Ryobi RY40500 User Manual [en, es, fr]
OPERATOR’S MANUAL
MANUEL D’UTILISATION
MANUAL DEL OPERADOR
40 VOLT CHAIN SAW
SCIE À CHAÎNE 40 V
MOTOSIERRA DE 40 V
RY40500
Your chain saw 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
Cette scie à chaîne a été conçue et fabriquée conformément
aux strictes normes de fiabilité, simplicité d’emploi et sécurité
d’utilisation. Correctement entretenue, elle vous donnera des années
de fonctionnement robuste et sans problème.
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.
Merci de votre achat.
CONSERVER CE MANUEL POUR
FUTURE RÉFÉRENCE
Su motosierra inalámbrica ha sido diseñada y fabricada de conformidad con nuestras estrictas normas para
brindar fiabilidad, facilidad de uso y seguridad para el operador. Con el debido cuidado, le brindará muchos años de sólido
y eficiente funcionamiento.
ADVERTENCIA: Para reducir el riesgo de lesiones,
el usuario debe leer y comprender el manual del operador antes
de usar este producto.
Le agradecemos su compra.
GUARDE ESTE MANUAL PARA
FUTURAS CONSULTAS
TABLE OF CONTENTS
TABLE DES MATIÈRES / ÍNDICE DE CONTENIDO
Introduction .......................................................................................................................................2
Introduction / Introducción
General Power Tool Safety Warnings ............................................................................................ 3-4
Avertissements règles de sécurité relatives aux outils électriques / Advertencias de seguridad para herramientas eléctricas
Chain Saw Safety Warnings .......................................................................................................... 5-9
Avertissements de sécurité relatifs au scie à chaîne
Symbols .................................................................................................................................... 10-11
Symboles / Símbolos
Glossary of Terms ............................................................................................................................12
Glossaire / Glosario de términos
Features ..................................................................................................................................... 13-14
Caractéristiques / Características
Assembly ................................................................................................................................... 14-15
Assemblage / Armado
Operation ................................................................................................................................... 15-23
Utilisation / Funcionamiento
/ Advertencias de seguridad de la motosierra
Maintenance .............................................................................................................................. 24-31
Entretien / Mantenimiento
Bar and Chain Combinations ..........................................................................................................32
Combinaisons de guide et chaîne / Combinations de barra y cadena
Troubleshooting ............................................................................................................................... 32
Dépannage / Corrección de problemas
Warranty ..........................................................................................................................................33
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.
2
GENERAL POWER TOOL SAFETY RULES
WARNING
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions
may result in electric shock, fire and/or serious
injury.
Save all warnings and instructions for future
reference.The term “power tool” in the warnings
refers to your mains-operated (corded) power tool
or battery-operated (cordless) power tool.
WORK AREA SAFETY
Keep work area clean and well lit. Cluttered
or dark areas invite accidents.
Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power
tools create sparks which may ignite the dust
or fumes.
Keep children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
ELECTRICAL SAFETY
Power tool plugs must match the outlet.
Never modify the plug in any way. Do not use
any adapter plugs with earthed (grounded)
power tools. Unmodified plugs and matching
outlets will reduce risk of electric shock.
Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of elec-
tric shock if your body is earthed or grounded.
Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
Do not abuse the cord. Never use the cord
for carrying, pulling or unplugging the power
tool. Keep cord away from heat, oil, sharp
edges or moving parts. Damaged or entangled
cords increase the risk of electric shock.
When operating a power tool outdoors, use
an extension cord suitable for outdoor use.
Use of a cord suitable for outdoor use reduces
the risk of electric shock.
If operating a power tool in a damp location
is unavoidable, use a ground fault circuit
interrupter (GFCI) protected supply. Use of a
GFCI reduces the risk of electric shock.
PERSONAL SAFETY
Stay alert, watch what you are doing and
use common sense when operating a power
tool. Do not use a power tool while you are
tired or under the influence of drugs, alcohol
or medication. A moment of inattention while
operating power tools may result in serious
personal injury.
Use personal protective equipment. Always
wear eye protection. Protective equipment
such as dust mask, non-skid safety shoes, hard
hat, or hearing protection used for appropriate
conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the
switch is in the off-position before connecting to power source and/or battery pack,
picking up or carrying the tool. Carrying power
tools with your finger on the switch or energising power tools that have the switch on invites
accidents.
Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key
left attached to a rotating part of the power tool
may result in personal injury.
Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewel-
lery or long hair can be caught in moving parts.
If devices are provided for the connection
of dust extraction and collection facilities,
ensure these are connected and properly
used. Use of dust collection can reduce dust-
related hazards.
POWER TOOL USE AND CARE
Do not force the power tool. Use the correct
power tool for your application. The correct
power tool will do the job better and safer at the
rate for which it was designed.
3 - English
GENERAL POWER TOOL SAFETY RULES
Do not use the power tool if the switch does
not turn it on and off. Any power tool that can-
not be controlled with the switch is dangerous
and must be repaired.
Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
Store idle power tools out of the reach of
children and do not allow persons unfamiliar
with the power tool or these instructions to
operate the power tool. Power tools are dan-
gerous in the hands of untrained users.
Maintain power tools. Check for misalign-
ment or binding of moving parts, breakage of
parts and any other condition that may affect
the power tool’s operation. If damaged, have
the power tool repaired before use. Many
accidents are caused by poorly maintained
power tools.
Keep cutting tools sharp and clean. Prop-
erly maintained cutting tools with sharp cutting
edges are less likely to bind and are easier to
control.
Use the power tool, accessories and tool bits
etc. in accordance with these instructions,
taking into account the working conditions
and the work to be performed. Use of the
power tool for operations different from those
intended could result in a hazardous situation.
BATTERY TOOL USE AND CARE
Recharge only with the charger specified by
the manufacturer. A charger that is suitable for
one type of battery pack may create a risk of
fire when used with another battery pack.
Use power tools only with specifically desig-
nated battery packs. Use of any other battery
packs may create a risk of injury and fire.
When battery pack is not in use, keep it away
from other metal objects, like paper clips,
coins, keys, nails, screws or other small
metal objects, that can make a connection
from one terminal to another. Shorting the
battery terminals together may cause burns or
a fire.
Under abusive conditions, liquid may be
ejected from the battery; avoid contact. If
contact accidentally occurs, flush with water.
If liquid contacts eyes, additionally seek
medical help. Liquid ejected from the battery
may cause irritation or burns.
SERVICE
Have your power tool serviced by a qualified
repair person using only identical replacement parts. This will ensure that the safety of
the power tool is maintained.
When servicing a power tool, use only iden-
tical replacement parts. Follow instructions
in the Maintenance section of this manual.
Use of unauthorized parts or failure to follow
Maintenance instructions may create a risk of
shock or injury.
4 - English
CHAIN SAW SAFETY WARNINGS
Keep all parts of the body away from the
saw chain when the chain saw is operating.
Before you start the chain saw, make sure
the saw chain is not contacting anything. A
moment of inattention while operating chain
saws may cause entanglement of your clothing
or body with the saw chain.
Always hold the chain saw with your right
hand on the rear handle and your left hand on
the front handle. Holding the chain saw with a
reversed hand configuration increases the risk
of personal injury and should never be done.
Hold the power tool by insulated gripping
surfaces only, because the saw chain may
contact hidden wiring. Saw chains contacting
a “live” wire may make exposed metal parts of
the power tool “live” and could give the operator
an electric shock.
Wear safety glasses and hearing protec-
tion. Further protective equipment for head,
hands, legs and feet is recommended.
Adequate protective clothing will reduce per-
sonal injury by flying debris or accidental contact with the saw chain.
Do not operate a chain saw in a tree. Opera-
tion of a chain saw while up in a tree may result
in personal injury.
Always keep proper footing and operate
the chain saw only when standing on fixed,
secure and level surface. Slippery or unstable
surfaces such as ladders may cause a loss of
balance or control of the chain saw.
When cutting a limb that is under tension be
alert for spring back. When the tension in the
wood fibres is released the spring loaded limb
may strike the operator and/or throw the chain
saw out of control.
Use extreme caution when cutting brush and
saplings. The slender material may catch the
saw chain and be whipped toward you or pull
you off balance.
Carry the chain saw by the front handle with
the chain saw switched off and away from
your body. When transporting or storing the
chain saw always fit the guide bar cover.
Proper handling of the chain saw will reduce the
likelihood of accidental contact with the moving
saw chain.
Follow instructions for lubricating, chain ten-
sioning and changing accessories. Improperly
tensioned or lubricated chain may either break
or increase the chance for kickback.
Keep handles dry, clean, and free from oil
and grease. Greasy, oily handles are slippery
causing loss of control.
Cut wood only. Do not use chain saw for
purposes not intended. For example: do not
use chain saw for cutting plastic, masonry
or non-wood building materials. Use of the
chain saw for operations different than intended
could result in a hazardous situation.
CAUSES AND OPERATOR
PREVENTION OF KICKBACK
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 sudden
reverse reaction, kicking the guide bar up and back
towards the operator.
Pinching the saw chain along the top of the guide
bar may push the guide bar rapidly back towards
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 your saw. As a chain saw
user, you should take several steps to keep your
cutting jobs free from accident or injury.
Kickback is the result of tool misuse and/or incorrect operating procedures or conditions and can
be avoided by taking proper precautions as given
below:
Maintain a firm grip, with thumbs and fingers
encircling the chain saw handles, with both
hands on the saw and position your body and
arm to allow you to resist kickback forces.
Kickback forces can be controlled by the operator, if proper precautions are taken. Do not let
go of the chain saw.
Do not overreach and do not cut above shoul-
der height. This helps prevent unintended tip
contact and enables better control of the chain
saw in unexpected situations.
5 - English
CHAIN SAW SAFETY WARNINGS
Only use replacement bars and chains
specified by the manufacturer. Incorrect
replacement bars and chains may cause chain
breakage and/or kickback.
Follow the manufacturer’s sharpening and
maintenance instructions for the saw chain.
Decreasing the depth gauge height can lead to
increased kickback.
Do not start cutting until you have a clear work
area, secure footing, and a planned retreat path
from the falling tree. Cluttered areas invite accidents.
Keep ALL children, bystanders, visitors, and
animals out of the work area while starting or
cutting with the chain saw. Do not let visitors
contact chain saw or extension cord.
Do not operate chain saw in explosive atmo-
spheres, such as in the presence of flammable
liquids, gases, or dust. Chain saws create
sparks which may ignite the dust or fumes.
Dress Properly - Wear snug fitting clothing.
Always wear heavy, long pants, long sleeves,
overalls, jeans or chaps made of cut resistant
material or ones that contain cut resistant
inserts. Wear non-slip safety footwear. Wear
non-slip heavy duty gloves to improve your
grip and to protect your hands. Do not wear
jewelry, short pants, sandals, or go barefoot.
Do not wear loose fitting clothing, which could
be drawn into the motor or catch the chain or
underbrush. Secure hair so it is above shoulder
level. Wear hearing and head protection.
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.
Always wear eye protection with side shields
marked to comply with ANSI Z87.1 as well as
head and hearing protection when operating
this equipment.
Always be aware of what you are doing when
using the chain saw. Use common sense. Do
not operate the chain saw when you are tired,
ill, or under the influence of alcohol, drugs, or
medication.
Do not expose the chain saw to rain.
Do not use the chain saw in damp or wet loca-
tions.
Always be aware of extension cord while oper-
ating chain saw. Take precautions to avoid
tripping over cord. Keep cord away from chain
and operator at all times. Never carry saw by
the cord or pull it to disconnect from receptacle.
Keep cord from oil and sharp edges.
Stay alert and pay attention to what you are
doing. Use common sense when using this unit.
Keep all parts of your body away from the saw
chain when the unit is running.
Never let anyone use your chain saw who has
not received adequate instructions in its proper
use. This applies to rentals as well as privately
owned saws.
Before you start the unit, make sure the saw
chain is not contacting any object.
Stop the chain saw before setting it down.
To avoid accidental starting, never carry the unit
with your finger on the switch trigger.
Maintain the unit with care. Keep the cutting
edge sharp and clean for best performance and
to reduce the risk of injury. Follow instructions
for lubricating and changing accessories.
Do not operate a chain saw with one hand! Use
a firm grip with thumbs and fingers encircling the
chain saw handles. 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 twohanded use.
Guard against electric shock - Avoid body con-
tact with grounded surfaces such as metal pipes
and wire fences. There is an increased risk of
electric shock if your body is grounded.
Do not operate a chain saw that is damaged,
improperly adjusted, or not completely and
securely assembled. Chain should slow to a
stop when the switch trigger is released. If the
chain continues to turn after the switch trigger
has been released, have the unit serviced by an
authorized service center.
Check for damaged parts. Check for alignment
of moving parts, binding of moving parts, breakage of parts, mounting, and any other conditions that may affect its operation. A guard or
6 - English
CHAIN SAW SAFETY WARNINGS
other part that is damaged should be properly
repaired or replaced by an authorized service
center unless otherwise indicated elsewhere in
this manual.
All chain saw service, other than the items listed
in the operation and maintenance sections,
should be performed by an authorized service
center.
Always maintain a proper stance.
Do not use chain saw if switch does not turn it
on and off. Have defective switch replaced by
an authorized service center.
Do not adapt your powerhead to a bow guide
or use it to power any attachments or devices
not listed for the saw.
Disconnect chain saw from power supply when
not in use, before servicing, and when making
adjustments and changing attachments, such
as saw chain and guard.
Do not cut vines and/or small underbrush.
Do not operate a chain saw in a tree, on a ladder,
rooftop, scaffold, or other unstable support; this
is extremely dangerous.
NOTE: The size of the work area depends on the
job being performed as well as the size tree or
work piece involved. For example, felling a tree
requires a larger work area than making bucking
cuts.
Do not force the chain saw. The job can be per-
formed better and safer at the rate for which it
was intended.
Always use the right product for your applica-
tion. The chain saw should be used for cutting
wood only. Never use the chain saw to cut plastic, masonry or non-wood building materials.
Store chain saw when not in use. Chain saw
should be stored in a dry and high or locked
area out of the reach of children. When storing
chain saw place the scabbard on the bar and
chain and store the chain saw in carrying case.
Use only with battery and charger listed. For use
with 40V lithium-ion battery packs. See Tool/
Appliance/Battery Pack/Charger Correlation
Supplement 988000842.
NOTE: Although the chain saw will work
with all battery packs listed on the correlation supplement, for best performance, avoid
using first generation Ryobi 40V lithium-ion
batteries [OP4026 (part numbers 130186012
or 130186006) and OP4015 (part number
1300208001)]. The chain speed will be significantly reduced if these batteries are used.
Battery operated units do not have to be
plugged into an electrical outlet; therefore, they
are always in operating condition. Be aware
of possible hazards even when unit is not
operating.
Remove the battery pack from the chain saw
before cleaning, servicing, storing, removing
material from the unit, changing accessories
such as the bar and chain, or when not in use.
Save these instructions. Refer to them fre-
quently and use them to instruct others who
may use this product. If you loan someone this
product, loan them these instructions also.
7 - English
CHAIN SAW SAFETY WARNINGS
KICKBACK
See Figures 1 - 4.
WARNING: Kickback may occur 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
several steps to keep your cutting jobs free from
accident or injury.
The following precautions should be followed
to minimize kickback:
• Always grip the saw firmly with both hands.
Hold the saw firmly with both hands when
the unit 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.
• Always cut with the unit running at full speed.
Fully squeeze the throttle trigger and maintain
a steady cutting speed.
SAFE-T-TIP®
ANTI-KICKBACK
NOSE GUARD
Fig. 1
ROTATIONAL
KICKBACK
Fig. 2
KICKBACK
DANGER ZONE
Fig. 3
PULL
• Use replacement parts such as low kickback
chain, chain brakes, SAFE-T-TIP® anti-kickback nose guards special guide bars that
reduce the risks associated with rotational
kickback. Use only the replacement guide
bars and low kickback chains specified by
the manufacturer for the saw.
8 - English
PUSH
Fig. 4
CHAIN SAW SAFETY WARNINGS
With a basic understanding of kickback, you
can reduce or eliminate the element of surprise.
Sudden surprise contributes to accidents.
Keep proper footing and balance at all times.
Do not cut above shoulder height or overreach
when cutting.
Keep the 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.
Push and Pull - This reaction force is always
opposite to the direction the chain is moving
where wood contact is made. Thus, the operator
must be ready to control the PULL when cutting
on the bottom edge of the bar, and PUSH when
cutting along the top edge. See Figure 4.
UNDERSTANDING YOUR CHAIN SAW
SAFETY DEVICES
SAFE-T-TIP® ANTI-KICKBACK NOSE
GUARD
See Figure 1.
The SAFE-T-TIP® prevents kickback from happening, because it covers the tip of the bar where
kickback is generated. Never attempt any kind of
cutting where the SAFE-T-TIP® would have to be
removed from the bar tip.
LOW KICKBACK SAW CHAIN
The rakers (depth gauges) ahead of each cutter
can minimize the force of a kickback reaction by
preventing the cutters from digging in too deeply
at the kickback zone. Only use replacement chain
that is equivalent to original chain or has been
certified as low kickback chain per ANSI B175.1.
Low kickback saw chain is chain that has met
the kickback performance requirements of ANSI
B175.1 - 1991 (American National Standard
for Power Tools - Gasoline-Powered Chain
Saws-Safety Requirements) when tested on the
representative sample of chain saws below 3.8
c.i.d. specified in ANSI B175.1 - 1991.
As saw chains are sharpened during their useful
life, they lose some of the low kickback qualities
and extra caution should be used.
GUIDE BARS
Generally, guide bars with small radius tips have
somewhat lower kickback potentials.
When making a replacement, be sure to order
one of the RYOBI bars listed for the saw in this
operator’s manual.
The proper size SAFE-T-TIP® nose guard comes
installed on the bar. Use only guide bars that have
a provision for mounting the SAFE-T-TIP®.
SAVE THESE INSTRUCTIONS
9 - English
SYMBOLS
The following signal words and meanings are intended to explain the levels of risk associated with
this product.
SYMBOL SIGNAL MEANING
DANGER:
WARNING:
CAUTION:
NOTICE:
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.
Indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
Indicates a potentially hazardous situation, which, if not avoided,
could result in death or serious injury.
Indicates a potentially hazardous situation, which, if not avoided,
may result in minor or moderate injury.
(Without Safety Alert Symbol) Indicates important information not
related to an injury hazard, such as a situation that may result in
property damage.
SYMBOL NAME DESIGNATION/EXPLANATION
Safety Alert Indicates a potential personal injury hazard.
Read Operator’s Manual
Eye and Head Protection
SAFE-T-TIP® Nose
Guard
Wet Conditions Alert Do not expose to rain or use in damp locations.
Operate With Two
Hands
One Handed Do not operate the saw using only one hand.
To reduce the risk of injury, user must read and
understand operator’s manual before using this product.
Always wear eye protection with side shields marked
to comply with ANSI Z87.1, along with head protection
The SAFE-T-TIP® nose guard on the guide bar helps
prevent rotational kickback.
Hold and operate the saw properly with both hands.
10 - 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
Kickback DANGER! BEWARE OF KICKBACK.
Bar Nose Contact Avoid bar nose contact.
Wear Gloves
Wear Safety Footwear
Keep Bystanders
Away
Oil Indicator
Recycle Symbol
V Volts Voltage
Direct Current Type or a characteristic of current
Wear non-slip, heavy-duty protective gloves when
handling the chain saw.
Wear non-slip safety footwear when using this
equipment.
Keep all bystanders and animals at least 50 ft. away.
Pour bar and chain lubricant into oil tank where
indicated. Do not use any other fluids.
This product uses lithium-ion batteries. Local, state or
federal laws may prohibit disposal of batteries in ordinary
trash. Consult your local waste authority for information
regarding available recycling and/or disposal options.
11 - English
GLOSSARY OF TERMS
Bucking
The process of cross cutting a felled tree or log
into lengths.
Chain Saw Powerhead
A chain saw without the saw chain and guide bar.
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.
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.
Lock-out button
A movable stop that prevents the unintentional
operation of the switch until manually actuated.
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 switch trigger.
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.
Switch Trigger
A device that when operated will complete or
interrupt an electrical power circuit to the motor
of the chain saw.
12 - English
FEATURES
PRODUCT SPECIFICATIONS
Motor ....................................................................................................................................40 Volt DC
Bar Length .................................................................................................................................... 12 in.
Cutting Capacity.............................................................................................................................9 in.
Felling Capacity .............................................................................................................................. 7 in.
Chain oil tank capacity .................................................................................................................. 5 oz.
NOTE: This saw was designed for occasional light duty use and has some limitations as to what it
can cut.
FRONT HAND
GUARD
GUIDE
BATTERY PACK
CHAIN
COVER
BAR
REAR
HANDLE
SCABBARD
LOW KICKBACK
CHAIN
CHAIN COVER
LOCK KNOB
CHAIN
TENSIONING KNOB
FRONT HANDLE
SWITCH TRIGGER
BATTERY PACK
SAFE-T-TIP©
LOCK-OUT
BUTTON
CHAIN OIL
TANK CAP
QUICK VIEW OIL
INDICATOR
13 - English
Fig. 5
FEATURES
KNOW YOUR CHAIN SAW
See Figure 5.
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.
CHAIN TENSIONING KNOB
This feature allows user to adjust the tension of
the chain.
GUIDE BAR
The factory-equipped guide bar has a small radius
tip that offers a somewhat lower kickback potential.
LOW KICKBACK CHAIN
The low kickback chain helps minimize the force
of a kickback reaction by preventing the cutters
from digging in too deeply at the kickback zone.
QUICK VIEW OIL INDICATOR
Semi-transparent oil reservoir that allows user to
see when to add oil.
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.
LOCK-OUT BUTTON
A control feature designed to prevent the motor
from being accidently started.
SWITCH TRIGGER
Squeeze the switch trigger to operate the unit after
switch lock-out has been pushed in. Release the
switch trigger to stop the unit.
ASSEMBLY
UNPACKING
This product has been shipped completely
assembled.
Carefully remove the product and any acces-
sories from the box. Make sure that all items
listed in the packing list are included.
WARNING:
Do not use this product if any parts on the Packing List are already assembled to your product
when you unpack it. Parts on this list are not
assembled to the product by the manufacturer
and require customer installation. Use of a product that may have been improperly assembled
could result in serious personal injury.
Inspect the product carefully to make sure no
breakage or damage occurred during shipping.
Do not discard the packing material until you
have carefully inspected and satisfactorily operated the product.
If any parts are damaged or missing, please call
1-800-860-4050 for assistance.
PACKING LIST
Chain Saw with Scabbard
Bar and Chain Lubricant
Operator’s Manual
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.
14 - English
ASSEMBLY
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.
OPERATION
DANGER:
Never cut near power lines, electric cords, or
other electric sources. If bar and chain jams
on any electrical cord or line, DO NOT TOUCH
THE BAR OR CHAIN! THEY CAN BECOME
ELECTRICALLY LIVE AND VERY DANGEROUS.
Continue to hold the chain saw by the insulated
rear handle or lay it down and away from you in
a safe manner. Disconnect the electrical service
to the damaged line or cord before attempting
to free the bar and chain from the line or cord.
Contact with the bar, chain, other conductive
parts of the chain saw, or live electric cords or
lines will result in death by electrocution, electric
shock, or serious personal injury.
WARNING:
To prevent accidental starting that could cause
serious personal injury, always remove the battery pack from the product when assembling
parts.
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.
WARNING:
Never fell a tree or cut a log or limb that has a
diameter greater that the length of the guide
bar. Only properly trained professionals should
perform these cuts. Performing these types of
cuts can cause an accident and result in death
or serious personal injury.
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:
Always wear eye protection with side shields
marked to comply with ANSI Z87.1, along with
head protection. Failure to do so could result in
objects being thrown into your eyes and other
possible serious injuries.
15 - English
Before each use, inspect the entire product for
damaged, missing, or loose parts such as screws,
nuts, bolts, caps, etc. Tighten securely all fasteners
and caps and do not operate this product until all
missing or damaged parts are replaced. Please call
1-800-860-4050 or contact an authorized service
center for assistance.
APPLICATIONS
You may use this product for the following purposes:
Limbing and pruning branches from trees
Felling small trees up to 7 in. diameter
Bucking the fallen tree into shorter lengths
This product will accept Ryobi 40 V lithium-ion
battery packs.
For complete charging instructions, refer to the
Operator’s Manual for your Ryobi 40 V battery
pack and charger model.
OPERATION
TO INSTALL / REMOVE BATTERY PACK
See Figure 6.
WARNING:
Always remove battery pack from your tool
when you are assembling parts, making adjustments, cleaning, carrying, transporting or when
not in use. Removing battery pack will prevent
accidental starting that could cause serious
personal injury.
NOTE: To avoid serious personal injury, always
remove the battery pack and keep hands clear of
the look-out button when carrying or transporting
the tool.
To install:
Place the battery pack in your chain saw. Align
raised rib on battery pack with groove in chain
saw’s battery port.
NOTICE:
When placing battery pack in your chain saw,
be sure raised rib on battery pack aligns with
groove in chain saw’s battery port and latches
snap in place properly. Improper assembly of
battery pack can cause damage to internal
components.
Make sure the latch on bottom side of the bat-
tery pack snaps in place and that battery pack is
secured in chain saw before beginning operation.
BATTERY
PORT
BATTERY
PACK
LATCH
Fig. 6
Fig. 7
NOTICE:
Remove battery pack from unit. Fill oil tank with
Ryobi Bar and Chain Lubricant before starting
the chain saw. Failure to lubricate the chain will
cause damage to the bar and chain.
CHAIN OIL SYSTEM
See Figure 7.
WARNING:
Make sure the latch on the bottom of the battery pack snaps in place and the battery pack
is fully seated and secure in the chain saw battery port before beginning operation. Failure
to securely seat the battery pack could cause
the battery pack to fall out, resulting in serious
personal injury.
To remove:
Locate latch on bottom of battery pack and depress
both sides to release the battery pack from the
chain saw.
16 - English
Use Ryobi Bar and Chain Lubricant. It is formu-
lated to perform over a wide temperature range
with no dilution required.
NOTE: Do not use dirty, used or otherwise contam-
inated oils. Damage may occur to the bar or chain.
Carefully pour the bar and chain oil into the tank.
Check and fill the oil tank when battery is
recharged, or as needed.
NOTE: It is normal for lubricant to seep from the
saw when not in use. To prevent seepage, empty
the oil tank after each use. When storing the unit
for a long period of time (three months or longer) be
sure the chain is lightly lubricated; this will prevent
rust on the chain and bar sprocket.
OPERATION
STARTING AND STOPPING THE CHAIN
SAW
See Figure 8.
WARNING:
Keep body to the left of the chain line. Never
straddle the saw or chain, or lean over past the
chain line.
Starting the chain saw:
Place the chain saw on a flat bare surface and
make sure no objects or obstructions are in
immediate vicinity which could come in contact
with the bar and chain.
Press and hold the lock-out button. This makes
the switch trigger operational.
Press and hold the switch trigger, release the
lock-out button and continue to squeeze the
switch trigger for continued operation.
Stopping the chain saw:
Release the switch trigger to stop the chain saw.
Upon release of the switch trigger, the lock-out
button will be automatically reset to the lock
position.
This cordless chain saw is not designed for cutting
trees larger than 7 in. in diameter.
This cordless chain saw is designed for limbing
and pruning type cutting, as well as cutting trees
up to 7 in. in diameter only.
Do not attempt to make any cut that would require
removal of the SAFE-T-TIP
®
.
PREPARATION FOR CUTTING
PROPER GRIP ON HANDLES
See Figures 9 - 11.
LOCK-OUT
BUTTON
SWITCH
TRIGGER
SWITCH
TRIGGER
LOCK-OUT
BUTTON
Fig. 8
Refer to GENERAL POWER TOOL SAFETY
RULES earlier in this manual for appropriate safety
equipment.
Wear non-slip gloves for maximum grip and
protection.
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.
17 - English
Fig. 9
OPERATION
WARNING:
Never use a left-handed (cross-handed) grip,
or any stance which would place your body or
arm across the chain line.
Maintain a proper grip on the saw whenever
the unit 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.
WARNING:
Do not operate the switch 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. 10
PROPER CUTTING STANCE
See Figures 12 - 13.
WARNING:
Always use the proper cutting stance described
in this section. Never kneel when using the
chain saw, except when felling a tree as illustrated in Figure 13. Kneeling could result in loss
of stability and control of the chain saw, resulting in serious personal injury.
Weight should be balanced with both feet on
solid ground.
Keep left arm with elbow locked in a “straight
arm” position to withstand any kickback force.
Your body should always be to the left of the
chain line.
Thumb should be on underside of handlebar.
BASIC CUTTING PROCEDURE
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.
CHAIN LINE
Fig. 11
STRAIGHT ARM
POSITION
Fig. 12
18 - English
Fig. 13
OPERATION
45°
45°
Take the proper stance in front of the wood with
the saw off.
Squeeze the switch trigger and let the chain
accelerate to full speed before entering the cut.
Begin cutting with the saw against the log.
Keep the unit running the entire time you are
cutting, maintain a steady speed.
Allow the chain to cut for you; exert only light
downward pressure. If you force the cut, damage to the bar, chain, or unit can result.
Release the switch trigger as soon as the cut is
completed, allowing the chain to stop. If you run
the saw without a cutting load, unnecessary wear
can occur to the chain, bar, and unit.
Do not put pressure on the saw at the end of cut.
WORK AREA PRECAUTIONS
See Figure 14.
Cut only wood or materials made from wood, no
sheet metal, no plastics, no masonry, no nonwood building materials.
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.
When felling a tree, 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. Trees should not be felled in a
manner that would endanger any person, strike
any utility line or cause any property damage. If
the tree does make contact with any utility line, the
utility company should be notified immediately.
Always cut with both feet on solid ground to pre-
vent being pulled off balance.
Do not cut above chest height, as a saw held high-
er is difficult to control against kickback forces.
Do not fell trees near electrical wires or buildings.
Leave this operation for professionals.
Cut only when visibility and light are adequate for
you to see clearly.
RETREAT PATH
PLANNED LINE
OF FALL
RETREAT PATH
Fig. 14
FELLING TREES
See Figures 14 - 17.
HAZARDOUS CONDITIONS
WARNING:
Do not fell trees during periods of high wind or
heavy precipitation. Wait until the hazardous
weather has ended.
WARNING:
Closely check for broken or dead branches,
which could fall while cutting and do not cut
near buildings or electrical wires if you do not
know the direction of tree fall. Do not cut at
night or during bad weather conditions, such as
rain, snow, or strong winds, which can reduce
visibility and control of the chain saw. If the tree
you are felling makes contact with any utility
line, you should discontinue use of the chain
saw and immediately notify the utility company.
Failure to follow these instructions could result
in death or serious personal injury.
19 - English
OPERATION
When felling a tree, it is important that you follow
these warnings and instructions to prevent possible serious injury.
■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.
■Do not cut trees near electrical wires or buildings.
■Check the tree for damaged or dead branches
that could fall and hit you during felling.
■Periodically glance at the top of the tree during
the backcut to assure the tree is going to fall in
the desired direction.
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!
Felling a tree - When bucking and felling operations are being performed by two or more persons, at the same time, the felling operation
should be separated from the bucking operation
by a distance of at least twice the height of the
tree being felled. Trees should not be felled in a
manner that would endanger any person, strike
any utility line or cause any property damage. If
the tree does make contact with any utility line, the
utility company should be notified immediately.
Before any cuts are started, 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 path of
safe retreat approximately 135° from planned
line of fall. The retreat path should extend back
and diagonally to the rear of the expected line
of fall. See Figure 14.
Before felling is started, 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.
The chain saw operator should keep on the
uphill side of the terrain as the tree is likely to
roll or slide downhill after it is felled.
Remove dirt, stones, loose bark, nails, staples,
and wire from the tree where felling cuts are to
be made.
BACK CUT
2 in.
BACK CUT
HINGE
WEDGE
KICKBACK
HINGE
2 in. OR 1/10 DIA
NOTCH -
APPROX. 1/3
DIAMETER OF
TRUNK
Fig. 15
NOTCH
Fig. 16
Fig. 17
Fig. 18
20 - English
OPERATION
Notched Undercut. Cut a notch about 1/3 the
diameter of the tree, perpendicular to the direction of fall. Make the cuts of the notch 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. See Figure 15.
Felling Backcut. The backcut is always made lev-
el and horizontal, and at a minimum of 2 in. above
the horizontal cut of the notch. See Figures 15 - 16.
Never cut through to the notch. Always leave a
band of wood between the notch and backcut
(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 shoot-back of the tree off the
stump. See Figures 15 - 16.
On 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. The wedges can
be driven in, little by little, to help jack the tree
over. See Figure 17.
NOTE: When bucking or felling with a wedge, it
may be necessary to remove the SAFE-T-TIP®
anti-kickback nose guard to allow the bar to be
drawn through the cut. After the cut is complete,
the tip should be reinstalled immediately.
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. Be alert for overhead limbs or
branches that may fall and watch your footing.
LOG SUPPORTED AT ONE END:
FINISHING CUT
LOG SUPPORTED AT BOTH ENDS:
LOAD
FINISHING CUT
OVERBUCKING
Fig. 19
LOAD
1ST CUT
1/3 DIA
1ST CUT 1/3 DIA
Fig. 20
WARNING:
Never cut through to the notch when making a
backcut. The hinge controls the fall of the tree,
this is the section of wood between the notch
and backcut.
BUCKING
See Figures 18 - 21.
Bucking is the term used for cutting a fallen tree
to the desired log length.
Always make sure your footing is secure and
your weight is distributed evenly on both feet.
21 - English
UNDERBUCKING
Fig. 21
OPERATION
■ Cut only one log at a time.
■ Support small logs on a saw horse or another
log while bucking.
■ 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® antikickback nose guard attached while cutting.
Refer to Precautions Against Kickback earlier
in this manual.
When bucking on a slope, always stand on the
uphill side of the log. To maintain complete control of the chain saw when cutting through the
log, release the cutting pressure near the end of
the cut without relaxing your grip on the chain
saw handles. Do not let the chain contact the
ground. After completing the cut, wait for the
saw chain to stop before you move the chain
saw. Always stop the motor before moving from
tree to tree.
■ Sometimes it is impossible to avoid pinching
(with just standard cutting techniques) or difficult
to predict which way a log will settle when cut.
To avoid pinching while cutting, rotate or move
the log so that the pinch is eliminated.
BUCKING LOGS UNDER STRESS
See Figures 20 - 21.
When the log is supported along its entire length,
it should be cut from the top or overbucking.
When the log is supported on one end, cut 1/3
the diameter from the underside or underbucking. Then make the finishing cut by overbucking
to meet the first cut.
As the log is being cut, 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.
When bucking on a slope, always stand on the uphill
side of the log as shown in figure 18. When “cutting
through,” to maintain complete control of the chain
saw, release the cutting pressure near the end of
the cut without relaxing your grip on the chain saw
handles. Do not let the chain contact the ground.
After completing the cut, wait for the saw chain
to stop before you move the chain saw. Always
stop the motor before moving from tree to tree.
TYPES OF CUTTING USED
See Figure 21.
OVERBUCKING
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.
UNDERBUCKING
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.
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.
LIMBING
See Figure 22.
Limbing is removing branches from a fallen tree.
Work slowly, keeping both hands on the chain
saw with a firm grip. Always make sure your
footing is secure and your weight is distributed
evenly on both feet.
Leave the larger support limbs under the tree to
keep the tree off the ground while cutting.
Limbs should be cut one at a time. Remove the
cut limbs from the work area often to help keep
the work area clean and safe.
Branches under tension should be cut from the
bottom up to avoid binding the chain saw.
Keep the tree between you and the chain saw
while limbing. Cut from the side of the tree
opposite the branch you are cutting.
22 - English
3
OPERATION
PRUNING
See Figure 23.
Pruning is trimming limbs from a live tree.
Work slowly, keeping both hands on the chain
saw with a firm grip. Always make sure your
footing is secure and your weight is distributed
evenly on both feet.
Do not cut from a ladder, this is extremely dan-
gerous. Leave this operation for professionals.
Do not cut above chest height as a saw held
higher is difficult to control against kickback.
When pruning trees it is important not to make
the finishing 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.
Your second cut should overbuck to drop the
branch off.
Now make your finishing cut smoothly and
neatly against the main member so the bark will
grow back to seal the wound.
2
1
4
CUT LIMBS ONE AT A TIME AND LEAVE SUPPORT LIMBS
LOAD
FIRST CUT
1/3 DIAMETER
FINISHING CUT
UNDER TREE UNTIL LOG IS CUT
SECOND CUT
Fig. 22
Fig. 23
WARNING:
If the limbs to be pruned are above chest height,
hire a professional to perform the pruning. Failure to do so could result in serious personal
injury.
SPRINGPOLES
See Figure 24.
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.
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.
SPRINGPOLE
Fig. 24
23 - English
MAINTENANCE
WARNING:
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
head protection. Failure to do so could result in
objects being thrown into your eyes and other
possible serious injuries.
WARNING:
To avoid serious personal injury, always remove the
battery pack from the product when cleaning
or performing any maintenance.
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.
BATTERY PACK REMOVAL AND
PREPARATION FOR RECYCLING
WARNING:
Upon removal, cover the battery pack’s terminals with heavy-duty adhesive tape. Do not
attempt to destroy or disassemble battery pack
or remove any of its components. Lithium-ion
and nickel-cadmium batteries must be recycled
or disposed of properly. Also, never touch both
terminals with metal objects and/or body parts
as short circuit may result. Keep away from
children. Failure to comply with these warnings
could result in fire and/or serious injury.
GENERAL MAINTENANCE
Before each use, inspect the entire product for
damaged, missing, or loose parts such as screws,
nuts, bolts, caps, etc. Tighten securely all fasteners
and caps and do not operate this product until all
missing or damaged parts are replaced. Please call
1-800-860-4050 or contact an authorized service
center for assistance.
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.
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.
REPLACING BAR AND CHAIN
See Figures 25 - 31.
WARNING:
Remove the battery pack from the chain saw and
make sure the chain has stopped before you do
any work on the saw. Failure to do so may result
in accidental starting and possible serious injury.
WARNING:
The safety instructions in this section are to
protect the user from serious personal injury.
CAUTION:
Always wear gloves when handling the bar and
chain; these components are sharp and may
contain burrs.
WARNING:
Never touch or adjust the chain while the motor
is running. The saw chain is very sharp; always
wear protective gloves when performing maintenance to the chain to avoid possible serious
lacerations.
24 - English
MAINTENANCE
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.
Remove the battery pack before you do any
work on the chain saw.
Rotate the chain cover lock knob counterclock-
wise and remove knob.
Remove the chain cover.
Remove the bar and chain from the mounting
surface.
Remove the old chain from the bar.
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.
Place the chain drive links into the bar groove as
shown.
NOTE: Make certain of direction of chain.
Position the chain so there is a loop at the back
of the bar.
Hold the chain in position on the bar and place
the loop around the sprocket.
Fit the bar flush against the mounting surface so
that the bar studs are in the long slot of the bar.
WARNING:
When placing the bar on the bar studs, ensure
that the chain tensioning pin is in the chain tension pin hole. Failure to properly place the chain
tensioning pin in the chain tensioning pin hole
could cause the chain to come loose, resulting
in serious personal injury.
CHAIN
TENSIONING
KNOB
MOUNTING
SURFACE
CUTTERS
CHAIN COVER
LOCK KNOB
Fig. 25
CHAIN
CHAIN
COVER
BAR
CHAIN COVER
LOCK KNOB
Fig. 26
CHAIN ROTATION
25 - English
CHAIN DRIVE LINKS
Fig. 27
MAINTENANCE
Replace the chain cover.
Replace the chain cover lock knob; rotate knob
clockwise to tighten. The bar should still be free
to move for tension adjustment.
Remove all slack from the chain by turning the
chain tensioning knob clockwise until the chain
seats snugly against the bar with the drive links
in the bar groove.
Lift the tip of the guide bar up to check for sag.
Release the tip of the guide bar and turn the
chain tensioning knob 1/2 turn clockwise.
Repeat this process until sag does not exist.
Hold the tip of the guide bar up and tighten the
chain cover lock knob.
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.
CHAIN DRIVE
LINKS
BAR
GROOVE
Fig. 28
BAR STUDS
CHAIN
COVER
NOTE: If chain is too tight, it will not rotate. Loosen
the chain cover lock knob slightly and turn the
chain tensioning knob 1/4 turn counterclockwise.
Lift the tip of the guide bar up and retighten the
chain cover lock knob. Ensure that the chain will
rotate without binding.
CHAIN
TENSION PIN
HOLE
COVER LOCK
CHAIN
TENSIONING
PIN
CHAIN
KNOB
Fig. 29
26 - English
MAINTENANCE
ADJUSTING THE CHAIN TENSION
See Figures 31 - 32.
WARNING:
Never touch or adjust the chain while the motor
is running. The saw chain is very sharp. Always
wear protective gloves when performing maintenance on the chain.
Remove the battery pack before you do any
work on the chain saw.
Slightly loosen the chain cover lock knob.
Turn the chain tensioning knob 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.
Rotate the chain cover lock knob clockwise to
secure.
LIFT THE TIP OF
THE GUIDE BAR
UP TO CHECK FOR
SAG
Fig. 30
Retension the chain whenever the flats on the drive
links hang out of the bar groove.
NOTE: During normal saw operation, the tem-
perature of the chain increases. The drive links
of a correctly tensioned warm chain will hang
approximately .050 in. out of the bar groove.
NOTE: New chains tend to stretch; check the
chain tension frequently and tension as required.
NOTICE:
A chain tensioned while warm may be too tight
upon cooling. Check the “cold tension” before
next use.
CHAIN
TENSIONING
KNOB
FLATS
CHAIN COVER
LOCK KNOB
Fig. 31
APPROX. .050 in.
27 - English
Fig. 32
MAINTENANCE
CHAIN MAINTENANCE
See Figures 33 - 35.
WARNING:
Remove the battery pack and make sure the chain
has stopped before you do any work on the saw.
Use only low-kickback chain on this saw. This
fast-cutting chain will provide kickback reduction
when properly maintained.
For smooth and fast cutting, chain needs to be
maintained 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 your chain, consider the following:
Improper filing angle of the side plate can
increase the risk of a severe kickback.
Raker (depth gauge) clearance.
Too low increases the potential for kickback.
Not low enough decreases cutting ability.
If cutter teeth have hit hard objects such as nails
and stones, or have been abraded by mud or sand
on the wood, have service dealer sharpen 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 a Ryobi Service dealer.
CHECK FOR WEAR
OR DAMAGE
TOP PLATE
RIVET HOLE
HEEL
RAKER CLEARANCE
.025 in.
Fig. 33
Fig. 34
CUTTING
CORNER
SIDE PLATE
DEPTH GAUGE
TOE
28 - English
GULLET
Fig. 35
MAINTENANCE
HOW TO SHARPEN THE CUTTERS
See Figures 36 - 37.
Be careful to file all cutters to the specified angles
and to the same length, as fast cutting can be
obtained only when all cutters are uniform.
Wear gloves for protection. Properly tension
the chain prior to sharpening. Refer to Chain
Tension Section earlier in this manual. Do all
of your filing at the mid-point of the bar.
Use a 5/32 in. diameter round file and holder.
Keep the file level with the top plate of the tooth.
Do not let the file dip or rock.
Using light but firm pressure, stroke towards the
front corner of the tooth.
Lift file away from the steel on each return stroke.
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. Occasionally remove filings
from the file with a wire brush.
LEFT HAND
CUTTERS
RIGHT HAND
CUTTERS
Fig. 36
Fig. 37
WARNING:
Improper chain sharpening increases the potential of kickback.
WARNING:
Failure to replace or repair damaged chain can
cause serious injury.
WARNING:
The saw chain is very sharp, always wear protective gloves when performing maintenance
to the chain.
TOP PLATE FILING ANGLE
See Figure 38.
CORRECT 30° - File holders are marked with
guide marks to align file properly to produce
correct top plate angle.
CORRECT TOP PLATE
FILING ANGLE
30°
INCORRECT TOP PLATE FILING
ANGLE
LESS
THAN 30°
MORE
THAN 30°
Fig. 38
LESS THAN 30° - For Cross Cutting.
MORE THAN 30° - Feathered Edge Dulls Quickly.
29 - English
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