OPERATOR’S MANUAL
RANDOM ORBIT SANDER
DOUBLE INSULATED
RS290
Your sander has been engineered and manufactured to our high standard for dependability, ease of operation, and operator
safety. When properly cared for, it will give you years of rugged, trouble-free performance.
WARNING: To reduce the risk of injury, the user must read and understand the operator’s manual before using
this product.
Thank you for your purchase.
SAVE THIS MANUAL FOR FUTURE REFERENCE
GENERAL SAFETy RULES
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.
WARNING!
Read all instructions. Failure to follow all instructions
listed below may result in electric shock, fire and/or seri-
ous injury. The term “power tool” in all of the warnings
listed below refers to your mains-operated (corded) power
tool or battery-operated (cordless) power tool.
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 jewelry.
Keep your hair, clothing and gloves away from moving
parts. Loose clothes, jewelry 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 these devices
can reduce dust-related hazards.
Do not wear loose clothing or jewelry. Contain long
hair. Loose clothes, jewelry, or long hair can be drawn
into air vents.
SAVE THESE INSTRUCTIONS
WORK AREA SAFETy
Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
Do not operate power tools in explosive atmo-
spheres, 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
Do not use on a ladder or unstable support. Stable
footing on a solid surface enables better control of the
power tool in unexpected situations.
power tool. Distractions can cause you to lose control.
ELECTRICAL SAFETy
POWER TOOL USE AND CARE
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.
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.
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 elec-
tric shock.
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.
Disconnect 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.
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. Check for misalignment or bind-
ing 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.
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 exten-
sion cord suitable for outdoor use. Use of a cord suit-
able for outdoor use 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 safety equipment. Always wear eye protection.
Safety equipment such as dust mask, non-skid safety
shoes, hard hat, or hearing protection used for appropri-
ate conditions will reduce personal injuries.
Keep cutting tools sharp and clean. Properly main-
tained 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 and in the manner
intended for the particular type of power tool, taking
into account the working conditions and the work to
be performed. Use of the power tool for operations dif-
ferent from those intended could result in a hazardous
situation.
Avoid accidental starting. Ensure the switch is in the
off-position before plugging in. Carrying power tools
with your finger on the switch or plugging in power tools
that have the switch on invites accidents.
3
GENERAL SAFETy RULES
Whenservicingapowertool,useonlyidenticalreplace-
SERVICE
mentparts.FollowinstructionsintheMaintenancesec-
tion of this manual. Use of unauthorized parts or failure to
follow Maintenance instructions may create a risk of
shock or injury.
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.
WARNING!
To reduce the risk of injury, user must read instruction
manual.
SPECIFIC SAFETy RULES
Hold power tools by insulated gripping surfaces when
performing an operation where the cutting tool may
contact hidden wiring or its own cord. Contact with a
“live” wire will make exposed metal parts of the tool “live”
and shock the operator.
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 other part that
is damaged should be properly repaired or replaced
by an authorized service center. Following this rule will
reduce the risk of shock, fire, or serious injury.
Know your power tool. Read operator’s manual care-
fully. Learn its applications and limitations, as well as
the specific potential hazards related to this power
tool. Following this rule will reduce the risk of electric
shock, fire, or serious injury.
Make sure your extension cord is in good condition.
When using an extension cord, be sure to use one
heavy enough to carry the current your product will
draw. A wire gauge size (A.W.G.) of at least 16 is
recommended for an extension cord 50 feet or less
in length. A cord exceeding 100 feet is not recom-
mended. If in doubt, use the next heavier gauge. The
smaller the gauge number, the heavier the cord. An
undersized cord will cause a drop in line voltage resulting
in loss of power and overheating.
Always wear safety glasses. Everyday eyeglasses
have only impact-resistant lenses; they are NOT safety
glasses. Following this rule will reduce the risk of serious
personal injury.
Protect your lungs. Wear a face or dust mask if the
operation is dusty. Following this rule will reduce the
risk of serious personal injury.
Inspect for and remove all nails from lumber before
using this power tool. Following this rule will reduce the
risk of serious personal injury.
Protect your hearing. Wear hearing protection during
extended periods of operation. Following this rule will
reduce the risk of serious personal injury.
Ifthepowersupplycordisdamaged,itmustbereplaced
only by the manufacturer or by an authorized service
center to avoid risk.
Inspect power tool cords periodically and, if damaged,
have repaired at your nearest Authorized Service Cen-
ter. Constantly stay aware of cord location. Following
this rule will reduce the risk of electric shock or fire.
Save these instructions. Refer to them frequently and
use them to instruct others who may use this power tool.
If you loan someone this power tool, loan them these
instructions also.
Check damaged parts. Before further use of the power
tool, a guard or other part that is damaged should be
carefully checked to determine that it will operate
WARNING:
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals
known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:
• lead from lead-based paints,
• crystalline silica from bricks and cement and other masonry products, and
• arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to
these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks
that are specially designed to filter out microscopic particles.
4
SyMBOLS
Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper
interpretation of these symbols will allow you to operate the product better and safer.
SyMBOL
NAME
DESIGNATION/EXPLANATION
V
Volts
Voltage
Current
A
Hz
W
Amperes
Hertz
Frequency (cycles per second)
Power
Watt
min
Minutes
Time
Alternating Current
Direct Current
Type of current
Type or a characteristic of current
Rotational speed, at no load
Double-insulated construction
Revolutions, strokes, surface speed, orbits etc., per minute
n
o
No Load Speed
Class II Construction
Per Minute
.../min
Wet Conditions Alert
Do not expose to rain or use in damp locations.
To reduce the risk of injury, user must read and understand
operator’s manual before using this product.
Read The Operator’s Manual
Always wear safety goggles or safety glasses with side shields and,
as necessary, a full face shield when operating this product.
Eye Protection
Safety Alert
Precautions that involve your safety.
Failure to keep your hands away from the blade will result in serious
personal injury.
No Hands Symbol
Failure to keep your hands away from the blade will result in serious
personal injury.
No Hands Symbol
No Hands Symbol
No Hands Symbol
Failure to keep your hands away from the blade will result in serious
personal injury.
Failure to keep your hands away from the blade will result in serious
personal injury.
To reduce the risk of injury or damage, avoid contact with any hot
surface.
Hot Surface
5
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.
DANGER:
Indicates a potentially hazardous situation, which, if not avoided, could result
in death or serious injury.
WARNING:
CAUTION:
CAUTION:
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.
SERVICE
WARNING:
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 the nearest
AUTHORIZED SERVICE CENTER for repair. When servic-
ing, use only identical replacement parts.
To avoid serious personal injury, do not attempt to use this
product until you read thoroughly and understand com-
pletely the operator’s manual. If you do not understand
the warnings and instructions in the operator’s manual,
do not use this product. Call Ryobi customer service for
assistance.
WARNING:
The operation of any power tool can result in foreign objects being thrown into your eyes, which can
result in severe eye damage. Before beginning power tool operation, always wear safety goggles or
safety glasses with side shields and, when needed, a full face shield. We recommend Wide Vision
Safety Mask for use over eyeglasses or standard safety glasses with side shields. Always use eye
protection which is marked to comply with ANSI Z87.1.
SAVE THESE INSTRUCTIONS
6
ELECTRICAL
DOUBLE INSULATION
EXTENSION CORDS
Double insulation is a concept in safety in electric power
tools, which eliminates the need for the usual three-
wire grounded power cord. All exposed metal parts are
isolated from the internal metal motor components with
protecting insulation. Double insulated tools do not need
to be grounded.
When using a power tool at a considerable distance from
a power source, be sure to use an extension cord that has
the capacity to handle the current the product will draw. An
undersized cord will cause a drop in line voltage, resulting in
overheating and loss of power. Use the chart to determine
the minimum wire size required in an extension cord. Only
round jacketed cords listed by Underwriter’s Laboratories
(UL) should be used.
WARNING:
When working outdoors with a product, use an extension
cord that is designed for outside use. This type of cord is
designated with “WA” on the cord’s jacket.
The double insulated system is intended to protect
the user from shock resulting from a break in the tool’s
internal insulation. Observe all normal safety precautions
to avoid electrical shock.
Before using any extension cord, inspect it for loose or
exposed wires and cut or worn insulation.
NOTE:Servicingofaproductwithdoubleinsulationrequires
extreme care and knowledge of the system and should
be performed only by a qualified service technician. For
service, we suggest you return the product to your near-
est authorized service center for repair. Always use original
factory replacement parts when servicing.
**Ampere rating (on product data plate)
0-ꢀ.0
ꢀ.1-3.4 3.5-5.0 5.1-7.0 7.1-1ꢀ.0 1ꢀ.1-16.0
Cord Length
Wire Size (A.W.G.)
ꢀ5'
50'
16
16
16
16
16
16
16
16
14
16
14
1ꢀ
14
14
10
14
1ꢀ
—
ELECTRICAL CONNECTION
100'
This product has a precision-built electric motor. It should
be connected to a power supply that is 120 volts, 60 Hz,
AC only (normal household current). Do not operate this
product on direct current (DC). A substantial voltage drop
will cause a loss of power and the motor will overheat. If
the product does not operate when plugged into an outlet,
double-check the power supply.
**Used on 12 gauge - 20 amp circuit.
NOTE: AWG = American Wire Gauge
WARNING:
Keep the extension cord clear of the working area.
Position the cord so that it will not get caught on
lumber, tools, or other obstructions while you are working
with a power tool. Failure to do so can result in serious
personal injury.
WARNING:
Check extension cords before each use. If damaged
replace immediately. Never use the product with a
damaged cord since touching the damaged area could
cause electrical shock resulting in serious injury.
7
FEATURES
PRODUCT SPECIFICATIONS
No Load Speed ..................................... 1ꢀ,500/min (RPM)
Input ...............................1ꢀ0 V, 60 Hz, AC only, ꢀ.6 Amps
Net Weight...........................................................3-1/ꢀ lbs.
Sanding Disc Diameter................................................ 5 in.
Motion ......................................................... Random Orbit
Orbit Diameter........................................................3/3ꢀ in.
DUST BAG
ASSEMBLY
oN/off
SLIDE
SwITCh
BACKING PAD
Fig. 1
ON/OFF SLIDE SWITCH
This sander is equipped with a simple slide switch control.
KNOW yOUR SANDER
See Figure 1.
The safe use of this product requires an understanding of
the information on the tool and in this operator’s manual as
wellasaknowledgeoftheprojectyouareattempting.Before
use of this product, familiarize yourself with all operating
features and safety rules.
RANDOM ORBIT
The random orbit motion provides overlapping sanding
movements by combining orbital and spinning motion.
GRIPZONE™ OVERMOLD TECHNOLOGy
™
The sander features Gripzone overmold technology for
improved comfort with a positive grip.
8
ASSEMBLy
UNPACKING
This product has been shipped completely assembled.
WARNING:
If any parts are damaged or missing do not operate this
product until the parts are replaced. Failure to heed this
warning could result in serious personal injury.
Carefully remove the product and any accessories from
the box. Make sure that all items listed in the packing list
are included.
Inspect the product carefully to make sure no breakage
or damage occurred during shipping.
WARNING:
Do not discard the packing material until you have care-
Do not attempt to modify this tool or create accesso-
ries not recommended for use with this tool. Any such
alteration or modification is misuse and could result in a
hazardous condition leading to possible serious personal
injury.
fully inspected and satisfactorily operated the product.
If any parts are damaged or missing, please call
1-800-5ꢀ5-ꢀ579 for assistance.
PACKING LIST
Random Orbit Sander
Sandpaper (3 discs)
Dust Bag
WARNING:
Do not connect to power supply until assembly is
complete. Failure to comply could result in accidental
starting and possible serious personal injury.
Operator’s Manual
OPERATION
WARNING:
WARNING:
Do not allow familiarity with this product to make you
careless. Remember that a careless fraction of a second is
sufficient to inflict serious injury.
If your sanding job becomes particularly dusty or if
you have a breathing condition, wear a dust mask or
respirator to prevent damage to your health.
SELECTING SANDING DISCS
WARNING:
Selecting the correct size grit and type sanding disc is an
extremely important step in achieving a high quality sanded
finish. Aluminum oxide, silicon carbide, and other synthetic
abrasivesarebestforpowersanding.Naturalabrasives,such
as flint and garnet are too soft for use in power sanding.
Always wear safety goggles or safety glasses with side
shields when operating power tools. Failure to do so
could result in objects being thrown into your eyes
resulting in possible serious injury.
In general, coarse grit will remove the most material and finer
grit will produce the best finish in all sanding operations. The
condition of the surface to be sanded will determine which
grit will do the job. If the surface is rough, start with a coarse
grit and sand until the surface is uniform. Medium grit may
then be used to remove scratches left by the coarser grit and
finer grit used for finishing of the surface. Always continue
sanding with each grit until surface is uniform.
WARNING:
Do not use any attachments or accessories not
recommended by the manufacturer of this product. The
use of attachments or accessories not recommended
can result in serious personal injury.
APPLICATIONS
You may use this product for the purposes listed below:
Sanding on wood surfaces
Removing rust from and sanding steel surfaces
9
OPERATION
ATTACHING HOOK-AND-LOOP SANDING
DISCS
See Figure 2.
hooK-AND-LooP
SANDING DISC
NOTE: Use only 5 in. hook-and-loop sanding discs which
can be found at local home centers and hardware stores.
Unplug the sander.
Align the holes in the hook-and-loop sanding disc with
the holes in the backing pad.
BACKING PAD
NOTE: Line up the holes in the sanding disc with the
holes in the backing pad in order for the dustless feature
to function properly.
Press the fuzzy side of the sanding disc against the back-
ing pad as firmly as possible.
NOTE: You can reuse hook-and-loop type sanding discs
for the life of the sanding abrasive. We recommend that
you clean the backing pad occasionally by brushing it
lightly with a small brush for best adhesion.
TURNING THE SANDER ON/OFF
See Figure 3.
Fig. ꢀ
To turn the sander on: Slide the switch to the left (l).
To turn the sander off: Slide the switch to the right
(O).
DUSTLESS SANDING
To
TURN off
To
TURN oN
WARNING:
Do not use the dust bag when sanding metal. Using
the dust bag when sanding metal creates a fire hazard,
which could damage the tool and lead to serious per-
sonal injury.
The dust bag assembly provides a dust collection system
for the sander. Sanding dust is drawn up through the holes
of the sanding disc to collect in the dust bag during sanding
operation.
Fig. 3
NOTE: For more efficient operation, empty dust bag when
no more than half full. This will permit the air to flow through
the bag better.
10
OPERATION
TO ATTACH THE DUST BAG ASSEMBLy
See Figure 4.
Unplug the sander.
Slide the dust bag onto the dust exhaust on the sander
using a slight twisting motion.
TO EMPTy THE DUST BAG ASSEMBLy
See Figures 4 - 5.
Formoreefficientoperation,emptythedustbagwhenitisno
more than half full. This will permit the air to flow through the
bag better. Always empty and clean the dust bag thoroughly
upon completion of a sanding operation and before placing
the sander in storage.
DUST BAG
ASSEMBLY
DUST
EXhAUST
Fig. 4
WARNING:
Collected sanding dust from sanding surface coatings
such as polyurethanes, linseed oil, etc., can self-ignite
in the sander dust bag or elsewhere and cause fire. To
reduce the risk of fire, always empty the dust bag fre-
quently while sanding. Never store or leave a sander
without totally emptying its dust bag. Also follow the
recommendations of the coatings manufacturers.
DUST BAG
Unplug the sander.
fRAME
Remove the dust bag assembly from the sander.
Shake out the dust.
DUST EXhAUST
For a more thorough cleaning of the dust bag, remove
dust bag from the frame and shake out dust.
Fig. 5
Replace the dust bag assembly on the sander.
ATTACHING THE SANDER TO A VACUUM
See Figure 6.
When sanding for an extended period of time, you can
easily attach the dust collection system of the sander to a
vacuum.
Unplug the sander.
Remove the dust bag assembly from the sander.
Attach the vacuum hose to the dust exhaust on the
VACUUM
hoSE
sander.
DUST EXhAUST
NOTE: The vacuum hose fits inside the dust exhaust.
The figure illustrates a standard 1-1/4 in. vacuum
connection.
Fig. 6
Connect the sander and vacuum to a power supply.
11
OPERATION
OPERATING THE SANDER
See Figures 7 - 8.
Secure the work to prevent it from moving under the
sander.
WARNING:
Unsecured work could be thrown towards the operator
causing injury.
Place the sander on the workpiece so that all of the sand-
ing disc surface is in contact with the workpiece.
CAUTION:
Be careful not to let your hand cover the air vents.
Start the sander and move it slowly over the workpiece.
Make successive passes in parallel lines, circles, or
crosswise movements.
Fig. 7
NOTE: The front edge of the sander allows for flush
sanding.
Turn the sander off and wait until the sanding disc
comes to a complete stop before removing it from the
workpiece.
WARNING:
Before connecting the sander to power supply source,
always check to be sure the switch is not in the ON
position. Failure to do so could result in accidental starting
of the sander resulting in possible serious injury.
Do not press down on the sander. The weight of the unit
supplies adequate pressure, so let the sanding disc and
sander do the work. Applying additional pressure only slows
the motor, rapidly wears sanding disc, and greatly reduces
sander speed. Excessive pressure will overload the motor
causing possible damage from motor overheating and can
result in inferior work. Any finish or resin on woodmay soften
from the frictional heat. Do not allow sanding on one spot
too long as the sander’s rapid action may remove too much
material, making the surface uneven.
Fig. 8
Extended periods of sanding may tend to overheat the mo-
tor. If this occurs, turn sander off and wait until sanding disc
comes to a complete stop, then remove it from workpiece.
Remove the hand from vent area, remove sanding disc, then
with the hand removed from vent area, turn sander on and
run it free without a load to cool motor.
1ꢀ
MAINTENANCE
WARNING:
WARNING:
When servicing, use only identical replacement parts.
Use of any other parts may create a hazard or cause
product damage.
Do not at any time let brake fluids, 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:
Always 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.
Electrictoolsusedonfiberglassmaterial,wallboard,spackling
compounds, or plaster are subject to accelerated wear and
possible premature failure because the fiberglass chips and
grindings are highly abrasive to bearings, brushes, commu-
tators,etc.Consequently,wedonotrecommendedusingthis
tool for extended work on these types of materials. However,
if you do work with any of these materials, it is extremely
important to clean the tool using compressed air.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercialsolventsandmaybedamagedbytheiruse. Use
clean cloths to remove dirt, dust, oil, grease, etc.
LUBRICATION
All of the bearings in this product are lubricated with a suf-
ficient amount of high grade lubricant for the life of the unit
under normal operating conditions. Therefore, no further
lubrication is required.
13
OPERATOR’S MANUAL
RANDOM ORBIT SANDER
DOUBLE INSULATED
RS290
• SERVICE
Now that you have purchased your tool, should a need ever exist for repair parts or service,
simply contact your nearest Authorized Service Center. Be sure to provide all pertinent
facts when you call or visit. Please call 1-800-5ꢀ5-ꢀ579 for your nearest Authorized
list of Authorized Service Centers.
• MODEL NO. AND SERIAL NO.
The model number of this tool will be found on a plate attached to the motor housing.
Please record the model number and serial number in the space provided below.
• HOW TO ORDER REPAIR PARTS
When ordering repair parts, always give the following information:
RSꢀ90
• MODEL NUMBER
• SERIAL NUMBER
RYOBI® is a registered trademark of Ryobi Limited used under license.
ONE WORLD TECHNOLOGIES, INC.
14ꢀ8 Pearman Dairy Road, Anderson, SC ꢀ96ꢀ5
Phone 1-800-5ꢀ5-ꢀ579
987000-17ꢀ
8-ꢀ3-07 (REV:01)
|