Harbor Freight Tools 93100 User Manual
Owner’s Manual & Safety Instructions
Save This Manual Keep 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.
3/8" butterfly
air impact wrench
Visit our website at: http://www.harborfreight.com
Email our technical support at: tech@harborfreight.com
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-800-444-3353 as soon as possible.
Copyright© 2011 by Harbor Freight Tools®. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
ITEM 93100
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Table of Contents
Safety ......................................................... 2
Specifications ............................................. 6
Setup .......................................................... 7
SAFETY OPERATION MAINTENANCESETUP
Operation ................................................... 10
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Maintenance .............................................. 12
Parts List and Diagram .............................. 14
Warranty .................................................... 16
WARNING SYMBOLS AND DEFINITIONS
Obey all safety messages that follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
IMPORTANT SAFETY INSTRUCTIONS
INSTRUCTIONS PERTAINING TO A RISK OF FIRE,
ELECTRIC SHOCK, OR INJURY TO PERSONS
WARNING – When using tools, basic precautions should always be followed, including the following:
General
To reduce the risks of electric shock,
fire, and injury to persons, read all the
instructions before using the tool.
Work Area
1. Keep the work area clean and well lighted.
Cluttered benches and dark areas increase the
risks of electric shock, fire, and injury to persons.
3. Keep bystanders, children, and visitors away
while operating the tool. Distractions are able
to result in the loss of control of the tool.
2. Do not operate the tool in explosive atmospheres,
such as in the presence of flammable liquids,
gases, or dust. The tool is able to create sparks
resulting in the ignition of the dust or fumes.
Page 2 For technical questions, please call 1-800-444-3353. Item 93100
Personal Safety
1. Stay alert. Watch what you are doing and
use common sense when operating the tool.
Do not use the tool while tired or under the
influence of drugs, alcohol, or medication.
A moment of inattention while operating the
tool increases the risk of injury to persons.
2. Dress properly. Do not wear loose
clothing or jewelry. Contain long hair.
Keep hair, clothing, and gloves away from
moving parts. Loose clothes, jewelry, or long
hair increases the risk of injury to persons as
a result of being caught in moving parts.
3. Avoid unintentional starting. Be sure the switch
is off before connecting to the air supply.
Do not carry the tool with your finger on the switch or
connect the tool to the air supply with the switch on.
4. Remove adjusting keys and wrenches
before turning the tool on. A wrench or a
key that is left attached to a rotating part of the
tool increases the risk of personal injury.
Tool Use and Care
5. Do not overreach.
Keep proper footing and balance at all times.
Proper footing and balance enables better
control of the tool in unexpected situations.
6. Use safety equipment. A dust mask,
non-skid safety shoes and a hard hat
must be used for the applicable
conditions. Wear heavy-duty work
gloves during use.
7. Always wear eye protection.
Wear ANSI-approved safety goggles.
8. Always wear hearing protection
when using the tool.
Prolonged exposure to high intensity
noise is able to cause hearing loss..
SAFETYOPERATIONMAINTENANCE SETUP
1. Use clamps or another practical way to secure
and support the workpiece to a stable platform.
Holding the work by hand or against the body is
unstable and is able to lead to loss of control.
2. Do not force the tool. Use the correct tool for the
application. The correct tool will do the job better
and safer at the rate for which the tool is designed.
3. Do not use the tool if the switch does not turn the
tool on or off. Any tool that cannot be controlled
with the switch is dangerous and must be repaired.
4. Disconnect the tool from the air source
before making any adjustments, changing
accessories, or storing the tool. Such preventive
safety measures reduce the risk of starting the
tool unintentionally. Turn off and detach the air
supply, safely discharge any residual air pressure,
and release the throttle and/or turn the switch to
its off position before leaving the work area.
5. Store the tool when it is idle out of reach
of children and other untrained persons.
A tool is dangerous in the hands of untrained users.
6. Maintain the tool with care. Keep a cutting
tool sharp and clean. A properly maintained
tool, with sharp cutting edges reduces the
risk of binding and is easier to control.
7. Check for misalignment or binding of moving
parts, breakage of parts, and any other condition
that affects the tool's operation. If damaged,
have the tool serviced before using. Many accidents
are caused by poorly maintained tools.
There is a risk of bursting if the tool is damaged.
8. Use only accessories that are identified by the
manufacturer for the specific tool model. Use of
an accessory not intended for use with the specific
tool model, increases the risk of injury to persons.
Page 3For technical questions, please call 1-800-444-3353.Item 93100
Service
1. Tool service must be performed only
by qualified repair personnel.
2. When servicing a tool, use only identical
SAFETY OPERATION MAINTENANCESETUP
replacement parts. Use only authorized parts.
Air Source
1. Never connect to an air source that is
capable of exceeding 200 psi.
Over pressurizing the tool may cause
bursting, abnormal operation, breakage
of the tool or serious injury to persons.
Use only clean, dry, regulated compressed air at the
rated pressure or within the rated pressure range as
marked on the tool. Always verify prior to using the
tool that the air source has been adjusted to the rated
air pressure or within the rated air-pressure range.
SAVE THESE INSTRUCTIONS.
Symbols and Specific Safety Instructions
3. Use only the lubricants supplied with the
tool or specified by the manufacturer.
2. Never use oxygen, carbon dioxide, combustible
gases or any bottled gas as an air source
for the tool. Such gases are capable of
explosion and serious injury to persons.
Symbol Definitions
Symbol Property or statement
n
o
.../min
PSI
ft-lb
BPM
CFM
SCFM
No-load speed
Revolutions or reciprocation per minute
Pounds per square inch of pressure
Foot-pounds of torque
Blows per minute
Cubic Feet per Minute flow
Cubic Feet per Minute flow
at standard conditions
Symbol Property or statement
NPT
NPS
National pipe thread, tapered
National pipe thread, straight
WARNING marking
concerning Risk of Eye Injury.
Wear ANSI-approved eye protection.
WARNING marking concerning Risk of
Hearing Loss. Wear hearing protection.
WARNING marking concerning
Risk of Respiratory Injury. Wear
NIOSH-approved dust mask/respirator.
WARNING marking concerning
Risk of Explosion.
Page 4 For technical questions, please call 1-800-444-3353. Item 93100
Specific Safety Instructions
1. The warnings and precautions discussed in this
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.
2. WARNING: The brass components of
this product contain lead, a chemical
known to the State of California to cause
birth defects (or other reproductive harm).
(California Health & Safety code § 25249.5, et seq.)
3. Only use with accessories rated to handle the
forces exerted by this tool during operation.
Other accessories not designed for the forces
generated may break and forcefully launch pieces.
Vibration Precautions
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.
4. Attach all accessories properly to the tool before
connecting the air supply. A loose accessory
may detach or break during operation.
5. Obey the manual for the air compressor
used to power this tool.
6. Install an in-line shutoff valve to allow
immediate control over the air supply in an
emergency, even if a hose is ruptured.
7. Use this tool with both hands only. Using tools
with only one hand can result in loss of control.
8. 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.
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
tool as explained in this manual.
If abnormal vibration occurs, stop immediately.
SAFETYOPERATIONMAINTENANCE SETUP
SAVE THESE INSTRUCTIONS.
Page 5For technical questions, please call 1-800-444-3353.Item 93100
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