Ryobi R18MMS User manual

ORIGINAL INSTRUCTIONS
Multi Material Saw
R18MMS

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 multi material saw.
INTENDED USE
The multi material saw 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 product is designed for rip- and cross-cutting of wood.
The product is to be used with the base of the product in
contact with the workpiece. It should only be used in a dry,
well-lit and well ventilated area.
When tted with the appropriate saw blades, the product
can be used to cut thin-walled non-ferrous metals or
plastics.
When tted with the appropriate diamond cutting discs, the
product can be used to cut tiles without the use of water.
The product must not be used to cut ferrous metals.
The product is designed for handheld use. The product
is not to be mounted onto a workbench unless specic
instructions about how to do this are given by the
manufacturer of the saw.
Do not use the product for any other purpose. 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, 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) power tool or battery-operated
(cordless) power tool.
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 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

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with the 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.
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.
MULTI MATERIAL SAW SAFETY WARNINGS
CUTTING PROCEDURES
DANGER
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.
■Do not reach underneath the workpiece. The guard
cannot protect you from the blade below the workpiece.
■Adjust the cutting depth to the thickness of the
workpiece. Less than a full tooth of the blade teeth
should be visible below the workpiece.
■Never hold the workpiece in your hands or across
your leg while cutting. Secure the workpiece to a
stable platform. It is important to support the work
properly to minimise body exposure, blade binding, or
loss of control.
■Hold the power tool by insulated gripping surfaces,
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.
■When ripping, always use a rip fence or straight
edge guide. This improves the accuracy of cut and
reduces the chance of blade binding.
■Always 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.
■Never 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:
■kickback is a sudden reaction to a pinched, jammed or
misaligned saw blade, causing an uncontrolled saw to
lift up and out of the workpiece toward the operator;
■when the blade is pinched or jammed tightly by the kerf
closing down, the blade stalls and the motor reaction
drives the unit rapidly back toward the operator;
■if the blade becomes twisted or misaligned in the cut,
the teeth at the back edge of the blade can dig into the

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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.
■Maintain 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.
■When 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.
■When restarting a saw in the workpiece, centre the
saw blade in the kerf so that the saw teeth are not
engaged into the material. If a saw blade binds, it may
walk up or kickback from the workpiece as the saw is
restarted.
■Support 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.
■Do not use dull or damaged blades. Unsharpened
or improperly set blades produce narrow kerf causing
excessive friction, blade binding and kickback.
■Blade 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.
■Use extra caution when sawing into existing walls
or other blind areas. The protruding blade may cut
objects that can cause kickback.
GUARD FUNCTION
■Check the guard for proper closing before each
use. Do not operate the saw if guard does not move
freely and enclose the blade instantly. Never clamp
or tie the guard so that the blade is exposed. If saw
is accidentally dropped, guard may be bent. Check to
make sure that guard moves freely and does not touch
the blade or any other part, in all angles and depths
of cut.
■Check the operation and condition of the guard
return spring. If the guard and the spring are not
operating properly, they must be serviced before
use. Guard may operate sluggishly due to damaged
parts, gummy deposits, or a build-up of debris.
■Assure that the base plate of the saw will not shift
while performing the “plunge cut”. Blade shifting
sideways will cause binding and likely kick back.
■Always observe that the 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.
SAFETY INSTRUCTIONS FOR ABRASIVE
CUTTING-OFF OPERATIONS
CUT-OFF MACHINE SAFETY WARNINGS
■The guard provided with the tool must be securely
attached to the power tool and positioned for
maximum safety, so the least amount of wheel is
exposed towards the operator. Position yourself
and bystanders away from the plane of the rotating
wheel. The guard helps to protect operator from broken
wheel fragments and accidental contact with wheel.
■Use only diamond cut-off wheels for your power
tool. Just because an accessory can be attached to
your power tool, it does not assure safe operation.
■The rated speed of the accessory must be at least
equal to the maximum speed marked on the power
tool. Accessories running faster than their rated speed
can break and fly apart.
■Wheels must be used only for recommended
applications. For example, do not grind with the
side of cut-off wheel. Abrasive cut-off wheels are
intended for peripheral grinding. Side forces applied to
these wheels may cause them to shatter.
■Always use undamaged wheel flanges that are of
correct diameter for your selected wheel. Proper
wheel flanges support the wheel, thus reducing the
possibility of wheel breakage.
■The outside diameter and the thickness of your
accessory must be within the capacity rating of
your power tool. Incorrectly sized accessories cannot
be adequately guarded or controlled.
■The arbour size of wheels and flanges must
properly fit the spindle of the power tool. Wheels
and flanges with arbour holes that do not match the
mounting hardware of the power tool will run out of
balance, vibrate excessively and may cause loss of
control.
■Do not use damaged wheels. Before each use,
inspect the wheels for chips and cracks. If power
tool or wheel is dropped, inspect for damage or
install an undamaged wheel. After inspecting
and installing the wheel, position yourself and
bystanders away from the plane of the rotating
wheel and run the power tool at maximum no load
speed for one minute. Damaged wheels will normally
break apart during this test time.
■Wear personal protective equipment. Depending
on application, use face shield, safety goggles or
safety glasses. As appropriate, wear dust mask,
hearing protectors, gloves and shop apron capable
of stopping small abrasive or workpiece fragments.
The eye protection must be capable of stopping flying
debris generated by various operations. The dust mask
or respirator must be capable of filtrating particles
generated by the operation. Prolonged exposure to

4
high intensity noise may cause hearing loss.
■Keep bystanders a safe distance away from work
area. Anyone entering the work area must wear
personal protective equipment. Fragments of
workpiece or of a broken wheel may fly away and cause
injury beyond immediate area of operation.
■Hold the power tool by insulated gripping surfaces
only, when performing an operation where the
cutting accessory may contact hidden wiring.
Cutting accessory contacting a “live” wire may make
exposed metal parts of the power tool “live” and could
give the operator an electric shock.
■Position the cord clear of the spinning accessory.
If you lose control, the cord may be cut or snagged and
your hand or arm may be pulled into the spinning wheel.
■Never lay the power tool down until the accessory
has come to a complete stop. The spinning wheel
may grab the surface and pull the power tool out of your
control.
■Do not run the power tool while carrying it at your
side. Accidental contact with the spinning accessory
could snag your clothing, pulling the accessory into
your body.
■Regularly clean the power tool’s air vents. The
motor’s fan will draw the dust inside the housing and
excessive accumulation of powdered metal may cause
electrical hazards.
■Do not operate the power tool near flammable
materials. Sparks could ignite these materials.
■Do not use accessories that require liquid coolants.
Using water or other liquid coolants may result in
electrocution or shock.
KICKBACK AND RELATED WARNINGS
Kickback is a sudden reaction to a pinched or snagged
rotating wheel. Pinching or snagging causes rapid stalling
of the rotating wheel which in turn causes the uncontrolled
power tool to be forced in the direction opposite of the
wheel’s rotation at the point of the binding.
For example, if an abrasive wheel is snagged or pinched
by the workpiece, the edge of the wheel that is entering
into the pinch point can dig into the surface of the material
causing the wheel to climb out or kick out. The wheel may
either jump toward or away from the operator, depending on
direction of the wheel’s movement at the point of pinching.
Abrasive wheels may also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect
operating procedures or conditions and can be avoided by
taking proper precautions as given below.
■Maintain a firm grip on the power tool and position
your body and arm to allow you to resist kickback
forces. Always use auxiliary handle, if provided, for
maximum control over kickback or torque reaction
during start-up. The operator can control torque
reactions or kickback forces, if proper precautions are
taken.
■Never place your hand near the rotating accessory.
Accessory may kickback over your hand.
■Do not position your body in line with the rotating
wheel. Kickback will propel the tool in direction opposite
to the wheel’s movement at the point of snagging.
■Use special care when working corners, sharp
edges etc. Avoid bouncing and snagging the
accessory. Corners, sharp edges or bouncing have a
tendency to snag the rotating accessory and cause loss
of control or kickback.
■Do not attach a saw chain, woodcarving blade,
segmented diamond wheel with a peripheral gap
greater than 10 mm or toothed saw blade. Such
blades create frequent kickback and loss of control.
■Do not “jam” the wheel or apply excessive pressure.
Do not attempt to make an excessive depth of cut.
Overstressing the wheel increases the loading and
susceptibility to twisting or binding of the wheel in the
cut and the possibility of kickback or wheel breakage.
■When wheel is binding or when interrupting a cut
for any reason, switch off the power tool and hold
the power tool motionless until the wheel comes to
a complete stop. Never attempt to remove the wheel
from the cut while the wheel is in motion otherwise
kickback may occur. Investigate and take corrective
action to eliminate the cause of wheel binding.
■Do not restart the cutting operation in the workpiece.
Let the wheel reach full speed and carefully re-enter
the cut. The wheel may bind, walk up or kickback if the
power tool is restarted in the workpiece.
■Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kickback.
Large workpieces tend to sag under their own weight.
Supports must be placed under the workpiece near the
line of cut and near the edge of the workpiece on both
sides of the wheel.
■Use extra caution when making a “pocket cut” into
existing walls or other blind areas. The protruding
wheel may cut gas or water pipes, electrical wiring or
objects that can cause kickback.
■Use slow steady pressure when cutting tile. Do not
force the product. Use of excessive pressure may
damage the motor.
■Cutting tile for extended periods of time or cutting tile
longer than 30 cm could cause the saw to become
overheated. If this occurs, cool the saw by retracting
the wheel/blade into the guard, lifting the saw away
from the workpiece, and running the saw at full speed
for two minutes.
ADDITIONAL SAFETY WARNINGS
■Do not use any abrasive wheels.
■Use only blade diameter(s) in accordance with the
markings.
■Identify the correct saw blade to be used for the material
to be cut.
■Use only saw blades that are marked with a speed
equal or higher than the speed marked on the tool.
■Use only saw blades recommended by the
manufacturer, which conform to EN 847-1, if intended
for wood and analogous materials.
■Wear a dust mask.
■Use the dust collection device or connect a dust

5
extraction vacuum when operating the product. Do not
use a dust extraction vacuum when cutting metal.
■Avoid overheating the blade tips and melting the plastic.
■Check and ensure that the blade guard can move only
when the lock-off button is pressed, and that it will
return to its original position when released.
■The product will restart automatically if stalled. Switch
off the product immediately if it stalls. Do not switch on
the product again while it is still stalled, as doing so
could trigger a sudden recoil with a high reactive force.
Determine why the product stalled and rectify this,
paying heed to the safety instructions.
■Ambient temperature range for tool during operation is
between 0°C and 40°C.
■Ambient temperature range for tool storage is between
0°C and 40°C.
■The recommended ambient temperature range for the
charging system during charging is between 10°C and
38°C.
ADDITIONAL BATTERY SAFETY WARNINGS
WARNING
To reduce the risk of re, personal injury, and product
damage due to a short circuit, never immerse your
tool, battery pack or charger in uid or allow a uid to
ow inside them. Corrosive or conductive uids, such
as seawater, certain industrial chemicals, and bleach
or bleach-containing products, etc., can cause a short
circuit.
■Ambient temperature range for battery during use is
between 0°C and 40°C.
■Ambient temperature range for battery storage is
between 0°C and 20°C.
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:
■Injury caused by kickback
–Read and understand the information in this manual.
■Injury caused by dust
–Dust may enter the eyes or respiratory system.
Wear eye protection at all times. Wear appropriate
dust control mask with filters suitable for protecting
against particles from the material being cut. Do
not eat, drink, or smoke in the work area. Ensure
adequate ventilation.
■Injury caused by electric shock
–The blade may contact hidden wiring, causing
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.
■Injury caused by contact with the blade
–The blades are very 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 workpiece whenever
possible.
■Injury caused by vibration
–Limit exposure. See Risk Reduction.
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,
numbness and blanching of the ngers, usually apparent
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:
■Keep 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.
■After each period of operation, exercise to increase
blood circulation.
■Take 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.
KNOW YOUR PRODUCT
See page 9.
1. Dust pipe joint
2. Front handle, insulated gripping surface
3. Lock-off button
4. Switch trigger
5. Handle, insulated gripping surface
6. Hex key
7. Battery port
8. Edge guide knob
9. Depth adjustment lock knob

6
10. Spindle lock button
11. Edge guide fence
12. Tile blade
13. Multi purpose blade
14. Inner flange
15. Outer flange
16. Blade Screw
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 from the power
supply will prevent accidental starting that could cause
serious injury.
WARNING
When servicing, use only original manufacturer’s
replacement parts, accessories and attachments. Use of
any other parts may create a hazard or cause product
damage.
■Avoid 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, carbon dust, etc.
WARNING
Do not at any time let brake uids, gasoline, petroleum-
based products, penetrating oils, etc., come in contact
with plastic parts. Chemicals can damage, weaken or
destroy plastic which may result in serious personal
injury.
WARNING
For greater safety and reliability, all repairs should be
performed by an authorised service centre.
SYMBOLS ON THE PRODUCT
Safety alert
No-load speed
V Volts
Direct current
min-1 Revolutions or reciprocations per minute
Wood
Metals
Wear eye protection
Danger! Sharp blade
18
Blade teeth
Width of cut
1.8mm
Width of cut
Wear eye, hearing and respiratory
protection.
Ceramic
Not for wet grinding or cutting
CE conformity
EurAsian Conformity Mark
Ukrainian mark of conformity
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

7
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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