Ryobi R18CS User manual

ORIGINAL INSTRUCTIONS
Cordless Circular Saw
R18CS

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

Safety
1
Safety, performance, and dependability have been given
top priority in the design of your cordless circular saw.
INTENDED USE
The product is intended for cutting all types of wood.
Do not use the product in any way other than those stated
for intended use.
GENERAL POWER TOOL SAFETY WARNINGS
WARNING
Read all safety warnings and all instructions. Failure
to follow the warnings and instructions may result in
electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term “power tool’’ in the warnings refers to your
mains-operated (corded) power tool or battery-operated
(cordless) power tool.
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
tools. Unmodified plugs and matching outlets will
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
finger on the switch or energising power tools that
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.
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.

Safety
2
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
type of battery pack may create a risk of fire when
used with another battery pack.
ŶUse power tools only with specifically
designated battery packs. Use of any other
battery packs may create a risk of injury and fire.
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
may cause burns or a fire.
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.
Kickback is the result of saw misuse and/or incorrect
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
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

Safety
3
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.
MAINTENANCE
ŶWhen servicing, use only original manufacturer’s
replacement parts. Use of any other parts may create a
hazard or cause product damage.
ŶClean the tool and guarding system with clean cloths, or
blow it clean with compressed air.
ŶAvoid 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.
ŶDo not attempt to modify this tool or create accessories
not recommended for use with this tool.
ŶAll repairs should be performed by an authorised Ryobi
service centre.
ENVIRONMENTAL PROTECTION
Recycle raw materials instead of disposing
of as waste. The machine, accessories
and packaging should be sorted for
environmental-friendly recycling.
SYMBOLS
Safety alert
No-load speed
Blade diameter
Regulatory Compliance Mark (RCM).
Product meets applicable regulatory
requirements.
Please read the instructions carefully
before starting the machine.
Metal
Wood
Width of blade
Wear eye protection
Danger! Sharp blade
Do not expose to rain
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.

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

Getting started
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Getting started
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Getting started
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Operation
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40
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10 - 52 mm10 - 52 mm
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Operation
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Operation
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Maintenance
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20150416v1

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Maintenance
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BATTERY AND CHARGER
Model Compatible battery
pack (not included)
Compatible charger
(not included)
Lithium-Ion RB18L13
RB18L15
RB18L25
RB18L26
RB18L40
RB18L50
BCS618G
BCL14181H
BCL14183H
BCL1418IV*
*for vehicles with 12V DC outlets
PRODUCT SPECIFICATIONS
Cordless Circular Saw
Voltage 18 V
Blade diameter 165 mm (6 1/2”)
Blade arbor 15.88 mm (5/8”)
Cutting capacity at 0º 52 mm
Cutting capacity at 45º 36 mm
No-load speed 4,700 min-1
Blade - width of cut 1.6 mm
Blade teeth 24 T
Blade thickness 1.0 mm

961075356-01
Techtronic Industries (Australia) Pty. Ltd.
31 Gilby Road,
Mount Waverley VIC 3149,
Australia
Techtronic Industries New Zealand Ltd.
18-26 Amelia Earhart Avenue
Mangere, Auckland 2022, New Zealand