Ryobi RCS2040G User manual

Important! It is essential you read the instructions in this manual before starting
any operation with this machine.
2000W ELECTRIC CHAINSAW
OPERATOR'S MANUAL
RCS2040G

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RCS2040G

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OPERATING INSTRUCTIONS
Dear Customer:
Thank you for buying a Ryobi power tool. Each Ryobi
power tool is carefully tested and subjected to strict quality
controls by Ryobi quality assurance. Nevertheless, the
service life of a power tool depends to a great extent
on you. Please observe the information contained in
these instructions and enclosed documentation. The more
carefully you treat your Ryobi power tool, the longer it will
provide dependable service.
GENERAL POWER TOOL SAFETY WARNINGS
WARNING
Reading the operating instructions will reduce the
risk of injury.
WARNING
Read all safety warnings and 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.
WORK AREA SAFETY
a) Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
b) 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 flammable liquids or fumes.
c) Keep children and bystanders away while
operating a power tool. Distractions can cause you
to lose control.
ELECTRICAL SAFETY
a) 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.
b) 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.
c) Do not expose power tools to rain or wet
conditions. Water entering a power tool will increase
the risk of electric shock.
d) 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.
e) 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.
f) If operating a power tool in a damp location is
unavoidable, use a residual current device (RCD)
protected supply with a tripping current of 30mA
or less. Use of an RCD reduces the risk of electric
shock.
NOTE: The term “residual current device (RCD)” may
be replaced by the term “ground fault circuit interrupter
(GFCI)” or “earth leakage circuit breaker (ELCB)”.
PERSONAL SAFETY
a) 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 any medication.
A moment of inattention while operating power tools
may result in serious personal injury.
b) Use personal protective equipment. Always wear
eye protection. Protective equipment such as dust
mask, nonskid safety shoes, hard hat, or hearing
protection used for appropriate conditions will reduce
personal injuries. Ryobi advise the use of chainsaw
clothing complying to class 1 (use for chainsaws).
c) Prevent unintentional starting. Ensure the switch
is in the off-position before connecting to power
source, 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.
d) 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.
e) Do not overreach. Keep proper footing and
balance at all times. This enables better control of
the power tool in unexpected situations.
f) Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves away
from moving parts. Loose clothes, jewellery or long
hair can be caught in moving parts.
POWER TOOL USE AND CARE
a) 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

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designed.
b) Do not use the power tool if the switch does not
turn it on and off. Any power tool that cannot be
controlled with the switch is dangerous and must be
repaired.
c) Disconnect the plug from the power source before
making any adjustments, changing accessories,
or storing power tools. Such preventive safety
measures reduce the risk of starting the power tool
accidentally.
d) 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 dangerous in the hands
of untrained users.
e) Maintain power tools. 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.
f) Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges are
less likely to bind and are easier to control.
g) 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.
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.
OTHER GENERAL WARNINGS
n Know your power tool. Read owners manual
carefully. Learn its applications and limitations as well
as the specific potential hazards related to this tool.
n Use the right tool. Do not force a small tool or
attachment to do the job of a heavy duty tool. Do not
use a tool for purposes not intended.
n Protect your lungs. Wear a dust mask if operation is
dusty.
n Do not operate in poor lighting. Use the unit only in
daylight or good artificial light.
n Disconnect the plug immediately from the power
source if the mains or extension lead is damaged
or severed.
n Stay alert and exercise control. Watch what you are
doing and use common sense. Do not operate the
tool when you are tired. Do not rush operation of the
tool.
n Check for damaged parts. Before use of the tool,
guards and all other parts 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 any other part that is
damaged should be properly repaired or replaced by
an authorised service centre.
n Do not use tool if switch does not turn it on and off.
Have defective switches replaced by an authorised
service centre.
n Do not operate this tool while under the influence
of drugs, alcohol or any medication.
n The appliance is not intended for use by young or
infirm persons.
n Young children should be supervised to ensure
that they do not play with the tool.
n The use of an earth-leakage circuit breaker
of residual current device, the tripping current
of 30mA or less, in conjunction with this tool is
recommended.
n Maintain the chainsaw with care. Keep the power
cord clear of the chain at all times. Never carry the
saw by the cord or pull on the cord to disconnect it
from the socket.
n Chain tension. Make sure that the chain tension is
correct, as specified in these instructions. Incorrect
tension may cause the chain to disengage from the
guide bar, which is extremely dangerous.
n Extension cord. When an extension cord is used
make sure:
(a) That pins on the plug of the extension cord are
the same in number, size and shape as those of
the plug on the saw.
(b) That extension cord is properly wired and in good
electrical condition.
(c) That the wire size is large enough for the AC
ampere rating of the chain saw.
SPECIAL SAFETY INSTRUCTIONS
n Keep all parts of the body away from the chain
when operating. Before you start, make sure the
chain is not contacting anything. A moment of
inattention while operating chainsaws may cause
serious injury.
n Always hold the chainsaw with your right hand

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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.
n Wear safety glasses and hearing protection.
Further protective equipment for head, hands,
legs and feet is recommended. Adequate protective
clothing will reduce personal injury by flying debris or
accidental contact with the chain.
n Do not operate a chainsaw while up in a tree.
Operation of a chainsaw while up in a tree may result
in personal injury.
n Always keep proper footing and operate the
chainsaw only when standing on fixed, secure and
level surfaces. Slippery or unstable surfaces such as
ladders may cause a loss of balance or control.
n Hold the power tool by insulated gripping
surfaces only, because the chain may contact
hidden wiring or its own cord. Chains contacting
a "live" wire may make exposed metal parts of the
power tool "live" and could give the operator an
electric shock.
n When cutting a limb that is under tension be alert
for spring back. When the tension in the wood fibers
are released the spring loaded limb may strike the
operator and/or the chainsaw.
n Use extreme caution when cutting brush and
saplings. Slender materials may catch on the chain
and be whipped toward you or pull you off balance.
n Carry the chainsaw by the front handle, away
from your body. When transporting or storing the
chainsaw always fit the guide bar cover. Proper
handing of the chainsaw will reduce the likelihood of
accidental contact with the moving chain.
n Follow instructions for lubricating, chain
tensioning and changing accessories. An
improperly tensioned or lubricated chain increases
the c h a n c e o f kickback an d c a n p o s s i bly
break.
n Keep handles dry, clean, and free from oil and
grease. Greasy, oily handles are slippery and can
cause loss of control.
n Cut wood only. Do not use chainsaw for purposes
not intended. Do not attempt to cut plastic,
masonry or steel. Use of the chainsaw for operations
other than intended may result in a hazardous
situation.
CAUSES AND OPERATOR PREVENTION OF KICKBACK
a) Kickback may occur when the nose or tip of the
guide bar touches an object, or when the wood
closes in and pinches the chain in the cut.
b) Tip contact in some cases may cause a sudden
reverse reaction, kicking the guide bar up and
back towards the operator.
c) Pinching the chain along the top of the bar
may push the bar rapidly back towards the
operator.
d) Either of these reactions may cause you to
lose control of the saw which could result in
serious 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.
e) 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:
n Maintain a firm grip with both hands on the
saw with thumbs and fingers encircling the
handles. Position your body and arms to allow
you to resist kickback force. Kickback forces
can be controlled by the operator, if proper
precautions are taken. Do not let go of the
chainsaw.
n 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.
n Only use replacement bars and chains
specified by the manufacturer. Incorrect
replacement bars and chains may cause
chain breakage and/or kickback.
n Follow the manufacturers sharpening and
maintenance instructions for the chain.
Decreasing the depth gauge height can lead
to increases in kickback.
SPECIAL USE
n The chainsaw is designed for cutting through tree
trunks, branches, squared timber and similar objects
and for felling and delimbing trees.
n The user bears sole responsibility for damage caused
by improper use.
n Generally accepted accident prevention regulations
and the enclosed safety information must be
observed.
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SYMBOLS
Some of the following symbols may be used on this tool. Please study them and learn their meaning for safe operation
of this product.
SYMBOL NAME EXPLANATION
V Volts Voltage
Hz Hertz Frequency (cycles per second)
W Watt Power
Alternating Current Type of current
Safety Alert Precautions that involve your safety .
Class II tool Tool in which protection against electric shock rely on double
insulation or reinforced insulation.
Wet conditions alert Do not expose to rain or use in damp locations.
Read the operator’s
manual
To reduce the risk of injury, user must read and understand the
"operator’s manual before using this product.”
Electric shock
precaution
Remove plug from the mains immediately if cable is damaged or
cut.
Eye protection Always wear safety goggles or safety glasses when operating this
product.
Ear protection Always wear safety ear protectors when operating this product.
Sound power level Guaranteed sound power level is 107dB.
Safety Alert :Kickback
danger DANGER! Beware of Kickback.
Two hands operation Always use two hands to operate the machine, don’t use it with
one hand.
107

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SYMBOLS
The following signal words and meanings are intended to explain the levels of risk associated with this product.
SYMBOL SIGNAL MEANING
Indicates an imminently hazardous situation, which, if not avoided, will result
in death or serious injury.
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.
DANGER
WARNING
CAUTION
CAUTION
SERVICE
Servicing requires extreme care and knowledge
and should be performed only by a qualified service
technician. For service we suggest you return the product
to your nearest AUTHORISED SERVICE CENTRE for
repair. When servicing, use only identical replacement
parts.
WARNING:
To avoid serious personal injury, do not attempt to
use this product until you read thoroughly and
understand completely the operator's manual.
Save this operator's manual and review frequently
for safe operation and instructing others who may
use this product.
WARNING:
Observe all normal safety precautions related to
avoiding electrical shock.
SAVE THESE INSTRUCTIONS

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DESCRIPTION
Fig. 1
1. Chain Brake
2. Front Handle
3. Oil Tank Cap
4. Safety Lock-off Button
5. Rear Handle
6. Live Tool Indicator
7. Switch Trigger
8. Oil Tank Sight Gauge
9. Chain Tension Adjust Knob
10. Sprocket Cover
11. Sprocket Cover Adjust Knob
12. Bar
13. Chain
Fig. 2
14. Lock-Off Button
15. Bumper Spike
16. Chain Cover
Fig. 3
17. Sprocket
18. Chain Tension Bolt
19. Bar Guide
20. Oil Outlet
Fig. 5
21. Bar Groove
22. Chain Drive Links
23. Cutter
Fig. 9
24. Felling direction
25. Danger Zone
26. Escape route
Fig.10
27. Direction of fall
28. Notch
29. Felling back cut
30. Hinge
Fig.11
31. Limb cut
32. Keep work off ground leave support limbs until log
is cut
Fig.12
33. Log supported along the entire length
34. Cut from top (overbuck) avoid cutting earth
Fig.13
35. Log supported one end
36. 1st cut from bottom (underbuck) (1/3 diameter) to
avoid splintering
37. 2nd cut from top (overbuck) (2/3 diameter) to meet
1st cut (to avoid pinching)
Fig.14
38. Log supported both ends
36. 1st cut underbuck (1/3 diameter) to avoid splintering
37. 2nd cut overbuck (2/3 diameter) to meet 1st cut (to
avoid pinching)
Fig.15
39. Bucking a log
40. Stand on uphill side when cutting because log may
roll

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TECHNICAL DATA
Unit RCS2040G
Rated voltage V~ / Hz 220~240/50
Power rating W 2000
Rated no-load speed M/S 13
Cutting length mm 400
Chain break S < 0.15
Chain stop S < 0.15
Chain oil tank capacity ml 200
Weight (without cable) kg 5.2
Emission sound pressure level LpA dB(A) 95
Uncertainty KpA dB(A) 3
Sound power level LWA dB(A) 104
Uncertainty KWA dB(A) 3
Guaranteed sound power level LWA(G) dB(A) 107
Vibration total value ah (no load work mode) m/s25.7
Uncertainly K m/s21.5
Chain & Bar information
Manufacturer Chain Chain bar
Carlton N1C-BL-56E SK B 16-10W-N156-MHC
Oregon 91PJ056X 160SDEA041
Note: Carlton Chain must be fitted with Carlton bar; Oregon Chain must be fitted with Oregon bar.

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SPECIAL PRODUCT FEATURES
n Special safety wrap-spring chain brake. In case of a
kickback or if the trigger is released, the chainsaw
comes to a standstill within 1/10 of a second.
n Sawing chain with safety driving links to reduce the
risk of kickback.
n Large chain brake near the front handle. In cases of
kickback the chain brake is pushed forward by the
back of the operator’s hand which trips the wrap-
spring chain brake.
n Lock off switch to protect against unintentional start
of the chainsaw.
n Live tool indicator to indicate a good connection with
power.
COMMISSIONING
Assembling the bar and chain
Remove the mains plug out of the socket.
Wear protective gloves.
n Unscrew the sprocket cover adjust knob and remove
the sprocket cover. (Fig. 1)
n The chain should face in the direction of chain
rotation. If they face backwards, turn the loop over.
(Fig. 4)
n Place the chain drive links into the bar groove. (Fig.
5)
n Position the chain so there is a loop at the back of
the bar.
n Hold the chain in position on the bar and place
the loop around the sprocket and make sure it is
correctly mounted. (Fig. 6)
Note: The chain is correctly tensioned if the cutter
can be lifted 3 to 4mm from the resting position.
n Turn the chain tensioning bolt clockwise until the
chain is correctly tensioned. While the bolt is being
tightened, the bar must then be pushed upwards,
check chain tension again, do not tension the chain
too tightly. (Fig. 7)
n Replace the sprocket cover on top and tighten gently
with the sprocket cover adjust knob.
Running in
Before cutting with a new chain, allow it to run freely
for 2~3 minutes.
WARNING:
After the run-in time, check the chain tension
and retighten the chain if necessary.
Chain lubricating oil
The chainsaws are delivered without oil in the tank.
Prior to initial operation of the machine, the oil tank
must be filled with chain and bar oil.
Ryobi chainsaw adhesive oil is biologically degradable
and permits chainsaw operation at temperatures as low
as -15°C.
The oil tank cap is removed to fill the oil. When filling the
oil, ensure that no dirt gets into the oil tank. The oil level
can be monitored at the oil sight gauge. One filling of the
oil tank (capacity 0.2L) is sufficient for 25~40 minutes of
chainsaw operation.
Checking chain lubrication
To prevent excessive wear, the chain and bar must
be evenly lubricated during operation. Lubrication is
automatic. Never work without chain lubrication. If the
chain runs dry, the entire cutting apparatus will quickly
become severely damaged. It is therefore important to
check both chain and bar lubrication and the oil gauge
before every use. Never use the saw when the oil level is
below the "Minimum" mark.
n Minimum - When only approx. 5 mm of oil is visible at
the lower rim of the oil gauge, you must top up with
oil.
n Maximum - Top up with oil until the window is full.
WARNING:
Never work without chain and bar lubrication.
To check the automatic chain lubrication system is
working, hold the chain saw with the cutter (and chain
running) at a safe distance of about approx. 20cm over
a light colored base, e.g. a spread-out newspaper). If
increasingly large oil marks appear on the light colored
base, the chain lubrication is working correctly.
Chain Brake
The integrated chain brake brings the chain to a standstill
within 1/10 of a second if the chain brake is moved either:
-- Manually to its front position, or during work with the
back of the operator’s hand (due to kickback) , or if
-- The chainsaw is switched off by releasing the trigger.
If the quick brake of the chainsaw is tripped through
actuation of the Chain Brake near the front handle, do
not allow the chainsaw motor to run in this position for
unnecessarily long periods. Push the chain brake back to
its initial position.
WARNING:
Before operating the chainsaw, always check
that the chain brake is in perfect working order
(by actuating the hand protection and releasing
the trigger). Have the machine repaired if
braking time is lengthened.