Ryobi RCO2300 User manual
ORIGINAL INSTRUCTIONS
Cut-off Machine
RCO2300
Important!
It is essential that you read the instructions in this manual before assembling,
operating, and maintaining the product.
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Safety, performance, and dependability have been given
top priority in the design of your cut-off machine.
INTENDED USE
The cut-off machine is intended to be used for cutting metal
materials. Do not use for non-metal materials.
The product is intended to be used only by adult operators
who have read the instruction manual and understand the
risks and hazards.
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machine may move during cutting operations, which
increases the possibility of serious personal injury.
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ambient lighting and adequate ventilation.
The product is intended for consumer use and should only
be used as described above and is not intended for any
other purpose.
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
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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.
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.
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.
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 a 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
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ŶDress 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.
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.
ŶDo 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
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
Safety
1
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 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.
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 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.
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.
ŶKeep handles and grasping surfaces dry, clean
and free from oil and grease. Slippery handles and
grasping surfaces do not allow for safe handling and
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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.
CUT-OFF MACHINE SAFETY WARNINGS
ŶPosition yourself and bystander away from the
plane of the rotating wheel. The guard helps to
protect the operator from broken wheel fragments and
accidental contact with wheel.
ŶUse only bonded reinforced cut-off wheels for
your power tool. Just because an accessory can be
attached to your power tool, it does not assure safe
operation.
ŶThe 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.
ŶWheels must be used only for recommended
applications. For example: do not grind with the
side of a cut-off wheel. Abrasive cut-off wheels are
intended for peripheral grinding, side forces applied to
these wheels may cause them to shatter.
ŶAlways 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.
ŶThe 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.
ŶThe 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
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control.
ŶDo not use damaged wheels. Before each use,
inspect the wheels for chips and cracks. If the
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.
ŶWear 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
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high intensity noise may cause hearing loss.
ŶKeep 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.
ŶPosition 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.
ŶRegularly clean the power tool’s air vents. The
motor’s fan can draw the dust inside the housing and
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electrical hazards.
ŶDo not operate the power tool near flammable
materials. Do not operate the power tool while
placed on a combustible surface such as wood.
Sparks could ignite these materials.
ŶDo not use accessories that require liquid coolants.
Using water or other liquid coolants may result in
electrocution or shock.
KICKBACK AND RELATED WARNINGS
ŶKickback is a sudden reaction to a pinched or snagged
rotating wheel. Pinching or snagging causes rapid
Safety
2
stalling of the rotating wheel which in turn causes the
uncontrolled cutting unit to be forced upwards toward
the operator.
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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. Abrasive wheels may also break under these
conditions.
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incorrect operating procedures or conditions and can be
avoided by taking proper precautions as given below.
ŶMaintain a firm grip on the power tool and position
your body and arm to allow you to resist kickback
forces. The operator can control upward kickback
forces, if proper precautions are taken.
ŶDo not position your body in line with the rotating
wheel. If kickback occurs, it will propel the cutting unit
upwards toward the operator.
ŶDo 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.
ŶDo 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.
ŶWhen the wheel is binding or when interrupting a
cut for any reason, switch off the power tool and
hold the cutting unit 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.
ŶDo 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.
ŶSupport 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.
ADDITIONAL SAFETY WARNINGS
ŶEnsure that the product is always used on a stable and
level surface.
ŶAlways use eye and ear protection when cutting.
ŶUse personal protective equipment such as dust mask,
gloves and apron.
ŶIf there is the risk of falling object, wear helmet or head
protection.
ŶEnsure that the abrasive cutting-off wheel is correctly
fitted and tightened before use and run the machine at
no-load for 30 seconds in a safe position, and to stop
immediately and replace the cutting-off wheel if there is
considerable vibration.
ŶBefore making a cut, be sure all adjustments are secure.
ŶBefore performing any adjustment, make sure the tool
is unplugged from the power supply. Failure to unplug
cut-off machine could result in accidental starting
causing possible serious personal injury.
ŶAssemble all parts to your cut-off machine before
connecting it to power supply.
ŶThe product should never be connected to power supply
when you are assembling parts, making adjustments,
installing or removing wheels, or when not in use.
ŶVisually inspect the abrasive wheel before every use.
Check the wheel for fissures and cracks. Do not use
damaged abrasive wheel.
ŶDo not use saw blades.
ŶNever use a wheel that is too thick to allow outer flange
to engage with the flats on the spindle. Larger wheels
will come in contact with the wheel guards, while thicker
wheels will prevent the bolt from securing the wheel on
the spindle. Either of these situations could result in a
serious accident and can cause serious personal injury.
ŶDo not remove the machine’s wheel guards. Never
operate the machine with any guard or cover removed.
Make sure all guards are operating properly before
each use.
ŶDo not start your abrasive cut-off machine without
checking for interference between the wheel and the
machine base support. Damage may result to the wheel
if it strikes the machine base support during operation
of the machine.
ŶDo not attempt to cut wood or masonry with this cut-
off machine. Never cut magnesium or magnesium alloy
with this machine.
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cracks.
ŶAlways ease the abrasive wheel against the work piece
when starting to cut. A harsh impact can break the wheel.
ŶNever cut more than one work piece at a time. Do not
stack more than one work piece on the machine base
at a time.
ŶTo minimise risk of tipping the machine, always support
long work pieces.
ŶCutting steel will cause sparks. Do not operate in the
presence of combustible or flammable materials.
ŶNever leave tool running unattended. Do not leave tool
until it comes to a complete stop. The wheel continues
to rotate after the product is switched off.
ŶAlways release the power switch and allow the wheel
to stop rotating before raising it out of the work piece.
ŶKeep hands away from cutting area. Keep hands away
from wheel. Do not reach underneath work or around
or under the wheel while the wheel is rotating. Do not
Safety
3
attempt to remove cut material while wheel is moving.
ŶNever stand or have any part of your body in line with
the path of the wheel.
ŶNever stand on the tool. Serious injury could occur if the
tool is tipped or if the wheel is unintentionally contacted.
ŶNever perform any operation “freehand”. Always
secure the work piece to be cut in the vice. Refer to
specifications table for safe minimum size of work
piece. Always ensure you grip at least 80 mm in the
vice jaws to ensure security while grinding.
ŶNever hand hold a work piece, it will become very hot
while being cut.
ŶA power spike causes voltage fluctuations and may
affect other electrical products in the same power
line. Connect the product to a power supply with an
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fluctuations. Contact your electric power supplier for
further clarification.
ŶIt is recommended that the tool always be supplied via
a residual current device having a rated residual current
of 30mA or less.
RYOBI recommends that you use Metal cutting Disc
COSB355A1 as a replacement whenever you need a
new disc.
SAFETY WARNINGS FOR FITTING AN ABRASIVE
WHEEL
ŶTo reduce the risk of injury, user must read and
comply with instructions, warnings and operator’s
manual before starting to use this abrasive wheel.
Failure to heed these warnings can result in wheel
breakage and serious personal injury. Save these
instructions.
ŶThe use of any wheel other than the one recommended
in the machine instruction manual may present a risk of
personal injury. Use only abrasive wheels which have
marked speed equal or greater to that marked on the
machine.
ŶNever use abrasive wheel that is too thick to allow outer
flange to engage with the flats on the spindle. Larger
wheels will come in contact with the wheel guards,
while thicker wheels will prevent the bolt from securing
the wheel on the spindle. Either of these situations
could result in a serious accident and can cause serious
personal injury.
ŶThis abrasive wheel is for ferrous metal cutting only. Do
not attempt to cut wood or masonry with it. Never cut
magnesium or magnesium alloy with it.
ŶThis abrasive wheel is only suitable for dry cutting, and
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ŶDo not use damaged abrasive wheels, do not use
wheels that are chipped, cracked or otherwise defective.
ŶEnsure that the abrasive cutting-off wheel is correctly
fitted and tightened before use.
ŶThe direction of rotation of the abrasive wheel is
indicated on the tool, make sure the direction mark on
wheel is consistent with the direction identified on the
tool while installing and changing abrasive wheel.
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can cause cracks.
ŶThe saw should never be connected to power supply
when you are installing or removing abrasive wheels.
ŶStore your spare abrasive wheels carefully; they are
easily damaged.
Information available on the abrasive wheel label
The information on the wheel label is IMPORTANT. Read
and check it carefully to ensure you are selecting the
correct type of wheel.
1. Manufacturer, supplier, importer or trade mark
2. Nominal dimensions of abrasive wheel, in particular the
diameter of the bore
3. Abrasive type, grain size, grade or hardness, type of
bond and use of reinforcement e.g.
Ɣ41A24RBF80
Ɣ41--- abrasive type, flat cutting-off wheel
ƔA --- abrasive material: brown corundum
Ɣ24 --- grain size
ƔR --- grade or hardness
ƔBF --- type of bond
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4. 0D[LPXPRSHUDWLRQVSHHGLQPHWUHVSHUVHFRQG
5. 0D[LPXPSHUPLVVLEOHVSHHGRIURWDWLRQLQPLQ
6. For declaration of conformity, the abrasive products
shall be marked with EN 12413
7. Restriction of use and safety warning symbols.
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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 in use and the
operator should pay special attention to avoid the following:
ŶStability. Ensure the tool is stable, if necessary secure it.
ŶInhalation of dust. Wear a mask if necessary.
ŶSparks and hot metal particles, these can cause fire,
skin burns. Wear protective equipment during using.
ŶEye injury from metal particles. Wear eye protection
when working.
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hearing protection.
KNOW YOUR PRODUCT
See page 8.
1. Handle, insulated gripping surface
2. Trigger switch
3. Top handle
4. Spindle lock
5. Cutting depth adjustment screw
Safety
4
6. Cutting depth lock nut
7. Mitre guide
8. Wrench
9. Upper guard
10. Lower guard
11. Cutting wheel
12. Work clamp
13. Work clamp lock lever
14. Work clamp adjustment crank
15. Rubber foot
16. Saw head lock chain
17. Mounting hole
18. Carbon brush cap
19. Carbon brush
20. &KLSGHÀHFWRU
21. Mitre guide lock lever
OPERATION TIPS
MITRE GUIDE LOCK LEVER
When the mitre guide is placed closest to the saw head
pivot, the mitre guide lock lever may interfere with the
head pivot when turning. Repeat the locking process by
lifting and rewinding the lever until the mitre guide is tightly
locked.
MAINTENANCE
ŶDo not modify the product in any way or use accessories
not approved by the manufacturer. Your safety and that
of others may be compromised.
ŶDo not use the product if any switches, guards or
other functions does not work as intended. Return to
an authorised service centre for professional repair or
adjustment.
ŶDo not make any adjustments while the motor is in
motion.
ŶAlways make sure the machine’s plug has been
removed from the mains power source before changing
brushes, lubricating or when doing any works or
maintenance on the machine.
ŶAfter each use, check your machine for damage or
broken parts and keep it in top working condition by
repairing or replacing parts immediately.
ŶEnsure that ventilation openings are kept clear,
especially when working in dusty conditions. If it
becomes necessary to clear dust, disconnect the
product from the mains supply. Clean the openings
using a soft brush.
ŶClean out accumulated dust.
ŶTo assure safety and reliability, all repairs with the
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performed by an authorised service centre.
ŶIf the power cord is damaged, it must be replaced by
an authorised service centre in order to avoid a hazard.
WARNING
For greater safety and reliability, all repairs should be
performed by an authorised 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
Regulatory Compliance Mark (RCM). Product
meets applicable regulatory requirements.
Please read the instructions carefully before
starting the product.
Class II tool, double insulation
Wear ear protection
Wear eye protection.
Not for wet grinding or cutting
Do not use chipped, cracked or defective
grinding wheel
Wear safety gloves
Wear dust mask.
Safety
5
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locations.
Cutting-off wheel rotation direction (shown on
wheel guard)
Waste electrical products should not be
disposed of with household waste. Please
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Local Authority or retailer for recycling advice.
SYMBOLS IN THIS MANUAL
Lock
Unlock
Waiting time for blade to reach full speed
Parts or accessories sold separately
Note
Warning
The following signal words and meanings are intended to
H[SODLQWKHOHYHOVRIULVNDVVRFLDWHGZLWKWKLVSURGXFW
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.
Safety
6
Unpacking
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x 1
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Unpacking
Know your product
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Know your product
Overview
9
p.18 p.10p.11
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M10
x 2
M10 M10
x 2 x 2
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Operation
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Operation
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Operation
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70 mm - 240 mm
35 mm - 205 mm
0 mm - 170 mm B
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m
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70
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35
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Operation
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Operation
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Operation
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5s
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11
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Operation
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5s
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Maintenance
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Maintenance
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Table of contents
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