Milwaukee Fuel M18CHIWF12 User manual

Cat. No.
M18™ FUEL™ 7/16" HEX IMPACT DRIVER, 1/2" IMPACT WRENCHES
& 3/4" IMPACT WRENCH
OPERATOR'S MANUAL
TO REDUCE THE RISK OF INJURY, USER MUST READ AND UNDERSTAND OPERATOR'S MANUAL.
M18CHIWP12
M18CHIWF12
M18CHIWF34
M18CHIDH716

2
PERSONAL SAFETY
GENERAL POWER TOOL SAFETY WARNINGS
WORK AREA SAFETY
ELECTRICAL SAFETY
.HHSZRUNDUHDFOHDQDQGZHOOOLW Cluttered or
dark areas invite accidents.
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sparks which may ignite the dust or fumes.
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RSHUDWLQJDSRZHUWRRO Distractions can cause
you to lose control.
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reduce risk of electric shock.
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UHIULJHUDWRUVThere is an increased risk of electric
shock if your body is earthed or grounded.
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the risk of electric shock.
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RUPRYLQJSDUWVDamaged or entangled cords
increase the risk of electric shock.
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of a cord suitable for outdoor use reduces the risk
of electric shock.
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the risk of electric shock.
attached to a rotating part of the power tool may
result in personal injury.
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of the power tool in unexpected situations.
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lery or long hair can be caught in moving parts.
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dust collection can reduce dust-related hazards.
WARNING READ ALL SAFETY WARNINGS AND ALL INSTRUCTIONS.
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VHULRXVLQMXU\Save all warnings and instructions for future reference.
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POWER TOOL USE AND CARE
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SRZHU WRRO IRU \RXU DSSOLFDWLRQ The correct
power tool will do the job better and safer at the
rate for which it was designed.
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WXUQLWRQDQGRII Any power tool that cannot be
controlled with the switch is dangerous and must
be repaired.
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DFFHVVRULHV RU VWRULQJ SRZHU WRROV Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
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WKHSRZHUWRROPower tools are dangerous in the
hands of untrained users.
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SRZHUWRROUHSDLUHGEHIRUHXVHMany accidents
are caused by poorly maintained power tools.
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maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
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WKHZRUNWREHSHUIRUPHGUse of the power tool
for operations different from those intended could
result in a hazardous situation.
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WKHLQÀXHQFHRIGUXJVDOFRKRORUPHGLFDWLRQA
moment of inattention while operating power tools
may result in serious personal injury.
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ZHDUH\HSURWHFWLRQ Protective equipment such
as dust mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate conditions
will reduce personal injuries.
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VZLWFKLVLQWKHRIISRVLWLRQEHIRUHFRQQHFWLQJ
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XSRUFDUU\LQJWKHWRROCarrying power tools with
\RXU¿QJHURQWKHVZLWFKRUHQHUJLVLQJSRZHUWRROV
that have the switch on invites accidents.
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WXUQLQJWKHSRZHUWRRORQA wrench or a key left
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WKHPDQXIDFWXUHUA charger that is suitable for
RQHW\SHRIEDWWHU\SDFNPD\FUHDWHDULVNRI¿UH
when used with another battery pack.
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BATTERY TOOL USE AND CARE

3
SPECIFIC SAFETY RULES
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WHUPLQDO WR DQRWKHU. Shorting the battery termi-
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Liquid ejected from the battery may cause irritation
or burns.
SERVICE
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UHpaiUpHUVRQ usLQg RQO\ LGHQtical UHplDFHPHQt
pDUWV. This will ensure that the safety of the power
tool is maintained.
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ZKHQ pHUIRUPLQg aQRSHUDWLRQ ZKHUH tKH fas-
WHQHU ma\FRQtact KiGGHQ wiULQJ. Fasteners
contacting a “live” wire may make exposed metal
parts of the power tool “live” and could give the
operator an electric shock.
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Exposure to noise can cause hearing loss.
8VH RQO\ VRFNHWV DQG RWKHU DFFHVVRULHV VSH-
GHVLJQHG IRU XVH RQ impact ZUHQFKHV
aQG GUiYHUV. Other sockets and accessories might
shatter or break causing injury.
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RPM IPM
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18
18
18
18
1/2" Square-Pin
1/2" Square-Ring
3/4" Square-Ring
7/16" Hex
1
2
1
2
1
2
1
2
0 - 1200
0 - 1700
0 - 425
0 - 1700
0 - 1200
0 - 1700
0 - 1200
0 - 1700
1
2
1
2
1
2
1
2
1700
2300
450
2300
1700
2300
1700
2300
FUNCTIONAL DESCRIPTION
SPECIFICATIONS
0DLQWDLQ ODEHOV DQG QDPHSODWHV These carry
important information. If unreadable or missing,
:ARNING: 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 spe-
SYMBOLOGY
Volts
Direct Current
Impacts per Minute Under
Load (IPM)
No Load Revolutions per
Minute (RPM)
1. 1/2" Square drive anvil with pin
(M18CHIWP12)
2. LED
3. Control switch
4. Trigger
5. 2-Mode drive control
6. 1/2" Square drive anvil with ring (M18CHIWF12)
7. 3/4" Square drive anvil with ring (M18CHIWF34)
8. 7/16" Hex Quick Connect (M18CHIDH716)
1
2
45
3
6
7
contact your local authorised
dealer or service centUH.
MILWAUKEE®
8

4
Attaching and Removing Accessories
1/2" Impact Wrench with Pin
(Cat. No. M18CHIWP12)
1. Use only the appropriate size Square Drive
Sockets.
2. To attach a socket, align the hole in the acces-
sory with the detent pin on the anvil. Hold the
detent pin in while pushing the socket onto the
anvil. The detent pin will snap into place in the
hole to secure the socket.
3. To remove the socket, insert a nail or other thin
object into the hole in the accessory and press
in the detent pin. Pull the accessory off the anvil.
1/2" and 3/4" Impact Wrench with Ring
(Cat. No. M18CHIWF12, M18CHIWF34)
1. Use only the appropriate size Square Drive
Sockets.
2. To attach a socket, align the accessory with the
3. To remove the accessory, pull the accessory
off the anvil.
7/16" Hex Impact Driver
(Cat. No. M18CHIDH716)
This impact driver is intended for
use with drill and driver bits.
1. To attach an accessory, press
the shank into the hex drive
chuck.
2. To remove the accessory, pull
out the ring and remove the ac-
cessory. Release the ring.
ASSEMBLY
WARNING Recharge only with the
charger for the battery. For
charging instructions, read the operator’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 Use only sockets and other
accessories designed for use on
impact wrenches and drivers. Other sockets
and accessories might shatter or break caus-
ing injury.
WARNING Always remove battery
pack before changing or removing acces-
sories. Only use accessories specifically
recommended for this tool. Others may be
hazardous.
Using the Drive Control
The drive control button is used to adjust the torque,
rotation speed (RPM), and impact speed (IPM) for
the application (see chart for RPM
and IPM).
To select the drive control mode:
1. Pull and release the trigger to turn on the tool.
The current mode indicator is lit.
2. Press the drive control button to cycle through
the 2 modes. When the desired mode indicator
is lit, begin work.
Push for
Forward
Push for
Reverse
PUSH TO CENT5( TO LOCK
OPERATION
WARNING Always remove battery
pack before changing or removing acces-
sories. Only use accessories specifically
recommended for this tool. Others may be
hazardous.
WARNING To reduce the risk of injury,
wear safety goggles or glasses with side
shields.
12
Mode
Indicator
Drive Control Button
Using the Control Switch
The control switch may be set to three positions:
forward, reverse and lock. Due to a lockout mecha-
nism, 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.
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
centUH position. The trigger will not work when
the control switch is in the locked position.
Always remove the battery pack before perform-
ing maintenance, changing accessories, storing
the tool and any time the tool is not in use.
Mode
Indicator

5
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.
Impacting Techniques
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 impact-
ing 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
WARNING Always remove battery pack
before changing or removing accessories.
Only use accessories spe recommend-
ed for this tool. Others may be hazardous.
ACCESSORIES
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
your local authorised dealer or
Lubrication
Mechanical inspection and cleaning (gears, spin-
dles, 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 your local authorised dealer or
Cleaning
Clean dust and debris from charger and tool vents.
Keep tool handles clean, dry and free of oil or
grease. 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 house-
hold detergents containing ammonia. Never use
Repairs
For repairs, return the tool, battery pack and
charger to the nearest service centUe.
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 inside them.
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 disas-
semble the tool, battery pack or charger.
Contact your local authorised
MAINTENANCE
dealer or service centUH for all repairs.
For a complete listing of accessories refer to your
accessories catalogue or go
online to www.milwaukeetools.com.au or
www.milwaukeetools.co.nz. To obtain a product
catalogue, please contact your local authorised
dealer or service centUH.
service centUH for:
service centUH for repairs.
MILWAUKEE®
MILWAUKEE®
MILWAUKEE®
MILWAUKEE®
MILWAUKEE®


WARRANTY - AUSTRALIA and NEW ZEALAND
Please refer to the Techtronic Industries Pty. Ltd. Warranty Terms and Conditions for
MILWAUKEE®products and accessories document supplied with tool. This warranty applies only
to product purchased from an authorised MILWAUKEE®dealer in Australia or New Zealand.
AUSTRALIA AND NEW ZEALAND
MILWAUKEE®Service
MILWAUKEE®prides itself in producing a premium quality product that is Nothing But Heavy
Duty®. Your satisfaction with our products is very important to us! If you encounter any problems
with the operation of this tool, please contact your authorised MILWAUKEE®dealer or service
centUH.

Printed in China
61012046$
Milwaukee Electric Tool Corporation
13135 West Lisbon Road, Brookfield, Wisconsin U.S.A. 53005
Milwaukee Electric Tool Corporation (Australia)
Techtronic Industries (Australia) Pty. Ltd.
Rowville, Victoria, Australia, 3178
Milwaukee Electric Tool Corporation (New Zealand)
Techtronic Industries (New Zealand) Pty. Ltd.
Mangere, Auckland, New Zealand, 2022
Professionally made in China for Milwaukee Electric Tool Corporation