Milwaukee 2738-20 Operator's Manual
Cat. No. / No de cat.
2738-20
M18™ 7" VARIABLE SPEED POLISHER
POLISSEUSE À VITESSE VARIABLE M18™ DE 180 mm (7")
PULIDORA M18™ DE 180 mm (7") DE VELOCIDAD VARIABLE
OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
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
comprendre le manuel.
ADVERTENCIA Para reducir el riesgo de lesiones, el usuario debe leer y entender el manual.
2
GENERAL POWER TOOL
SAFETY WARNINGS
WARNING
Read all safety warnings, instructions, illustrations and specifica-
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 in
-
structions 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
• 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 operating
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. Un
-
modied 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 condi
-
tions. W
ater entering a power tool will increase the
risk of electric shock.
• Do not abuse the cord. Never use the cord for car
rying, 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. Us
e 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 off-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 ro
-
tating 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 col
-
lection 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 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 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. Pow
-
er 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 affect 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 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, 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 hazard
-
ous 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 ac
cidentally 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
3
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 manu
-
facturer or authorized service providers.
SPECIFIC SAFETY RULES FOR
POLISHERS
Safety Warnings Common for Polishing:
• This power tool is intended to function as a polish
-
er. Read all safety warnings, instructions, illustra-
tions and specications provided with this power
tool. Failure to follow all instructions listed below
may result in electric shock, re and/or serious injury.
• Operations such as grinding, sanding, wire brush
ing 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.
• Do not use accessories which are not specically
designed and recommended by the tool manufac
turer. Just because the accessory can be attached to
your power tool, it does not assure safe operation.
• 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 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 guarded or controlled.
• Threaded mounting of accessories must match the
polisher spindle thread. For accessories mounted
by anges, the arbour hole of the accessory must
t the locating diameter of the ange. 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.
• 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 maxi
-
mum no-load speed for one minute. Damaged ac-
cessories 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 ex
-
posure 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 work
-
piece or of a broken accessory may y away and cause
injury beyond immediate area of operation.
• Never lay the power tool down until the accessory
has come to a complete stop. The spinning acces
-
sory may grab the surface and pull the power tool out
of your control.
• 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 cool
-
ants. 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 acces
-
sory. Pinching or snagging causes rapid stalling of the
rotating accessory which in turn causes the uncon
-
trolled 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 enter
-
ing 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 opera
-
tor, 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 in
-
correct 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. Always use auxiliary handle, if provided, for
maximum control over kickback or torque reaction
during start-up. The operator can control torque reac
-
tions or kickback forces, if proper precautions are taken.
• Never place your hand near the rotating accessory.
Accessory may kickback over your hand.
• 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.
• Use special care when working corners, sharp
edges etc. Avoid bouncing and snagging the ac
-
cessory. Corners, sharp edges or bouncing have a
tendency to snag the rotating accessory and cause
loss of control or kickback.
• Do not attach a saw chain woodcarving blade or
toothed saw blade. Such blades create frequent
kickback and loss of control.
Safety Warnings Specic for Polishing Operations:
• Do not allow any loose portion of the polishing
bonnet or its attachment strings to spin freely.
Tuck away or trim any loose attachment strings.
Loose and spinning attachment strings can entangle
your ngers or snag on the workpiece.
Additional Safety Warnings
• Maintain labels and nameplates. These carry im
-
portant information. If unreadable or missing, contact
a MILWAUKEE service facility for a free replacement.
4
ASSEMBLY
WARNING
Recharge only with the charger
specied for the battery. For specic charging instructions, read the operator’s
manual supplied with your charger and battery.
Removing/Inserting the Battery
To remove the battery, push in the release buttons and
pull the battery pack away from the tool.
WARNING
Always remove battery pack before
changing or removing accessories.
To insert the battery, slide the pack into the body of the
tool. Make sure it latches securely into place.
WARNING
To reduce the risk of injury, always
use a side handle when using this
tool. Hold securely.
Installing Side Handle
The side handle may be installed on either side of
the gear case. Position the side handle in the location which offers best control and guard protection.
To install, thread side handle into handle socket and
tighten securely.
Installing the Bail Handle
1. Remove battery pack.
2. Remove side handle.
3. Position the bail handle in the position (left or right
orientation) that offers best control.
4. Slide the handle around the front of the tool and up
onto the body of the tool.
5. Fit the handle into both handle sockets.
6. Select one of the three angle positions that offers
best control - forward, 90°, or back.
7. Insert the hex cap screws into each side of the bail
handle and tighten securely with the hex wrench
provided.
Installing/Removing/Cleaning
the Dust Screen
Using the dust screen will increase the performance
and extend the life of the tool.
CAUTION Do not use tool without dust screen in-
stalled.
1. To attach the dust screen, snap the screen over the
tool’s handle.
2. To remove the dust screen, insert a at screwdriver
into the notch at the top of the dust screen and pry
away from the tool.
3. To clean the dust screen, tap against a hard surface,
or blow clean with compressed air.
Using the Trigger Lock
The trigger can be locked off for storage and transport,
unlocked for use, or locked on for continuous use.
1. To LOCK OFF the trigger, press the trigger lock from
the locked side of the tool.
2. To UNLOCK the trigger, press the trigger lock from
the unlocked side of the tool.
3. To LOCK ON the trigger for continuous use, pull
the trigger and press in the trigger lock from the
unlocked side of the tool. Release the trigger.
To stop the tool, pull and release the trigger again.
Installing Polishing Pads/ Bonnets
1. To install, remove the battery pack and place the
tool on its tool rest with the spindle upright.
2. Press and hold the spindle lock button.
3. Thread the backing pad onto the spindle. Hand-
tighten securely.
4. Press the polishing pad/bonnet securely onto the
backing pad. Use a centering tool, if provided, to
ensure the pad is aligned for proper balance.
•
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 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.
FUNCTIONAL DESCRIPTION
3
8
9
5
10
11
1. Spindle lock button
2. Side handle
3. Tool rest
4. Speed control dial
5. Handle
6. Trigger
7. Trigger lock
8. Dust guard
9. Backing pad
10. Polishing pad
11. Bail handle
4
1
2
6
7
SYMBOLOGY
Volts
Direct Current
Rated Revolutions per Minute (RPM)
C
US
UL Listing Mark for Canada and the U.S
SPECIFICATIONS
Cat. No. ..................................................... 2738-20
Volts .............................................................. 18 DC
Battery Type .................................................M18™
Charger Type ................................................M18™
Rated RPM ................................................ 0 - 2200
Pad Diameter....................................................... 7"
Spindle Thread Size .................................... 5/8"-11
5
5. To uninstall, remove the battery pack and reverse
the procedure.
Polishing pad
Backing pad
Spindle
OPERATION
WARNING
To reduce the risk of injury, always
wear safety goggles or glasses with
side shields.
Starting, Stopping and Controlling Speed
Generally, lower speeds are recommended for tight
work areas and higher speeds are ideal for large
surface areas. Use the speed control dial to set the
maximum speed for the application.
1. Set the speed control dial to the desired maximum
speed.
2. Pull the trigger.
3. Increase or decrease pressure on the trigger to vary
the speed, up to the speed set on the dial.
4. Use the trigger lock to LOCK ON the tool for continu-
ous use, if desired.
5. To stop the tool, release the trigger.
Polishing
Always use side or bail handle for proper control. Move
the polisher back and forth in long, sweeping strokes.
Too much pressure, the wrong angle or improper mo-
tion may cause swirl marks or burning.
For detailed polishing instructions, read the instruc-
tions provided with the nishes, waxes and polishes.
Preventing Burning Through Paint
It is easy to burn through the paint on a surface. This
can occur if you polish at too high a speed or if you
allow the polishing pad to stay in one spot for even a
short period of time. To prevent burning through paint,
use very light pressure and keep the polisher moving
constantly, especially when working near edges or
where there are abrupt changes in the contour of the
work surface.
Be particularly careful when using higher RPM's which
are more likely to burn through paint.
WARNING
To reduce the risk of injury, follow
instructions for preventing snag-
ging. Snagging may cause the tool to kick back
and the operator to suddenly lose control of the
tool. Always use side handle to maintain control.
Preventing Snagging
Snagging occurs when polishing pads get caught on
rough edges of a work surface. Snagging can cause
the tool to suddenly "kick back" and it may cause the
pad to burn through the paint. To reduce the risk of
snagging, use the polisher at low speeds when polish-
ing rough surfaces. For tricky areas such as near trim
or between a mirror and window on a car, do not take
chances with a polisher. Polish these surfaces by hand.
MAINTENANCE
WARNING
To reduce the risk of injury, always
unplug the charger and remove the
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.
Maintaining Tool
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 affect 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 MIL-
WAUKEE service facility for repairs.
WARNING
To reduce the risk of personal injury and damage, never immerse
your tool, battery pack or charger in liquid or allow
a liquid to ow inside them.
Cleaning
Clean dust and debris from vents. Keep handles 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 detergents contain-
ing ammonia. Never use ammable or combustible
solvents around tools.
Repairs
For repairs, return the tool, battery pack and charger
to the nearest service center.
ACCESSORIES
WARNING
Use only recommended accesso-
ries. Others may be hazardous.
For a complete listing of accessories, go online to www.
milwaukeetool.com or contact a distributor.
SERVICE - UNITED STATES
1-800-SAWDUST (1.800.729.3878)
Monday-Friday, 7:00 AM - 6:30 PM CST
or visit www.milwaukeetool.com
Contact Corporate After Sales Service Technical
Support with technical, service/repair, or warranty
questions.
Email: metproductsupport@milwaukeetool.com
Become a Heavy Duty Club Member at
www.milwaukeetool.com to receive important
notications regarding your tool purchases.
SERVICE - CANADA
Milwaukee Tool (Canada) Ltd
1.800.268.4015
Monday-Friday, 7:00 AM - 4:30 PM CST
or visit www.milwaukeetool.ca
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