Ryobi | RY10520 | Operator`s manual | Ryobi RY10520 Operator`s manual

OPERATOR’S MANUAL
RY10520 / 20 in. 46cc Chain Saw
RY10518 / 18 in. 46cc Chain Saw
(ALL VERSIONS)
ENGINE/EVAP. FAMILY: *HCPS.0464AC
Your chain saw has been engineered and manufactured to Ryobi’s 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 buying a Ryobi product.
SAVE THIS MANUAL FOR FUTURE REFERENCE
Cette scie à chaîne a été conçue et fabriquée conformément aux
strictes normes de fiabilité, simplicité d’emploi et sécurité d’utilisation
de Ryobi. Correctement entretenue, elle vous donnera des années
de fonctionnement robuste et sans problème.
Su motosierra ha sido diseñada y fabricada de conformidad con las
estrictas normas de Ryobi para brindar fiabilidad, facilidad de uso
y seguridad para el operador. Con el debido cuidado, le brindará
muchos años de sólido y eficiente funcionamiento.
AVERTISSEMENT : Pour réduire les risques de
blessures, l’utilisateur doit lire et veiller à bien comprendre le
manuel d’utilisation avant d’employer ce produit.
ADVERTENCIA: Para reducir el riesgo de lesiones,
el usuario debe leer y comprender el manual del operador antes
de usar este producto.
Merci d’avoir acheté un produit Ryobi.
CONSERVER CE MANUEL POUR
FUTURE RÉFÉRENCE
Le agradecemos la compra de un producto Ryobi.
GUARDE ESTE MANUAL PARA
­FUTURAS CONSULTAS
TABLE OF CONTENTS
TABLE DES MATIÈRES / ÍNDICE DE CONTENIDO
Introduction........................................................................................................................................2
Introduction / Introducción
 General Safety Rules...................................................................................................................... 3-4
Règles de sécurité générales / Reglas de seguridad generales
 Specific Safety Rules..................................................................................................................... 4-5
Règles de sécurité particulières / Reglas de seguridad específicas

Symbols......................................................................................................................................... 6-7
Symboles / Símbolos
 Glossary of Terms...............................................................................................................................8
Glossaire / Glosario de términos
Features........................................................................................................................................ 9-10
Caractéristiques / Características
Assembly..........................................................................................................................................11
Assemblage / Armado
Operation.................................................................................................................................... 11-24
Utilisation / Funcionamiento
Maintenance............................................................................................................................... 25-37
Entretien / Mantenimiento
 Bar and Chain Combinations...........................................................................................................38
Vue éclatée et liste des pièces / Vista desarrollada y lista de piezas
Troubleshooting.......................................................................................................................... 38-39
Dépannage / Corrección de problemas
Warranty..................................................................................................................................... 40-41
Garantie / Garantía
 Parts Ordering and Service................................................................................................ Back Page
Commande de pièces et réparation / Pedidos de piezas y servicio.......................................................... Page arrière / Pág. posterior
INTRODUCTION
INTRODUCTION / INTRODUCCIÓN
This product has many features for making its use more pleasant and enjoyable. Safety, performance,
and dependability have been given top priority in the design of this product making it easy to maintain
and operate.
***
Ce produit offre de nombreuses fonctions destinées à rendre son utilisation plus plaisante et satisfaisante. Lors de la conception de ce produit, l’accent a été mis sur la sécurité, les performances et la
fiabilité, afin d’en faire un outil facile à utiliser et à entretenir.
***
Este producto ofrece numerosas características para hacer más agradable y placentero su uso. En el
diseño de este producto se ha conferido prioridad a la seguridad, el desempeño y la fiabilidad, por lo
cual se facilita su manejo y mantenimiento.
Page 2
GENERAL SAFETY RULES
WARNING:
Read and understand all instructions. Failure
to follow all instructions listed below, may result
in electric shock, fire and/or serious personal
injury.
READ ALL INSTRUCTIONS

Know your tool. Read the operator’s manual
carefully. Learn the saw’s applications and
limitations as well as the specific potential
hazards related to this tool.
Kickback may occur when the nose or tip of
the guide bar touches an object, or when the
wood closes in and pinches the saw chain in
the cut. Tip contact in some cases may cause a
lightning-fast reverse reaction, kicking the guide
bar up and back toward the operator. Pinching
the saw chain along the top of the guide bar
may push the guide bar rapidly back toward the
operator. Either of these reactions may cause
you to lose control of the saw, which could result
in serious personal injury. Do not rely exclusively
upon the safety devices built into the saw. As a
chain saw user, you should take several steps
to keep your cutting jobs free from accident or
injury.
• With a basic understanding of kickback,
you can reduce or eliminate the element
of surprise. Sudden surprise contributes to
accidents.
• Keep a good firm grip on the saw with both
hands when the engine is running. Place
your right hand on the rear handle and
your left hand on the front handle with your
thumbs and fingers encircling the chain saw
handles. A firm grip together with a stiff left
arm will help you maintain control of the saw
if kickback occurs.
• Make sure that the area in which you are
cutting is free from obstructions. DO NOT
let the nose of the guide bar contact a log,
branch, fence, or any other obstruction that
could be hit while you are operating the
saw.
• Cut at high engine speeds. Always cut
with the engine running at full speed. Fully
squeeze the throttle trigger and maintain a
steady cutting speed.
• Do not overreach or cut above chest height.
• Follow the manufacturer’s sharpening and
maintenance instructions for the saw chain.
• Only use replacement bars and chains
specified by the manufacturer or the
equivalent.

Do not operate a chain saw with one
hand. Serious injury to the operator, helpers,
bystanders, or any combination of these
persons may result from one-handed operation.
A chain saw is intended for two-handed use.

Do not operate a chain saw when you are
fatigued. Fatigue causes carelessness. Be more
cautious before rest periods and towards the
end of your shift. Never operate a chain saw
when you are tired or under the influence of
medication, drugs, or alcohol.

Use safety footwear. Wear snug-fitting
clothing, ­protective gloves, and eye, hearing,
and head protection devices.
 Heavy protective clothing may increase
operator fatigue, which could lead to
heat stroke. During weather that is hot and
humid, heavy work should be scheduled for
early morning or late afternoon hours when
temperatures are cooler.

Do not stand on any unstable surface while
using the chain saw, that includes ladders,
scaffolds, trees, etc.

Use caution when handling fuel. Move the
chain saw at least 30 feet from the fueling point
before starting the engine.

Do not allow other persons to be near the
chain saw when starting or cutting with the
chain saw. Keep bystanders and animals out
of the work area.

Do not start cutting until you have a clear
work area, secure footing, and a planned
retreat path from the falling tree.

Keep all parts of your body away from the
saw chain when the engine is running.

Always carry the chain saw with the engine
stopped and the chain brake engaged, the
Page 3 — English
GENERAL SAFETY RULES
guide bar and saw chain to the rear, and the
muffler away from your body. When transporting
the chain saw, use the appropriate guide bar
scabbard.

Do not operate a chain saw that is damaged,
improperly adjusted, or not completely and
securely assembled. Be sure that the saw chain
stops moving when the throttle control trigger
is released.

Shut off the engine before setting the chain
saw down. Do not leave the engine running
unattended. As an additional safety precaution,
apply the chain brake prior to setting down the
saw.

Use extreme caution when cutting small-size
brush and saplings because slender material
may catch the saw chain and be whipped
toward you or pull you off balance.

When cutting a limb that is under tension,
be alert for springback so that you will not be
struck when the tension in the wood fibers is
released.

Keep the handles dry, clean, and free of oil or
fuel ­mixture.

Beware of carbon monoxide poisoning.
Operate the chain saw only in well-ventilated
areas.

Do not operate a chain saw in a tree unless
you have been specifically trained to do so.

Do not cut from a ladder; this is extremely
dangerous.

All chain saw service, other than the items listed
in the instruction manual and all maintenance,
should be performed by competent chain saw
service personnel. (For example, if improper
tools are used to remove the flywheel or if an
improper tool is used to hold the flywheel in
order to remove the clutch, structural damage
to the flywheel could occur and subsequently
could cause the flywheel to burst.)

Always have a fire extinguisher available
when using chain saw.

Use only the replacement guide bars and low
kickback chains specified for the saw.

Do not adapt the powerhead to a bow guide
or use it to power any attachments or devices
not listed for the saw.

The gas powered saw (or electrically
powered saw) is classified by CSA as a
Class 1C (or Class 2C) saw. It is intended for
infrequent use by homeowners, ­cottagers, and
campers, and for such general applications as
clearing, pruning, cutting firewood, etc. It is not
intended for prolonged use. Prolonged periods
of operation can cause circulatory problems in
the user’s hands due to vibration. For such use,
it may be appropriate to use a saw having an
anti-vibration feature.

Save these instructions. Refer to them
frequently and use to instruct other users. If you
loan someone this product, loan them these
instructions also.
SPECIFIC SAFETY RULES
WARNING:
The warnings, labels, and instructions found
in this section of the operator’s manual are for
your safety. Failure to follow all instructions may
result in serious personal injury.

Do not cut vines and/or small underbrush (a
diameter of less than 3 in.).

Muffler surfaces are very hot during and after
operation of the chain saw; keep all body parts
away from the muffler. Serious burns may occur
if contact is made with the muffler.

Always hold the chain saw with both hands
when the engine is running. Use a firm grip
with thumbs and fingers encircling the chain
saw handles.

Never let anyone use the chain saw who
has not received adequate instructions in its
proper use. This applies to rentals as well as
privately owned saws.
Page 4 — English
SPECIFIC SAFETY RULES

Before you start the engine, make sure the
saw chain is not contacting any object.

Wear snug-fitting clothing. Always wear
heavy, long pants, boots, and gloves. Do not
wear jewelry, short pants, sandals, or go barefoot. Do not wear loose fitting clothing, which
could be drawn into the engine or catch the
chain or underbrush. Wear overalls, jeans, or
chaps made of cut-resistant material or ones
that contain cut-resistant inserts. Secure hair
so that it is above shoulder level.

Wear non-slip safety footwear and heavyduty gloves to improve your grip and to protect
your hands.

Wear eye protection which is marked to
comply with ANSI Z87.1, as well as hearing
and head protection, when operating this
equipment.

Keep bystanders and animals out of the work
area. Do not allow other persons to be nearby
during starting or cutting with the chain saw.
NOTE: The size of the work area depends on the
job being performed as well as the size tree or
workpiece involved. For example, felling a tree
requires a larger work area than making other
cuts (i.e., bucking cuts, etc.).

Keep SAFE-T-TIP® anti-kickback nose guard
properly mounted on the guide bar to prevent
rotational kickback.

Follow the sharpening and maintenance
instructions for the saw chain.

Never operate a chain saw that is damaged,
improperly adjusted, or is not completely
and securely assembled. Be sure that the saw
chain stops moving when the throttle control
trigger is released. If the saw chain moves at
idle speed, the carburetor may need ­adjusting.
Refer to Adjusting the Carburetor in the
Maintenance section of this manual. If the saw
chain still moves at idle speed after adjustment
has been made, contact an authorized service
center for adjustment and discontinue use until
the repair is made.
REFUELING (DO NOT SMOKE!)

To reduce the risk of fire and burn injury,
handle fuel with care. It is highly flammable.

Mix and store fuel in a container approved for
gasoline.

Mix fuel outdoors where there are no sparks
or flames.

Select bare ground, stop the engine, and
allow it to cool before refueling.

Loosen the fuel cap slowly to release pressure and to keep fuel from escaping around the
cap.

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 circumstances.
KICKBACK

Kickback is a dangerous reaction that can
lead to serious injury. Do not rely only on the
safety devices provided with the saw. As a
chain saw user, you must take special safety
precautions to help keep your cutting jobs free
from accident or injury. See the General Safety
Rules and Operation sections of this manual
for added information on kickback and how to
avoid serious personal injury.
Page 5 — English
SYMBOLS
Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the product better and safer.
SYMBOL
NAME
DESIGNATION/EXPLANATION
Safety Alert
Indicates a potential personal injury hazard.
Read Operator’s Manual
To reduce the risk of injury, user must read and understand
operator’s manual before using this product.
Wear Eye, Hearing, and
Head Protection
Wear eye protection with side shields marked to comply
with ANSI Z87.1 as well as hearing and head protection
when operating this equipment.
SAFE-T-TIP® Nose Guard
The SAFE-T-TIP® nose guard on the guide bar helps prevent
kickback.
No Smoking
No smoking, sparks, or open flame.
Operate With Two Hands
Hold and operate the saw properly with both hands.
One Handed
Do not operate the saw using only one hand.
Carbon Monoxide
Engines produce carbon monoxide which is an odorless,
deadly poison. Do not operate in an enclosed area.
Kickback
DANGER! Beware of kickback.
Bar Nose Contact
Avoid bar nose contact.
Wear Gloves
Wear non-slip, heavy-duty protective gloves when handling
the chain saw.
Gasoline and
Lubricant
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 lubricant.
Keep Bystanders Away
Keep all bystanders and animals at least 50 ft. away.
Page 6 — English
SYMBOLS
The following signal words and meanings are intended to explain the levels of risk associated with
this product.
SYMBOL
SIGNAL
MEANING
DANGER:
Indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING:
Indicates a potentially hazardous situation, which, if not avoided,
could result in death or serious injury.
CAUTION:
Indicates a potentially hazardous situation, which, if not avoided,
may result in minor or moderate injury.
CAUTION:
(Without Safety Alert Symbol) Indicates a situation that may
result in property damage.
SERVICE
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 servicing, use only
identical replacement parts.
WARNING:
To avoid serious personal injury, do not attempt
to use this product until you read thoroughly and
understand completely 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 result in severe eye damage. Before beginning power tool operation,
always wear safety goggles, safety glasses with side shields, or a full face shield
when needed. 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
Page 7 — English
GLOSSARY OF TERMS
Bucking
The process of cross cutting a felled tree or log
into lengths.
Chain Brake
A device used to stop the saw chain.
Chain Saw Power Head
A chain saw without the saw chain and guide
bar.
Clutch
A mechanism for connecting and disconnecting
a driven member to and from a rotating source of
power.
Drive Sprocket or Sprocket
The toothed part that drives the saw chain.
Felling
The process of cutting down a tree.
Felling Back Cut
The final cut in a tree felling operation made on
the opposite side of the tree from the notching
undercut.
Front Hand Guard
A structural barrier between the front handle of
a chain saw and the guide bar, typically located
close to the hand position on the front handle, and
sometimes employed as an activating lever for a
chain brake.
Front Handle
The support handle located at or toward the front
of the chain saw. This handle is for the left hand.
Guide Bar
A solid railed structure that supports and guides
the saw chain.
Kickback
The backward or upward motion, or both, of the
guide bar occurring when the saw chain near the
nose of the top area of the guide bar contacts any
object such as a log or branch, or when the wood
closes in and pinches the saw chain in the cut.
Kickback (Pinch)
The rapid pushback of the saw which can occur when
the wood closes in and pinches the moving saw
chain in the cut along the top of the guide bar.
Kickback (Rotational)
The rapid upward and backward motion of the
saw which can occur when the moving saw chain
near the upper portion of the tip of the guide bar
contacts an object, such as a log or branch.
Low-Kickback Chain
A chain that complies with the kickback performance requirements of ANSI B175.1 when tested
on a representative sample of chain saws.
Normal Cutting Position
Those positions assumed in performing the bucking
and felling cuts.
Notching Undercut
A notch cut in a tree that directs the tree’s fall.
Rear Handle
The support handle located at or toward the rear
of the saw. It normally contains the throttle. This
handle is for the right hand.
Reduced Kickback Guide Bar
A guide bar which has been demonstrated to
reduce kickback significantly.
Replacement Saw Chain
A chain that complies with the kickback performance requirements of ANSI B175.1 when tested
with specific chain saws. It may not meet the ANSI
performance requirements when used with other
saws.
SAFE-T-TIP® Nose Guard
An attachment that may be provided on the end
of the guide bar to prevent the chain at the end of
the guide bar from contacting the wood.
Saw Chain
A loop of chain having cutting teeth that cut the
wood, and that is driven by the motor and is supported by the guide bar.
Springpole
A small tree (sapling) or limb that is bent or trapped
under tension. It may “spring back” rapidly when
cut, causing a dangerous situation.
Page 8 — English
FEATURES
PRODUCT SPECIFICATIONS
Bar length:
RY10520.................................................. 20 in.
RY10518.................................................. 18 in.
Chain pitch.............................................. .325 in.
Chain gauge............................................ .050 in.
Chain type............................................. Standard
Drive sprocket.......................................... 7-tooth
Engine displacement.................................... 46cc
Engine power.................................... 2.5 HP min.
Idle engine speed.........2,600-3,400 r/min. (RPM)
Fuel tank capacity................................... 19.4 oz.
Chain lubricant tank capacity.................. 11.8 oz.
Weight - No bar, chain, fuel or lubricant.... 10 lbs.
TRIGGER
RELEASE
CHAIN OIL
CAP
FRONT HAND GUARD/
CHAIN BRAKE
FRONT
HANDLE
CYLINDER
COVER
PRIMER
BULB
SAFE-T-TIP®
CHOKE
LEVER
BAR
­MOUNTING
NUTS
Fig. 1a
Page 9 — English
FEATURES
STARTER
GRIP
REAR
HANDLE
STARTER/FAN
HOUSING
FUEL CAP
IGNITION
SWITCH
THROTTLE
TRIGGER
Fig. 1b
KNOW YOUR CHAIN SAW
See Figures 1a - 1b.
The safe use of this product requires an
understanding of the information on the product
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.
CHOKE LEVER
The choke lever opens and closes the choke valve
in the carburetor. Positions available include FULL
CHOKE and RUN.
FRONT HAND GUARD / CHAIN BRAKE
The chain brake is designed to quickly stop the
chain from rotating. When the front hand guard/
chain brake is pushed toward the bar, the chain
should stop immediately. The chain brake does
not prevent kickback.
LOW KICKBACK SAW CHAIN
The low kickback saw chain helps minimize the
force of a kickback reaction by preventing the
cutters from digging in too deeply at the kickback
zone.
PRIMER BULB
The primer bulb pumps fuel from the fuel tank to
the car­buretor.
SAFE-T-TIP® ANTI-KICKBACK NOSE
GUARD
The SAFE-T-TIP® Anti-Kickback Nose Guard is
an attachment provided on the end of the guide
bar to prevent the chain on the end of the guide
bar from contacting the wood.
THROTTLE TRIGGER
The throttle trigger is used for controlling chain
rotation.
GUIDE BAR
The factory-equipped guide bar has a small
radius tip that offers a somewhat lower kickback
potential.
Page 10 — English
ASSEMBLY
UNPACKING
PACKING LIST
This product has been shipped completely assembled.
nCarefully remove the product and any accessories from the box. Make sure that all items
listed in the packing list are included.
Chain Saw
Scabbard
Combination Wrench
2-Cycle Engine Lubricant
Case
Operator’s Manual
WARNING:
Do not use this product if it is not completely
assembled or if any parts appear to be missing
or damaged. Use of a product that is not properly and completely assembled could result in
serious personal injury.
nInspect the product carefully to make sure no
breakage or damage occurred during shipping.
nDo not discard the packing material until you
have carefully inspected and satisfactorily operated the product.
n If any parts are damaged or missing, please call
1-800-860-4050 for assistance.
WARNING:
If any parts are damaged or missing do not
operate this product until the parts are replaced.
Use of this product with damaged or missing
parts could result in serious personal injury.
WARNING:
Do not attempt to modify this product or create accessories not recommended for use with
this product. Any such alteration or modification is misuse and could result in a hazardous
condition leading to possible serious personal
injury.
NOTE: The chain saw has been fully factory tested.
It is normal to find some slight lubricant residue
on the saw. Read and remove all hang tags and
store with the Operator’s Manual.
OPERATION
WARNING:
WARNING:
Do not allow familiarity with this product to
make you careless. Remember that a careless
fraction of a second is sufficient to inflict serious injury.
WARNING:
Do not use any attachments or accessories
not recommended by the manufacturer of this
product. The use of attachments or accessories
not recommended can result in serious personal
injury.
APPLICATIONS
Always wear eye protection with side shields
marked to comply with ANSI Z87.1, along with
hearing and head protection. Failure to do so
could result in objects being thrown into your
eyes and other possible serious injuries.
You may use this product for the purposes listed
below:

Basic limbing, felling, and bucking

Removing buttress roots
Page 11 — English
OPERATION
WARNING:
Always shut off engine before fueling. Never add
fuel to a machine with a running or hot engine.
Move at least 30 ft. from refueling site before
starting the engine. DO NOT SMOKE! Stay away
from open flames or sparks. Failure to heed this
warning could result in serious personal injury.
FUEL AND REFUELING
HANDLING THE FUEL SAFELY
WARNING:
Check for fuel leaks. If any are found, correct
them before using the saw to prevent fire or
burn injury.
n
Always handle fuel with care; it is highly flammable.
n
Always refuel outdoors and do not inhale fuel
vapors.
n
Do not let gasoline or lubricant come in contact
with skin.
n
Keep gasoline and lubricant away from the eyes.
If gasoline or lubricant comes in contact with
the eyes, wash them immediately with clean
water. If irritation is still present, see a doctor
immediately.
n
Clean up spilled fuel immediately.
Refer to Refueling in the Specific Safety Rules
section of this manual for additional safety information.
MIXING THE FUEL
n
Do not use any type of pre-mixed gasoline/lubricant from fuel service stations, this includes the
pre-mixed gasoline/lubricant intended for use
in mopeds, motorcycles, etc.
n
Use a high quality 2-cycle self-mixing lubricant
for air-cooled engines. Do not use automotive
lubricant or 2-cycle outboard lubricant.
n
Mix 2% lubricant into the gasoline. This is a 50:1
ratio.
n
Mix the fuel thoroughly and each time before
fueling.
n
Mix in small quantities. Do not mix quantities
larger than usable in a 30-day period. A 2-cycle
lubricant containing a fuel stabilizer is recommended.
PREMIUM EXACT MIX™ (50:1)
GASOLINE
1 Gallon (US)
1 Liter
LUBRICANT
2.6 oz.
20 cc (20 ml)
OXYGENATED FUELS
DO NOT USE E85 FUEL. IT WILL VOID YOUR
WARRANTY.
NOTE: Fuel system damage or performance
problems resulting from the use of an oxygenated
fuel containing more than the percentages of
oxygenates stated below are not covered under
warranty.
Ethanol. Gasoline containing up to 10% ethanol
by volume (commonly referred to as E10) or 15%
ethanol by volume (commonly referred to as E15)
are acceptable. E85 is not.
n
This product is powered by a 2-cycle engine and
requires pre-mixing gasoline and 2-cycle lubricant. Pre-mix unleaded gasoline and 2-cycle
engine lubricant in a clean container approved
for gasoline.
n
This engine is certified to operate on unleaded
gasoline intended for automotive use with an
octane rating of 87 [(R + M) / 2] or higher.
Page 12 — English
OPERATION
FILLING THE FUEL TANK
See Figure 2.
n
Clean the surface around the fuel cap to prevent
contamination.
n
Loosen the fuel cap slowly.
n
Carefully pour the fuel mixture into the tank.
Avoid spillage.
n
Prior to replacing the fuel cap, clean and inspect the
o-ring.
n
Immediately replace the fuel cap and hand
tighten. Wipe up any fuel spillage.
NOTE: It is normal for the engine to emit smoke
during and after the first use.
ADDING BAR AND CHAIN LUBRICANT
See Figure 3.
Use RYOBI Bar and Chain Lubricant. It is designed
for chains and chain oilers, and is formulated to
perform over a wide temperature range with no dilution required. Chain saw should use approximately
one tank of lubricant per tank of fuel.
NOTE: Do not use dirty, used, or otherwise contaminated lubricants. Damage may occur to the
oil pump, bar, or chain.
n
Carefully pour the bar and chain lubricant into
the oil tank.
n
Fill the oil tank every time you fuel the engine.
Fig. 2
Fig. 3
Page 13 — English
OPERATION
OPERATING THE CHAIN BRAKE
BRAKE
POSITION
See Figures 4 - 5.
Check the operating condition of the chain brake
prior to each use.
n
Engage the chain brake by rotating your left
hand around the front handle, allowing the back
of your hand to push the chain brake lever/hand
guard toward the bar while the chain is rotating
rapidly. Be sure to maintain both hands on the
saw handles at all times.
n
Reset the chain brake back into the RUN position by grasping the top of the chain brake
lever/hand guard and pulling toward the front
handle until you hear a click.
Fig. 4
RUN
POSITION
WARNING:
If the chain brake does not stop the chain
immediately, or if the chain brake will not stay
in the run position without assistance, take the
saw to an authorized service center for repair
prior to use.
Fig. 5
STARTER
GRIP
STARTING THE ENGINE
See Figures 6 - 11.
Starting the product differs depending on whether
the engine is cold or warm.
WARNING:
Keep your body to the left of the chain line.
Never straddle the saw or chain, or lean over
past the chain line.
n
Place the chain saw on level ground and ensure
that no objects or obstructions are in the immediate vicinity that could come in contact with the
bar and chain.
nHold the front handle firmly with your left hand
and put your right foot onto the base of the rear
handle.
To start a cold engine:
n
Set the ignition switch to the RUN ( I ) position.
n
Make sure the chain brake is in the run position
by pulling back on the lever/hand guard.
n
Fully press and release the primer bulb 7 times.
Fig. 6
IGNITION
SWITCH IN THE
RUN POSITION
Fig. 7
n
Pull choke lever all the way out to FULL CHOKE
position.
n
When the temperature is above 50°F, pull the
starter grip until the engine attempts to start, but
no more than 3 times. When the temperature is
Page 14 — English
OPERATION
below 50°F, pull the starter grip until the engine
attempts to start, but no more than 5 times.
n
Push choke lever to RUN position.
n
Pull starter grip until engine runs.
NOTE: Allow the saw to run in this position
15-30 seconds, depending upon the temperature.
n
Depress the trigger release and squeeze and
release the throttle trigger to return the engine
to idle after a total run time of at least 30 seconds.
RUN
­POSITION
Fig. 8
PRIMER BULB
CAUTION:
Failure to release partial throttle when chain
brake lever is in the brake position will result in
serious damage to the unit. Never squeeze and
hold the throttle trigger while the chain brake is
in the brake position.
Fig. 9
To Start a Warm Engine:
n
Set the ignition switch to the RUN ( I ) position.
n
Make sure the chain brake is in the run position
by pulling back on the lever/hand guard.
n
Pull choke lever out to FULL CHOKE position
then push immediately back to RUN position to
set fast idle.
n
Pull starter grip until engine runs, but no more
than 5 times. If engine does not start after 5
pulls, use cold engine starting procedure.
n
Squeeze and release the throttle trigger to return
the engine to idle.
CHOKE
LEVER
Fig. 10
TRIGGER
RELEASE
THROTTLE
TRIGGER
Page 15 — English
Fig. 11
OPERATION
STOPPING THE ENGINE
See Figures 12 - 13.
Release the throttle trigger and let the engine return
to idle. To stop the engine, move the ignition switch
to the STOP ( O ) position. Do not put the chain
saw on the ground when the chain is still moving.
For additional safety, set the chain brake when the
saw is not in use.
In the event that the ignition switch will not stop the
saw, pull the choke lever out to the fully extended
position (FULL CHOKE ) and engage chain brake
to stop the engine. If the ignition switch will not
stop the saw when set to the STOP position, have
the ignition switch repaired before using the chain
saw again to prevent unsafe conditions or serious
injury.
NOTE: When you are finished using the saw,
always relieve tank pressure by loosening, then
retightening, the chain oil and fuel caps. Allow the
engine to cool before storing.
ADJUSTING IDLE SPEED
IGNITION
SWITCH IN THE
STOP POSITION
Fig. 12
BRAKE
POSITION
See Figure 14.
n
If the engine starts, runs, and accelerates,
but will not idle, turn the idle speed screw “T”
clockwise to increase idle speed.
n
If the chain turns at idle, turn the idle speed
screw “T” counterclockwise to reduce the
idle RPM and stop the chain movement. If the
saw chain still moves at idle speed, contact an
authorized service center for adjustment and
discontinue use until the repair is made.
Fig. 13
IDLE SPEED
SCREW “T”
Fig. 14
Page 16 — English
OPERATION
WARNING:
THE SAW CHAIN SHOULD NEVER TURN AT
IDLE. Turn the idle speed screw “T” counterclockwise to reduce the idle RPM and stop the
chain, or contact an authorized service center
for adjustment and discontinue use until the
repair is made. Serious personal injury may
result from the saw chain turning at idle.
PULL
PULL AND PUSH
See Figure 15.
The reaction force of the saw is always opposite to
the direction the chain is moving. Thus, the operator
must be ready to control the PULL when cutting
on the bottom edge of the bar and the PUSH when
cutting along the top edge.
NOTE: The chain saw has been fully factory
tested. It is normal to find some slight oil residue
on the saw.
PUSH
WARNING:
KICKBACK occurs when the moving chain
contacts an object at the upper portion of the
tip of the guide bar or when the wood closes in
and pinches the saw chain in the cut. Contact
at the upper portion of the tip of the guide bar
can cause the chain to dig into the object and
stop the chain for an instant. The result is a
lightning-fast reverse reaction which kicks the
guide bar up and back toward the operator. If
the saw chain is pinched along the top of the
guide bar, the guide bar can be driven rapidly
back toward the operator. Either of these reactions can cause loss of saw control, which can
result in serious injury.
Do not rely exclusively upon the safety devices
built into the saw. As a chain saw user, you
should take steps to keep your cutting jobs
free from accident or injury. See General Safety
Rules for more details.
Page 17 — English
Fig. 15
OPERATION
KICKBACK PRECAUTIONS
KICKBACK
DANGER ZONE
See Figures 16 - 17.
Rotational kickback occurs when the moving chain
contacts an object at the Kickback Danger Zone of
the guide bar. The result is a lightning-fast reverse
reaction, which kicks the guide bar up and back
towards the operator. This reaction can cause loss
of control, which can result in serious injury.
Fig. 16
ROTATIONAL
KICKBACK
PREPARING FOR CUTTING
PROPER GRIP ON HANDLES
See Figure 18.
See General Safety Rules for appropriate safety
equipment.
n
Wear non-slip gloves for maximum grip and
protection.
n
Hold the saw firmly with both hands. Always
keep your left hand on the front handle and your
right hand on the rear handle so that your body
is to the left of the chain line.
Fig. 17
WARNING:
Never use a left-handed (cross-handed) grip or
any stance that would place your body or arm
across the chain line.
n
Maintain a proper grip on the saw whenever the
engine is running. The fingers should encircle
the handle and the thumb is wrapped under the
handlebar. This grip is least likely to be broken
by a kickback or other sudden reaction of the
saw. Any grip in which the thumb and fingers
are on the same side of the handle is dangerous
because a slight kick of the saw can cause loss
of control.
PROPER HAND GRIP
POSITION
PROPER GRIP
IMPROPER GRIP
WARNING:
DO NOT operate the throttle
trigger with your left hand
and hold the front handle
with your right hand. Never
allow any part of your body
to be in the chain line while
operating a saw.
Fig. 18
CHAIN
LINE
Page 18 — English
OPERATION
PROPER CUTTING STANCE
See Figure 19.
THUMB ON
­UNDERSIDE OF
HANDLE BAR
WARNING:
CHAIN LINE
STRAIGHT
ARM
Alway use the proper cutting stance described
in this section. Never kneel when using the
chain saw except when felling a tree as shown
in figure 24. Kneeling could result in loss of stability and control of the saw resulting in serious
personal injury.
n
Balance your weight with both feet on solid
ground.
n
Keep left arm with elbow locked in a “straight
arm” position to withstand any kickback force.
n
Keep your body to the left of the chain line.
n
Keep your thumb on underside of handlebar.
Fig. 19
WORK AREA PRECAUTIONS
See Figure 20.
n
Cut only wood or materials made from wood;
no sheet metal, no plastics, no masonry, no
non-wood building materials.
n
Never allow children to operate the saw. Allow
no person to use this chain saw who has
not read this operator’s manual or received
adequate instructions for the safe and proper
use of this chain saw.
n
Keep everyone – helpers, bystanders, children,
and animals, a SAFE DISTANCE from the cutting area. During felling operations, the safe
distance should be a least twice the height of the
largest trees in the felling area. During bucking
operations, keep a minimum distance of 15 feet
between workers.
n
Always cut with both feet on solid ground to
prevent being pulled off balance.
n
Do not cut above chest height as a saw held
higher is difficult to control against kickback
forces.
n
Do not fell trees near electrical wires or buildings. Leave this operation for professionals.
n
Cut only when visibility and light are adequate
for you to see clearly.
Fig. 20
BASIC OPERATING/CUTTING
PROCEDURES
Practice cutting a few small logs using the following
technique to get the “feel” of using the saw before
you begin a major sawing operation.
n
Take the proper stance in front of the wood with
the saw idling.
n
Accelerate the engine to full throttle just before
entering the cut by squeezing the throttle trigger.
n
Begin cutting with the saw against the log.
n
Keep the engine at full throttle the entire time
you are cutting.
n
Allow the chain to cut for you; exert only light
downward pressure. Forcing the cut could result
in damage to the bar, chain, or engine.
n
Release the throttle trigger as soon as the cut is
completed allowing the engine to idle. Running
Page 19 — English
OPERATION
the saw at full throttle without a cutting load can
result in unnecessary wear to the chain, bar, and
engine.
n
Do not put pressure on the saw at the end of
the cut.
PLANNED LINE
OF FALL
FELLING TREES
HAZARDOUS CONDITIONS
WARNING:
Do not fell trees during periods of high wind or
heavy ­precipitation. Wait until the hazardous
weather has ended.
When felling a tree, it is important that you heed
the following warnings to prevent possible serious
injury.
n
Do not cut down trees having an extreme lean
or large trees with rotten limbs, loose bark,
or hollow trunks. Have these trees pushed or
dragged down with heavy equipment, then cut
them up.
n
Do not cut trees near electrical wires or buildings.
n
Check the tree for damaged or dead branches
that could fall and hit you during felling.
n
Periodically glance at the top of the tree during
the backcut to assure the tree is going to fall in
the desired direction.
n
If the tree starts to fall in the wrong direction,
or if the saw gets caught or hung up during the
fall, leave the saw and save yourself!
90°
135° FROM
PLANNED
LINE OF FALL
PLANNED
LINE OF
FALL
PATH OF
SAFE RETREAT
45°
90°
45°
135°
Fig. 21
HINGE
2 in. OR 1/10 DIA
PROPER PROCEDURE FOR TREE
FELLING
See Figures 21 - 24.
n
Pick your escape route (or routes in case the
intended route is blocked). Clear the immediate
area around the tree and make sure there are
no obstructions in your planned path of retreat.
Clear the path of safe retreat approximately 135°
from the planned line of fall.
n
Consider the force and direction of the wind, the
lean and balance of the tree, and the location of
large limbs. These things influence the direction
in which the tree will fall. Do not try to fell a tree
along a line different from its natural line of fall.
Page 20 — English
PATH
OF SAFE
RETREAT
135°
NOTCH APPROX. 1/3
DIAMETER OF
TRUNK
BACK CUT
2 in.
Fig. 22
OPERATION
n
Cut a notch about 1/3 the diameter of the trunk
in the side of the tree. Make the notch cuts so
they intersect at a right angle to the line of fall.
This notch should be cleaned out to leave a
straight line. To keep the weight of the wood
off the saw, always make the lower cut of the
notch before the upper cut.
n
Make the backcut level and horizontal, and at
a minimum of 2 in. above the horizontal cut of
the notch.
NOTE: Never cut through to the notch. Always
leave a band of wood between the notch
and back cut (approximately 2 in. or 1/10 the
diameter of the tree). This is called “hinge” or
“hingewood.” It controls the fall of the tree and
prevents slipping or twisting or shootback of
the tree off the stump.
nOn large diameter trees, stop the back cut
before it is deep enough for the tree to either
fall or settle back on the stump. Then insert soft
wooden or plastic wedges into the cut so they
do not touch the chain. Drive wedges in, little
by little, to help jack the tree over.
NOTE: When bucking or felling with a wedge, it
may be necessary to remove the SAFE-T-TIP®
anti-kickback device to allow the bar to be
drawn through the cut. After you complete the
cut, reinstall the tip immediately.
n
As tree starts to fall, stop the chain saw and put
it down immediately. Retreat along the cleared
path, but watch the action in case something
falls your way.
HINGE
BACK CUT
Fig. 23
WEDGE
Fig. 24
VERTICAL
CUT
LOOSE
SECTION
HORIZONTAL
CUT
Fig. 25
WARNING:
Never cut through to the notch when making a
back cut. The hinge controls the fall of the tree,
this is the section of wood between the notch
and backcut.
REMOVING BUTTRESS ROOTS
See Figure 25.
A buttress root is a large root extending from the
trunk of the tree above the ground. Remove large
buttress roots prior to felling. Make the horizontal
cut into the buttress first, followed by the vertical
cut. Remove the resulting loose section from the
Page 21 — English
OPERATION
work area. Follow the correct tree felling procedure
as stated in Proper Procedure For Tree Felling
after you have removed the large buttress roots.
KICKBACK
BUCKING
See Figure 26.
Bucking is the term used for cutting a fallen tree
to the desired log length.
n
Cut only one log at a time.
n
Support small logs on a saw horse or another
log while bucking.
n
Keep a clear cutting area. Make sure that no
objects can contact the guide bar nose and
chain during cutting, this can cause kickback.
To avoid the danger, keep the SAFE-T-TIP®
anti-kickback device attached while cutting.
Refer to Kickback in the Specific Safety Rules
section of this manual for more information.
n
During bucking operations, stand on the uphill
side so that the cut-off section of the log cannot
roll over you.
n
Sometimes it is impossible to avoid pinching
(with just standard cutting techniques) or difficult to predict which way a log will settle when
cut.
BUCKING WITH A WEDGE
See Figure 27.
If the wood diameter is large enough for you to
insert a soft bucking wedge without touching the
chain, you should use the wedge to hold the cut
open to prevent pinching.
NOTE: When bucking or felling with a wedge, you
may need to remove the SAFE-T-TIP® anti-kickback
device to allow the bar to be drawn through the
cut. After you complete the cut, reinstall the tip.
Page 22 — English
Fig. 26
WEDGE
Fig. 27
OPERATION
BUCKING LOGS UNDER STRESS
LOG SUPPORTED AT ONE END
See Figure 28.
Make the first bucking cut 1/3 of the way through
the log and finish with a 2/3 cut on the opposite
side. As you cut the log, it will tend to bend. The
saw can become pinched or hung in the log if you
make the first cut deeper than 1/3 of the diameter
of the log.
Give special attention to logs under stress to
prevent the bar and chain from pinching.
FINISHING CUT
LOAD
1ST CUT 1/3 DIA
OVERBUCKING
LOG SUPPORTED AT BOTH ENDS
See Figure 29.
Begin on the top side of the log with the bottom
of the saw against the log; exert light pressure
downward. Note that the saw will tend to pull
away from you.
1ST CUT 1/3 DIA
LOAD
UNDERBUCKING
See Figure 30.
Begin on the under side of the log with the top
of the saw against the log; exert light pressure
upward. During underbucking, the saw will tend
to push back at you. Be prepared for this reaction
and hold the saw firmly to maintain control.
FINISHING CUT
OVERBUCKING
UNDERBUCKING
Page 23 — English
Fig. 28
Fig. 29
Fig. 30
OPERATION
LIMBING AND PRUNING
See Figures 31 - 32.
n
Work slowly, keeping both hands on the saw
with a firm grip. Maintain secure footing and
balance.
n
Keep the tree between you and the chain while
limbing.
n
Do not cut from a ladder. This is extremely dangerous. Leave this operation for professionals.
n
Do not cut above chest height. A saw held
higher than chest height is ­difficult to control
against kickback.
LOAD
SECOND CUT
FIRST CUT
1/3 DIAMETER
FINISHING CUT
Fig. 31
WARNING:
Never climb into a tree to limb or prune. Do
not stand on ladders, platforms, a log, or in
any position which can cause you to lose your
balance or control of the saw.
n
When pruning trees it is important not to make
the flush cut next to the main limb or trunk until
you have cut off the limb further out to reduce
the weight. This prevents stripping the bark from
the main member.
• Underbuck the branch 1/3 through for your
first cut.
• Overbuck the branch to drop it.
• Finish by cutting smoothly and neatly against
the main member so the bark will grow back
to seal the wound.
WARNING:
If the limbs to be pruned are above chest height,
hire a professional to perform the pruning.
CUTTING SPRINGPOLES
See Figure 33.
A springpole is any log, branch, rooted stump, or
sapling which is bent under tension by other wood
so that it springs back if the wood holding it is cut
or removed. On a fallen tree, a rooted stump has
a high potential of springing back to the upright
position during the bucking cut to separate the log
from the stump. Watch out for springpoles — they
are dangerous.
CUT LIMBS ONE AT A TIME AND LEAVE SUPPORT
LIMBS UNDER TREE UNTIL LOG IS CUT
Fig. 32
SPRINGPOLE
Fig. 33
WARNING:
Springpoles are dangerous and could strike the
operator, causing the operator to lose control
of the chain saw. This could result in severe or
fatal injury to the operator.
Page 24 — English
MAINTENANCE
WARNING:
RUN
POSITION
When servicing, use only identical replacement
parts. Use of any other parts may create a hazard or cause product damage.
WARNING:
Always wear eye protection with side shields
marked to comply with ANSI Z87.1, along with
hearing and head protection. Failure to do so
could result in objects being thrown into your
eyes and other possible serious injuries.
Fig. 34
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, lubricant, grease, etc.
COMBINATION
WRENCH
BAR MOUNTING
NUTS
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.
Fig. 35
CLUTCH
COVER
LUBRICATION
GUIDE BAR
PLATE
All of the bearings in this product are lubricated with
a sufficient amount of high grade lubricant for the
life of the unit under normal operating conditions.
Therefore, no further lubrication is required.
BAR MOUNTING
NUTS
REPLACING THE GUIDE BAR AND
CHAIN
See Figures 34 - 43.
Fig. 36
WARNING:
DANGER:
Never start the engine before installing the
guide bar, chain, clutch cover, and clutch drum.
Without all these parts in place, the clutch can
fly off or explode, exposing the user to possible
serious injury.
To avoid serious personal injury, read and
understand all the safety instructions in this
section.
Page 25 — English
MAINTENANCE
n
Always place the switch in the STOP “ O ” position before you work on the saw.
n
Make sure the chain brake is not set by pulling
the chain brake lever/hand guard towards the
front handle to the run position.
NOTE: When replacing the guide bar and chain,
always use the specified bar and chain listed in
the Bar and Chain Combinations section later
in this manual.
n
Wear gloves when handling the chain and bar.
These components are sharp and may contain
burrs.
n
Remove the bar mounting nuts using the combination wrench provided.
n
Remove the clutch cover and the outer guide
bar plate.
n
Remove the bar and chain from the mounting
surface.
n
Remove the old chain from the bar.
n
Lay out the new saw chain in a loop and
straighten any kinks. The cutters should face
in the direction of chain rotation. If they face
backwards, turn the loop over.
n
Place the chain drive links into the bar groove
as shown.
n
Position the chain so there is a loop at the back
of the bar.
n
Hold the chain in position on the bar and place
the loop around the sprocket.
n
Fit the bar flush against the mounting surface
so that the bar studs are in the long slot of the
bar.
NOTE: When placing the bar on the bar studs,
ensure that the adjusting pin is in the chain tension pin hole.
n
Replace the outer guide bar plate ensuring that
the bar pin groove is at the bottom with the
upper and lower edges angled away from the
guide bar.
Page 26 — English
CUTTERS
CHAIN ROTATION
CHAIN DRIVE LINKS
Fig. 37
BAR
GROOVE
CHAIN DRIVE
LINKS
Fig. 38
MAINTENANCE
n
Replace the clutch cover and bar mounting nuts.
n
Fingertighten the bar mounting nuts. The bar
must be free to move for tension adjustment.
n
Remove all slack from the chain by turning the
chain tensioning screw clockwise until the chain
seats snugly against the bar with the drive links
in the bar groove.
n
Lift the tip of the guide bar up to check for sag.
n
Release the tip of the guide bar and turn the
chain tensioning screw 1/2 turn clockwise.
Repeat this process until sag does not exist.
n
Hold the tip of the guide bar up and tighten the
bar mounting nuts securely.
The chain is correctly tensioned when there is no
sag on the underside of the guide bar, the chain is
snug, but it can be turned by hand without binding.
Ensure that the chain brake is not set.
NOTE: If chain is too tight, it will not rotate. Loosen
the bar nuts slightly and turn the tension adjuster
1/4 turn counterclockwise. Lift the tip of the guide
bar up and retighten the bar nuts securely. Ensure
that the chain will rotate without binding.
BAR STUDS
ADJUSTING
PIN
GUIDE BAR
PLATE
SPROCKET
BAR
MOUNTING
NUTS
CLUTCH
COVER
Fig. 39
CHAIN
TENSIONING
SCREW
Fig. 40
Page 27 — English
MAINTENANCE
ADJUSTING THE CHAIN TENSION
See Figures 44 - 46.
WARNING:
Never touch or adjust the chain while the engine
is running. The saw chain is very sharp. Always
wear protective gloves when performing maintenance on the chain.
n
Stop the engine before setting the chain tension.
n
Make sure the bar mounting nuts are loosened
to finger tight.
n
Turn the chain tensioning screw clockwise to
tension the chain.
NOTE: A cold chain is correctly tensioned when
there is no slack on the underside of the guide
bar, the chain is snug, and it can be turned by
hand without binding.
n
Retension the chain whenever the flats on the
drive links hang out of the bar groove.
NOTE: During normal saw operation, the temperature of the chain increases. The drive links
of a correctly tensioned warm chain will hang
approximately .050 in. out of the bar groove.
The tip of the combination wrench can be used
as a guide to help determine the correct warm
chain tension.
NOTE: New chains tend to stretch; check
the chain tension frequently and tension as
required.
Fig. 41
Fig. 42
Fig. 43
FLATS ON DRIVE LINKS
CAUTION:
A chain tensioned while warm may be too tight
upon cooling. Check the “cold tension” before
next use.
Fig. 44
Page 28 — English
MAINTENANCE
CHAIN MAINTENANCE
See Figures 47 - 48.
CAUTION:
Check that the switch is in the STOP “ O ” position before you work on the saw.
Use only a low-kickback chain on this saw. This
fast-­
cutting chain provides kickback reduction
when properly maintained.
For smooth and fast cutting, maintain the chain
properly.
The chain requires sharpening when the wood
chips are small and powdery, the chain must be
forced through the wood during cutting, or the
chain cuts to one side. During maintenance of the
chain, consider the following:
n
Improper filing angle of the side plate can
increase the risk of severe kickback.
n
Raker (depth gauge) clearance.
• Too low increases the potential for kickback.
• Not low enough decreases cutting ability.
n
If the cutter teeth hit hard objects such as nails
and stones, or are abraded by mud or sand on
the wood, have an authorized service center
sharpen the chain.
NOTE: Inspect the drive sprocket for wear or
damage when replacing the chain. If signs of
wear or damage are present in the areas indicated, have the drive sprocket replaced by an
authorized service center.
NOTE: If you do not fully understand the correct
procedure for sharpening the chain after reading the
instructions that follow, have the saw chain sharpened by an authorized service center or replace
with a recommended low-kickback chain.
≈ .050 in.
Fig. 45
≈ .050 in.
Fig. 46
RAKER (DEPTH GAUGE) CLEARANCE
.025 in.
Fig. 47
INSPECT
DRIVE
SPROCKET
Fig. 48
Page 29 — English
MAINTENANCE
SHARPENING THE CUTTERS
See Figures 49 - 52.
Be careful to file all cutters to the specified angles
and to the same length, as fast cutting can only be
obtained when all cutters are uniform.
CUTTING
CORNER
SIDE PLATE
TOP PLATE
DEPTH GAUGE
RIVET HOLE
WARNING:
HEEL
The saw chain is very sharp. Always wear protective gloves when performing maintenance to
the chain to prevent serious personal injury.
TOE
GULLET
n
Tension the chain prior to sharpening. Refer to
Adjusting The Chain Tension.
n
Use a 3/16 in. diameter round file and holder.
Do all of your filing at the midpoint of the bar.
n
Keep the file level with the top plate of the tooth.
Do not let the file dip or rock.
n
Using light but firm pressure. Stroke towards
the front corner of the tooth.
n
Lift the file away from the steel on each return
stroke.
n
Put a few firm strokes on every tooth. File all left
hand cutters in one direction. Then move to the
other side and file the right hand cutters in the
opposite direction.
n
Remove filings from the file with a wire brush.
Fig. 49
Fig. 50
Fig. 51
CAUTION:
LEFT HAND
CUTTERS
A dull or improperly sharpened chain can cause
excessive engine speed during cutting, which
may result in severe engine damage.
WARNING:
Improper chain sharpening increases the potential of kickback.
RIGHT HAND
CUTTERS
WARNING:
Failure to replace or repair a damaged chain
can cause serious injury.
Page 30 — English
Fig. 52
MAINTENANCE
TOP PLATE FILING ANGLE
See Figure 53.
n
CORRECT 30° – file holders are marked with
guide marks to align file properly to produce
correct top plate angle.
n
LESS THAN 30° – for cross cutting.
n
MORE THAN 30° – feathered edge dulls quickly.
SIDE PLATE ANGLE
See Figure 54.
n
CORRECT 80° – Produced automatically if you
use the correct diameter file in the file holder.
n
HOOK – “Grabs” and dulls quickly; increases the
potential of KICKBACK. Results from using a file
with a diameter too small or a file held too low.
n
BACKWARD SLOPE – Needs too much feed
pressure; causes excessive wear to the bar and
TOP PLATE FILING ANGLE
30°
chain. Results from using a file with a diameter
too large or file held too high.
MAINTAINING DEPTH GAUGE
CLEARANCE
See Figure 55 - 57.
n
Maintain the depth gauge at a clearance of .025
in. Use a depth gauge tool for checking the
depth gauge clearances.
n
Every time the chain is filed, check the depth
gauge clearance.
n
Use a flat file and a depth gauge jointer to lower
all gauges uniformly. Use a .025 in. depth gauge
jointer. After lowering each depth gauge, restore
original shape by rounding the front. Be careful
not to damage adjoining drive links with the
edge of the file.
n
Depth gauges must be adjusted with the flat file in
the same direction the adjoining cutter was filed
with the round file. Use care not to contact cutter
face with flat file when adjusting depth gauges.
RAKER (DEPTH GAUGE) CLEARANCE
CORRECT
LESS THAN 30°
MORE THAN 30°
.025 in.
Fig. 55
DEPTH GAUGE JOINTER
INCORRECT
Fig. 53
SIDE PLATE FILING ANGLE
80°
FLAT FILE
CORRECT
HOOK
BACKWARD SLOPE
Fig. 56
RESTORE ORIGINAL
SHAPE BY ROUNDING
THE FRONT
INCORRECT
Fig. 54
Page 31 — English
Fig. 57
MAINTENANCE
MAINTAINING THE GUIDE BAR
See Figure 58.
CAUTION:
LUBRICATING HOLE
Make sure the chain has stopped before you
do any work on the saw.
Every week of use, reverse the guide bar on the
saw to distribute the wear for maximum bar life.
The bar should be cleaned every day of use and
checked for wear and damage.
Feathering or burring of the bar rails is a normal process of bar wear. Such faults should be smoothed
with a file as soon as they occur.
A bar with any of the following faults should be
replaced:
n
Wear inside the bar rails that permits the chain
to lay over sideways
n
Bent guide bar
n
Cracked or broken rails
n
Spread rails
Lubricate guide bars with a sprocket at their tip
weekly. Using a grease syringe, lubricate weekly in
the lubricating hole. Turn the guide bar and check
that the lubrication holes and chain groove are free
from impurities.
Fig. 58
MOUNTING
SCREW
SAFE-T-TIP®
Fig. 59
TIGHTEN 3/4
OF A TURN
MOUNTING THE SAFE-T-TIP® NOSE
GUARD
See Figures 59 - 60.
n
Stop the engine and disconnect the spark plug
wire.
n
Mount the SAFE-T-TIP® on the bar nose.
n
Fit the locking tab in the recessed slot in the
guide bar.
n
Tighten the mounting screw with wrench until
snug.
n
From the snug position, tighten the mounting screw an additional 3/4 of a turn using a
wrench.
Fig. 60
MAINTAINING THE SAFE-T-TIP® NOSE
GUARD
See Figures 59 - 60.
CAUTION:
Make sure the chain has stopped before you
do any work on the saw.
WARNING:
Although the guide bar comes with a SAFET-TIP® antikickback device already installed,
check the tightness of the mounting screw
before each use.
Page 32 — English
MAINTENANCE
Use the following instructions to tighten the mounting screw of the nose guard. These are specially
hardened screws. If you cannot install the screw
tightly, replace both the screw and the SAFE-T-TIP®
before further operation.
NOTE: Do not replace the screw with an ordinary
screw. Use only identical replacement parts from
the manufacturer when replacing parts.
In addition to preventing chain contact with solid
objects at the nose of the bar, the SAFE-T-TIP® also
helps keep the chain away from abrasive surfaces,
such as the ground. Keep it on the right hand side
of the bar where it will be between the chain and
the ground during flush with ground cutting.
The mounting screw requires a 5/16 in. wrench (or
adjustable wrench) to achieve the recommended
torque of 35 to 45 in.lb. A torque within this range
can be achieved by using the following method.
n
Tighten the screw with wrench until snug.
n
From the snug position, tighten the screw an
additional 3/4 of a turn using a wrench.
CYLINDER
COVER
SCREW
SCREWS
Fig. 61
AIR FILTER
AIR FILTER
RETAINING
SCREW
Fig. 62
CLEANING THE AIR FILTER
See Figures 61 - 64.
n
For access to the air filter and carburetor area,
loosen the three screws holding the cylinder
cover.
n
Activate chain brake.
n
Lift the front of the cylinder cover past chain
brake lever.
n
Lift the back of the cylinder cover past handle.
n
Before removing the air filter from the carburetor, blow or brush as much loose dirt and sawdust from around the carburetor and chamber
as possible.
NOTE: Make sure to pull the choke rod out to
keep the carburetor from being contaminated.
n
Remove the screw securing the air filter.
n
Position a flat screwdriver between the tabs and
twist to release from the air filter base.
n
Lift the air filter off the air filter base.
Choose one of the following cleaning options:
n
To lightly clean, tap the filter against a smooth,
flat surface to dislodge most saw dust and dirt
particles.
FAN
­HOUSING
BAFFLE
PRE-FILTER
STARTER ASSEMBLY
Fig. 63
n
After every 5 hours of operation, clean in warm
soapy water, rinse, and let dry completely.
Replace with a new filter after every 25 hours
of use.
NOTE: An alternate method is to clean the filter
with compressed air. Always wear eye protection to avoid eye injury.
n
Reinstall air filter, making sure that tabs on air
filter are located in channels on air filter bottom
before tightening filter retaining screws.
Page 33 — English
MAINTENANCE
n
Clean the pre-filter every 5 hours of use or
sooner, if required. Remove the cylinder cover,
starter assembly, and the fan housing baffle for
access to the pre-filter in the engine housing.
NOTE: If you use an air hose for drying, blow
through both sides of filter.
AIR FILTER
CAUTION:
Make sure the air filter is correctly placed in the
air filter cover before reassembly. Never run the
engine without the air filter, serious damage
could result.
Fig. 64
CLEANING THE STARTER UNIT
See Figure 65.
Use a brush or compressed air to keep the cooling vents of the starter assembly free and clean
of debris.
ADJUSTING THE CARBURETOR
See Figure 65 - 66.
Before adjusting the carburetor:
n
Use a brush or compressed air to clean the
starter cover vents.
n
Clean the air filter. Refer to Cleaning the Air Filter in the Maintenance section of this manual.
n
Allow the engine to warm up prior to adjustment
of engine idle speed.
STARTER COVER
VENTS
Fig. 65
WARNING:
Weather conditions and altitude may affect
carburetion. Do not allow bystanders close to
the chain saw while adjusting the carburetor.
Idle Speed Adjustment —The idle speed adjustment controls how much the throttle valve stays
open when the throttle trigger is released. To
adjust:
n
Turn idle speed screw “T” clockwise to increase
idle speed.
n
Turn idle speed screw “T” counterclockwise to
decrease idle speed.
IDLE SPEED
SCREW “T”
Fig. 66
WARNING:
THE SAW CHAIN SHOULD NEVER TURN AT
IDLE. Serious personal injury may result from
the saw chain turning at idle.
Page 34 — English
MAINTENANCE
CLEANING THE ENGINE
See Figures 67 - 68.
Clean the cylinder fins and flywheel fins with
compressed air or a brush periodically. Dangerous overheating of the engine may occur due to
impurities on the cylinder.
CLEAN
­CYLINDER
FINS
WARNING
Never run the saw without all the parts, including
the clutch cover and starter housing, securely
in place.
Because parts can fracture and pose a danger
of thrown objects, leave repairs of the flywheel
and clutch to factory trained authorized service
center personnel.
NOTE: If you notice a power loss with the gaspowered tool, the exhaust port and muffler may
be blocked with carbon deposits. These deposits
may need to be removed to restore performance.
We highly recommend that only qualified service
technicians perform this service.
CHECKING THE FUEL FILTER
Fig. 67
CLEAN
FLYWHEEL FINS
Fig. 68
See Figure 69.
Check the fuel filter periodically. If contaminated or
damaged, have fuel filter replaced by an authorized
service center.
REPLACING THE SPARK PLUG
See Figure 70.
This engine uses a Champion RCJ6Y with .025 in.
electrode gap. Use an exact replacement and
replace every 50 hours or more frequently, if
necessary.
n
Loosen the spark plug by turning it counterclockwise with a wrench.
n
Remove the spark plug.
n
Hand thread the new spark plug, turning it
clockwise. Tighten securely with wrench.
NOTE: Be careful not to cross-thread the spark
plug. Cross-threading will seriously damage the
cylinder.
FUEL FILTER
Fig. 69
Fig. 70
Page 35 — English
MAINTENANCE
SPARK ARRESTOR
The spark arrestor must be cleaned or replaced
every 50 hours or yearly to ensure proper performance of your product. Spark arrestors may
be in different locations depending on the model
purchased. Please contact your nearest service
dealer for the location of the spark arrestor for
your model.
CHAIN CATCHER
INSPECTING AND CLEANING CHAIN
BRAKE
See Figures 71 - 72.
n
Remove the clutch cover and clean the chain
brake components. Check wear on the brake
band and replace if worn or deformed. The band
thickness should not be less than 0.024 in., or
worn halfway through.
n
Always keep the chain brake mechanism clean
and lightly brush the linkage.
n
Always test the chain brake performance after
cleaning. Refer to Operating Chain Brake for
additional information.
CLUTCH
COVER
BRAKE BAND
Fig. 71
LUBRICATE THE CHAIN
BRAKE LINKAGE
CLEAN THE CHAIN BRAKE
n
Check the chain catcher and replace if
­damaged.
WARNING:
Even with daily cleaning of the mechanism, the
dependability of a chain brake to perform under
field conditions cannot be certified. Keep the
SAFE-T-TIP® nose guard on the saw’s guide bar
and use proper cutting techniques.
STORING THE PRODUCT
n
Clean all foreign material from the product. Store
it in a well-ventilated place that is inaccessible
to children. Keep away from corrosive agents
such as garden chemicals and de-icing salts.
Fig. 72
n
Abide by all Federal and local regulations for
the safe storage and handling of gasoline.
When storing 1 month or longer:
n
Drain all fuel from tank into a container approved
for gasoline.
n
Run the engine until it stops. This will remove
all fuel-lubricant mix that could become stale
and leave varnish and gum in the fuel system.
n
Squeeze primer bulb several times to purge fuel
from carburetor.
n
Drain all bar and chain lubricant from tank into
a container approved for oil.
n
Always place the scabbard over the guide bar
and chain before transporting or storing the unit.
Page 36 — English
MAINTENANCE
EMISSIONS MAINTENANCE SCHEDULE
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
AIR FILTER ASSY
includes:
Filter Screen....................................................... X.............................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
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.
Page 37 — English
BAR AND CHAIN COMBINATIONS
Chain specifications: 0.0325 pitch, .05 in. chain gauge
Length of Bar
Guide Bar Part Number
20 in.
310629001
18 in.
310628001
Chain Part Number
900920027
901430001
Drive Links
78 link
72 link
TROUBLESHOOTING
Problem
Possible Cause
Engine will not No spark.
start. [Make sure
ignition switch is in
Engine is flooded.
the RUN ( l ) position.]
Solution
Clean or replace spark plug. Reset spark plug gap. Refer
to Spark Plug Replacement earlier in this manual.
With the ignition switch OFF, remove spark plug. Move
choke lever to RUN position (pushed in completely) and
pull starter cord 15 to 20 times. This will clear excess
fuel from engine. Clean and reinstall spark plug. Set ignition switch to RUN ( l ) position. Push and fully release
primer bulb 7 times. Pull starter three times with choke
lever at RUN. If engine does not start, move choke lever
to FULL CHOKE and repeat normal starting procedure.
If engine still fails to start, repeat procedure with a new
spark plug.
Engine starts but
will not accelerate
properly.
Carburetor requires
“L” (Low Jet)
adjustment.
Contact an authorized service center for carburetor
adjustment.
Engine starts, then
dies.
Carburetor requires
“L” (Low Jet)
adjustment.
Contact an authorized service center for carburetor
adjustment.
Engine starts but Carburetor requires
will not run proper- “H” (High Jet)
ly at high speed.
adjustment.
Contact an authorized service center for carburetor
adjustment.
Engine does not Lubricant/fuel
reach full speed mixture incorrect.
and/or emits exAir filter is dirty.
cessive smoke.
Use fresh fuel and the correct 2-cycle lubricant mix
ratio.
Clean air filter. Refer to Cleaning the Air Filter in the
Maintenance section of this manual.
Spark arrestor
screen is dirty.
Clean spark arrestor screen. Refer to Inspecting/Cleaning the Spark Arrestor Screen in the Maintenance section of this manual.
Carburetor requires
“H” (High Jet)
adjustment.
Contact an authorized service center for carburetor
adjustment.
Page 38 — English
TROUBLESHOOTING
Problem
Possible Cause
Solution
Engine starts, runs, Carburetor requires
and accelerates ­adjustment to idle
speed.
but will not idle.
Turn idle speed screw “T” clockwise to increase idle
speed. Refer to Adjusting the Carburetor in the
Maintenance section of this manual.
Carburetor requires
­adjustment to idle
speed.
Turn idle speed screw “T” counterclockwise to decrease speed. Refer to Adjusting the Carburetor in
the Maintenance section of this manual.
Air leak in the intake
system.
Contact an authorized service center for a rebuild kit.
Chain turns at
idle.
B a r a n d c h a i n Chain oil tank empty.
running hot and
Chain tension is too
smoking.
tight.
Engine starts and
runs, but chain is
not rotating.
Oil tank should be filled every time fuel tank is filled.
Tension chain per instructions in Adjusting the Chain
Tension in the Maintenance section of this manual.
Oiler is not
functioning.
Run at half throttle 30 to 45 seconds. Stop saw and
check for lubricant dripping from SAFE-T-TIP® and guide
bar. If lubricant is present, the chain may be dull or bar
may be damaged. If no lubricant is on the SAFE-T-TIP®,
contact an authorized service center.
Chain brake is
engaged.
Release chain brake. Refer to Operating the Chain
Brake in the ­Operation section of this manual.
Chain tension is too
tight.
Tension chain per instructions in Adjusting the Chain
Tension in the Maintenance section of this manual.
Guide bar and
chain ­assembled
incorrectly.
Refer to Replacing the Guide Bar and Chain in the
Maintenance section of this manual.
Guide bar and/or
chain are damaged.
Inspect guide bar and chain for damage.
Drive sprocket teeth
­damaged
Contact an authorized service center for drive sprocket
replacement.
Chain tensioning Tip of guide bar is
dial is difficult to not raised.
turn.
Clutch cover lock
knob is too tight.
Raise tip of guide bar while rotating tension adjustment
dial.
Press in the clutch cover lock knob and rotate counterclockwise to slightly loosen the clutch cover before
attempting to adjust chain tension.
Page 39 — English
WARRANTY
LIMITED WARRANTY STATEMENT
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.
 Three 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.
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
of Techtronic Industries North America, Inc. to be defective
in material or workmanship will be repaired or replaced
without charge for parts and labor by an authorized service
center for RYOBI® brand outdoor products (Authorized
Ryobi Service Center).
The product, including any defective part, must be returned
to an authorized Ryobi service center within the warranty
period. The expense of delivering the product to the service
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
warranty shall be cause for cancellation or rescission of the
contract of sale of any RYOBI® brand outdoor product. 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
extend to repairs made necessary by normal wear or by the
use of parts or accessories which are either incompatible
with the RYOBI® brand outdoor product or adversely affect
its operation, performance, or durability. In addition, this
warranty does not cover:
A.Tune-ups – Spark Plugs, Carburetor, Carburetor Adjustments, Ignition, Filters
B. Wear items – Bump Knobs, Outer Spools, Cutting
Strings, Inner Reels, Starter Pulleys, Starter Ropes, Drive
Belts, Tines, Felt Washers, Hitch Pins, Mulching Blades,
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
outdoor product without assuming any obligation to modify
any product previously manufactured.
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 NINETYDAY WARRANTY PERIOD. TECHTRONIC INDUSTRIES
NORTH AMERICA, INC.’S, OBLIGATION UNDER THIS
WARRANTY IS STRICTLY AND EXCLUSIVELY LIMITED TO
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
OF DELIVERING IT BACK TO THE OWNER, 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 gives you specific legal rights, and you may
also have other rights which vary from state to state.
This warranty applies to all RYOBI® brand outdoor products
manufactured by or for Techtronic Industries North America,
Inc., and sold in the United States and Canada.
To locate your nearest Authorized Ryobi Service
Center, dial 1-800-860-4050.
Page 40 — English
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 STATEMENT FOR FEDERAL
AND CALIFORNIA EMISSION CONTROL SYSTEMS NON-ROAD AND SMALL OFF-ROAD ENGINES
YOUR WARRANTY RIGHTS AND OBLIGATIONS
The U.S. Environmental Protection Agency (EPA), the California Air Resources Board
(CARB), and Techtronic Industries North America, Inc., are pleased to explain the
Emissions Control System Warranty on your 2010 model year non-road or small offroad engine. In California, new equipment that uses 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
three 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, catalytic converters, fuel tanks, valves, filters, clamps,
connectors, and other associated components. 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, parts, and labor performed at an authorized service center for RYOBI® brand
outdoor products.
MANUFACTURER’S WARRANTY COVERAGE:
This product’s emissions control system is warranted for three years. If any emissionrelated 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 the 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 Techtronic Industries North America, Inc.
(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 unapproved 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.
DEFECT WARRANTY COVERAGE REQUIREMENTS:
(a) The warranty period begins on the date the engine or equipment is delivered to
an ultimate purchaser.
(b) General Emissions Warranty Coverage. Techtronic Industries North America,
Inc., warrants to the ultimate purchaser and each subsequent purchaser that your
non-road or small off-road engine is designed, built, and equipped at the time of sale
to conform with all applicable regulations adopted by the California Air Resources
Board or the United States Environmental Protection Agency; and that it is free from
defects in materials and workmanship which cause the engine to fail to conform with
applicable regulations for a period of three years from the date the non-road or small
off-road engine is purchased by the initial purchaser.
(c) The warranty on emissions-related parts will be interpreted as follows: Any
warranted part that is not scheduled for replacement as required in the Emissions
Maintenance Schedule and Warranty Parts List set forth below is warranted for three
years. If any such part (including any part that is scheduled only for regular inspection)
fails during the period of warranty coverage, it will be repaired or replaced at any
RYOBI® Authorized Service Center at no charge. Any such part repaired or replaced
under warranty will be warranted for the remaining warranty period. A statement to
the effect of “repair or replace as necessary” would not reduce the period of warranty coverage. Any warranted part that is scheduled for replacement as required
maintenance in the Emissions Maintenance Schedule and Warranty Parts List is
warranted for the period of time prior to the first scheduled replacement point for
that part. Any such part repaired or replaced under warranty is warranted for the
remainder of the period prior to the first scheduled replacement point, and will be
repaired or replaced at any RYOBI® Authorized Service Center for no charge until
that replacement point is reached.
Techtronic Industries North America, Inc., shall remedy warranty defects at any
authorized RYOBI® Authorized Service Center, including any distribution center
that may be franchised to service the subject engines. Any diagnostic work done
at a RYOBI® Authorized Service Center shall be free of charge to the owner if such
work determines 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. Techtronic Industries North America, Inc., is liable for
damages to other engine components caused by the failure of a warranted part
still under warranty.
Add-on or modified parts that are not exempted by the California Air Resource Board
may not be used. The use of any non-exempted add-on or modified parts will be
grounds for disallowing a warranty claim. Techtronic Industries North America, Inc.,
will not be liable to warrant failures of warranted parts caused by the use of a nonexempted add-on or modified part.
The California Air Resources Board’s Emission Warranty Parts List specifically defines
the emission-related warranted parts. (EPA’s regulations do not include a parts list,
but the EPA considers emission-related warranted parts to include all the parts listed
below.) Techtronic Industries North America, Inc., will provide any documents that
describe its warranty procedures or policies within five days upon request by the
California Air Resources Board.
EMISSIONS PARTS LIST
Emissions parts vary from product to product. Your emissions control system warranty
applies to any of the following components that may be included on your product:
(1) Fuel Metering System
(i) Carburetor and internal parts (and/or pressure regulator or fuel injection
system).
(ii) Air/fuel ratio feedback and control system.
(iii) Cold start enrichment system.
(iv) Fuel Tank.
(2) Air Induction System
(i) Controlled hot air intake system.
(ii) Intake manifold.
(iii) Air filter.
(3) Ignition System
(i) Spark Plugs.
(ii) Magneto or electronic ignition system.
(iii) Spark advance/retard system.
(4) Exhaust Gas Recirculation (EGR) System
(i) EGR valve body and carburetor spacer, if applicable.
(ii) EGR rate feedback and control system.
(5) Air Injection System
(i) Air pump or pulse valve.
(ii) Valves affecting distribution of flow.
(iii) Distribution manifold.
(6) Catalyst or Thermal Reactor System
(i) Catalytic converter.
(ii) Thermal reactor.
(iii) Exhaust manifold.
(7) Particulate Controls
(i) Traps, filters, precipitators, and any other device used to capture particulate
emissions.
(8) Miscellaneous Items Used in Above Systems
(i) Electronic controls.
(ii) Vacuum, temperature, and time sensitive valves and switches.
(iii) Hoses, belts, connectors, and assemblies.
Techtronic Industries North America, Inc., will furnish with each new engine written
instructions for its maintenance and use by the owner.
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.
Page 41 — English
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