Save This ManualKeep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference. 19a
Unapproved safety equipment may not provide
adequate protection. Eye protection must be
ANSI-approved and breathing protection
must be NIOSH-approved for the
specific hazards in the work area.
4. E$&(*%"97*%/&)*(%$&&7#%&'$%&2%$.*%(*,4.%&2%
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)"$.%$.*%/&)*(%$&&7%&(%$.*#*%"8#$('4$"&8#%
$&%&/*(,$*%$.*%/&)*(%$&&71 Power tools are
dangerous in the hands of untrained users.
5. N,"8$,"8%/&)*(%$&&7#1%%O.*4X%2&(%5"#,7"385*8$%
&(%+"89"83%&2%5&W"83%/,($#=%+(*,X,3*%&2%/,($#%
,89%,8V%&$.*(%4&89"$"&8%$.,$%5,V%,22*4$%$.*%
/&)*(%$&&7^#%&/*(,$"&81%%L2%9,5,3*9=%.,W*%$.*%
/&)*(%$&&7%(*/,"(*9%+*2&(*%'#*1 Many accidents
are caused by poorly maintained power tools.
6. P#*%$.*%/&)*(%$&&7=%,44*##&("*#%,89%$&&7%+"$#%
*$41%"8%,44&(9,84*%)"$.%$.*#*%"8#$('4$"&8#=%
$,X"83%"8$&%,44&'8$%$.*%)&(X"83%4&89"$"&8#%
,89%$.*%)&(X%$&%+*%/*(2&(5*91 Use of the
Contact with a ″live″ wire will make exposed metal
parts of the tool ″live″ and shock the operator.
2. The amount of actual torque may vary depending
on the cleanness and condition of the threads and
other factors. If tightening critical components,
check the actual torque applied to the fastener
with a mechanical torque wrench (not supplied).
3. Maintain labels and nameplates on the tool.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
4. Avoid unintentional starting.
Prepare to begin work before turning on the tool.
5. Do not lay the tool down until it has come to
a complete stop. Moving parts can grab the
surface and pull the tool out of your control.
6. When using a handheld power tool,
maintain a firm grip on the tool with both
hands to resist starting torque.
7. Do not leave the tool unattended when it is plugged
into an electrical outlet. Turn off the tool, and
unplug it from its electrical outlet before leaving.
8. This product is not a toy.
Keep it out of reach of children.
9. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in
close proximity to heart pacemaker could cause
pacemaker interference or pacemaker failure. In
addition, people with pacemakers should:
• Avoid operating alone.
• Do not use with power switch locked on.
• Properly maintain and inspect to avoid
electrical shock.
• Properly ground power cord. Ground Fault Circuit
Interrupter (GFCI) should also be implemented
– it prevents sustained electrical shock.
10. The warnings, precautions, and instructions
discussed in this instruction manual cannot
cover all possible conditions and situations
that may occur. It must be understood by the
operator that common sense and caution are
factors which cannot be built into this product,
but must be supplied by the operator.
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This tool vibrates during use.
Repeated or long-term exposure to vibration may
cause temporary or permanent physical injury,
particularly to the hands, arms and shoulders.
To reduce the risk of vibration-related injury:
1. Anyone using vibrating tools regularly or for
an extended period should first be examined
by a doctor and then have regular medical
check-ups to ensure medical problems are not
being caused or worsened from use. Pregnant
women or people who have impaired blood
circulation to the hand, past hand injuries,
nervous system disorders, diabetes, or
Raynaud’s Disease should not use this tool.
If you feel any symptoms related to vibration (such
as tingling, numbness, and white or blue fingers),
seek medical advice as soon as possible.
%EF!6%G_6E6%LMEGKPOGLIME1
2. Do not smoke during use. Nicotine reduces
the blood supply to the hands and fingers,
increasing the risk of vibration-related injury.
3. Wear suitable gloves to reduce the
vibration effects on the user.
4. Use tools with the lowest vibration
when there is a choice.
5. Include vibration-free periods each day of work.
6. Grip tool as lightly as possible (while still keeping
safe control of it). Let the tool do the work.
7. To reduce vibration, maintain the tool as
explained in this manual. If any abnormal
vibration occurs, stop use immediately.
2. The grounding prong in the plug is connected
through the green wire inside the cord to the
grounding system in the tool. The green wire
in the cord must be the only wire connected
to the tool’s grounding system and must
never be attached to an electrically “live”
terminal. [E**%`?J(&83%J7'3%,89%I'$7*$1\
EF;6GHIJ6KFGLIMNFLMG6MFMO6E6GPJ
3. The tool must be plugged into an appropriate outlet,
properly installed and grounded in accordance
`?J(&83%J7'3%,89%I'$7*$
1. Tools marked with “Grounding Required” have
a three wire cord and three prong grounding
plug. The plug must be connected to a properly
grounded outlet. If the tool should electrically
malfunction or break down, grounding provides
a low resistance path to carry electricity away
from the user, reducing the risk of electric
shock. [E**%`?J(&83%J7'3%,89%I'$7*$1\
with all codes and ordinances. The plug and outlet
should look like those in the preceding illustration.
1. Tools marked “Double Insulated” do not
require grounding. They have a special
double insulation system which satisfies
OSHA requirements and complies with
the applicable standards of Underwriters
Laboratories, Inc., the Canadian Standard
Association, and the National Electrical Code.
I'$7*$#%2&(%a?J(&83%J7'3
2. Double insulated tools may be used in either of the
120 volt outlets shown in the preceding illustration.%%%
1. Grounded tools require a three wire extension cord.
Double Insulated tools can use either
a two or three wire extension cord.
2. As the distance from the supply outlet increases,
you must use a heavier gauge extension cord.
Using extension cords with inadequately sized wire
causes a serious drop in voltage, resulting in loss of
power and possible tool damage. [E**%G,+7*%F1\
3. The smaller the gauge number of the wire, the
greater the capacity of the cord. For example,
a 14 gauge cord can carry a higher current
than a 16 gauge cord. [E**%G,+7*%F1\
4. When using more than one extension cord
to make up the total length, make sure
each cord contains at least the minimum
wire size required. [E**%G,+7*%F1\
5. If you are using one extension cord for more
than one tool, add the nameplate%amperes
and use the sum to determine the required
minimum cord size. [E**%G,+7*%F1\
6. If you are using an extension cord outdoors, make
sure it is marked with the suffix “W-A” (“W” in
Canada) to indicate it is acceptable for outdoor use.
7. Make sure the extension cord is properly wired
and in good electrical condition. Always replace
a damaged extension cord or have it repaired
by a qualified electrician before using it.
8. Protect the extension cords from sharp objects,
excessive heat, and damp or wet areas.
1. Designate a work area that is clean and well-lit.
The work area must not allow access by children
or pets to prevent distraction and injury.
2. Route the power cord along a safe route to reach
the work area without creating a tripping hazard or
exposing the power cord to possible damage. The
power cord must reach the work area with enough
extra length to allow free movement while working.
R*8*(,7%I/*(,$"83%L8#$('4$"&8#
The Impact Wrench is equipped with a rocker-type
Trigger that can switch between clockwise (forward)
rotation to counterclockwise (reverse) rotation.
1. Press the desired Socket (sold
separately) onto the Anvil.
2. Plug the Power Cord into a
120VAC / 60Hz grounded outlet.
3. Press the LOWER part of the Trigger for clockwise
(FORWARD) rotation or the UPPER part of the
Trigger for counterclockwise (REVERSE) rotation.
M&$*- Do not attempt to use both Trigger
functions at the same time.
3. Secure loose workpieces using a vise or clamps
(not included) to prevent movement while working.
4. There must not be objects, such as utility lines,
nearby that will present a hazard while working.
OFPGLIMh To prevent injury: Use both hands to
operate the Impact Wrench, keeping one hand on
the Handle and the other hand on the Housing. Do
not hold or touch impact sockets during use.
4. When finished, release the Trigger.
M&$*- The amount of actual torque may vary depending
on the condition of the threads and other factors.
If tightening critical components, check the
actual torque applied to the fastener with
a mechanical torque wrench (not supplied).
5. To prevent accidents, turn off the tool and
disconnect its power supply after use. Clean,
then store the tool indoors out of children’s reach.
4. Internal damage or wear.
(Carbon brushes or
switch, for example.)
Tool operates slowly. Extension cord too long or
cord diameter too small.
Performance
decreases over time.
Excessive noise
or rattling.
Overheating.1. Forcing tool to work too fast.
Carbon brushes worn or damaged.Replace Carbon Brushes.
Internal damage or wear. (Carbon
brushes or bearings, for example.)
2. Blocked motor housing vents.
3. Motor being strained by long or
small diameter extension cord.
1. Check that cord is plugged in.
2. Check power at outlet. If outlet is unpowered,
turn off tool and check circuit breaker. If breaker
is tripped, make sure circuit is right capacity
for tool and circuit has no other loads.
3. Turn off tool and allow to cool.
Press reset button on tool.
4. Have technician service tool and/
or replace Carbon Brushes.
Eliminate use of extension cord. If an extension
cord is needed, use one with the proper diameter
for its length and load. See Extension Cords
in Grounding section on page 5.
Have technician service tool.
1. Allow tool to work at its own rate.
2. Wear ANSI-approved safety goggles and
NIOSH-approved dust mask/respirator while
blowing dust out of motor using compressed air.
3. Eliminate use of extension cord. If an extension
cord is needed, use one with the proper diameter
for its length and load. See Extension Cords
in Grounding section on page 5.
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS
QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE
ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY
STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY
ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
T"5"$*9%Dd%U,V%Q,((,8$V
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,
and warrants to the original purchaser that this product is free from defects in materials and workmanship for the
period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper
installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries
to persons or property, or for incidental, contingent, special or consequential damages arising from the use of
our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise.
If our inspection verifies the defect, we will either repair or replace the product at our election or we may
elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will
return repaired products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.