Starting, Stopping and Controlling Speed
(9072-20, 9072-22, 9092-20, and 9096-20)
This impact wrench may be operated at any speed
from 0 to full speed. The speed will remain variable
up to the chosen speed dial setting by use of the trig-
ger. The speed dial turns clockwise to increase the
speed or counterclockwise to decrease the speed.
1. Select a speed on the speed
dial.
2. To start the tool, pull the trig-
ger.
3. To vary the driving speed, in-
crease or decrease pressure
on the trigger. The further the
trigger is pulled, the greater
the speed.
4. To stop the tool, release the trigger.
Starting and Stopping the Tool
(9070-20, 9071-20, 9075-20)
These impact wrenches are equipped with a rocker
switch that offers both forward and reverse rotation.
1. For forward (clockwise) rotation,
pull the lower portion of the
switch.
2. For reverse (counterclockwise)
rotation, pull the upper portion of
the switch.
NOTE: To prevent damage to the
motor and internal mechanism,
allow the motor to stop completely
before switching from forward to reverse or from
reverse to forward.
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.
Impacting for two seconds is generally sufficient for
a 3/8" bolt and one second for a 5/16" bolt. How-
ever, 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. However, if
rust or corrosion causes seizing, more torque may
be required.
On light gasket jobs, run each fastener down to a
relatively light torque and use a hand torque wrench
for final tightening.
Trigger
Speed
dial
To increase the speed
MAINTENANCE
To reduce the risk of injury, always
WARNING
unplug the tool before performing
any maintenance. Never disassemble the tool.
Contact a MILWAUKEE service facility for ALL
repairs.
Maintaining Tools
Keep your tool 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 condi-
tion that may affect the tool operation. Return the tool
to a MILWAUKEE service facility for repair. After six
months to one year, depending on use, return the
tool to a MILWAUKEE service facility for inspection.
To reduce the risk of personal in-
WARNING
jury, electric shock and damage,
never immerse your tool in liquid or allow a liquid
to flow inside it.
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-
gents containing ammonia. Never use flammable or
combustible solvents around tools.
For repairs, return the tool to the nearest service
center.
ACCESSORIES
Use only recommended accesso-
WARNING
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
Monday-Friday, 7:00 AM - 6:30 PM CST
www.milwaukeetool.com
or visit
Contact Corporate After Sales Service Technical
Support with technical, service/repair, or warranty
questions.
Email: metproductsupport@milwaukeetool.com
B e c o m e a H e a v y D u t y C l u b M e m b e r a t
www.milwaukeetool.com to receive important
notifications 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
6
Cleaning
Repairs
(1.800.729.3878)