Operator's Manual

ManualsBrandsMilwaukee ManualsImpact DriversM18 FUEL™ ONE-KEY™ 1/4" HEX Impact Driver (Tool Only)

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 impacting time.

Oil, dirt, rust or other matter on the threads or under the

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

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

ONE-KEY™

WARNING

Chemical Burn Hazard.

This device contains a

lithium button/coin cell battery. A new

or used battery can cause severe in-

ternal burns and lead to death in as

little as 2 hours if swallowed or enters the body.

Always secure the battery cover. If it does not

close securely, stop using the device, remove the

batteries, and keep it away from children. If you

think batteries may have been swallowed or en-

tered the body, seek immediate medical attention.

Internal Battery

An internal battery is used to facilitate full ONE-KEY™

functionality.

To replace the battery:

1. Remove the battery pack.

2. Remove the screw(s) and open the battery door.

3. Remove the old battery, keep it away from children,

and dispose of it properly.

4. Insert the new battery (3V CR2032), with the posi-

tive side facing up.

5. Close the battery door and tighten the screw

securely.

WARNING

To reduce the risk of personal in-

jury and damage, never immerse

your tool, battery pack or charger in liquid or

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 clean-

ing 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-

combustible solvents around tools.

Repairs

For repairs, return the tool, battery pack and charger

to the nearest service centre.

ACCESSORIES

WARNING

Use only recommended accesso-

ries. Others may be hazardous.

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 MILWAUKEE

service facility for repairs.

For a complete listing of accessories, go online to