OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
Cat. No. / No de cat.
2485-20
M12 FUEL™ DIE GRINDERS
MEULES À RECTIFIER M12 FUEL™
ESMERILES DE TROQUEL M12 FUEL™
WARNING To reduce the risk of injury, user must read and understand operator's manual.
WARNING To reduce the risk of injury, user must read and understand operator's manual.
AVERTISSEMENT An de réduire le risque de blessures, l'utilisateur doit lire et bien
AVERTISSEMENT An de réduire le risque de blessures, l'utilisateur doit lire et bien
comprendre le manuel.
comprendre le manuel.
ADVERTENCIA Para reducir el riesgo de lesiones, el usuario debe leer y entender el manual.
ADVERTENCIA Para reducir el riesgo de lesiones, el usuario debe leer y entender el manual.
GENERAL POWER TOOL
WARNING
SAFETY WARNINGS
Read all safety warnings, instruc-
tions 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-oper-
ated (cordless) power tool.
tions, illustrations and specica-
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 ammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
• Keep children and bystanders away while operat-
ing 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. Unmodied 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 ex-
tension 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 ground fault circuit interrupter
(GFCI) protected supply. Use of an GFCI 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 inuence 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 a 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 o-position before connecting to power
source and/or battery pack, picking up or carrying
the tool. Carrying power tools with your nger on the
switch or energizing 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
jewelry. Keep your hair and clothing 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 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 o. 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 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 aect
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
dierent 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 specied by the
manufacturer. A charger that is suitable for one type
of battery pack may create a risk of re when used
with another battery pack.
• Use power tools only with specically designated
battery packs. Use of any other battery packs may
create a risk of injury and re.
• 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 re.
• Under abusive conditions, liquid may be ejected
from the battery; avoid contact. If contact acci-
2
dentally occurs, ush 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
modied. Damaged or modied batteries may exhibit
unpredictable behavior resulting in re, explosion or
risk of injury.
• Do not expose a battery pack or tool to re or ex-
cessive temperature. Exposure to re or temperature
above 265°F (130°C) may cause explosion.
• Follow all charging instructions and do not charge
the battery pack or tool outside the temperature
range specied in the instructions. Charging im-
properly or at temperatures outside the specied range
may damage the battery and increase the risk of re.
SERVICE
• Have your power tool serviced by a qualied
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.
SPECIFIC SAFETY RULES FOR
DIE GRINDERS
Safety Warnings Common for Grinding, Sanding,
Wire Brushing, Polishing, Carving or Abrasive
Cutting-O Operations:
• This power tool is intended to function as a
grinder, sander, wire brush, polisher, carving or
cut-o tool. Read all safety warnings, instructions,
illustrations and specications provided with this
power tool. Failure to follow all instructions listed below
may result in electric shock, re and/or serious injury.
• Do not use accessories which are not specically
designed and recommended by the tool
manufacturer. Just because the accessory can be
attached to your power tool, it does not assure safe
operation.
• The rated speed of the grinding accessories must
be at least equal to the maximum speed marked
on the power tool. Grinding accessories running
faster than their rated speed can break and y apart.
• 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 controlled.
• The arbour size of wheels, sanding drum or any
other accessory must properly t the spindle
or collet of the power tool. Accessories that do
not match the mounting hardware of the power tool
will run out of balance, vibrate excessively and may
cause loss of control.
• Mandrel mounted wheels, sanding drums, cutters
or other accessories must be fully inserted into
the collet or chuck. If the mandrel is insuciently
held and/or the overhang of the wheel is too long, the
mounted wheel may become loose and be ejected
at high velocity.
• Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels for chips and cracks, sanding drum 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.
• 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 ying debris generated by various operations. The dust mask or respirator must be capable
of ltrating particles generated by your operation.
Prolonged exposure to 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 accessory may y away
and cause injury beyond immediate area of operation.
• Hold 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.
• Always hold the tool rmly in your hand(s) during
the start-up. The reaction torque of the motor, as it
accelerates to full speed, can cause the tool to twist.
• Use clamps to support workpiece whenever practical. Never hold a small workpiece in one hand
and the tool in the other hand while in use. Clamp-
ing a small workpiece allows you to use your hand(s)
to control the tool. Round material such as dowel rods,
pipes or tubing have a tendency to roll while being cut,
and may cause the bit to bind or jump toward you.
• 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.
• After changing the bits or making any adjustments, make sure the collet nut, chuck or any
other adjustment devices are securely tightened.
Loose adjustment devices can unexpectedly shift,
causing loss of control, loose rotating components
will be violently thrown.
• 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 ammable
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, sanding band, brush or any other ac-
cessory. 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. 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
3
WARNING
WARNING
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 rm grip on the power tool and position your body and arm to allow you to resist
kickback forces. The operator can control kickback
forces, if proper precautions are taken.
• 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 toothed saw blade. Such blades
create frequent kickback and loss of control.
• Always feed the bit into the material in the same
direction as the cutting edge is exiting from the
material (which is the same direction as the chips
are thrown). Feeding the tool in the wrong direction
causes the cutting edge of the bit to climb out of the
work and pull the tool in the direction of this feed.
• When using rotary les, cut-o wheels, highspeed cutters or tungsten carbide cutters, always
have the work securely clamped. These wheels will
grab if they become slightly canted in the groove, and
can kickback. When a cut-o wheel grabs, the wheel
itself usually breaks. When the rotary le, high-speed
cutter or tungsten carbide cutter grabs, it may jump
from the groove and you could lose control of the tool.
Safety Warnings Specic for Grinding and Abrasive Cutting-O Operations:
• Use only wheel types that are recommended
for your power tool and only for recommended
applications. For example: do not grind with the
side of a cut-o wheel. Abrasive cut-o wheels are
intended for peripheral grinding, side forces applied
to these wheels may cause them to shatter.
• For threaded abrasive cones and plugs use only
undamaged wheel mandrels with an unrelieved
shoulder ange that are of correct size and length.
Proper mandrels will reduce the possibility of breakage.
• Do not “jam” a cut-o 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 snagging of
the wheel in the cut and the possibility of kickback
or wheel breakage.
• Do not position your hand in line with and behind
the rotating wheel. When the wheel, at the point of
operation, is moving away from your hand, the possible kickback may propel the spinning wheel and
the power tool directly at you.
• When wheel is pinched, snagged or when inter-
rupting a cut for any reason, switch o the power
tool and hold the power tool motionless until the
wheel comes to a complete stop. Never attempt
to remove the cut-o 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
reenter the cut. The wheel may bind, walk up or kick-
back 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.
Safety Warnings Specic for Wire Brushing Operations:
• Be aware that wire bristles are thrown by the
brush even during ordinary operation. Do not
overstress the wires by applying excessive load
to the brush. The wire bristles can easily penetrate
light clothing and/or skin.
• Allow brushes to run at operating speed for at
least one minute before using them. During this
time no one is to stand in front or in line with the
brush. Loose bristles or wires will be discharged
during the run-in time.
• Direct the discharge of the spinning wire brush
away from you. Small particles and tiny wire fragments may be discharged at high velocity during the
use of these brushes and may become imbedded in
your skin.
Additional Safety Warnings
•
able amount of dust, use an OSHA compliant dust
extraction solution in accordance with the solution’s operating instructions.
• Always use common sense and be cautious when
using tools. It is not possible to anticipate every
situation that could result in a dangerous outcome.
Do not use this tool if you do not understand these
operating instructions or you feel the work is beyond
your capability; contact Milwaukee Tool or a trained
professional for additional information or training.
• Maintain labels and nameplates. These carry
important information. If unreadable or missing, contact
a MILWAUKEE service facility for a free replacement.
•
construction activities contains chemicals known to
cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
• lead from lead-based paint
• 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
lter out microscopic particles.
• Do not use this tool to work on asbestos-containing
products. Determine the composition of the workpiece
before beginning work. Asbestos should only be
removed by a qualied professional
To reduce the risk of injury in applications that produce a consider-
Some dust created by power sanding,
sawing, grinding, drilling, and other
.
SPECIFICATIONS
Cat. No. ..................................................... 2485-20
Volts.............................................................. 12 DC
Battery Type .................................................M12™
Charger Type................................................M12™
Rated RPM ...................................................24,500
1/4" Collet ............................................. 48-66-0974
1/8" Accessory Collet ............................ 42-77-0405
Max Accessory Ø .................................. 2" / 55 mm
Recommended Ambient
Operating Temperature .................... 0°F to 125°F
4
SYMBOLOGY
C
US
WARNING
WARNING
WARNING
WARNING
Volts
Direct Current
Rated Revolutions per Minute (RPM)
UL Listing for Canada and U.S.
FUNCTIONAL DESCRIPTION
1
1. Collet nut
2. Mode selector
3. Fuel gauge
4. Handle
5. LED
2
6. Switch lock-o
7. Paddle switch
8. 11/16" wrench (not shown)
9. 1/2" wrench (not shown)
3
7
4
5
6
ASSEMBLY
Recharge only with the charger
cic charging instructions, read the operator’s
manual supplied with your charger and battery.
To remove the battery, push in the release buttons
and pull the battery pack away from the tool.
is not in use.
To insert the battery, slide the pack into the body
of the tool. Make sure it latches securely into place.
may be hazardous.
Only use accessories with Maximum Safe Operat-
ing Speed rated at least equal to the maximum
speed marked on the power tool. This speed is
based on the strength of the accessory, allowing
for a reasonable measure of safety. It is not
meant to imply a best or most ecient operat-
ing speed. Do not exceed the Maximum Safe
Operating Speed.
Points, cones, plugs, grinding wheels and cut-o
wheels should be protected from:
• wetness and extreme humidity
• any type of solvent
• extreme changes in temperature
• dropping and bumping
specied for the battery. For spe-
Removing/Inserting the Battery
Always lock the trigger or remove
the battery pack any time the tool
Only use accessories specically
recommended for this tool. Others
Accessories
Points, cones, plugs, grinding wheels and cut-o
wheels should be stored:
• in an organized way so points, cones, plugs or
wheels can be removed without disturbing or damaging other points, cones, plugs or wheels
• with their safety information
Points, cones, plugs, grinding wheels and cut-o
wheels should NOT be dropped, rolled or bumped.
Discard points, cones, plugs, or wheels that have
been dropped, rolled, bumped, subjected to extreme
changes in temperature, or come into contact with
solvents or wetness.
The collet must be attached to the collet nut before
installing the collet assembly to the tool. Be sure that
the collet size matches the size of the mandrel you
will use, otherwise the collet may break.
1. To assemble, place collet on an even surface, and
place the nut over the collet.
2. Press down on the nut to snap the nut and collet
together.
3. To disassemble, use a rod to push the collet out
of the nut.
1. Remove dust and debris from the collet body
before inserting accessory.
2. Insert the collet with the collet nut attached into the
collet body. Thread the collet nut onto the spindle
but do not tighten it yet.
3. Clean the accessory mandrel, then insert it a
minimum of 1" into the collet. The mandrel will
overhang the collet and the accessory about 1/2".
Insert mandrel
a minimum of 1" inside the collet
4. Hold the spindle shaft steady with
a 1/2" open end wrench and se-
curely tighten the collet nut with
an 11/16" open end wrench.
5. Reverse the procedure when
removing the accessory.
curely tighten the collet to the
grinders and clean mandrels before inserting them into the collet.
Otherwise the high-speed rotation
of the tool could force the accessory to y out of the collet.
Installing Collets
Installing Accessories
Collet
To reduce the risk of
injury, always se-
Mandrel
Overhang about 1/2"
Accessory
5
OPERATION
WARNING
WARNING
WARNING
WARNING
To reduce the risk of injury, always
to comply with ANSI Z87.1.
When working in dusty situations, wear appro-
priate respiratory protection or use an OSHA
compliant dust extraction solution.
To determine the amount of charge left in the battery,
turn the tool ON. The Fuel Gauge will light up for 2-3
seconds. When less than 10% of charge is left, 1 light
on the fuel gauge will ash 4 times.
To signal the end of charge, 1 light on the fuel gauge
will ash 8 times and the tool will not run. Charge
the battery pack.
If the battery becomes too hot, the fuel gauge lights
will ash in an alternating pattern and the tool will not
run. Allow the battery to cool down.
The mode selector button is used to
adjust the rotation speed (RPM) for
the application.
To select the mode:
1. Push the switch lock-o forward
then squeeze and release the
paddle switch. The current mode
indicator number is lit.
2. Press the mode selector button
to cycle through the 4 modes. When the desired
mode indicator number is lit, begin work.
Mode 1 2 3 4
RPM 0 - 10,000 0 - 15,000 0 - 20,000 0 - 24,500
1. If you have just installed an accessory or are
beginning a period of work, test it by letting it spin
for one minute before applying it to the workpiece.
WARNING! Never use an accessory that has been
dropped. Out-of-balance or damaged accessories
can mar workpiece, damage the tool, and cause
stress that may cause accessory failure.
2. Use a clamp, vise or other practical means to hold
your work.
3. To start the tool, push the switch lock-o forward
(1) and squeeze the paddle switch (2). NOTE: An
LED is turned on when the switch is pulled.
4. Allow accessory to come to full speed before
beginning work.
5. To vary the speed, increase or decrease pressure
on the switch. The further the switch is pulled, the
greater the speed.
wear proper eye protection marked
Fuel Gauge
Using the Mode Selector
General Operation
2
1
6. Control pressure and surface contact between ac-
cessory and workpiece. WARNING! Never bang
accessories onto work.Too much pressure causes
accessory failure or slows speed.
7.
To stop the tool, release the switch. Make sure the tool
comes to a complete stop before laying the tool down.
If the grinder begins vibrating, immediately stop
the motor and check to see if the accessory
is dull. Dull accessories will cause the tool to
vibrate and could force the collet to y o the
tool. Always replace or sharpen dull accessories.
Accessories are design for specic uses. Only use
points, cones, plugs, grinding wheels and cut-o
wheels for applications for which they were designed.
Follow manufacturer's care and use instructions.
MAINTENANCE
To reduce the risk of injury, always
battery pack from the charger or tool before
performing any maintenance. Never disassemble
the tool, battery pack or charger. Contact a
MILWAUKEE service facility for ALL repairs.
Keep your tool, battery pack and charger in good
repair by adopting a regular maintenance program.
Inspect your tool for issues such as undue noise,
misalignment or binding of moving parts, breakage of
parts, or any other condition that may aect the tool
operation. Return the tool, battery pack, and charger
to a MILWAUKEE service facility for repair. After six
months to one year, depending on use, return the
tool, battery pack and charger to a MILWAUKEE
service facility for inspection.
If the tool does not start or operate at full power with
a fully charged battery pack, clean the contacts on
the battery pack. If the tool still does not work properly, return the tool, charger and battery pack, to a
MILWAUKEE service facility for repairs.
your tool, battery pack or charger in liquid or
allow a liquid to ow inside them.
Clean dust and debris from any vents. Keep tool
clean, dry and free of oil or grease. Use only mild
soap and a damp cloth to clean, since certain cleaning agents and solvents are harmful to plastics and
other insulated parts. Some of these include gasoline,
turpentine, lacquer thinner, paint thinner, chlorinated
cleaning solvents, ammonia and household deter-
gents containing ammonia. Never use ammable or
combustible solvents around tools.
For repairs, return the tool, battery pack and charger
to the nearest authorized service center.
unplug the charger and remove the
Maintaining Tool
To reduce the risk of personal injury and damage, never immerse
Cleaning
Repairs
ACCESSORIES
Use only recommended accesso-
For a complete listing of accessories, go online to
www.milwaukeetool.com or contact a distributor.
ries. Others may be hazardous.
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