Ryobi ERO240RG Operation manual

RANDOM ORBITAL SANDER
OWNER’S OPERATING MANUAL
ERO240RG

1. Power switch
2. Quick change hook and loop pad
3. Dust bag with frame
4. Variation speed control
5. Sandpaper
6. Live tool indicator
DESCRIPTION
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Fig. 1
Fig. 3Fig. 2
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Important!
It is essential that you read the instructions in this manual before
operating this machine.
Subject to technical modifications.

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GENERAL POWER TOOL SAFETY WARNINGS
WARNING
Read all safety warnings and all instructions. Failure
tofollowthewarningsandinstructionsmayresultinelectric
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
a. Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
b. 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.
c. Keep children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
2. ELECTRICAL SAFETY
a. Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adaptor plugs with earthed (grounded) power
tools. Unmodified plugs and matching outlets will
reduce risk of electric shock.
b. 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.
c. Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
d. 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.
e. 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.
f. If operating power tools 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
a. 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.
b. 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.
c. 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.
d. 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.
e. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
f. Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves
away from moving parts. Looseclothes,jewellery
or long hair can be caught in moving parts.
g. 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.
4. POWER TOOL USE AND CARE
a. 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.
b. Do not use the power tool if the switch does not
turn it on and off. Any power tool that can not be
controlled with the switch is dangerous and must
be repaired.
c. 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.
d. 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.
e. Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tools operation. If damaged, have the
power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
f. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.

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g. 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 different from
intended could result in a hazardous situation.
5. SERVICE
a. 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.
SPECIAL SAFETY RULES
This product is not intended for use by persons
(including children) with reduced physical,
sensory or mental capabilities, or lack of
experience and knowledge, unless they have been
given supervision or instruction concerning use
of the product by a person responsible for their
safety. Children should be supervised to ensure
that they do not play with the product.
Keep children and visitors away. Visitors should
wear safety glasses and be kept at a safe distance
from work area. Do not let visitors contact tool or
extension cord.
Complies with AS/NZS 60745.
It is recommended that this tool always be supplied via
a residual current device with a rated residual current
of 30mA or less.
SPECIFIC SAFETY INSTRUCTIONS FOR
SANDERS
Always wear safety goggles and a dust mask when
sanding, especially sanding over-head.
The product is not suitable for wet sanding.
Do not use sanding paper larger than needed.
Extra paper extending beyond the sanding pad can
also cause serious lacerations.
The dust bag shall be equipped with the product. It
should be emptied frequently. To connect a dust bag,
insert the adaptor of dust bag to the dust-collection
opening on the rear end of the sander.
WARNING
Do not throw sanding dust on an open fire because
materials in fine particle form may be explosive.
WARNING
A suitable breathing respirator must be worn while
sanding lead paint, some woods and metal to avoid
breathing the harmful/toxic dust or air.
SYMBOL
Safety Alert
V Volts
Hz Hertz
Alternating Current
W Watts
noNo-load speed
min-1Revolutions or reciprocations per minute
Orbital Diameter
Conformity
Double insulation
Wear ear protection
Wear eye protection
Please read the instructions carefully before
starting the product.
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.
SPECIFICATIONS
Input 240 V 50 Hz
Wattage 240 W
No-load speed 7000 - 12000 min-1
Orbital diameter 2.4 mm
Pad size 125 mm
Weight 1.7 kg
APPLICATIONS
Use only for the purposes listed below:
sanding on wood surfaces
removing rust from and sanding steel surfaces
sanding plastics

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FEATURES
Your sander is suitable for sanding with coarse, medium,
and fine grit sandpaper. It will produce a fine scratch-free
finish when used to sand with the grain on wood surfaces.
Your sander has a comfortable palm grip handle that
provides maximum one-hand comfort, and reduces
operator fatigue during continuous sanding operations.
Your sander also has a built-in dust collection that collects
dustthroughpunched holes in the sandpaper andcushion.
Before attempting to use your sander, familiarize
yourself with all operating features and safety
requirements.
SWITCH
This tool is equipped with a simple switch control. To turn
the sander on, slide the switch to the left. Slide the switch
to the right to turn the sander off.
VARIABLE SPEED CONTROL
Your sander has advanced electronic features, designed
to assist you in getting the maximum use from your
sander. By making proper speed selections, your sander
can be adjusted to specific sanding needs.
The variable speed control allows the sander to develop a
no-load speed that can be adjusted from 7,000 to 12,000
min-1. The variable speed control selector is conveniently
located at the back of the sander.
The electronic feature of your sander introduces the
flexibility of adjusting the motor speed to required job
conditions. An electronic speed control module senses
the load applied to the motor and increases or decreases
motor voltage to compensate for and maintain desired
RPM. Speed can be set according to the sanding purpose
or the surface of the workpiece you will be using. Increase
speed for rough surfaces or for quick removal of stock and
decrease speed for smaller, delicate sanding applications.
WARNING
Do not allow familiarity with your sander to make you
careless. Remember that a careless fraction of a
second is sufficient to inflict severe injury.
OPERATION
WARNING
The tool should never be connected to power supply
when you are assembling parts, making adjustments,
assembling or replacing sandpaper, cleaning, or when
the tool is not in use. Disconnecting the tool will prevent
accidental starting that could cause serious personal
injury.
INSTALLING SANDPAPER
Inspect the sandpaper before installing. Do not use if it is
broken or defective.
INSTALLING ADHESIVE (HOOK AND LOOP)
SANDPAPER
See Figure 4.
1. Unplug the tool.
WARNING
Failure to unplug the tool could result in accidental
starting causing possible serious injury.
2. Align the holes in the hook and loop type sanding disc
with holes in pad, then carefully press the fuzzy side
of sanding disc against the pad as tightly as possible.
NOTE: Hook and loop type sanding discs can be reused
for the life of the sanding abrasive. It is recommended that
you keep the sanding disc backing pad clean to provide
for best adhesion. Clean occasionally by brushing lightly
with a small brush.
WARNING
Do not use sander without sandpaper, doing so will
damage the cushion.
CAUTION
Be careful not to let your hand completely cover the air
vents.
SANDING
See Figure 1.
WARNING
Unsecured work could be thrown towards the operator
causing injury.
Hold your sander in front and away from you, keeping it
clear of the workpiece. Start your sander by pressing the
switch button to "on" position and letting the motor build to
its maximum speed. Gradually lower your sander on the
work with a slight forward movement. Move it slowly using
forward and backward strokes.
Do not force. 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 wood may soften
from the frictional heat.

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Do not allow sanding on one spot too long as the sander’s
rapid action may remove too much material, making the
surface uneven.
Extended periods of sanding may tend to overheat the
motor. If this occurs, turn sander off and wait until sanding
disc comes to a complete stop, unplug the sander, then
remove it from the workpiece. Allow the tool to cool down.
ORBITAL MOTION
See Figure 2.
Orbitalmotionisidealforfastcutting action whenremoving
old finishes, smoothing rough wood, cutting stock down to
required dimensions or for finishing surfaces to be painted.
The sandpaper moves in tiny circles at a very high speed,
allowing the sander to move easily.
WARNING
Collected sanding dust from sanding surface coatings
such as polyurethanes, linseed oil, etc., can self-ignite
in your sander dust collection box or elsewhere and
cause fire. To reduce the risk of fire always empty your
dust collection box frequently (10-15 minutes) while
sanding and never store or leave a sander without
totally emptying its dust collection box. Also follow the
recommendations of the coatings manufacturers.
USING THE DUST BAG ASSEMBLY
The dust bag assembly provides a dust collection system
for the sander. Sanding dust is drawn up through the holes
of the sanding disc and collected in the dust bag during
sanding.
TO ATTACH THE DUST BAG ASSEMBLY
See Figure 3.
Follow these directions to attach the dust bag assembly.
1. Unplug the tool.
WARNING
Failure to unplug the tool could result in accidental
starting causing possible serious injury.
2. Using a slight twisting motion, firmly slide the dust
collection bag assembly in the blower exhaust on the
sander.
EMPTYING THE DUST COLLECTION BAG ASSEMBLY
See Figure 4.
For more efficient operation, empty the dust collection
box when it is no more than half full. This will permit the
air to flow through the dust collection box better. Always
empty and clean the dust collection box thoroughly upon
completion of a sanding operation and before placing the
sander in storage.
TO EMPTY DUST BAG
1. Unplug the tool.
WARNING
Failure to unplug the tool could result in accidental
starting causing possible serious injury.
2. Remove the dust bag assembly from the sander.
3. Remove the dust bag from the frame.
4. Shake out the dust.
5. Replace the dust bag on the frame.
6. Replace the dust bag assembly on the sander.
LIVE TOOL INDICATOR
This tool features a live tool indicator which illuminates as
soon as the tool is connected to the supply. This warns the
user that the tool is connected and will operate when the
switch is pressed.
MAINTENANCE
WARNING
The tool should never be connected to a power supply
when you are assembling parts, making adjustments,
cleaning, performing maintenance, or when the tool is
not in use. Disconnecting the tool will prevent accidental
starting that could cause serious injury.
WARNING
When servicing, use only identical replacement parts.
Use of any other parts may create a hazard or cause
product damage.
GENERAL
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 fluids, gasoline, petroleum-
based products, penetrating oils, etc., come in contact
with plastic parts. They contain chemicals that can
damage, weaken or destroy plastic.
Electric tools used on fiberglass material, 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, commutators, etc. Consequently, we
do not recommend using the tool for extended work on
these types of materials. However, if you do work with any

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of these materials, it is extremely important to clean the
tool using compressed air.
LUBRICATION
All of the bearings in this tool are lubricated with a
sufficient amount of high grade lubricant for the life of
the unit under normal operating conditions. Therefore, no
further lubrication is required.
CLEANING THE SANDING SHEETS
The sanding sheets that came with your sander are
made to be re-used. Therefore, it is important that they
be cleaned periodically to remove sanding residue and
foreign material that can accumulate over time.
One of the ways to clean sanding sheets is to rub the
sheets with a hard rubber block. You can also use the
clean rubber sole of a shoe.
WARNING
Always remove scrubbing or sanding pad from sander
before cleaning. Failure to do so could cause serious
personal injury.

TECHTRONIC INDUSTRIES (AUSTRALIA) PTY. LTD.
Level 1. 666 Doncaster Road,
Doncaster, Victoria 3108
Australia.
Tel: [phone] Fax No.: 613 9840 6133 www.ryobi.com.au