Ryobi R18CHS20 User manual

FRONT PAGE
R18CHS20

2
Original Instructions
IMPORTANT!
It is essential that you read the instructions in this manual
before assembling, operating, and maintaining the
product.
Subject to technical modication.
Safety, performance, and dependability have been given top
priority in the design of your cordless chainsaw.
INTENDED USE
The cordless chainsaw is intended for outdoor use only. For
safety reasons, the product must be adequately controlled
by using a two-handed operation at all times.
The product is designed for cutting branches, trunks, logs,
and beams of a diameter determined by the cutting length of
the guide bar. It is designed to cut wood only.
The product is to be used in domestic applications only by
adults who have received adequate training on the hazards
and preventative measures to be taken while using the
product. It should not be used for professional tree services.
Do not use the product for any other purpose.
GENERAL PRODUCT SAFETY WARNINGS
WARNING! Read all safety warnings, instructions,
illustrations and specifications provided with this
power tool. Failure to follow all instructions listed below
may result in electric shock, re, 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) product or battery-operated (cordless)
product.
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 electric
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 residual current device (RCD)
protected supply. Use of an RCD 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 a 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 and clothing away from
moving parts. Loose clothes, jewellery 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.
■Do not let familiarity gained from frequent use of
tools allow you to become complacent and ignore
tool safety principles. A careless action can cause
severe injury within a fraction of a second.
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.
■Do not use the power tool if the switch does not turn
it on and off. Any power tool that cannot be controlled
with switch is dangerous and must be repaired.
■Disconnect the plug from the power source and/
or remove the battery pack, if detachable, 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.

3
Original Instructions
Power tools are dangerous in the hands of untrained
users.
■Maintain power tools and accessories. Check for
misalignment 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. Properly
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.
■Keep handles and grasping surfaces dry, clean
and free from oil and grease. Slippery handles and
grasping surfaces do not allow for safe handling and
control of the tool in unexpected situations.
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 designated
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.
■Do not use a battery pack or tool that is damaged or
modified. Damaged or modified batteries may exhibit
unpredictable behaviour resulting in fire, explosion or
risk of injury.
■Do not expose a battery pack or tool to fire or
excessive temperature. Exposure to fire or temperature
above 130°C may cause explosion.
■Follow all charging instructions and do not charge
the battery pack or tool outside the temperature
range specified in the instructions. Charging
improperly or at temperatures outside the specified
range may damage the battery and increase the risk of
fire.
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.
■Never service damaged battery packs. Service
of battery packs should only be performed by the
manufacturer or authorized service providers.
GENERAL CHAINSAW SAFETY WARNINGS
■Keep all parts of the body away from the saw chain
when the chainsaw is operating. Before you start the
chainsaw, make sure the saw chain is not contacting
anything. A moment of inattention while operating
chainsaws may cause entanglement of your clothing or
body with the saw chain.
■Always hold the chainsaw with your right hand
on the rear handle and your left hand on the front
handle. Holding the chainsaw with a reversed hand
configuration increases the risk of personal injury and
should never be done.
■Hold the chainsaw 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 chainsaw “live” and could
give the operator an electric shock.
■Wear eye protection. Further protective equipment
for hearing, head, hands, legs and feet is
recommended. Adequate protective equipment will
reduce personal injury by flying debris or accidental
contact with the saw chain.
■Do not operate a chainsaw in a tree, on a ladder,
from a rooftop, or any unstable support. Operation
of a chainsaw in this manner could result in serious
personal injury.
■Always keep proper footing and operate the
chainsaw only when standing on fixed, secure and
level surface. Slippery or unstable surfaces may cause
a loss of balance or control of the chainsaw.
■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 chainsaw 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 chainsaw by the front handle with the
chainsaw switched off and away from your body.
When transporting or storing the chainsaw, always
fit the guide bar cover. Proper handling of the chainsaw
will reduce the likelihood of accidental contact with the
moving saw chain.
■Follow instructions for lubricating, chain tensioning
and changing the bar and chain. Improperly tensioned
or lubricated chain may either break or increase the
chance for kickback.
■Cut wood only. Do not use chainsaw for purposes
not intended. For example: do not use chainsaw for
cutting metal, plastic, masonry or non-wood building
materials. Use of the chainsaw for operations different
than intended could result in a hazardous situation.
■This chainsaw is not intended for tree felling. Use of
the chainsaw for operations different that intended could
result in serious injury to the operator or bystanders.
■Follow all instructions when clearing jammed
material, storing or servicing the chainsaw. Make
sure the switch is off and the battery pack is removed.
Unexpected actuation of the chainsaw while clearing
jammed material or servicing may result in serious
personal injury.

4
Original Instructions
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 chainsaw user, you should take several steps to keep
your cutting jobs free from accident or injury.
Kickback is the result of chainsaw 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 chainsaw 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 chainsaw.
■Do not overreach and do not cut above shoulder
height. This helps prevent unintended tip contact and
enables better control of the chainsaw in unexpected
situations.
■Only use replacement guide bars and saw chains
specified by the manufacturer. Incorrect replacement
guide bars and saw 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.
ADDITIONAL SAFETY WARNINGS
■Attend a professionally organised course on the use and
maintenance of chainsaws, preventative actions, and
first aid. Keep these instructions safe for later use.
■Chainsaws are potentially dangerous tools. Accidents
involving the use of chainsaws often result in loss of limbs
or death. Falling branches, toppling trees, rolling logs
can all kill. Diseased or rotting timber poses additional
hazards. Assess your capability of completing the task
safely. If there is any doubt, leave it to a professional
tree surgeon.
■Do not cut vines or small undergrowth (less than 75 mm
in diameter).
■It is recommended to practise cutting logs on a saw-
horse or cradle when operating the product for the first
time.
■The size of the work area depends on the job being
performed and the size of the tree or workpiece involved.
For example, felling a tree requires a larger work area
than making other cuts, such as bucking cuts. The
operator needs to be aware and in control of everything
happening in the work area.
■Do not cut with your body in line with the guide bar and
chain. If you experience kickback, this position helps
prevent the chain from coming into contact with your
head or body.
■Do not use a back-and-forward sawing motion. Let the
chain do the work. Keep the chain sharp, and do not try
to push the chain through the cut.
■Do not put pressure on the saw at the end of the cut.
Be ready to take on the weight of the saw as it cuts free
from the wood. Failure to do so could result in possible
serious personal injury.
■Do not stop the saw in the middle of a cutting operation.
Keep the saw running until it is already removed from
the cut.
■To reduce the risk of injury associated with contacting
moving parts, always turn off the product, remove the
battery pack, and make sure that all moving parts have
come to a complete stop:
●before cleaning or clearing a blockage
●before leaving the product unattended
●before installing or removing attachments
●before checking, conducting maintenance, or
working on the product
■Injuries may be caused, or aggravated, by prolonged use
of the product. When using the product for prolonged
periods, ensure to take regular breaks.
■If the product is dropped, suffers heavy impact, or begins
to vibrate abnormally, immediately stop the product and
inspect for damage or identify the cause of the vibration.
Any damage should be properly repaired or replaced by
an authorised service centre.
■Operate the product only in temperatures between 0°C
and 40°C.
■Store the product in a location where the ambient
temperature is between -10°C and 50°C.
PERSONAL PROTECTIVE EQUIPMENT
Good quality personal protective equipment, as used by
professionals, helps reduce the risk of injury to the operator.
The following items should be used when operating the
product:
■Safety helmet
■Hearing protection
■Eye and face protection
■Gloves
■Leg protection (chaps)
■Chainsaw safety boots
■Chainsaw jackets for upper body protection
ADDITIONAL BATTERY SAFETY WARNINGS
■To reduce the risk of fire, personal injury, and product
damage due to short circuit, never immerse the tool,
battery pack, or charger in fluid or allow fluid to flow
inside them. Corrosive or conductive fluids, such as
seawater, certain industrial chemicals, and bleach or
bleach-containing products, etc., can cause a short
circuit.
■Charge the battery pack in a location where the ambient
temperature is between 10°C and 38°C.
■Store the battery pack in a location where the ambient
temperature is between 0°C and 20°C.

5
Original Instructions
INSTRUCTIONS CONCERNING THE PROPER
TECHNIQUES FOR BASIC LIMBING AND CROSS-
CUTTING
UNDERSTANDING THE FORCES WITHIN THE WOOD
When you understand the directional pressures and
stresses inside the wood, you can reduce the pinches or at
least expect them during your cutting. Tension in the wood
means the bres are being pulled apart, and if you cut in this
area, the kerf or cut tends to open as the saw goes through.
If a log is being supported on a saw-horse and the end is
hanging unsupported over the end, tension is created on
the upper surface due to the weight of the overhanging log
stretching the bres. Likewise, the underside of the log is
compressed and the bres are being pushed together. If a
cut is made in this area, the kerf tends to close up during the
cut. This cut would pinch the blade.
PUSH AND PULL
The reaction force is always opposite to the direction the
chain is moving. The operator must be ready to control the
tendency for the product to pull away and push backwards.
The product pulls away (forward motion) when cutting on
the bottom edge of the bar. The product pushes backwards
(towards the operator) when cutting along the top edge.
SAW JAMMED IN THE CUT
Turn o󰀨 the product, and remove the battery pack. Do not
try to force the chain and bar out of the cut as this is likely
to break the chain, which may swing back and strike the
operator. This situation normally occurs because the wood
is incorrectly supported, which forces the cut to close under
compression, thereby pinching the blade. If adjusting the
support does not release the bar and chain, use wooden
wedges or a lever to open the cut and release the saw.
Never try to start the chainsaw when the guide bar is already
in a cut or kerf.
SKATING/BOUNCING
When the chainsaw fails to dig in during a cut, the guide
bar can begin hopping or dangerously skidding along the
surface of the log or branch, possibly resulting in the loss
of control of the chainsaw. To prevent or reduce skating or
bouncing, always use the saw with both hands. Make sure
that the saw chain establishes a groove for cutting.
Never cut small, exible branches or brushes with your
chainsaw. Their size and exibility can easily cause the
saw to bounce towards you or bind up with enough force
to cause a kickback. The best tool for that kind of work is
a hand saw, pruning shears, an axe, or other hand tools.
REMOVING BUTTRESS ROOTS
A buttress root is a large root extending from the trunk of
the tree above the ground. Remove large buttress roots
before felling. Make the horizontal cut into the buttress rst,
followed by the vertical cut. Remove the resulting loose
section from the work area. Follow the correct tree felling
procedure after removing the large buttress roots.
BUCKING A LOG
Bucking is cutting a log into lengths. It is important to make
sure your footing is rm and your weight is evenly distributed
on both feet. When possible, the log should be raised and
supported by the use of limbs, logs or chocks. Follow the
simple directions for easy cutting. When the log is supported
along its entire length, it is cut from the top (overbuck).
When the log is supported on one end, cut 1/3 the diameter
from the underside (underbuck). Then make the nished cut
by overbucking to meet the rst cut.
1
2
1/3
2/3
When the log is supported on both ends, cut 1/3the
diameter from the top (overbuck). Then make the nished
cut by underbucking the lower 2/3 to meet the rst cut.
2
1
2/3
1/3
When bucking on a slope always stand on the uphill side of
the log. To maintain control when “cutting through”, release
the cutting pressure near the end of the cut without relaxing
your grip on the chainsaw handles. Do not let the chain
contact the ground. After completing the cut, wait for the saw
chain to stop before you move the chainsaw. Always stop
the motor before moving from tree to tree.
LIMBING A TREE
Limbing is removing the branches from a fallen tree. When
limbing, leave larger lower limbs to support the log o󰀨 the
ground. Remove the small limbs in one cut. Branches under
tension should be cut from the bottom up to avoid binding
the chainsaw.
SPRINGPOLES
A springpole is any log, branch, rooted stump, or sapling
that 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

6
Original Instructions
springpoles—they are dangerous. Do not attempt to cut
bent branches or stumps that are under tension unless you
are professionally trained and competent to do so.
WARNING! Springpoles are dangerous and could
strike the operator, causing the operator to lose control of
the chainsaw. This could result in a severe or fatal injury to
the operator. Cutting spring poles should be done by trained
users.
TRANSPORTATION AND STORAGE
■Turn off the product, remove the battery pack, and allow
the product to cool down before storing or transporting.
■Remove all foreign materials from the product. Store the
product in a cool, dry, and well-ventilated place that is
inaccessible to children. Keep the product away from
corrosive agents, such as garden chemicals and de-
icing salts. Do not store the product outdoors.
■Fit the guide bar cover before storing the product or
during transportation.
■For transportation, secure the product against movement
or falling to prevent injury to persons or damage to the
product.
TRANSPORTING LITHIUM BATTERIES
Transport the battery in accordance with local and national
provisions and regulations.
Follow all special requirements on packaging and labelling
when transporting batteries by a third party. Ensure that
no batteries can come in contact with other batteries
or conductive materials while in transport by protecting
exposed connectors with insulating, non-conductive caps or
tape. Do not transport batteries that are cracked or leaking.
Check with the forwarding company for further advice.
MAINTENANCE
■Use only original manufacturer’s replacement parts,
accessories, and attachments. Failure to do so can cause
possible injury, can contribute to poor performance, and
may void your warranty.
■Servicing requires extreme care and knowledge
and should be performed only by a qualified service
technician. Have the product serviced by an authorised
service centre only.
■You may make adjustments or repairs described in this
manual. For other repairs, have the product serviced by
an authorised service centre only.
■Consequences of improper maintenance, removal, or
modification of safety devices, may cause the product to
not function correctly, increasing the potential for serious
injury. Keep the product professionally maintained.
■Sharpening the chain safely is a difficult precision task
that should be performed only by experienced skilled
professionals. The manufacturer strongly recommends
that a worn or dull chain is replaced with a new one,
available at your authorised service centre. The part
number is available in the product specification table in
this manual.
■Follow the instructions for lubricating and chain tension
checking and adjustment.
■After each use, clean the plastic parts with a soft, dry
cloth.
■Check all nuts, bolts, and screws at frequent intervals
for security to ensure that the product is in safe working
condition. Any part that is damaged should be properly
repaired or replaced by an authorised service centre.
MAINTENANCE SCHEDULE
Daily check
Chain tension Before each use and
frequently
Chain sharpness Before each use (visual check)
For damaged parts Before each use
For loose fasteners Before each use
Inspect and clean
Bar Before each use
Complete saw After each use
SAFETY DEVICES
CHAIN CATCHER
The chain catcher prevents the saw chain from being thrown
back towards the operator if the saw chain comes loose or
breaks.
GUIDE BARS
Generally, guide bars with small radius tips have a
somewhat lower potential for kickback. Use a guide bar and
matching chain that is just long enough for the job. Longer
bars increase the risk of loss of control during sawing.
Regularly check the chain tension. When cutting smaller
branches (less than the full length of the guide bar) the chain
is more likely to be thrown o󰀨 if the tension is not correct.
LOW-KICKBACK SAW CHAIN
The low-kickback saw chain helps to reduce the possibility
of a kickback event.
The rakers (depth gauges) ahead of each cutter can
minimise the force of a kickback reaction by preventing the
cutters from digging in too deeply. Use only replacement
guide bar and chain combinations that are recommended
by the manufacturer.
As saw chains are sharpened, they lose some of the low-
kickback qualities, and extra caution is required. For safety,
replace saw chains when cutting performance decreases.
SPIKED BUMPER
The integral bumper spike may be used as a pivot when
making a cut. It helps to keep the body of the chainsaw
steady while cutting. When cutting, push the product forward

7
Original Instructions
until the spikes dig into the edge of the wood, then move the
rear handle up or down in the direction of the cutting line to
help ease the physical strain of cutting.
OVER-TEMPERATURE PROTECTION
The battery pack has over-temperature protection, which
is designed to protect the battery cells from damage in the
event of high temperatures. This feature may cause the
battery to stop powering the product until the battery cells
cool down. If the battery pack is warm to touch, allow it to
cool down before resuming operation. If the product still
does not work, connect the battery pack to the charger,
which can also indicate over-temperature protection. When
the battery cells cool down, the charger begins to charge
the battery.
NOTE: High ambient temperatures above 30° C and high-
power tools, such as chainsaws, can cause the battery cells
to heat up faster. Monitor the battery pack regularly, and if
it is warm to touch, change the battery or allow the battery
to cool down.
NOTE: The battery pack LED indicator stops working if the
battery protection feature has caused the battery pack to
stop powering the product.
SYMBOLS ON THE PRODUCT
Safety alert
Read and understand all instructions
before operating the product. Follow
all warnings and safety instructions.
Wear eye, ear, and head protection.
Wear non-slip safety footwear when
using the product.
Wear non-slip, heavy-duty gloves.
Beware of chain saw kickback and
avoid contact with bar tip.
Do not expose the product to rain or
damp conditions.
Hold and operate the saw properly
with both hands.
Do not operate the saw using only
one hand.
Remove the battery pack before
starting any work on the product.
Waste electrical products should not
be disposed of with household waste.
Please recycle where facilities exist.
Check with your local authority or
retailer for recycling advice.
Guaranteed sound power level
Regulatory Compliance Mark (RCM).
Product meets applicable regulatory
requirements.
Rotate to adjust the chain tension
+ = Tighten the chain
- = Loosen the chain
Moving direction of the chain.
(Marked under the sprocket cover)
SYMBOLS IN THIS MANUAL
Parts or accessories sold separately
Note
Warning
Wear eye and face protection.
Wear upper body protection.
Wear leg protection.
Stop the product.

8
Original Instructions

9
Know your product
R18CHS20
Guide bar
Saw chain
Front hand guard
Front handle
Rear handle
Operator’s
manual
Chain tensioning
screw
Switch trigger
Trigger release
Sprocket cover
Guide bar cover
Battery pack
Charger
Sprocket cover
screw
Wrench

10
Getting started
21
6
Wear Personal Protective Equipment
(PPE). Wear full eye protection, ear
protection, non-slip heavy-duty gloves,
substantial footwear, and protective
clothing at all times while operating the
product. Do not operate the product
when barefoot or wearing open sandals.
Remove the guide bar cover. Remove the wrench from the handle.
Insert the battery pack into the product.
Make sure that the latch of the battery
pack clicks in place and that the battery
pack is fully seated and securely
attached before beginning operation.
WARNING: Grip both handles with
the thumbs and fingers encircling the
handles. Ensure that the left hand is
holding the front handle so that the
thumb is underneath.
NOTE: For best performance, lubricant
may be added directly onto the bar and
chain before each use.

11
Getting started
2
1
2
1
2
7
34
1
2
5
Loosen the sprocket cover screw. Adjust the chain tension until the gap
between the drive teeth and bar is
between 2.5 and 3.5 mm. To increase
the chain tension, turn the chain
tensioning screw clockwise. To reduce
the chain tension, turn the chain
tensioning screw counterclockwise.
NOTE: Frequently check the chain
tension while turning the chain
tensioning screw.
Tighten the sprocket cover screw.
NOTE: The temperature of the chain
increases during normal operation,
causing the chain to stretch. Check the
chain tension frequently and adjust as
required. A chain that is tensioned while
warm may be too tight upon cooling.
Make sure that the chain tension is
correctly adjusted as specified in these
instructions.
WARNING: Always hold the product
with the right hand on the rear handle
and the left hand on the front handle.
Start the product. Pull the trigger
release. Press the switch trigger.
2.5-3.5 mm

12
p.15p.13 p.14
p.16

13
Operation
1
2
1
1
2
3
4
2
1
2
3
1
2
4
REPLACING THE BAR AND CHAIN
1. Remove the battery pack.
2. Loosen the sprocket cover screw.
Remove the screw, sprocket cover, and
bar and chain assembly.
3. Install the new chain on the bar.
Insert the chain drive links into the bar
groove. Position the chain so that there is
a loop at the back of the bar.
NOTE: The saw chain should face in the
direction of chain rotation. If the saw chain
faces backwards, turn the loop over.
Hold the chain in position on the bar, and
place the loop around the drive sprocket.
Lower the bar and place it flush against
the mounting surface.
4. Reinstall the sprocket cover, and screw.
5. Adjust the chain tension until the gap
between the drive teeth and bar is
between 2.5 and 3.5 mm.
To increase the chain tension, turn the
chain tensioning screw clockwise.
To reduce the chain tension, turn the
chain tensioning screw counterclockwise.
NOTE: Frequently check the chain
tension while turning the chain tensioning
screw.
52.5-3.5 mm

14
Maintenance
1
2
1
6. Tighten the sprocket cover screw.
ADJUSTING THE CHAIN TENSION
1. Remove the battery pack.
2. Loosen the sprocket cover screw.
3. Adjust the chain tension until the gap
between the drive teeth and bar is
between 2.5 and 3.5 mm.
To increase the chain tension, turn the
chain tensioning screw clockwise.
To reduce the chain tension, turn the
chain tensioning screw counterclockwise.
NOTE: Frequently check the chain tension
while turning the chain tensioning screw.
NOTE: The temperature of the chain
increases during normal operation,
causing the chain to stretch. Check the
chain tension frequently and adjust as
required. A chain that is tensioned while
warm may be too tight upon cooling.
Make sure that the chain tension is
correctly adjusted as specified in these
instructions.
1
2
6
1
2
2
32.5-3.5 mm

15
Maintenance
1
2
1
2
4. Tighten the sprocket cover screw.
CLEANING THE PRODUCT
1. Remove the battery pack.
2. Use a brush to remove loose dirt and saw
dust from around the front hand guard.
Use a soft, dry cloth to clean the plastic
parts.
WARNING: Do not use water to clean the
product.
1
2
4

16
Storage
2
3
20210819v1d1
1
2
1
STORING THE PRODUCT
1. Remove the battery pack.
2. Install the guide bar cover.
3. When transporting the product, secure
it against movement or falling to prevent
injury to persons or damage to the
product.
Store the product in a cool, dry, and
well-ventilated place that is inaccessible
to children. Keep the product away
from corrosive agents, such as garden
chemicals and de-icing salts. Do not store
the product outdoors.

PRODUCT SPECIFICATIONS
Cordless chainsaw
Model R18CHS20
Rated voltage 18 V d.c.
No-load speed 4.6 m/s
Guide bar length 203 mm
Usable cutting length 180 mm (7 in.)
Chain stop <2 s
Chain length 203 mm (8 in.)
Chain pitch 9.525 mm (3/8 in.)
Chain gauge 1.09 mm (0.043 in.)
Drive links quantity 33
Weight (without battery pack, guide
bar, chain, and oil)
1.9 kg
Vibration level (in accordance with IEC 62841-1 and
IEC 62841-4-1)
Front handle 3.0 m/s2
Rear handle 2.8 m/s2
Uncertainty of measurement 1.5 m/s2
Noise emission level (in accordance with IEC 62841-1 and
IEC 62841-4-1)
A-weighted sound pressure level at
the operator’s position
82.2 dB(A)
Uncertainty of measurement 3.0 dB
A-weighted sound power level 90.2 dB(A)
Uncertainty of measurement 2.8 dB
BATTERY AND CHARGER
Model R18CHS20
Compatible
battery
packs
RB18L13, RB18L13Z, RB18L15, RB18L15A,
RB18L15B, RB1815C, RB18L20A, RB1820C,
RB18L25A, RB1825C, RB18L26, RB18L30A,
RB18L40A, RB1840C, RB1840X, RB18L50A,
RB1850C, RB1850X, RB18L60A, RB1860X,
RB18L90A
Compatible
chargers
BCL14183H, RC18627, RC18627U, RC18150,
RC18150U, RC18120, RC18115, RC18118C,
BCL1418IV
REPLACEMENT PARTS
Manufacturer TRILINK POWERFIT
Chain CL14333PB PWFTCA801
Bar N1430833-1041RY -
The chain must be tted with the bar from the same
manufacturer according to above combinations.
MAINTENANCE
Chainsaw le 4.0 mm (5/32 in.)
WARNING! The declared vibration total values and the
declared noise emission values given in this instruction
manual have been measured in accordance with a
standardised test and may be used to compare one tool with
another. They may be used for a preliminary assessment
of exposure.
The declared vibration and noise emission values represent
the main applications of the tool. However, if the tool is used
for di󰀨erent applications, used with di󰀨erent accessories,
or poorly maintained, the vibration and noise emission
may di󰀨er. These conditions may signicantly increase the
exposure levels over the total working period.
An estimation of the level of exposure to vibration and noise
should take into account the times when the tool is turned o󰀨
or when it is running idle. These conditions may signicantly
reduce the exposure level over the total working period.
Identify additional safety measures to protect the operator
from the e󰀨ects of vibration and noise, such as maintaining
the tool and the accessories, keeping the hands warm (in
case of vibration), and organising work patterns.

BACK PAGE
Imported by:
Techtronic Industries Australia Pty Ltd
31 Gilby Road, Mount Waverley, VIC 3149
Melbourne, Australia
Techtronic Industries N.Z. Limited
Unit C, 70 Business Parade South,
Highbrook, Auckland 2013, New Zealand
RYOBI is a trade mark of Ryobi Limited, and is used under license.
TRILINK is a registered trade mark of Trilink Saw Chain, LLC.
POWERFIT is a trade mark of Techtronic Outdoor Products
Technology Limited in ANZ.
960994135-02