Ryobi EAG85125RG Operation manual

GRINDER SANDER
OWNER’S OPERATING MANUAL
EAG85125RG

Fig. 2
Fig. 1
Fig. 3
1. Switch trigger
2. Lock button
3. Wheel guard
4. Auxiliary handle
5. Rotary lock button
6. Variable speed dial
7. Disc flange
8. Clamp nut
9. Spindle shaft
10. Grinding wheel
11. Sanding paper
12. Sanding pad
13. Wrench
14. Spindle lock button
15. Live tool indicator
16. Wheel guard lock lever
DESCRIPTION
1
4
13
13
12
11
215
16
14
3
7
10
56

Fig. 5Fig. 4
Fig. 8
Fig. 6 Fig. 7
Fig. 9
13
12
8
5
6
9
8
10
7
9

Fig. 11 Fig. 12
16
16
2
3
90˚
90˚
Fig. 10

Important!
It is essential that you read the instructions in this manual before
operating this machine.
Subject to technical modifications.

1
GENERAL POWER TOOL SAFETY WARNINGS
WARNING
Read all safety warnings and all instructions. Failure
to follow the warnings and instructions may result in
electric shock, fire and/or serious injury.
Save all warnings and instructions for future
reference.
The term “power tool” in the warnings refers to your
mains-operated (corded) power tool or battery-operated
(cordless) power tool.
1. WORK AREA SAFETY
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. Loose clothes, 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.

2
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.
SAFETY WARNINGS COMMON FOR GRINDING
AND SANDING OPERATIONS
a. This power tool is intended to function as
a grinder and sander tool. 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, fire and/or serious injury.
b. Operations such as wire brushing, polishing
or cutting-off are not recommended to be
performed with this power tool. Operations for
which the power tool was not designed may create
a hazard and cause personal injury.
c. Do not use accessories which are not
specifically designed and recommended by the
tool manufacturer. Just because the accessory
can be attached to your power tool, it does not
assure safe operation.
d. 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.
e. 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.
f. The arbour size of wheels, flanges, backing
pads or any other accessory must properly
fit the spindle of the power tool. Accessories
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.
g. Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels for chips and cracks, backing pad
for cracks, tear or excess wear, wire brush
for loose or cracked wires. If power tool or
accessory is dropped, inspect for damage
or install an undamaged accessory. After
inspecting and installing an accessory,
position yourself and bystanders away from
the plane of the rotating accessory and run the
power tool at maximum no-load speed for one
minute. Damaged accessories will normally break
apart during this test time.
h. Wear personal protective equipment.
Depending on application, use face
shield, safety goggles or safety glasses.
As appropriate, wear dust mask, hearing
protectors, gloves and workshop 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 your operation. Prolonged exposure to high
intensity noise may cause hearing loss.
i. 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 accessory
may fly away and cause injury beyond immediate
area of operation.
j. Hold power tool by insulated gripping surfaces
only, when performing an operation where the
cutting accessory may contact hidden wiring
or its own cord. Cutting accessory contacting a
“live” wire may make exposed metal parts of the
power tool “live” and shock the operator.
k. 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 accessory.
l. Never lay the power tool down until the
accessory has come to a complete stop. The
spinning accessory may grab the surface and pull
the power tool out of your control.
m. 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.
n. 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.
o. Do not operate the power tool near flammable
materials. Sparks could ignite these materials.
p. 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, backing pad, brush or any other accessory.
Pinching or snagging causes rapid stalling of the rotating
accessory which in turn causes the uncontrolled power tool
to be forced in the direction opposite of the accessory’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

3
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.
a. 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.
b. Never place your hand near the rotating
accessory. Accessory may kickback over your
hand.
c. Do not position your body in the area where
power tool will move if kickback occurs.
Kickback will propel the tool in direction opposite
to the wheel’s movement at the point of snagging.
d. 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.
e. Do not attach a saw chain woodcarving blade
or toothed saw blade. Such blades create
frequent kickback and loss of control.
SAFETY WARNINGS SPECIFIC FOR GRINDING
OPERATIONS
a. Use only wheel types that are recommended
for your power tool and the specific guard
designed for the selected wheel. Wheels for
which the power tool was not designed cannot be
adequately guarded and are unsafe.
b. The guard must be securely attached to the
power tool and positioned for maximum safety,
so the least amount of wheel is exposed
towards the operator. The guard helps to protect
operator from broken wheel fragments and
accidental contact with wheel.
c. 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.
d. Always use undamaged wheel flanges that are
of correct size and shape for your selected
wheel. Proper wheel flanges support the wheel
thus reducing the possibility of wheel breakage.
Flanges for cut-off wheels may be different from
grinding wheel flanges.
e. Do not use worn down wheels from larger
power tools. Wheel intended for larger power tool
is not suitable for the higher speed of a smaller tool
and may burst.
SAFETY WARNINGS SPECIFIC FOR SANDING
OPERATIONS
Do not use excessively oversized sanding disc
paper. Follow manufacturers recommendations,
when selecting sanding paper. Larger sanding paper
extending beyond the sanding pad presents a laceration
hazard and may cause snagging, tearing of the disc or
kickback.
SPECIAL SAFETY RULES
a. 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.
b. Keep children and visitors away. Visitors should
wear safety glasses and be kept at a safe distance
from work area. Do not let visitors come in contact
with the tool or the extension cord.
c. Complies with AS/NZS 60745.
d. It is recommended that this tool always be supplied
via a residual current device with a rated residual
current of 30mA or less.
SYMBOL
Safety Alert
V Volts
Hz Hertz
Alternating Current
W Watts
nₒNo-load speed
n Rated speed
min־¹ Revolutions or reciprocations per minute
Regulatory Compliance Mark (RCM). Product
meets applicable regulatory requirements.
Double insulation
Wear ear protection
Wear eye protection

4
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.
Recycle raw materials instead of disposing
of as waste. The machine, accessories and
packaging should be sorted for environmental-
friendly recycling.
SPECIFICATIONS
Grinding wheel diameter 125 mm (5 in)
Voltage 240 V 50 Hz
Input 850 W
Spindle thread M14 x 2
Rated speed 5,000 - 11,000 min-1
Disc bore size 22.2 mm
Net weight 2.8 kg
NOTE: Be sure to check the nameplate on the product,
because the voltage is subject to change depending on
the area in which the product is to be used.
STANDARD ACCESSORIES
See figure 1 and 3.
Auxiliary handle
Wrench
Grinding wheel
Sanding paper
Sanding pad
APPLICATIONS
Use only for the purposes listed below:
Grinding: metals
Sanding: metals
OPERATION
WARNING
The tool should never be connected to the power supply
when 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.
MAIN HANDLE
See figure 4.
The main handle can be set to right and left at any of the
three positions (0 and 90 degrees) by pressing the rotary
lock button.
THREE-POSITION AUXILIARY HANDLE
See figure 2.
Specifically designed and angled to three-position for
maximum comfort and control.
SWITCH
See figure 1.
To turn the tool on, press the lock button and then pull
the switch trigger.
To turn the tool off, release the switch trigger.
TOOL-LESS WHEEL GUARD
See figure 11 and 12.
Release the wheel guard lock lever, then turn the tool-less
wheel guard to the desired position. The maximum turning
angle is 90° on either side; otherwise, the guard cannot
be locked.
VARIABLE SPEED DIAL
See figure 5.
A variable speed dial is separated with the trigger switch.
You can select different speed by adjusting this dial. To
have the lowest speed application, turn the dial to “1”. To
have full speed application, turn the dial to “Max”.
WARNING
Never become complacent while using your grinder
sander, as carelessness can result in serious personal
injury.
MOUNTING THE GRINDING WHEEL
See figure 6 and 7.
Inspect grinding wheel before installing. Do not use
broken or defective parts.
1. Unplug the tool.
WARNING
Failure to unplug the tool could result in accidental
starting causing possible serious personal injury.
2. Attach the disc flange, the grinding wheel and the
clamp nut to the spindle shaft.
3. Ensure that the wheel is correctly seated over the boss
on the disc flange and clamp nut.
4. Depress the spindle lock button located at the right
side of the gear case.
5. Using the wrench provided, tighten the clamp nut in a

5
clockwise direction.
MOUNTING THE SANDING PAD
See figure 8.
1. Unplug the tool.
2. Attach the sanding pad to the spindle shaft. Disc
flange and clamp nut are not necessary for this
sanding application.
3. Depress the spindle lock button on the right hand side
of the gear case.
4. Tighten the sanding pad in a clockwise direction by
hand.
NOTE: Do not use sander without sandpaper. Doing so
will damage the cushion.
GRINDING
See figure 9.
The key to efficient operation is controlling the pressure
and surface contact between the grinding wheel and
workpiece. Flat surfaces are ground at an acute angle,
usually 15 to 20 degrees with the workpiece. Allow the
wheel to reach full speed before starting to grind. Too
great an angle causes concentration of pressure on a
small area which may gouge or burn workpiece.
SANDING
See figure 10.
Choose sanding paper carefully for each application
for best operation and finish. The wheel guard can be
removed or kept as it is during sanding, but it is suggested
to keep the wheel guard on.
To have the best sanding result, it is recommended to
work with lower speed. Refer to the table for the proper
speed selection.
Application Speed setting
Sanding 1 - 3
Grinding 4 - Max
WARNING
The no-load speed for the sanding pad is 8000 rpm
(maximum).
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
After use, check the tool to make sure that it is in good
condition.
It is recommended that you take this tool to a Ryobi
authorised service center for a thorough cleaning and
lubrication at least once a year.
WARNING
Do not make any adjustments while the motor is in
motion.
Always disconnect the power cord from the socket
before changing removable or expendable parts
(grinding disc, sanding pad, sanding paper etc.), before
lubricating or working on the unit.
If the supply cord is damaged, it shall be replaced by
the manufacturer or its service agent or similar qualified
person in order to avoid a hazard.
WARNING
To ensure safety and reliability, all repairs should be
performed by an authorised service center or other
qualified service organisation.

20140116
Techtronic Industries (Australia) Pty. Ltd.
Level 1, 660 Doncaster Road
Doncaster, VIC 3108, Australia
Techtronic Industries New Zealand Ltd.
18-26 Amelia Earhart Avenue
Mangere, Auckland 2022, New Zealand