connected lower tubes to the throttle  
control handle tube by aligning raised locking tabs on  
the throttle control handle tube with the raised locking  
slots on connected lower tubes by twisting to secure.  
NOTE: Check all locking connections after initial run to  
ensure they are tightly secured.  
NOZZLE  
Hold the throttle cable against the bellows and install the  
cable ties. Cable ties should be tight enough to retain  
the throttle cable to the bellows but still allow for move-  
ment.  
UPPER TUBE  
Fig. 3  
THROTTLE  
CONTROL  
HANDLE TUBE  
(UPPER TUBE)  
THROTTLE  
CABLE  
CABLE TIE  
Fig. 4  
9
 
ASSEMBLY  
To adjust waist strap assembly:  
Waist strap should be tightened or loosened until adjusted  
CAUTION:  
to a comfortable operating position.  
Make all adjustments to the harness straps before start-  
ing the blower to avoid the possibility of injury.  
ADJUSTING THROTTLE CONTROL HANDLE  
See Figure 5.  
ADJUSTING HARNESS AND WAIST STRAPS Loosen throttle control handle locking screw by twisting  
counterclockwise.  
Straps should be adjusted to a comfortable position before  
Move throttle control handle to desired position and  
starting the blower.  
secure locking screw by twisting clockwise.  
To adjust harness strap assembly:  
Blower should be in operating position before adjusting  
the harness straps. Slip arm through harness strap and  
onto shoulder, then repeat for the other shoulder.  
There are three possible height adjustment positions that  
can be used to easily adjust harness.  
THROTTLE  
CONTROL HANDLE  
Slip top buckle of harness from adjustment slot and  
position to desired height location.  
Tighten (pull down on strap) or loosen (lift up on tab of  
strap buckle) each harness strap as needed, until each  
is adjusted to a comfortable operating position.  
LOCKING  
SCREW  
Chest strap should be tightened or loosened until adjusted  
Fig. 5  
to a comfortable operating position.  
OPERATION  
MIXING THE FUEL  
WARNING:  
This product is powered by a 2-cycle engine and requires  
pre-mixing gasoline and 2-cycle oil. The mixture should be  
at a 50:1 ratio, using Premium Exact Mix™ 2-cycle engine  
oil. If Premium Exact Mix™ 2-cycle engine oil is not avail-  
able, use a high quality synthetic 2-cycle engine oil, mixed  
at a 50:1 ratio. See chart later in this section.  
To mix the fuel:  
Do not allow familiarity with tools to make you care-  
less. Remember that a careless fraction of a second is  
sufficient to inflict serious injury.  
WARNING:  
Always wear safety goggles or safety glasses with side  
shields when operating power tools. Failure to do so  
could result in objects being thrown into your eyes  
resulting in possible serious injury.  
Use a clean container that is approved for use with gaso-  
line.  
Mix the Premium Exact Mix™ 2-cycle engine oil with  
unleaded gasoline in the container, according to the  
instructions on the oil package.  
APPLICATIONS  
You may use this tool for the purposes listed below:  
NOTE: This engine is certified to operate on unleaded gaso-  
line intended for automotive use with an octane rating of 87  
[(R + M) / 2] or higher. Do not use automotive oil or 2-cycle  
outboard oil.  
NOTE: Premium Exact Mix™ fuel mixture will stay fresh up  
to 30 days. DO NOT mix quantities larger than usable in a  
30 day period.  
Clear leaves and other debris from your lawn  
Keep decks and driveways free from leaves and pine  
needles  
WARNING:  
PREMIUM EXACT MIX™ (50:1)  
Gasoline is extremely flammable and explosive. A fire or  
explosion from gasoline will burn you and others.  
GASOLINE  
OIL  
1 gallon (US)  
1 Liter  
2.6 oz.  
20 cc (20 ml)  
10  
 
OPERATION  
Set the choke lever to the START position.  
FILLING THE TANK  
WARNING:  
Always stop the engine before filling the fuel tank. Never  
add fuel to a machine with a running or hot engine. Move  
atleast30ft.fromtherefuelingareabeforestartingengine.  
Do not smoke while filling the tank.  
NOTE: If restarting a warm engine, leave the choke lever  
in the RUN position.  
Pull the starter cord until the engine runs.  
Return the starter cord gently to the starter housing. Do  
not allow the rope to snap back.  
Allow the engine to run for 15 seconds to warm up before  
using.  
Cleanthesurfacearoundthefuelcaptopreventcontami-  
Engage the throttle trigger to operate.  
To stop the blower:  
nation.  
Loosen the fuel cap slowly, by turning it counter-  
Release the throttle trigger.  
clockwise.  
Press and hold the engine switch to the “O” or STOP posi-  
Pour the fuel mixture carefully into the tank.  
tion.  
Clean and inspect the fuel cap gasket before replacing  
To remove blower:  
the fuel cap.  
Move harness straps off the shoulders. Let straps slide  
Replace the fuel cap and tighten it by turning it clock-  
down arms.  
wise.  
Grasp the straps and lower the blower to the ground.  
Wipe spilled fuel from the product.  
Move at least 30 ft. away from refueling area before start-  
ing the product.  
ENGINE  
SWITCH  
WARNING:  
THROTTLE  
TRIGGER  
Check for fuel leaks. If you find any leaks, correct the  
problem before using the product.  
WARNING:  
CRUISE CONTROL  
(THROTTLE LOCK)  
A leaking fuel cap is a fire hazard and must be replaced  
immediately.  
Fig. 6  
STARTING AND STOPPING  
See Figures 6 - 7.  
CHOKE  
CHOKE  
LEVER  
NOTE: It is normal for smoke to be emitted from a new  
engine during first use.  
LEVER  
To start an engine that is cold or has run dry:  
START  
POSITION  
RUN  
Fill the fuel tank, if necessary. Always use the proper  
POSITION  
oil/gasoline mixture. See Mixing the Fuel on page 10.  
Disengage the cruise control lever.  
NOTE: Do not engage the throttle trigger during the  
starting process.  
Slowly push the primer bulb seven times.  
Fig. 7  
11  
 
OPERATION  
PROPER OPERATING POSITION  
WARNING  
Keep away from all hot surfaces of the blower. Failure to  
do so could result in possible serious personal injury.  
OPERATING THE BLOWER  
See Figure 8.  
Start the blower. Refer to Starting and Stopping earlier  
in this manual. Slip arm through harness strap and onto  
shoulder, then repeat for the other shoulder. Adjust the  
straps to a comfortable position. Refer to Adjusting Har-  
ness and Waist Straps earlier in this manual. Operate  
the blower from the right side as shown in illustration.  
To keep from scattering debris, blow around the outer  
edges of a debris pile. Never blow directly into the center  
of a pile.  
To reduce sound levels, limit the number of pieces of  
equipment used at any one time.  
Operate blower at the lowest possible throttle speed to  
do the job.  
Check your equipment before operation, especially the  
muffler, air intakes, and air filters.  
Use rakes and brooms to loosen debris before blowing.  
In dusty conditions, slightly dampen surfaces when water  
is available.  
Watch out for children, pets, open windows or freshly  
Fig. 8  
washed cars, and blow debris safely away.  
Use the nozzle for larger volume, so the air stream can  
work close to the ground.  
After using blowers or other equipment, CLEAN UP!  
Dispose of debris properly.  
CRUISE CONTROL/THROTTLE LOCK  
See Figure 9.  
The cruise control (throttle lock) can be used to operate the  
blower without holding the throttle trigger.  
CRUISE CONTROL  
(THROTTLE LOCK)  
To engage the cruise control/throttle lock:  
Pull cruise control lever back toward user, and stop at  
the desired throttle setting.  
To release the cruise control, push cruise control lever all  
THROTTLE TRIGGER  
the way toward the front of unit.  
Fig. 9  
12  
 
MAINTENANCE  
REPLACING AND CLEANING AIR FILTER  
See Figure 10.  
WARNING:  
A wet or dirty air filter can affect the way the engine starts,  
performs, and wears. The air filter should be checked and  
cleaned after 8 hours of operation. If working in dusty soil,  
check the air filter after each refueling.  
When servicing, use only identical replacement parts.  
Use of any other parts may create a hazard or cause  
product damage.  
For best performance, the air filter should be replaced once  
each year.  
WARNING:  
To clean the air filter:  
Always wear safety goggles or safety glasses with side  
shields during power tool operation or when blowing  
dust. If operation is dusty, also wear a dust mask.  
Loosen the knob on the air filter cover.  
Remove the cover.  
Lift the edge of the air filter carefully and peel it out.  
Wash the air filter with warm, soapy water.  
Rinse and squeeze to dry.  
WARNING:  
Before inspecting, cleaning, or servicing the machine,  
shut off engine, wait for all moving parts to stop, and  
disconnect spark plug wire and move it away from spark  
plug. Failure to follow these instructions can result in  
serious personal injury or property damage.  
Reinstall the air filter.  
NOTE: Make sure the filter is seated properly inside the  
cover. Installing the filter incorrectly will allow dirt to enter  
the engine, causing rapid engine wear.  
Reinstall the cover.  
Tighten knob to secure.  
GENERAL MAINTENANCE  
Avoid using solvents when cleaning plastic parts. Most  
plastics are susceptible to damage from various types of  
commercial solvents and may be damaged by their use. Use  
clean cloths to remove dirt, dust, oil, grease, etc.  
AIR FILTER  
KNOB  
WARNING:  
Do not at any time let brake fluids, gasoline, petroleum-  
based products, penetrating oils, etc., come in contact  
with plastic parts. Chemicals can damage, weaken or  
destroy plastic which may result in serious personal  
injury.  
Only the parts shown on the parts list are intended to be  
repaired or replaced by the customer. All other parts should  
be replaced at an Authorized Service Center.  
AIR FILTER COVER  
Fig. 10  
13  
 
MAINTENANCE  
SPARK ARRESTOR  
WARNING:  
The muffler is equipped with a spark arrestor screen inside  
muffler body. After extended use the screen can become  
dirty and the screen may need to be replaced by an autho-  
rized servicing dealer.  
A leaking fuel cap is a fire hazard and must be replaced  
immediately.  
SPARK PLUG  
This engine uses a Champion RCJ-6Y with 0.63 mm  
(0.025 in.) electrode gap. Use an exact replacement and  
replace annually.  
WARNING:  
To avoid a fire hazard, never run the blower without the  
spark arrestor in place.  
STORAGE (1 MONTH OR LONGER)  
Drain all fuel from the tank into a container approved for  
CLEANING THE EXHAUST PORT AND  
MUFFLER  
gasoline. Run engine until it stops.  
Clean all foreign material from the blower. Store it in a  
well-ventilatedplacethat isinaccessibletochildren.Keep  
away from corrosive agents such as garden chemicals  
and de-icing salts.  
Depending on the type of fuel used, the type and amount of  
oil used, and/or your operating conditions, the exhaust port,  
muffler, and/or spark arrestor screen may become blocked  
with carbon deposits. If you notice a power loss with your  
gas powered tool, you may need to remove these deposits  
to restore performance. We highly recommend that only  
qualified service technicians perform this service.  
Abide by all Federal and local regulations for the safe  
storage and handling of gasoline. Excess fuel should be  
used up in other 2-cycle engine powered equipment.  
FUEL CAP  
The fuel cap contains a non-serviceable filter and a check  
valve. A clogged fuel filter will cause poor engine per-  
formance. If performance improves when the fuel cap is  
loosened, the check valve may be faulty or filter clogged.  
Replace the fuel cap if required.  
14  
 
ACCESSORIES  
Look for these accessories at the service center:  
WARNING:  
ACCESSORIES  
Current attachments and accessories available  
for use with this tool are listed. Do not use any  
attachments or accessories not recommended by the  
manufacturer of this tool. The use of attachments or  
accessories not recommended can result in serious  
personal injury.  
Air Filter .........................................Power Care - AP04107  
Spark Plug.............................................Champion - RCJ4  
Fuel Cap.............................................................. AP04108  
2-Cycle Oil.......................... (2.6 FL. OZ - 76 ml) AR99G01  
TROUBLESHOOTING  
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM, CONTACT YOUR AUTHORIZED SERVICING DEALER.  
PROBLEM  
Engine fails to start  
CAUSE  
REMEDY  
No fuel in tank  
Fill tank.  
Spark plug shorted or fouled  
Replace spark plug.  
Replace spark plug.  
Spark plug is broken (cracked  
porcelain or electrodes broken)  
Ignition lead wire shorted, broken, or Replace lead wire or attach to spark  
disconnected from spark plug  
plug.  
Ignition inoperative  
Contact authorized service center.  
Engine hard to start  
Water in gasoline or stale fuel mixture Drain entire system and refill with fresh  
fuel.  
Too much oil in fuel mixture  
Engine is under or over choked  
Weak spark at spark plug  
Air filter clogged  
Drain and refill with correct mixture.  
Adjust choke as necessary.  
Contact authorized service center.  
Clean or replace air filter.  
Engine lacks power  
Engine overheats  
Insufficient oil in fuel mixture  
Mix fuel as described in starting  
instructions.  
15  
 
WARRANTY  
LIMITED WARRANTY STATEMENT  
A. Tune-ups – Spark Plugs, Carburetor, Carburetor  
Adjustments, Ignition, Filters  
Techtronic Industries North America, Inc., warrants to the  
original retail purchaser that this RYOBI® brand outdoor  
product is free from defect in material and workmanship  
and agrees to repair or replace, at Techtronic Industries  
North America, Inc.’s, discretion, any defective product  
free of charge within these time periods from the date of  
purchase.  
B. Wear items – Bump Knobs, Outer Spools, Cutting  
Lines, Inner Reels, Starter Pulleys, Starter Ropes, Drive  
Belts,Tines,FeltWashers,HitchPins,MulchingBlades,  
Blower Fans, Blower and Vacuum Tubes, Vacuum Bag  
and Straps, Guide Bars, Saw Chains  
Techtronic Industries North America, Inc., reserves the  
right to change or improve the design of any RYOBI® brand  
outdoorproductwithoutassuminganyobligationtomodify  
any product previously manufactured.  
Two years if the product is used for personal, family or  
household use;  
90 days, if used for any other purpose, such as  
commercial or rental.  
ALL IMPLIED WARRANTIES ARE LIMITED IN DURATION  
TO THE STATED WARRANTY PERIOD. 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, ONE-YEAR, OR NINETY-  
DAY WARRANTY PERIOD. TECHTRONIC INDUSTRIES  
NORTH AMERICA, INC.’S, OBLIGATION UNDER THIS  
WARRANTYISSTRICTLYANDEXCLUSIVELYLIMITEDTO  
THE REPAIR OR REPLACEMENT OF DEFECTIVE PARTS  
AND TECHTRONIC INDUSTRIES NORTH AMERICA,  
INC., 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. TECHTRONIC  
INDUSTRIES NORTH AMERICA, INC., ASSUMES NO  
RESPONSIBILITY FOR INCIDENTAL, CONSEQUENTIAL,  
OR OTHER DAMAGES INCLUDING, BUT NOT LIMITED  
TO, EXPENSE OF RETURNING THE PRODUCT TO AN  
AUTHORIZED RYOBI SERVICE CENTER AND EXPENSE  
OFDELIVERINGITBACKTOTHEOWNER, MECHANIC’S  
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 extends to the original retail purchaser  
only and commences on the date of the original retail  
purchase.  
Any part of this product found in the reasonable judgment  
ofTechtronicIndustriesNorthAmerica, Inc. tobedefective  
in material or workmanship will be repaired or replaced  
withoutchargeforpartsandlaborbyanauthorizedservice  
center for RYOBI® brand outdoor products (Authorized  
Ryobi Service Center).  
Theproduct,includinganydefectivepart,mustbereturned  
to an authorized RYOBI service center within the warranty  
period.Theexpenseofdeliveringtheproducttotheservice  
center for warranty work and the expense of returning it  
back to the owner after repair or replacement will be paid  
by the owner. Techtronic Industries North America, Inc.’s,  
responsibility in respect to claims is limited to making the  
required repairs or replacements and no claim of breach of  
warrantyshallbecauseforcancellationorrescissionofthe  
contractofsaleofanyRYOBI® brandoutdoorproduct.Proof  
of purchase will be required by the dealer to substantiate  
any warranty claim. All warranty work must be performed  
by an authorized service dealer.  
This warranty is limited to ninety (90) days from the date  
of original retail purchase for any RYOBI® brand outdoor  
product that is used for rental or commercial purposes, or  
any other income-producing purpose.  
This warranty does not cover any 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 this operator’s manual. This  
warranty does not apply to any damage to the product that  
is the result of improper maintenance or to any product  
that has been altered or modified. The warranty does not  
extendtorepairsmadenecessarybynormalwearorbythe  
use of parts or accessories which are either incompatible  
withtheRYOBI® brandoutdoorproductoradverselyaffect  
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.  
ThiswarrantyappliestoallRYOBI® brandoutdoorproducts  
manufacturedbyorforTechtronicIndustriesNorthAmerica,  
Inc., and sold in the United States and Canada.  
In addition, this warranty does not cover:  
To locate your nearest Authorized Ryobi Service Center,  
dial 1-800-860-4050.  
16  
 
WARRANTY  
THE FOLLOWING CALIFORNIA AIR RESOURCES BOARD (CARB) STATEMENT ONLY APPLIES  
TO MODEL NUMBERS REQUIRED TO MEET THE CARB REQUIREMENTS.  
TECHTRONIC INDUSTRIES NORTH AMERICA, INC., LIMITED WARRANTY  
FEDERAL AND CALIFORNIA EMISSION CONTROL SYSTEMS NON-ROAD AND SMALL  
OFF-ROAD ENGINES  
The U.S. Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and Techtronic Industries North America, Inc.,  
are pleased to explain the Emission Control System Warranty on your non-road or 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. In other states, new 2000 and later model  
year non-road engines must be designed, built, and equipped at the time of sale to meet the U.S. EPA regulations for small non-road engines.  
The non-road engine must be free from defects in materials and workmanship which cause it to fail to conform with U.S. EPA standards for  
the first two years of engine use from the date of sale to the ultimate purchaser. Techtronic Industries North America, Inc., must warrant the  
emission control system on your non-road or small off-road engine for the period of time listed above provided there has been no abuse,  
neglect, or improper maintenance of your non-road or small off-road engine.  
Your emission control system may include parts such as the carburetor or fuel injection system, the ignition system, and the catalytic con-  
verter. Also included may be hoses, belts and connectors, and other emission-related assemblies.  
Where a warrantable condition exists, Techtronic Industries North America, Inc., will repair your non-road or small off-road engine at no  
cost to you, including diagnosis (if the diagnostic work is performed at an authorized service center for RYOBI® brand outdoor products),  
parts, and labor.  
MANUFACTURER’S WARRANTY COVERAGE:  
The 1995 and later small off-road engines are warranted for two years in California. In other states, 1997 and later model year non-road  
engines are also warranted for two years. If any emission-related part on your engine is defective, the part will be repaired or replaced by  
Techtronic Industries North America, Inc., free of charge.  
OWNER’S WARRANTY RESPONSIBILITIES  
(a) As the non-road or small off-road engine owner, you are responsible for the performance of required maintenance listed in your operator’s  
manual. Techtronic Industries North America, Inc., recommends that you retain all receipts covering maintenance on your non-road or  
small off-road engine, but Techtronic Industries North America, Inc., cannot deny warranty solely for the lack of receipts or for your  
failure to ensure the performance of all scheduled maintenance. Any replacement part or service that is equivalent in performance and  
durability may be used in non-warranty maintenance or repairs, and shall not reduce the warranty obligations of the engine manufacturer.  
(b) As the non-road or small off-road engine owner, you should be aware, however, that Techtronic Industries North America, Inc., may deny you  
warranty coverage if your non-road or small off-road engine or a part has failed due to abuse, neglect, improper maintenance, or unap-  
proved modifications.  
(c) You are responsible for presenting your non-road or small off-road engine to an authorized service dealer 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 contact a Techtronic Industries North America,  
Inc., Customer Representative at 1-800-860-4050.  
COVERAGE:  
Techtronic Industries North America, Inc., warrants to the ultimate purchaser and each subsequent purchaser that your non-road or small  
off-road engine will be designed, built, and equipped at the time of sale, to meet all applicable regulations. Techtronic Industries North  
America, Inc., also warrants to the initial purchaser and each subsequent purchaser that your non-road or small off-road engine is free from  
defects in materials and workmanship which cause the engine to fail to conform with applicable regulations for a period of two years. The  
1995 and later small off-road engines are warranted for two years in California. In all other states for 1997 and later model years, EPA requires  
manufacturers to warrant non-road engines for two years. These warranty periods will begin on the date the non-road or small off-road  
engine is purchased by the initial purchaser. If any emission-related part on your engine is defective, the part will be replaced by Techtronic  
Industries North America, Inc., at no cost to the owner.  
Techtronic Industries North America, Inc., shall remedy warranty defects at any authorized RYOBI engine dealer or warranty sta-  
tion. Any authorized work done at an authorized dealer or warranty station shall be free of charge to the owner if such work deter-  
mines that a warranted part is defective. Any manufacturer-approved or equivalent replacement part may be used for any warranty  
maintenance or repairs on emission-related parts, and must be provided free of charge to the owner if the part is still under warranty. Tech-  
tronics North America, Inc., is liable for damages to other engine components caused by the failure of a warranted part still under warranty.  
The California Air Resources Board’s Emission Warranty Parts List specifically defines the emission-related warranted parts. (EPA’s regula-  
tions do not include a parts list, but EPA considers emission-related warranted parts to include all the parts listed below.)  
These warranted parts are: Carburetor, Spark Plug, Ignition, Air Filter, and Fuel Filter.  
MAINTENANCE REQUIREMENTS  
The owner is responsible for the performance of the required maintenance as defined by Techtronic Industries North America, Inc., in the  
operator’s manual.  
LIMITATIONS  
The Emission Control Systems Warranty shall not cover any of the following:  
(a) repair or replacement required because of misuse or neglect, lack of required maintenance, repairs improperly performed, or replace-  
ments not conforming to Techtronic Industries North America, Inc., specifications that adversely affect performance and/or durability,  
and alterations or modifications not recommended or approved in writing by Techtronic Industries North America, Inc., and  
(b) replacement of parts and other services and adjustments necessary for required maintenance at and after the first scheduled replace-  
ment point.  
The Emissions Compliance Period referred to on the Emissions Compliance label indicates the number of operating hours for which the  
engine has been shown to meet Federal emission requirements. Category C=50 hours, B=125 hours, and A=300 hours.  
17  
 
WARRANTY  
THIS PRODUCT WAS MANUFACTURED WITH A CATALYST MUFFLER  
Congratulations! You have made an investment toward protecting the environment. In order to maintain this product’s  
original emission level, please refer to the maintenance section below.  
EMISSIONS MAINTENANCE SCHEDULE AND WARRANTED PARTS LIST  
Emissions Parts  
Inspect Before  
Each Use  
Clean Every  
5 Hours  
Replace  
Every 25 Hours  
or Yearly  
Clean Every  
25 Hours  
or Yearly  
Replace Every  
50 Hours  
CATALYTIC MUFFLER ASSEMBLY ................................................................................................................... X  
AIR FILTER ASSY  
includes:  
Filter ................................................................. X............................. X  
SPARK SCREEN ..................................................................................................................X  
CARBURETOR ASSY  
includes:  
Heat Dam  
Gaskets  
FUEL TANK ASSY  
includes:  
Fuel Lines........................ X  
Fuel Cap.......................... X  
Fuel Filter  
IGNITION ASSY  
includes:  
Spark Plug........................................................................................ X  
ALL EMISSIONS RELATED PARTS ARE WARRANTED FOR TWO YEARS OR FOR THE PERIOD OF TIME PRIOR TO  
THE PARTS FIRST SCHEDULED REPLACEMENT WHICHEVER COMES FIRST.  
CALL US FIRST  
For any questions about operating or maintaining your product,  
call the Ryobi® Help Line!  
Your product has been fully tested prior to shipment to ensure  
your complete satisfaction.  
18  
 
NOTES  
19  
 
OPERATOR’S MANUAL  
BACKPACK BLOWER  
RY08574/RY08576  
WARNING:  
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  
• SERVICE  
Now that you have purchased your tool, should a need ever exist for repair parts or service,  
simply contact your nearest Authorized Service Center. Be sure to provide all pertinent  
facts when you call or visit. Please call 1-800-860-4050 for your nearest Authorized  
list of Authorized Service Centers.  
• MODEL NO. AND SERIAL NO.  
The model number of this tool will be found on a plate attached to the motor housing.  
Please record the model number and serial number in the space provided below.  
• HOW TO ORDER REPAIR PARTS  
When ordering repair parts, always give the following information:  
• MODEL NUMBER  
• SERIAL NUMBER  
Ryobi® is a registered trademark of Ryobi Limited used under license.  
TECHTRONIC INDUSTRIES NORTH AMERICA, INC.  
1428 Pearman Dairy Road  
Anderson, SC 29625  
Phone 1-800-860-4050  
983000-907  
08-29-06 (REV:02)  
 

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