Ryobi R18CS7 User manual

ORIGINAL INSTRUCTIONS
Cordless
Circular Saw
R18CS7

Important!
It is essential that you read the instructions in this manual before assembling,
operating, and maintaining the product.
Subject to technical modification.

1
Safety, performance, and dependability have been given
top priority in the design of your cordless circular saw.
INTENDED USE
The product is intended to be used only by adults who
have read and understood the instructions and warnings
in this manual, and can be considered responsible for their
actions.
The saw is designed for rip- and cross-cutting of wood or
similar materials up to a maximum depth of 60 mm. It can
make straight or bevelled cuts between 0 and 56 degrees.
It is to be used with the base of the tool in contact with
the workpiece. It should only be used in a dry, well lit
and well ventilated area. The circular saw is designed for
handheld use. It is not to be mounted onto a workbench
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by the manufacturer of the saw. Do not use for cutting
metal or masonry. Do not use the product in any way other
than those stated for intended use. Use of the product
for operations different from intended could result in a
hazardous situation.
GENERAL POWER TOOL SAFETY WARNINGS
WARNING
Read all safety warnings and all instructions. Failure
to follow the warnings and instructions may result in
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Save all warnings and instructions for future reference.
The term “power tool’’ in the warnings refers to your
mains-operated (corded) power tool or battery-operated
(cordless) power tool.
1) WORK AREA SAFETY
ŶKeep work area clean and well lit. Cluttered or
dark areas invite accidents.
ŶDo 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.
ŶKeep children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
2) ELECTRICAL SAFETY
ŶPower tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
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reduce risk of electric shock.
ŶAvoid 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.
ŶDo not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
ŶDo 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.
ŶWhen 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.
ŶIf 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.
3) PERSONAL SAFETY
ŶStay 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.
ŶUse personal protective equipment. Always
wear eye protection. Protective equipment such
as dust mask, non-skid safety shoes, hard hat or
hearing protection used for appropriate conditions
will reduce personal injuries.
ŶPrevent 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
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have the switch on invites accidents.
ŶRemove 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.
ŶDo not overreach. Keep proper footing and
balance at all times. This enables better control of
the power tool in unexpected situations.
ŶDress 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.
ŶIf 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.
4) POWER TOOL USE AND CARE
ŶDo 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.
ŶDo 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.

2
ŶDisconnect the plug from the power source and/
or the battery pack from the power tool before
making any adjustments, changing accessories
or storing power tools. Such preventive safety
measures reduce the risk of starting the power tool
accidentally.
ŶStore 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.
ŶMaintain 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.
ŶKeep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
ŶUse 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.
5) BATTERY TOOL USE AND CARE
ŶRecharge only with the charger specified by the
manufacturer. A charger that is suitable for one
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used with another battery pack.
ŶUse power tools only with specifically
designated battery packs. Use of any other
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ŶWhen 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
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ŶUnder 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.
6) SERVICE
ŶHave 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.
CIRCULAR SAW SAFETY WARNINGS
CUTTING PROCEDURES
ŶDANGER! Keep hands away from cutting area
and the blade. Keep your second hand on
auxiliary handle, or motor housing. If both
hands are holding the saw, they cannot be cut by the
blade.
ŶDo not reach underneath the workpiece. The guard
cannot protect you from the blade below the workpiece.
ŶAdjust the cutting depth to the thickness of the
workpiece. Less than a full tooth of the blade teeth
should be visible below the workpiece.
ŶNever hold piece being cut in your hands or across
your leg. Secure the workpiece to a stable platform.
It is important to support the work properly to minimize
body exposure, blade binding, or loss of control.
ŶHold power tool by insulated gripping surfaces only
when performing an operation where the cutting
tool may contact hidden wiring. Contact with a “live”
wire will also make exposed metal parts of the power
tool “live” and could give the operator an electric shock.
ŶWhen ripping, always use a rip fence or straight
edge guide. This improves the accuracy of cut and
reduces the chance of blade binding.
ŶAlways use blades with correct size and shape
(diamond versus round) of arbour holes. Blades that
do not match the mounting hardware of the saw will run
eccentrically, causing loss of control.
ŶNever use damaged or incorrect blade washers
or bolt. The blade washers and bolt were specially
designed for your saw, for optimum performance and
safety of operation.
KICKBACK CAUSES AND RELATED WARNINGS:
ŶKickback is a sudden reaction to a pinched, bound or
misaligned saw blade, causing an uncontrolled saw to
lift up and out of the workpiece toward the operator.
ŶWhen the blade is pinched or bound tightly by the kerf
closing down, the blade stalls and the motor reaction
drives the unit rapidly back toward the operator.
ŶIf the blade becomes twisted or misaligned in the cut,
the teeth at the back edge of the blade can dig into the
top surface of the wood causing the blade to climb out
of the kerf and jump back toward the operator.
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operating procedures or conditions and can be avoided by
taking proper precautions as given below.
ŶMaintain a firm grip with both hands on the saw
and position your arms to resist kickback forces.
Position your body to either side of the blade, but
not in line with the blade. Kickback could cause the
saw to jump backwards, but kickback forces can be
controlled by the operator, if proper precautions are
taken.
ŶWhen blade is binding, or when interrupting a cut
for any reason, release the trigger and hold the saw
motionless in the material until the blade comes
to a complete stop. Never attempt to remove the
saw from the work or pull the saw backward while

3
the blade is in motion or kickback may occur.
Investigate and take corrective actions to eliminate the
cause of blade binding.
ŶWhen restarting a saw in the workpiece, centre the
saw blade in the kerf and check that saw teeth are
not engaged into the material. If saw blade is binding,
it may walk up or kickback from the workpiece as the
saw is restarted.
ŶSupport large panels to minimise the risk of blade
pinching and kickback. Large panels tend to sag
under their own weight. Supports must be placed under
the panel on both sides, near the line of cut and near
the edge of the panel.
ŶDo not use dull or damaged blades. Unsharpened
or improperly set blades produce narrow kerf causing
excessive friction, blade binding and kickback.
ŶBlade depth and bevel adjusting locking levers
must be tight and secure before making cut. If blade
adjustment shifts while cutting, it may cause binding
and kickback.
ŶUse extra caution when sawing into existing walls
or other blind areas. The protruding blade may cut
objects that can cause kickback.
LOWER GUARD FUNCTION
ŶCheck lower guard for proper closing before each
use. Do not operate the saw if lower guard does not
move freely and close instantly. Never clamp or
tie the lower guard into the open position. If saw is
accidentally dropped, lower guard may be bent. Raise
the lower guard with the retracting handle and make
sure it moves freely and does not touch the blade or any
other part, in all angles and depths of cut.
ŶCheck the operation of the lower guard spring. If
the guard and the spring are not operating properly,
they must be serviced before use. Lower guard may
operate sluggishly due to damaged parts, gummy
deposits, or a build-up of debris.
ŶLower guard may be retracted manually only for
special cuts such as “plunge cuts” and “compound
cuts”. Raise lower guard by retracting handle and as
soon as blade enters the material, the lower guard
must be released. For all other sawing, the lower guard
should operate automatically.
ŶAlways observe that the lower guard is covering the
blade before placing saw down on bench or floor.
An unprotected, coasting blade will cause the saw to
walk backwards, cutting whatever is in its path. Be
aware of the time it takes for the blade to stop after
switch is released.
ADDITIONAL SAFETY WARNINGS
ŶThe dust produced when using the product may be
harmful to your health, inflammable, or explosive.
Do not inhale the dust. Use a dust extraction system,
and wear a suitable dust protection mask. Remove
deposited dust thoroughly, e.g., with a brush and
vacuum cleaner.
ŶDo not use any abrasive wheels.
ŶUse only blades specified in this manual, complying
with EN 847-1.
ŶAvoid overheating the blade tips. Do not use dull or
damaged blades. Do not force the tool.
ŶDo not use blades of larger or smaller diameter than
recommended.
ŶWear ear protection.
ŶClamp workpiece with a clamping device.
Unclamped workpieces can cause severe injury and
damage.
ŶThoroughly check the material to be cut, particularly
when using recycled wood, for foreign objects such
as nails, screws, and staples. If nails, screws, staples
or similar items contact the blade whilst cutting, the saw
will be damaged and severe injury to the operator or
others may occur.
ŶDo not touch the saw blade immediately after
sawing. The saw blade gets hot during sawing.
WARNING
The product is not intended for use by persons (including
children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction
concerning use of the product by a person responsible
for their safety.
Children should be supervised to ensure that they do not
play with 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.
RESIDUAL RISKS
Even when the product is used as prescribed, it is still
impossible to completely eliminate certain residual risk
factors. The following hazards may arise and the operator
should pay special attention to avoid the following:
ŶInjury caused by kickback
–Read and understand the information in this manual.
ŶInjury caused by vibration
–Limit exposure. See Risk Reduction.
ŶInjury caused by dust
–Wear eye protection at all times. Wear appropriate
dust mask with suitable filters that can protect
against particles from the material being worked on.
Do not eat, drink, or smoke in the work area. Ensure
adequate ventilation.
ŶElectric shock
–The blade may contact hidden wiring causing

4
parts of the product to become live. Always hold
the product by the designated handles and take
care when blind-cutting into walls and floors where
cables may be hidden.
NOTE: When working on walls, ceilings, or floors, take
care to avoid electric cables and gas or water pipes.
ŶInjury from contact with the cutting blade
–The blades are sharp and will become hot during
use. Wear gloves when changing blades. Keep
hands away from the cutting area at all times. Never
hold workpiece being cut in your hands or across
your leg. Clamp the work piece whenever possible.
RISK REDUCTION
It has been reported that vibrations from handheld tools
may contribute to a condition called Raynaud’s Syndrome
in certain individuals. Symptoms may include tingling,
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upon exposure to cold. Hereditary factors, exposure to
cold and dampness, diet, smoking, and work practices
are all thought to contribute to the development of these
symptoms. There are measures that can be taken by the
operator to possibly reduce the effects of vibration:
ŶKeep your body warm in cold weather. When operating
the unit, wear gloves to keep the hands and wrists
warm. It is reported that cold weather is a major factor
contributing to Raynaud’s Syndrome.
ŶAfter each period of operation, exercise to increase
blood circulation.
ŶTake frequent work breaks. Limit the amount of
exposure per day.
If you experience any of the symptoms of this condition,
immediately discontinue use and see your doctor about
these symptoms.
WARNING
Injuries may be caused, or aggravated, by prolonged
use of a tool. When using any tool for prolonged periods,
ensure you take regular breaks.
MAINTENANCE
WARNING
The product should never be connected to a power
supply when assembling parts, making adjustments,
cleaning, performing maintenance, or when the product
is not in use. Disconnecting the product will prevent
accidental starting that could cause serious injury.
ŶWhen servicing, use only identical replacement parts.
Use of any other parts may create a hazard or cause
product damage.
ŶAvoid using solvents when cleaning plastic parts. Most
plastics are susceptible to various types of commercial
solvents and may be damaged by their use. Use clean
cloths to remove dirt and carbon dust.
ŶDo not, at any time, let brake fluids, gasoline, petroleum-
based products, penetrating oils, etc., come in contact
with plastic parts. They contain chemicals that can
damage, weaken, or destroy plastic.
ŶAlways wear safety goggles or safety glasses with side
shields during power tool operation or when blowing
dust. If operation is dusty, also wear a dust mask.
ŶFor greater safety and reliability, all repairs should be
performed by an authorised service centre.
LUBRICATION
All of the bearings in the product are lubricated with a
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the product under normal operating conditions. Therefore,
no further lubrication is required.
ENVIRONMENTAL PROTECTION
Recycle raw materials instead of disposing
of as waste. The machine, accessories, and
packaging should be sorted for environment-
friendly recycling.
SYMBOLS ON THE PRODUCT
Safety alert
No-load speed
V Volts
Direct current
min-1 Revolutions or reciprocations per minute
Diameter
Wood
Do not cut metals
Wear eye protection
Danger! Sharp blade
Do not expose to rain
Width of cut

5
Blade teeth
Regulatory Compliance Mark (RCM).
Product meets applicable regulatory
requirements.
Please read the instructions carefully
before starting the machine.
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.
SYMBOLS IN THIS MANUAL
Note
Waiting time
Parts or accessories sold separately
The following signal words and meanings are intended to
explain the levels of risk associated with this product:
DANGER
Indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation, which, if not
avoided, may result in minor or moderate injury.
CAUTION
(Without Safety Alert Symbol) Indicates a situation that
may result in property damage.

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1. Edge guide knob
2. Bevel adjustment knob
3. Front handle
4. Lock-off button
5. Switch trigger
6. Spindle lock button
7. Dust Pipe joint
8. Dust port
9. Hex key
10. Depth adjustment lock lever
11. Blade Screw
12. Outer flange
13. Inner flange
14. Blade
15. Edge guide fence
16. Battery port
KNOW YOUR PRODUCT

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PRODUCT SPECIFICATIONS
Cordless circular saw
Model R18CS7
Voltage 18 V
Blade diameter 184 mm
Blade arbor 15.88 mm
Cutting capacity at 0º 60 mm
Cutting capacity at 45º 44 mm
No-load speed 3700 min-1
Blade - width of cut 1.6 mm
Blade teeth 24 T
Blade thickness 1.0 mm
BATTERY AND CHARGER
Model Compatible battery
pack (not included)
Compatible charger
(not included)
Lithium-Ion
RB18L13
RB18L15
RB18L20
RB18L25
RB18L40
RB18L50
BCS618G
BCL14181H
BCL14183H
BCL1418IV*
RC18150U
RC18627U
RC18120
*for vehicles with 12V DC outlets