Harbor Freight Tools Impact Driver 67096 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.  
REV 14j  
Email our technical support at: [email protected]  
When unpacking, make sure that the product is intact  
and undamaged. If any parts are missing or broken,  
please call 1-888-866-5797 as soon as possible.  
©
®
Copyright 2009 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.  
Read this material before using this product.  
Failure to do so can result in serious injury.  
SAVE THIS MANUAL.  
 
medication. A moment of inattention  
while operating the tool increases the  
risk of injury to persons.  
exposure to high intensity noise is  
able to cause hearing loss.  
Tool use and care  
b. 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.  
a. 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.  
b. 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.  
c. 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.  
c. Do not use the tool if the Trigger  
switch does not turn the tool on or  
off. Any tool that cannot be controlled  
with the Trigger is dangerous and  
must be repaired.  
d. 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.  
d. Disconnect the tool from the  
air source before making  
e. Do not overreach. Keep proper  
footing and balance at all times.  
Proper footing and balance  
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 Trigger to its  
off position before leaving the work  
area.  
enables better control of the tool in  
unexpected situations.  
f.  
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.  
e. 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.  
g.  
h.  
Always wear eye  
protection. Wear ANSI-  
approved safety goggles.  
Always wear hearing  
protection when using  
the tool. Prolonged  
f.  
Maintain the tool with care.  
A properly maintained tool is easier to  
control.  
Item 67096  
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Page 3  
 
g. Check for misalignment or binding b. Never use oxygen, carbon dioxide,  
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.  
combustible gases or any bottled  
gas as an air source for the tool.  
Such gases are capable of explosion  
and serious injury to persons.  
SAVE THESE  
INSTRUCTIONS.  
h. 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.  
Symbol Definitions  
Symbol  
Property or statement  
No-load speed  
n
o
Revolutions or reciprocation per  
minute  
.../min  
PSI  
Pounds per square inch of pressure  
Foot-pounds of torque  
Service  
a. Tool service must be performed  
ft-lb  
only by qualified repair personnel.  
Blows per minute  
BPM  
CFM  
SCFM  
NPT  
b. When servicing a tool, use only  
identical replacement parts. Use  
only authorized parts.  
Cubic Feet per Minute flow  
Cubic Feet per Minute flow at  
standard conditions  
c. Use only the lubricants supplied  
with the tool or specified by the  
manufacturer.  
National pipe thread, tapered  
National pipe thread, straight  
NPS  
Air source  
WARNING marking concerning Risk  
of Eye Injury. Wear ANSI-approved  
eye protection.  
a.  
Never connect to an air  
source that is capable of  
WARNING marking concerning Risk  
of Hearing Loss. Wear hearing  
protection.  
exceeding 115 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.  
WARNING marking concerning Risk  
of Respiratory Injury. Wear NIOSH-  
approved dust mask/respirator.  
WARNING marking concerning Risk  
of Explosion.  
Item 67096  
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Page 4  
 
Vibration Precautions  
Specific Safety Instructions  
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. 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.  
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.  
2. WARNING: The brass components  
of this product contain lead, a  
chemical known to the State of  
California to cause cancer and 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.  
2. Do not smoke during use. Nicotine  
reduces the blood supply to the  
hands and fingers, increasing the risk  
of vibration-related injury.  
4. Attach all accessories properly to the  
tool before connecting the air supply.  
A loose accessory may detach or  
break during operation.  
3. Wear suitable gloves to reduce the  
vibration effects on the user.  
5. Obey the manual for the air  
compressor used to power this tool.  
4. Use tools with the lowest vibration  
when there is a choice.  
6. Install an in-line shutoff valve to allow  
immediate control over the air supply  
in an emergency, even if a hose is  
ruptured.  
5. Include vibration-free periods each  
day of work.  
6. Grip tool with both hands as lightly  
as possible (while still keeping safe  
control of it). Let the tool do the work.  
7. Use this tool with both hands only.  
Using tools with only one hand can  
result in loss of control.  
7. To reduce vibration, maintain tool as  
explained in this manual. If abnormal  
vibration occurs, stop immediately.  
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.  
SAVE THESE INSTRUCTIONS.  
For technical questions, please call 1-888-866-5797.  
Item 67096  
Page 5  
 
SPECIFICATIONS  
Male  
Connector  
Male  
Connector  
Maximum Air Pressure 115 PSI  
Tool  
Air Inlet  
1/2″ -14 NPT  
Quick  
Coupler  
1″ Square Drive  
with 6″ extension  
Air Hose  
on Reel  
Drive Size  
375 BPM (Blows Per  
Minute)  
Maximum Speed*  
Average Air  
Consumption  
Valve  
Oiler  
Filter  
16.5 CFM @ 90 PSI  
250-1250 ft-lb  
Air  
Compressor  
Torque Range  
* Maximum speed at stated maximum air pressure.  
Excess air pressure is hazardous and may cause the  
tool to exceed stated maximum speed.  
Regulator with  
Pressure Gauge  
Recommended Min. Air Hose: 1/2″ (Not Supplied)  
Recommended Air Line Components  
INITIAL TOOL SET UP/  
ASSEMBLY  
1. Incorporate a filter, regulator with  
pressure gauge, oiler, in-line shutoff  
valve, and quick coupler for best  
service, as shown in the diagram  
above. An in-line shutoff ball  
valve is an important safety device  
because it controls the air supply  
even if the air hose is ruptured.  
The shutoff valve should be a ball  
valve because it can be closed  
quickly.  
Read the ENTIRE IMPORTANT  
SAFETY INFORMATION  
section at the beginning of this  
manual including all text under  
subheadings therein before set  
up or use of this product.  
Note: For additional information regarding  
the parts listed in the following pages,  
refer to the Assembly Diagram near  
the end of this manual.  
Note: If an automatic oiler system is not  
used, add a few drops of Pneumatic  
Tool Oil to the airline connection  
before operation. Add a few more  
drops after each hour of continual  
use.  
• This air tool may be shipped with a  
protective plug covering the air inlet.  
Remove this plug before set up.  
Air Supply  
2. Attach an air hose to the  
compressor’s air outlet. Connect  
the air hose to the air inlet of the  
tool. Other components, such as  
a connector and quick coupler, will  
make operation more efficient, but  
are not required.  
TO PREVENT  
EXPLOSION:  
Use only clean, dry, regulated,  
compressed air to power this  
tool. Do not use oxygen,  
carbon dioxide, combustible  
gases, or any other bottled  
gas as a power source for this  
tool.  
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Page 6  
 
discharge the tool in a safe fashion  
after disconnecting to ensure that the  
tool is disconnected and unpowered.  
WARNING! TO PREVENT SERIOUS  
INJURY FROM ACCIDENTAL  
OPERATION:  
Do not install a female quick  
coupler on the tool. Such a coupler  
contains an air valve that will allow  
the air tool to retain pressure and  
operate accidentally after the air  
supply is disconnected.  
OPERATING INSTRUCTIONS  
Read the ENTIRE IMPORTANT  
SAFETY INFORMATION  
section at the beginning of this  
manual including all text under  
subheadings therein before set  
up or use of this product.  
Note: Air flow, and therefore tool  
performance, can be hindered by  
undersized air supply components.  
Inspect tool before use, looking  
for damaged, loose, and  
missing parts. If any problems  
are found, do not use tool until  
repaired.  
3. The air hose must be long enough  
to reach the work area with enough  
extra length to allow free movement  
while working.  
4. Close the in-line safety valve between  
the compressor and the tool.  
Tool Set Up  
TO PREVENT  
SERIOUS INJURY:  
5. Turn on air compressor according to  
manufacturer’s directions and allow it  
to build up pressure until it cycles off.  
Do not adjust or tamper with  
any control or component in a  
way not specifically explained  
within manual. Improper  
adjustment can result in tool  
failure or other serious  
hazards.  
6. Adjust the air compressor’s output  
regulator so that the air output is  
enough to properly power the tool,  
but the output will not exceed the  
tool’s maximum air pressure at any  
time. Adjust the pressure gradually,  
while checking the air output gauge  
to set the right pressure range.  
Work Piece and Work Area Set Up  
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.  
7. Inspect the air connections for leaks.  
Repair any leaks found.  
8. If the tool will not be used at this time,  
release the Trigger, close the shut-off  
valve, press the Trigger to discharge  
trapped line pressure, and detach air  
supply hose from the air supply.  
2. Route air hose along a safe route to  
reach work area without creating a  
tripping hazard or exposing air hose  
to possible damage. Also avoid  
sharp bends and do not place items  
on hose during use.  
Note: Residual air pressure should not be  
present after the tool is disconnected  
from the air supply. However, it is a  
good safety measure to attempt to  
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Page 7  
 
3. The air hose must be long enough  
to reach the work area with enough  
extra length to allow free movement  
while working.  
7. Hold the D-Handle firmly and place  
other hand around Frame Handle  
(50). Gently squeeze the Trigger (15).  
8. Place socket (not included) over  
desired nut, hold handle firmly and  
gently squeeze the Trigger.  
4. There must not be hazardous objects  
(such as utility lines) nearby that will  
present a hazard while working.  
9. If tool requires more force to  
accomplish task in Forward or  
Reverse setting, verify that the tool  
receives sufficient, unobstructed  
airflow (CFM) and increase the  
pressure (PSI) output of regulator up  
to maximum air pressure rating of the  
tool.  
General Operating Instructions  
1. WARNING! Use only 1″ Drive Impact  
type sockets (not supplied).  
2. For added stability, use wrench (not  
included) to attach D-Handle (47)  
to side of Hammer Case (2) using  
Screws (48) and Washers (49).  
CAUTION! TO PREVENT TOOL  
AND ACCESSORY FAILURE,  
RESULTING IN INJURY:  
Do not exceed tool’s maximum air  
pressure rating (115 PSI).  
If tool still does not have sufficient  
force at maximum pressure and  
sufficient airflow, then a larger tool  
may be required.  
3. If an automatic oiler is not used, add  
a few drops of Pneumatic Tool Oil  
to the airline connection before use.  
Add a few drops more after each  
hour of continual use.  
4. Push and snap socket (not included)  
onto Anvil (10).  
10. When the nut is tightened or  
loosened, release the Trigger. Use a  
torque wrench to check the torque of  
the tightened nut.  
5. This Impact Wrench can be used  
in either Forward or Reverse  
direction. To operate in Forward,  
turn the Regulator Knob (33) under  
the housing to the desired Forward  
speed.  
11. To prevent accidents, turn off tool,  
detach air supply, safely discharge  
any residual air pressure in tool, and  
release Trigger after use. Clean  
external surfaces of tool with clean,  
dry cloth, and apply a thin coat of tool  
oil to the driver end. Store indoors  
out of children’s reach.  
NOTE: There are three torque settings  
for the Forward direction. To tighten,  
place the socket over the hex nut you  
wish to tighten.  
6. For Reverse, turn the Regulator Knob  
to the desired Reverse speed.  
NOTE: There are three torque settings  
for the Reverse direction. To loosen,  
set the Regulator Knob to one of the  
Reverse settings.  
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Page 8  
 
Note: These procedures are in addition to  
the regular checks and maintenance  
explained as part of the regular  
USER-MAINTENANCE  
INSTRUCTIONS  
operation of the air-operated tool.  
Procedures not specifically  
explained in this manual  
must be performed only by a  
qualified technician.  
1. Daily - Air Supply Maintenance:  
Every day, perform maintenance  
on the air supply according to  
the component manufacturers’  
instructions. The lubricator’s oil  
level needs to be maintained and  
the moisture filter must be regularly  
drained. Performing routine  
maintenance on the air supply will  
allow the tool to operate more safely  
and will also reduce wear on the tool.  
TO PREVENT  
SERIOUS INJURY  
FROM ACCIDENTAL  
OPERATION: Turn off tool,  
detach air supply, safely  
discharge any residual air  
pressure in tool, and release  
Trigger before performing any  
inspection, maintenance, or  
cleaning procedures.  
2. Quarterly (every 3 months) -  
Tool Disassembly, Cleaning,  
and Inspection: Have the internal  
mechanism cleaned, inspected, and  
lubricated by a qualified technician.  
TO PREVENT SERIOUS  
INJURY FROM TOOL  
FAILURE: Do not use  
damaged equipment. If  
abnormal noise, vibration,  
or leaking air occurs, have  
problem corrected before  
further use.  
3. Store Impact Wrench in clean, dry  
and safe location out of reach of  
children.  
TO PREVENT EXPLOSION:  
Lubricate tool only with  
specified lubricants.  
Lubricate the air inlet  
using only pneumatic tool  
oil. Lubricate the internal  
mechanism using only  
white lithium grease. Other  
lubricants may damage the  
mechanism and may be  
highly flammable, causing an  
explosion.  
Item 67096  
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Page 9  
 
Troubleshooting  
Problem  
Possible Causes  
Likely Solutions  
Decreased output. 1. Not enough air pressure and/ 1. Check for loose connections and make sure  
or air flow.  
that air supply is providing enough air flow  
(CFM) at required pressure (PSI) to the  
tool’s air inlet. Do not exceed maximum air  
pressure.  
2. Obstructed trigger.  
2. Clean around trigger to ensure free  
movement.  
3. Incorrect lubrication or not  
enough lubrication.  
3. Lubricate using air tool oil and grease  
according to directions.  
4. Blocked air inlet screen (if  
equipped).  
4. Clean air inlet screen of buildup.  
5. Air leaking from loose housing, 5. Make sure housing is properly assembled  
hose or connections.  
and tight. Repair hose/connection air leaks.  
6. Mechanism contaminated.  
6. Have qualified technician clean and lubricate  
mechanism. Install in-line filter in air supply  
as stated in Initial Set Up: Air Supply.  
7. Vane wear or damage.  
1. Incorrect lubrication or not  
enough lubrication.  
7. Replace all vanes.  
1. Lubricate using air tool oil and grease  
according to directions.  
Housing heats  
during use.  
2. Worn parts.  
2. Have qualified technician inspect internal  
mechanism and replace parts as needed.  
1. Check for incorrect alignment and uneven  
gaps. If cross-threaded, disassemble and  
replace damaged parts before use.  
Severe air  
leakage.  
1. Cross-threaded housing  
components.  
2. Loose housing.  
2. Tighten housing assembly. If housing cannot  
tighten properly, internal parts may be  
misaligned.  
3. Damaged valve or housing.  
3. Replace damaged components.  
4. Dirty, worn or damaged valve. 4. Clean or replace valve assembly.  
Follow all safety precautions whenever diagnosing or servicing the tool.  
Disconnect air supply before service.  
Item 67096  
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Page 10  
 
PARTS LIST  
Part  
Description  
Q’ty  
Part  
Description  
Q’ty  
1
1
1
1
1
1
1
1
1
1
1
6
1
1
1
2
3
4
5
6
7
8
9
Oil Seal  
1
28 Spring  
Hammer Case  
Screw  
Spring Washer  
Front Gasket  
Hammer Case Bushing  
Side Plate  
1
4
4
1
1
1
1
1
1
1
1
1
29 Regulator  
30 Spring Pin  
31 O-Ring  
32 Spring Pin  
33 Regulator Knob  
34 Reverse Valve Bushing  
35 Spring Pin  
36 Rear Gasket  
37 Ball Bearing  
38 Rear End Plate  
39 Rotor Blade  
40 Spring Pin  
41 Rotor  
Retainer Ring  
O-ring  
10 Anvil  
11 Pin Hammer  
12 Cam  
13 Hammer Cage  
14 Housing  
1
15 Trigger  
1
1
1
1
1
1
1
1
42 Spring Pin  
43 Cylinder  
44 Spring Pin  
45 Front End Plate  
46 Ball Bearing  
47 D-Handle  
1
1
1
1
1
1
4
4
16 Spring Pin  
17 Needle Pin  
18 O-Ring  
19 Screw  
20 Throttle Pin  
21 Valve Stem  
22 O-Ring  
48 Screw  
49 Washers  
23 Throttle Valve  
24 Throttle Spring  
25 O-Ring  
1
1
1
50 Frame Handle  
51 Spring Washer  
52 Screw  
1
4
4
26  
Air Inlet  
1
53 Oiling  
1
27 Steel Ball  
1
Record Product’s Serial Number Here:  
Note: If product has no serial number, record month and year of purchase instead.  
Note: Some parts are listed and shown for illustration purposes only, and are not  
available individually as replacement parts.  
PLEASE READ THE FOLLOWING CAREFULLY  
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.  
Item 67096  
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Page 11  
 
ASSEMBLY DIAGRAM  
90 Day Warranty  
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.  
 

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