OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
Cat. No. / No de cat.
2551-20
M12 FUEL™ SURGE™ 1/4" HEX HYDRAULIC DRIVER
TOURNEVIS HYRDRAULIQUE À TÊTE HEXAGONALE SURGE™
M12 FUEL™ DE 6 mm (1/4")
DESTORNILLADOR HIDRÁULICO HEXAGONAL SURGE™
M12 FUEL™ DE 6 mm (1/4")
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.
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
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 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 ac-
cidents 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
2
to another. Shorting the battery terminals together
WARNING
WARNING
C
US
WARNING
WARNING
WARNING
may cause burns or a re.
• Under abusive conditions, liquid may be ejected
from the battery; avoid contact. If contact accidentally occurs, flush 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
excessive temperature. Exposure to re or tem-
perature 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
improperly 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 IMPACT DRIVERS
• Hold power tool by insulated gripping surfaces,
when performing an operation where the fastener may contact hidden wiring. Fasteners con-
tacting a “live” wire may make exposed metal parts
of the power tool “live” and could give the operator
an electric shock.
• Wear ear protectors when impact drilling. Expo-
sure to noise can cause hearing loss.
• Use only sockets and other accessories spe-
cically designed for use on impact wrenches
and drivers. Other sockets and accessories might
shatter or break causing injury.
•
erable 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.
To reduce the risk of injury in applications that produce a consid-
Some dust created by power sanding,
sawing, grinding, drilling, and other
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
1
8
7
6
2
3
4
5
1. Hex drive chuck
2. 4-Mode drive
control
3. Belt hook
4. Fuel gauge
5. Control switch
6. Handle
7. Trigger
8. LED
SYMBOLOGY
Volts
Direct Current
No Load Revolutions per Minute (RPM)
Impacts per Minute Under Load (IPM)
UL Listing for Canada and U.S.
SPECIFICATIONS
Cat. No. ..................................................... 2551-20
Volts.............................................................. 12 DC
Battery Type .................................................M12™
Charger Type................................................M12™
Recommended Ambient
Operating Temperature ......................0°F to 125°F
RPM .......................................................... 0 - 3 200
IPM ........................................................... 0 - 3 400
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.
To insert the battery, slide the pack into the body
of the tool. Make sure it latches securely into place.
may be hazardous.
3
specied for the battery. For spe-
Removing/Inserting the Battery
Always remove battery pack before
changing or removing accessories.
Only use accessories specically
recommended for this tool. Others
WARNING
WARNING
Attaching and Removing
WARNING
Accessories
This driver is intended for use with drill
and driver bits with a 1/4" hex shank
and ball detent recess.
1. To attach an accessory, press the
shank into the hex drive chuck.
2. To remove the accessory, pull out
the chuck ring and remove the ac-
cessory. Release the ring.
OPERATION
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 bat-
tery, pull the trigger. The Fuel Gauge will light up for
2-3 seconds.
To signal the end of charge, 1 light on the fuel gauge
will ash for 2-3 seconds.
The drive control button
is used to adjust the
rotation speed (RPM)
for the application.
To select the drive
control mode:
1. Pull and release the
trigger to turn on the
tool. The current indicator is lit.
2. Press the drive control button
the 4 modes. When the desired mode indicator is
lit, begin work.
Mode 1 2 3
RPM 0 - 1 100 0 - 2 200 0 - 3 200
IPM 0 - 950 0 - 2 200 0 - 3 400
The function is designed to reduce screw stripping, screw breakage, and damage to the work sur-
face when driving self-tapping screws. This function
is optimized for the most common materials, including
#8, #10 and #12 self-tapping screws between 1/2"-1"
in length and 18-22 gauge sheet metal.
NOTE: mode will only run if the trigger is pulled
more than half-way. If pulled less than half-way, the
driver will run in the normal impacting mode. When
using the mode, the tool will shut o automatically
once the screw is fully seated.
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.
wear proper eye protection marked
Fuel Gauge
Using the Drive Control
Drive Control Button
Tapping Screw Mode
to cycle through
Designed for
driving
self-tapping
screws
in sheet metal
Using the Control Switch
Speed
Indicator
Push for
Forward
PUSH TO CENTER TO LOCK
1. For forward (clockwise) rotation, push the control
switch in the direction shown. Check the direction
of rotation before use.
2. For reverse (counterclockwise) rotation, push the
control switch in the direction shown. Check the
direction of rotation before use.
3. 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 remove the battery pack before performing
maintenance or changing accessories. Always
lock the trigger or remove the battery pack before
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.
2. To vary the driving speed, 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.
To protect the battery from damage and extend its
life, the tool’s intelligent circuit monitors current draw,
temperature, and voltage drops.
In extremely high torque, binding, stalling, and short
circuit situations that cause high current draw, the
fuel gauge will ash, and then the tool will turn OFF.
To reset, release the trigger.
Under extreme circumstances, the internal tem-
perature of the battery could become too high. If this
happens, the fuel gauge will ash and the battery
pack will shut o. Let the battery pack cool and then
continue work.
To reduce the risk of injury, always
hold or brace securely.
Battery Pack Protection
Push for
Reverse
APPLICATIONS
To reduce the risk of electric shock,
and wires before drilling or driving screws.
The longer a bolt, screw, or nut is impacted, the
tighter it will become. To help prevent damaging the
fasteners or workpieces, avoid excessive impact-
ing. 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 aects 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.
4
check work area for hidden pipes
Impacting Techniques
On light gasket jobs, run each fastener down to a
WARNING
WARNING
WARNING
relatively light torque and use a hand torque wrench
for nal tightening.
MAINTENANCE
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.
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.
Maintaining Tool
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.
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 deter-
gents containing ammonia. Never use ammable or
combustible solvents around tools.
For repairs, return the tool, battery pack and charger
to the nearest service center.
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.
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
LIMITED WARRANTY
Every MILWAUKEE power tool* (see exceptions below) 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 workman-
ship for a period of 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.
Normal Wear: Many power tools need periodic parts replacement and
service to achieve best performance. This warranty does not cover
repair when normal use has exhausted the life of a part including,
but not limited to, chucks, brushes, cords, saw shoes, blade clamps,
o-rings, seals, bumpers, driver blades, pistons, strikers, lifters, and
bumper cover washers.
*This warranty does not cover Air Nailers & Staplers; Airless Paint
Sprayer; Cordless Battery Packs; Gasoline Driven Portable Power
Generators; Hand Tools; Hoist – Electric, Lever & Hand Chain;
M12™ Heated Gear; Reconditioned Product; and Test & Measure-
ment Products. There are separate and distinct warranties available
for these products.
**The warranty period for Job Site Radios, M12™ Power Port, M18™
Power Source, Jobsite Fan and Trade Titan™ Industrial Work Carts
is one (1) year from the date of purchase. The warranty period for the
Drain Cleaning Cables is two (2) years from the date of purchase. The
warranty period for the M18™ Compact Heat Gun and the 8 Gallon
Dust Extractor is three (3) years from the date of purchase. The warranty period for the LED in the LED Work Light and the LED Upgrade
Bulb for the Work Light is the lifetime of the product subject to the
limitations above. If during normal use the LED or LED Bulb fails, the
part will be replaced free of charge.
Warranty Registration is not necessary to obtain the applicable war-
ranty 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 REPAIR AND REPLACEMENT
REMEDIES DESCRIBED HEREIN IS A CONDITION OF THE CON-
TRACT FOR THE PURCHASE OF EVERY MILWAUKEE PRODUCT.
IF YOU DO NOT AGREE TO 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 DELAYS 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 TO YOU. THIS WARRANTY IS EXCLUSIVE AND IN LIEU
OF ALL OTHER EXPRESS WARRANTIES, WRITTEN OR ORAL.
TO THE EXTENT PERMITTED BY LAW, MILWAUKEE DISCLAIMS
ANY IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION
ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE OR PURPOSE; TO THE EXTENT SUCH
DISCLAIMER IS NOT PERMITTED BY LAW, 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 sec-
tion of MILWAUKEE’s website www.milwaukeetool.com or call 1.800.
SAWDUST (1.800.729.3878) to locate your nearest service facility for
warranty and non-warranty service on a Milwaukee electric power tool.
USA & CANADA
5
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