Ryobi P545 User Manual
OPERATOR’S MANUAL
MANUEL D’UTILISATION
MANUAL DEL OPERADOR
18 VOLT CHAIN SAW
SCIE À CHAÎNE 18 V
MOTOSIERRA DE 18 V
P545
ACCEPTS ALL ONE+ BATTERY PACKS
BATTERIES AND CHARGERS SOLD SEPARATELY
COMPATIBLE AVEC TOUS LE BATTERIES ONE+
PILES ET CHARGEUR VENDUS SÉPARÉMENT
ACEPTA TODOS LOS PAQUETES DE BATERÍAS ONE+
LAS BATERÍAS Y EL CARGADOR SE VENDEN POR SEPARADO
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 Safety Rules ..................................................................................................................... 3-5
Règles de sécurité générales / Reglas de seguridad generales
Specific Safety Rules ........................................................................................................................6
Règles de sécurité particulières / Reglas de seguridad específicas
Symbols ........................................................................................................................................ 7-8
Symboles / Símbolos
Features ............................................................................................................................................. 9
Caractéristiques / Características
Assembly ......................................................................................................................................... 10
Assemblage / Armado
Operation ................................................................................................................................... 10-18
Utilisation / Funcionamiento
Maintenance .............................................................................................................................. 19-24
Entretien / Mantenimiento
Troubleshooting ............................................................................................................................... 25
Dépannage / Corrección de problemas
Warranty ..........................................................................................................................................26
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 SAFETY RULES
WARNING:
Do not attempt to operate this unit until you
have read thoroughly and understand completely all instructions, safety information, etc.
contained in this manual. Failure to comply can
result in accidents involving fire, electric shock,
or serious personal injury.
READ ALL INSTRUCTIONS
BASIC SAFETY PRECAUTIONS
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 two-handed use.
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.
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.
Always carry the chain saw by the front handle
with the unit stopped and the guide bar and saw
chain positioned to the rear. When transporting
your chain saw, use the appropriate guide bar
scabbard.
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. Do
not leave the unit running unattended.
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.
Inspect the battery charger cord periodically,
and if damaged, have it replaced or repaired by
an authorized service dealer.
Keep handles dry, clean, and free of oil and
grease.
Do not operate a chain saw that is damaged,
improperly adjusted, or not completely and
securely assembled. Chain should stop turning
when the switch trigger is released. If the chain
turns after the switch trigger has been released,
have the unit serviced by your nearest Ryobi
service dealer.
Check for damaged parts. Any part or guard that
has been damaged should be carefully checked
to determine that it will operate properly and
perform its intended function. 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 other part that is damaged should be properly
repaired or replaced by an authorized service
dealer 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 your nearest Ryobi
service dealer.
Do not use in the rain, snow or wet conditions.
Always maintain a proper stance. Do not over-
reach.
Do not adapt your powerhead to a bow guide
or use it to power any attachments or devices
not listed for the saw.
Do not cut vines and/or small underbrush.
SAFETY APPAREL
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 nonslip 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 eye protection which is marked to comply
with ANSI Z87.1 as well as hearing and head
protection when operating this equipment.
3 - English
GENERAL SAFETY RULES
KICKBACK
See Figures 1 - 3.
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:
1. Hold the saw firmly with both hands when
the motor 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.
2. 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.
3. Always cut with the unit running at full speed.
Fully squeeze the switch trigger and maintain
a steady cutting speed.
4. Use replacement parts such as low kickback
chain and 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.
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.
Follow the sharpening and maintenance instruc-
tions 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 3.
ROTATIONAL
KICKBACK
Fig. 1
KICKBACK
DANGER ZONE
Fig. 2
PULL
PUSH
Fig. 3
4 - English
GENERAL SAFETY RULES
IN THE CUTTING/WORK AREA
Do not operate a chain saw in a tree, on a ladder,
rooftop or scaffold; this is extremely dangerous.
Keep ALL children, bystanders, visitors, and
animals out of the work area while 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 work
piece involved. For example, felling a tree requires
a larger work area than making bucking cuts.
Never start cutting until you have a clear work
area, secure footing, and a planned retreat path
from the falling tree. Cluttered area invite injuries.
Do not expose the chain saw to rain.
Do not use the chain saw in damp or wet locations.
Do not use the chain saw near flammable liq-
uids, gases, or in any type of explosive atmosphere.
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 spring back so that you will not be
struck when the tension in the wood fibers is
released.
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.
Do not use the chain saw for purposes not
intended.
Store idle 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, remove battery and place the scabbard on
the bar and chain or store the chain saw in a
carry case.
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.
UNDERSTANDING YOUR CHAIN SAW
SAFETY DEVICES
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 SawsSafety 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.
5 - English
SPECIFIC SAFETY RULES
BATTERY SAFETY
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.
A battery pack must be recharged only with the
specified charger for the battery pack. A charger
that may be suitable for one type of battery pack
may create a risk of fire when used with another
battery pack. Use battery pack only with charger
listed.
For use with 18V nickel-cadmium and 18 V
lithium-ion battery packs, see tool/appliance/
battery pack/charger correlation supplement
987000-432.
To reduce the risk of explosion and possible
injury, Do not place battery units or their batteries
near fire or heat.
Do not open or mutilate the battery pack.
Released electrolyte is corrosive and may cause
damage to the eyes or skin. It may be toxic if
swallowed.
Do not crush, drop or damage battery pack. Do
not use a battery pack or charger that has been
dropped or received a sharp blow. A damaged
battery is subject to explosion. Properly dispose
of a dropped or damaged battery immediately.
Batteries can explode in the presence of a
source of ignition, such as a pilot light. To reduce
the risk of serious personal injury, never use any
cordless product in the presence of open flame.
An exploded battery pack can propel debris and
chemicals. If exposed, flush with water immediately.
Do not charge unit in a damp or wet location.
Following this rule will reduce the risk of electric
shock.
For best results, your battery unit should be
charged in a location where the temperature
is more than 50°F but less than 100°F. Do not
store outside or in vehicles.
Under extreme usage or temperature condi-
tions, battery pack leakage may occur. If liquid
comes in contact with your skin, wash immediately with soap and water. If liquid gets into
your eyes, flush them with clean water for at
least 10 minutes, then seek immediate medical
attention.
Do not dispose of batteries in a fire. The cell
may explode. Batteries should be recycled, consult your local waste authority for information
regarding available recycling and/or disposal
options.
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 pack terminals
together may cause sparks, burns, or a fire.
Save these instructions. Refer to them fre-
quently and use them to instruct others who
may use this tool. If you loan someone this tool,
loan them these instructions also.
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:
WARNING:
CAUTION:
CAUTION:
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 a situation that may
result in property damage.
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.
Eye, Hearing, and Head
Protection
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.
Always wear eye protection with side shields marked to
comply with ANSI Z87.1, along with hearing and head
protection
Hold and operate the saw properly with both hands.
7 - 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
Recycle Symbols
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.
This product uses lithium-ion or nickel-cadmium
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.
8 - English
FEATURES
PRODUCT SPECIFICATIONS
Motor .................................................. 18 Volt DC
Bar Length .................................................. 10 in.
Replacement Bar
Part Number ........... 671256002 or 671834007
Replacement Chain
Part Number ............... 6958301 or 690583002
NOTE: This saw was designed for occasional light
duty use and has some limitations as to what it
can cut.
SCABBARD
BAR
CHAIN OIL
TANK CAP
KNOW YOUR CHAINSAW
See Figure 4.
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.
REAR
HANDLE
BATTERY PACK
HAND GUARD
HEX KEY
CHAIN
FRONT HANDLE
HEX KEY
STORAGE AREA
BATTERY PACK
LOCK-OUT
BUTTON
SWITCH TRIGGER
Fig. 4
9 - English
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 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.
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.
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.
WARNING:
To prevent accidental starting that could cause
serious personal injury, always remove the battery pack from the product when assembling
parts.
PACKING LIST
Chain Saw with Scabbard
Hex Key
Bar and Chain Lubricant
Operator’s Manual
OPERATION
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
hearing and head protection. Failure to do so
could result in objects being thrown into your
eyes resulting in possible 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.
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.
10 - English
OPERATION
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 One+ 18 V lithiumion battery packs and Ryobi One+ 18 V nickelcadmium battery packs.
For complete charging instructions, refer to the
Operator’s Manual for your Ryobi One+ battery
pack and charger models.
TO INSTALL / REMOVE BATTERY PACK
See Figure 5.
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.
Make sure the latches on each side of the bat-
tery pack snap in place and that battery pack is
secured in chain saw before beginning operation.
To remove:
Locate latches on side of battery pack and depress
both sides to release the battery pack from the
chain saw.
CAUTION:
CAUTION:
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 6.
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.
Depress the oil tank cap several times to pump
the oil to the chain before starting the saw.
Depress the oil tank cap every 20-30 seconds
while cutting to keep the chain lubricated.
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.
BATTERY
PORT
LATCHES
BATTERY
PACK
Fig. 5
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.
11 - English
Fig. 6
OPERATION
STARTING AND STOPPING THE CHAIN
SAW
See Figure 7.
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 5 in. in diameter.
This cordless chain saw is designed for limbing
and pruning type cutting, as well as cutting trees
up to 5 in. in diameter only.
SWITCH
TRIGGER
LOCK-OUT
LOCK-OUT
BUTTON
SWITCH
TRIGGER
BUTTON
Fig. 7
PREPARATION FOR CUTTING
PROPER GRIP ON HANDLES
See Figures 8 - 10.
Refer to IMPORTANT SAFETY INSTRUCTIONS
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.
12 - English
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. 8
CHAIN LINE
Fig. 9
Fig. 10
13 - English
OPERATION
PROPER CUTTING STANCE
See Figure 11.
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.
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
Cut only wood or materials made from wood,
no sheet metal, no plastics, no masonry, no
non-wood 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
CHAIN LINE
STRAIGHT ARM
POSITION
Fig. 11
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
prevent 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 build-
ings. Leave this operation for professionals.
Cut only when visibility and light are adequate
for you to see clearly.
TREE FELLING
See Figures 12 - 15.
Unusual Hazardous Tree Felling Conditions
Do not fell trees during periods of high wind or
heavy precipitation. Wait to do your cutting until
the hazard has ended.
WARNING:
Do not cut down trees having an extreme lean or
trees that have rotten limbs, loose bark, or hollow trunks. Have these trees pushed or dragged
down with heavy equipment, then cut them up.
DANGER:
Electrocution hazard. Do not cut trees or
branches near power lines or electrical wires.
Contact with power lines or live electrical wires
will result in serious personal injury or possible
death.
14 - English
OPERATION
WARNING:
Do not cut trees or branches near buildings,
which may result in serious injuries or property
damage.
WARNING:
Check the tree for damaged or dead branches
that could fall and hit you during felling.
WARNING:
Periodically glance at the top of the tree during
the backcut to assure the tree is going to fall in
the desired direction.
WARNING:
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.
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 13.
PLANNED LINE OF FALL
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 12.
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.
90°
PLANNED PATH OF SAFE RETREAT 135° FROM PLANNED
LINE OF FALL
SAFE
RETREAT
PLANNED
LINE OF FALL
135°
135°
45°
45°
ZONE
90°
RETREAT
SAFE
RETREAT
ZONE
SAFE
ZONE
Fig. 12
HINGE
2 in. OR 1/10 DIA
NOTCH -
APPROX. 1/3
DIAMETER OF
TRUNK
BACK CUT
2 in.
Fig. 13
15 - English
OPERATION
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 13 - 14.
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 13 - 14.
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 15.
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.
BACK CUT
HINGE
WEDGE
NOTCH
Fig. 14
Fig. 15
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 16 - 19.
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.
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. 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
KICKBACK
Fig. 16
Fig. 17
16 - English
OPERATION
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 18 - 19.
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.
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.
LOG SUPPORTED AT ONE END:
LOAD
FINISHING CUT
1ST CUT
1/3 DIA
LOG SUPPORTED AT BOTH ENDS:
LOAD
1ST CUT 1/3 DIA
FINISHING CUT
OVERBUCKING
Fig. 18
TYPES OF CUTTING USED
See Figure 19.
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.
17 - English
UNDERBUCKING
Fig. 19
OPERATION
3
LIMBING
See Figure 20.
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.
PRUNING
See Figure 21.
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.
SPRINGPOLES
See Figure 22.
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.
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. 20
Fig. 21
WARNING:
If the limbs to be pruned are above chest height,
hire a professional to perform the pruning.
18 - English
SPRINGPOLE
Fig. 22
MAINTENANCE
WARNING:
When servicing, use only identical replacement
parts. Use of any other parts may create a
hazard or cause product damage.
WARNING:
To avoid serious personal injury, always remove the
battery pack from the product when cleaning
or performing any maintenance.
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.
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.
19 - English
MAINTENANCE
REPLACING BAR AND CHAIN
See Figures 23 - 27.
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.
RECOMMENDED BAR AND CHAIN
COMBINATIONS
Bar Part Number - 10 in.
671256002 or 671834007
Chain Part Number
6958301 or 690583002
SPROCKET
CHAIN TENSION
PIN HOLE
CHAIN
CHAIN
COVER
ADJUSTING
PIN
BAR
WASHER
CHAIN
COVER
SCREW
Fig. 23
Remove the battery pack before you do any
work on the chain saw.
Remove the hex key from the storage area and
use it to remove the chain cover screw, washer
and chain cover from the chain saw.
Remove the bar and chain from 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 the
opposite direction, turn the loop over.
Place the chain drive links into the bar groove.
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 of the chain saw. Fit the bar
flush against the mounting surface so that
the bar stud is in the long slot of the bar.
NOTE: When placing the bar on the bar stud,
assure that the adjusting pin is in the chain tension pin hole.
CHAIN DRIVE
LINKS
BAR
GROOVE
Fig. 24
CHAIN
TENSIONING
SCREW
Fig. 25
20 - English
MAINTENANCE
Replace the chain cover, washer and chain
cover screw. Tighten the chain cover screw
finger tight only. The bar must be free to move
for tension adjustment.
Remove all the 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.
Lift the tip of the guide bar up to check for
sag. 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.
Hold the tip of the guide bar up and tighten the
bar mounting screw securely.
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.
NOTE: If chain is too tight, it will not rotate.
Loosen the chain cover screw slightly and turn
tension adjuster 1/4 turn counterclockwise. Lift
the tip of the guide bar up and retighten chain
cover screw securely. Assure that the chain will
rotate without binding.
Place the hex key back into the storage area.
CAUTION:
Chain tensioned while warm, may be too tight
upon cooling. Check the “cold tension” before
next use.
LIFT THE TIP OF
THE GUIDE BAR
UP TO CHECK FOR
SAG
Fig. 26
CHAIN TENSION
See Figures 28 - 29.
Stop the engine before setting the chain tension.
Make sure the guide bar screw is loosened to
finger tight, turn the chain tensioner clockwise
to tension the chain. Refer to Replacing Bar
and Chain earlier in this manual for additional
information.
A cold chain is correctly tensioned when there
is no slack on the underside of the guide bar,
the chain is snug, but it can be turned by hand
without binding.
Chain must be re-tensioned whenever the flats
on the drive links hang out of the bar groove.
During normal saw operation, the temperature
of the chain will increase. The drive links of
a correctly tensioned warm chain will hang
approximately .050 in. out of the bar groove.
NOTE: New chain tends to stretch, check chain
tension frequently and tension as required.
FLATS
APPROX. .050 in.
HEX KEY
Fig. 27
Fig. 28
Fig. 29
21 - English
MAINTENANCE
CHAIN MAINTENANCE
See Figures 30 - 31.
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.
TOP PLATE
RIVET HOLE
CHECK FOR WEAR
OR DAMAGE
HEEL
CUTTING
CORNER
SIDE PLATE
DEPTH GAUGE
TOE
GULLET
Fig. 30
Fig. 31
HOW TO SHARPEN THE CUTTERS
See Figures 32 - 33.
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.
22 - English
LEFT HAND
CUTTERS
RIGHT HAND
CUTTERS
Fig. 32
Fig. 33
MAINTENANCE
WARNING:
Improper chain sharpening increases the potential of kickback.
WARNING:
Use a flat file and a depth gauge jointer to lower
all gauges uniformly. Depth gauge jointers are
available in .020 in. to .035 in. 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.
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 34.
CORRECT 30° - File holders are marked with
guide marks to align file properly to produce
correct top plate angle.
LESS THAN 30° - For Cross Cutting.
MORE THAN 30° - Feathered Edge Dulls Quickly.
SIDE PLATE ANGLE
See Figure 35.
CORRECT - 80° Produced automatically if cor-
rect diameter file is used in file holder.
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.
CORRECT TOP PLATE
FILING ANGLE
30°
INCORRECT TOP PLATE FILING
ANGLE
LESS
THAN 30°
MORE
THAN 30°
Fig. 34
CORRECT SIDE
PLATE FILING
ANGLE
80°
INCORRECT SIDE PLATE
FILING ANGLE
HOOK
BACKWARD
SLOPE
HOOK - “Grabs” and dulls quickly. Increases
potential of KICKBACK.
Results from using a file with diameter too small,
or file held too low.
BACKWARD SLOPE - Needs too much feed
pressure, causes excessive wear to bar and
chain.
Results from using a file with diameter too large,
or file held too high.
DEPTH GAUGE CLEARANCE
See Figure 36 - 38.
The depth gauge should be maintained at a
clearance of .025 in. Use a depth gauge tool
for checking the depth gauge clearances.
Every time the chain is filed, check the depth
gauge clearance.
23 - English
Fig. 35
RAKER CLEARANCE
.025 in.
Fig. 36
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