Milwaukee 2450-20, 2451-20 User Manual
Cat. No.
No de cat.
2450-20
2451-20
OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
M12™ CORDLESS IMPACT WRENCH AND IMPACT DRIVER
CLÉS À CHOCS ET VISSEUSE M12™
LLAVES DE IMPACTO E IMPULSOR DE IMPACTO DE M12™
TO REDUCE THE RISK OF INJURY, USER MUST READ AND UNDERSTAND OPERATOR'S
MANUAL.
AFIN DE RÉDUIRE LE RISQUE DE BLESSURES, L'UTILISATEUR DOIT LIRE ET BIEN
COMPRENDRE LE MANUEL DE L'UTILISATEUR.
PARA REDUCIR EL RIESGO DE LESIONES, EL USUARIO DEBE LEER Y ENTENDER EL
MANUAL DEL OPERADOR.
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, fi 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-operated (cordless) power tool.
• Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
• Do not operate power tools in explosive atmospheres, such as in the presence of fl 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
WORK AREA 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. Unmodifi ed 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
extension 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 residual current device
(RCD) protected supply. Use of an RCD 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 infl uence 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 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 fi nger on the switch or energising 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
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewel-
lery 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.
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 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 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
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 different from those intended could
result in a hazardous situation.
BA TTER Y T OOL USE AND CARE
• Recharge only with the charger specifi ed by
the manufacturer. A charger that is suitable for
one type of battery pack may create a risk of fi re
when used with another battery pack.
• Use power tools only with specifi cally desig-
nated battery packs. Use of any other battery
packs may create a risk of injury and fi re.
2
• 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 termi-
nals together may cause burns or a fi re.
• Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact
accidentally occurs, fl ush with water. If liquid
contacts eyes, additionally seek medical help.
Liquid ejected from the battery may cause irritation
or burns.
SERVICE
• Have your power tool serviced by a qualifi ed
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
SPECIFIC SAFETY RULES
• Hold power tool by insulated gripping sur-
faces, when performing an operation where the
fastener may contact hidden wiring or its own
cord. Fasteners contacting with a “live” wire may
make exposed metal parts of the power tool “live”
and could give the operator an electric shock.
• Wear ear protectors with impact drills. Expo-
sure to noise can cause hearing loss.
• Use only sockets and other accessories spe-
cifi cally designed for use on impact wrenches
and drivers. Other sockets and accessories might
shatter or break causing injury.
• Maintain labels and nameplates. These carry
important information. If unreadable or missing,
contact a MILWAUKEE service facility for a free
replacement.
• 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.
Y our 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 fi lter out microscopic particles.
SYMBOLOGY
Direct Current
Impacts per Minute Under Load
(IPM)
No Load Revolutions per Minute
(RPM)
Underwriters Laboratories, Inc.
United States and Canada
FUNCTIONAL DESCRIPTION
4
3
1. Trigger
2. Control switch
3. LED
4. Drive Shank
5. Fuel Gauge
2
1
SPECIFICATIONS
Cat. No.
2450-20
2451-201212
Volts
DC
RPM
0-2 000
0-2 000
Drive
Shank
1/4" Hex
3/8” Square
IPM
0-3 000
0-3 000
ASSEMBLY
WARNING Recharge only with the
charger specifi ed for the battery. For
specifi c charging instructions, read the opera-
tor’s manual supplied with your charger and
battery.
Inserting/Removing the Battery
To remove the battery, push in the release buttons
and pull the battery pack away from the tool.
To insert the battery, slide the pack into the body of
the tool. Make sure it latches securely into place.
WARNING Always remove battery
pack before changing or removing accessories. Only use accessories specifi cally
recommended for this tool. Others may be
hazardous.
WARNING Use only sockets and other
accessories specifi cally designed for
use on impact wrenches and drivers. Other
sockets and accessories might shatter or
break causing injury.
Attaching and Removing Accessories
These tools are intended only for use with accessories designed for impact wrenches and drivers.
Other sockets could shatter or break, causing injury.
Cat. No. 2450-20
1. To attach an accessory, pull the ring
out and insert the accessory shank.
Release the ring. It may be necessary
to pull the bit out slightly to engage the
holding mechanism.
2. To remove the accessory, pull out
the ring and remove the accessory.
Release the ring.
3
5
Cat. No. 2451-20
1. Use only 3/8” Square Drive Sockets.
2. To attach a socket, align the accessory with the
drive shank and push it fi rmly over the retaining
ring.
3. T o remove the accessory, pull the accessory off
the drive shank.
OPERATION
WARNING Always remove battery
pack before changing or removing accessories. Only use accessories specifi cally
recommended for this tool. Others may be
hazardous.
WARNING T o reduce the risk of injury ,
wear safety goggles or glasses with side
shields.
Fuel Gauge
To determine the amount of charge left in the battery, pull the trigger. The Fuel Gauge will light up
for 2-3 seconds.
T o signal the end of charge, 1 light on the fuel gauge
will fl ash for 2-3 seconds.
Using Control Switch
The control switch may be set to three positions:
forward, reverse and lock. Due to a lockout mechanism, the control switch can only be adjusted when
the ON/OFF switch is not pressed. Always allow
the motor to come to a complete stop before using
the control switch.
Fig. 3
Push for
Forward
PUSH TO CENTER TO LOCK
For forward (clockwise) rotation, push the control
switch in the direction shown. Check the direction
of rotation before use.
For reverse (counterclockwise) rotation, push the
control switch in the direction shown. Check the
direction of rotation before use.
To lock the trigger, push the control switch to the
center position. The trigger will not work when the
control switch is in the locked position.
Always lock the trigger or remove the battery
pack before performing maintenance, changing
accessories, storing the tool and any time the tool
is not in use.
Starting, Stopping and Controlling Speed
These tools may be operated at any speed from
0 to full speed.
1. To start the tool, pull the trigger . NOTE: An LED
is turned on when the trigger is pulled.
Push for
Reverse
2. To vary the driving speed, simply increase or
decrease pressure on the trigger. The further
the trigger is pulled, the greater the speed.
3. To stop the tool, release the trigger.
Impacting Techniques
The longer a bolt, screw, or nut is impacted, the
tighter it will become. T o help prevent damaging the
fasteners or workpieces, avoid excessive impacting. Be particularly careful when impacting smaller
fasteners because they require less impacting to
reach optimum torque.
Practice with various fasteners, noting the length
of time required to reach the desired torque. Check
the tightness with a hand-torque wrench. If the
fasteners are too tight, reduce the impacting time.
If they are not tight enough, increase the impacting time.
Oil, dirt, rust or other matter on the threads or
under the head of the fastener affects the degree
of tightness.
The torque required to loosen a fastener averages
75% to 80% of the tightening torque, depending on
the condition of the contacting surfaces.
On light gasket jobs, run each fastener down to a
relatively light torque and use a hand torque wrench
for fi nal tightening.
MAINTENANCE
WARNING T o 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.
After six months to one year, depending on use,
return the tool, battery pack and charger to a
MILWAUKEE service facility for:
• Lubrication
• Mechanical inspection and cleaning (gears,
spindles, bearings, housing, etc.)
• Electrical inspection (battery pack, charger,
motor)
• Testing to assure proper mechanical and
electrical operation
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.
WARNING To reduce the risk of per-
sonal injury and damage, never immerse your
tool, battery pack or charger in liquid or allow
a liquid to fl ow inside them.
Cleaning
Clean dust and debris from charger and tool vents.
Keep tool handles clean, dry and free of oil or grease.
4
Use only mild soap and a damp cloth to clean the
tool, battery pack and charger 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 containing ammonia. Never use fl ammable or
combustible solvents around tools.
Repairs
For repairs, return the tool, battery pack and charger to the nearest service center.
pack before changing or removing accessories. Only use accessories specifi cally
recommended for this tool. Others may be
hazardous.
For a complete listing of accessories refer to your
MILWAUKEE Electric Tool catalog or go online
to www.milwaukeetool.com. To obtain a catalog,
contact your local distributor or service center.
ACCESSORIES
WARNING Always remove battery
LIMITED WARRANTY - USA AND CANADA
Every MILWAUKEE power tool (including cordless product – tool, battery pack(s) - see separate & distinct CORDLESS BA TTERY PACK LIMITED
WARRANTY statements & battery charger and Work Lights*) is warranted to the original purchaser only to be free from defects in material and
workmanship. Subject to certain exceptions, MILWAUKEE will repair or replace any part on an electric power tool which, after examination, is
determined by MILWAUKEE to be defective in material or workmanship for a period of fi ve (5) years* after the date of purchase unless otherwise
noted. Return of the power tool to a MILWAUKEE factory Service Center location or MILWAUKEE Authorized Service Station, freight prepaid and
insured, is required. A copy of the proof of purchase should be included with the return product. This warranty does not apply to damage that
MILWAUKEE determines to be from repairs made or attempted by anyone other than MILWAUKEE authorized personnel, misuse, alterations,
abuse, normal wear and tear, lack of maintenance, or accidents.
*The warranty period for, Job Site Radios, M12™ Power Port and Trade T itan™ Industrial Work Carts is one (1) year from the date of purchase.
The warranty period for a LED Work Light and LEDUpgrade Bulb is a limited LIFETIME warranty to the original purchaser only, if during normal
use the LED bulb fails the Work Light or Upgrade Bulb will be replaced free of charge.
*This warranty does not cover Air Nailers & Stapler, Airless Paint Sprayer, Cordless Battery Packs, Gasoline Driven Portable Power Generators,
Hand Tools, Hoist – Electric, Lever & Hand Chain, M12™ Heated Jackets, Reconditioned product and Test & Measurement products. There
are separate and distinct warranties available for these products.
Warranty Registration is not necessary to obtain the applicable warranty on a MILWAUKEE power tool product. The manufacturing date of the
product will be used to determine the warranty period if no proof of purchase is provided at the time warranty service is requested.
ACCEPTANCE OF THE EXCLUSIVE REP AIR AND REPLACEMENT REMEDIES DESCRIBED HEREIN IS A CONDITION OF THE CONTRACT
FOR THE PURCHASE OF EVERY MILWAUKEE PRODUCT . IF YOU DO NOT AGREE T O THIS CONDITION, YOU SHOULD NOT PURCHASE
THE PRODUCT. IN NO EVENT SHALL MILWAUKEE BE LIABLE FOR ANY INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE
DAMAGES, OR FOR ANY COSTS, ATTORNEY FEES, EXPENSES, LOSSES OR DELA YS ALLEGED TO BE AS A CONSEQUENCE OF ANY
DAMAGE TO, FAILURE OF, OR DEFECT IN ANY PRODUCT INCLUDING, BUT NOT LIMITED TO, ANY CLAIMS FOR LOSS OF PROFITS.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE
LIMITATION OR EXCLUSION MAY NOT APPLY T O YOU. THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS WARRANTIES, WRITTEN OR ORAL. TO THE EXTENT PERMITTED BY LA W, MILWAUKEE DISCLAIMS ANY IMPLIED WARRANTIES, INCLUD-
ING WITHOUT LIMITATION ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE;
TO THE EXTENT SUCH DISCLAIMER IS NOT PERMITTED BY LA W, SUCH IMPLIED WARRANTIES ARE LIMITED TO THE DURATION OF
THE APPLICABLE EXPRESS WARRANTY AS DESCRIBED ABOVE. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN
IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU, THIS WARRANTY GIVES YOU SPECIFIC LEGAL
RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.
This warranty applies to product sold in the U.S.A. and Canada only.
Please consult the ‘Service Center Search’ in the Parts & Service section of MILWAUKEE’s website www.milwaukeetool.com or call
1.800.SAWDUST (1.800.729.3878) to locate your nearest MILWAUKEE factory Service Center location.
LIMITED WARRANTY - MEXICO, CENTRAL AMERICA AND CARIBBEAN
TECHTRONIC INDUSTRIES' warranty is for 5 year since the original purchase date.
This warranty card covers any defect in material and workmanship on this Power Tool.
To make this warranty valid, present this warranty card, sealed/stamped by the distributor or store where you purchased the product, to the
Authorized Service Center (ASC). Or, if this card has not been sealed/stamped, present the original proof of purchase to the ASC.
Call toll-free 1 800 832 1949 to fi nd the nearest ASC, for service, parts, accessories or components.
Procedure to make this warranty valid
Take the product to the ASC, along with the warranty card sealed/stamped by the distributor or store where you purchased the product, and
there any faulty piece or component will be replaced without cost for you. We will cover all freight costs relative with this warranty process.
Exceptions
This warranty is not valid in the following situations:
a) When the product is used in a different manners from the end-user guide or instruction manual.
b) When the conditions of use are not normal.
c) When the product was modifi ed or repaired by people not authorized by TECHTRONIC INDUSTRIES.
Note: If cord set is damaged, it should be replaced by an Authorized Service Center to avoid electric risks.
SERVICE AND ATTENTION CENTER
Model:
Rafael Buelna No.1.
Col. Tezozomoc Mexico, Azcapotzalco D.F.
Date of Purchase:
Ph. 01 800 832 1949
Distributor or Store Stamp:
IMPORTED AND COMMERCIALIZED BY:
TECHTRONIC INDUSTRIES MEXICO, .S.A. DE C.V.
Av. Santa Fe 481 piso 6, Col. Curz Manca.
CP 05349, Cuajimalpa, D.F.
5
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