OEM 24403 Service manual

UNPACKING
After unpacking unit, inspect carefully for any
damage that may have occurred during transit.
Check for loose, missing, or damaged parts. If
any damage is observed, a shipping damage
claim must be filed with carrier. Do not use the
OEMTOOLS Impact Wrench if broken, bent,
cracked or damaged parts (including labels)
are noted. Any Impact Wrench that appears
damaged in any way, operates abnormally or is
missing parts should be removed from service
immediately. If you suspect that the Impact
Wrench was subjected to shock load (a load
that was dropped suddenly, unexpectedly, etc.)
immediately discontinue use until it has been
checked by a factory authorized service center.
Please read and save these instructions. Read through this owner’s manual carefully before using product. Protect
yourself and others by observing all safety information, warnings, and cautions. Failure to comply with instructions
could result in personal injury and/or damage to product or property. Please retain instructions for future reference.
The following safety information is provided as a guideline to help you operate your Impact Wrench under the
safest possible conditions. Any tool or piece of equipment can be potentially dangerous to use when safety or safe
handling instructions are not known or not followed. The following safety instructions are to provide the user with the
information necessary for safe use and operation. Please read and retain these instructions for the continued safe use
of your service system. Failure to follow instructions listed below may result in serious injury. In addition, make certain
that anyone that uses the equipment understands and follows these safety instructions as well.
Operating Instructions and Parts Manual 24403
12/14
2014 ©OEMTOOLS
FOR CUSTOMER SERVICE
Technical Question?
CALL 1-866-458-2472
[email protected]
MIGHTY COMPACT
½” IMPACT WRENCH
Explanation of Safety Signal Words
CAUTION
Notes
CAUTION
WARNING
WARNING
: Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
: Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury.
: Used without the safety alert symbol indicates a potentially hazardous situation which, if
not avoided, may result in property damage.
: Provide clarity and helpful information.
WARNING Pursuant to California Proposition 65, this product contains chemicals known to the state of
California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.

2
Operating Instructions and Parts Manual 24403
MIGHTY COMPACT
½” IMPACT WRENCH
Thank you very much for choosing an OEMTOOLS
Product!
For future reference, please complete the owner’s
record below:
Model: _______________ Purchase Date: _______________
Save the receipt, warranty and these instructions. It is
important that you read the entire manual to become
familiar with this product before you begin using it.
This machine is designed for certain applications only.
OEMTOOLS cannot be responsible for issues
arising from modification. We strongly recommend
this machine is not modified and/or used for any
application other than that for which it was
designed. If you have any questions relative to a
particular application, DO NOT use the machine until
you have first contacted OEMTOOLS to determine if
it can or should be performed on the product.
For technical questions please call 1-866-458-2472.
IMPORTANT INSTRUCTIONS
AND SAFETY RULES
1. Know your tool. Read this manual carefully. Learn
the tool’s applications and limitations, as well as,
potential hazards specific to it.
2. Keep work area clean and well lit. Cluttered or dark
work areas invite accidents.
3. Keep children away. All children should be kept
away from the work area. Never let a child handle
a tool without strict adult supervision.
4. Do not operate this tool if under the influence
of alcohol or drugs. Read warning labels on
prescriptions to determine if your judgment or
reflexes are impaired while taking drugs. If there is
any doubt, do not attempt to operate.
5. Use safety equipment. Eye protection should be
worn at all times when operating this tool. Use ANSI
approved safety glasses. Everyday eyeglasses are
NOT safety glasses. Dust mask, non-skid safety
shoes, hard hat or hearing protection should be used
in appropriate conditions.
6. Wear proper apparel. Loose clothing, gloves, neck-
ties, rings, bracelets or other jewelry may present a
potential hazard when operating this tool. Keep all
apparel clear of the tool.
7. Don’t overreach. Keep proper footing and balance
at all times when operating this tool.
8. Check for damage. Check your tool regularly. If
part of the tool is damaged it should be carefully
inspected to make sure that it can perform its
intended function correctly. If in doubt, the part
should be repaired. Refer all servicing to a qualified
technician. Consult your dealer for advice.
9. Keep away from flammables. Do not attempt
to operate this tool near flammable materials
or combustibles. Failure to comply may cause
serious injury or death.
10. Store idle tools out of the reach of children and
untrained persons. Tools may be dangerous in the
hands of untrained users.
• Maintain tools with care.
• Keep tools dry and clean.
• Do not use a damaged tool. Tag damaged tools “Do
not use” until repaired.
• Use only accessories that are recommended by the
manufacturer for your model. Accessories that may
be suitable for one tool may become hazardous
when used on another tool.
• Tool service must be performed only by qualified repair
personnel. Service or maintenance performed by
unqualified personnel could result in a risk of injury.
• When servicing a tool, use only identical replacement
parts. Use of unauthorized parts or failure to follow
maintenance instructions may create a risk of injury.
• Maintain a safe working environment. Keep the
work area well lit. Make sure there is adequate
surrounding workspace. Keep the work area free of
obstructions, grease, oil, trash, and other debris. Do
not use this product in a damp or wet location.
• Maintain labels and nameplates on this product.
These carry important information. If unreadable or
missing, contact OEMTOOLS for a replacement.
• Before use, read and understand all warnings, safety
precautions, and instructions as outlined in the
vehicle manufacturer’s service manual. It is beyond
the scope of this manual to properly describe the
correct procedure and test data for each vehicle.
• Always perform vehicle service in a properly
ventilated area. Never run an engine without proper
ventilation for its exhaust. Stop work and take
necessary steps to improve ventilation in the work
area if you develop momentary eye, nose, or throat
irritation as this indicates inadequate ventilation.
12/14
2014 ©OEMTOOLS

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Operating Instructions and Parts Manual 24403
MIGHTY COMPACT
½” IMPACT WRENCH
WARNING
• Disconnect from air supply before changing
accessories or servicing.
• Check correct air pressure is maintained and not
exceeded.
• Due to possible presences of asbestos dust
from brake linings, when working around vehicle
brake systems we recommend you wear suitable
respiratory protection.
NOTE: The manufacturer declines any and all
responsibility for damage to vehicles or components if
said damage is the result of unskillful handling by the
operator or of failure to observe the basic safety rules
set forth in the instruction manual.
WARNING
Read Rules for Safe Operation and Instructions Carefully.
IMPORTANT SAFETY INSTRUCTIONS
The warnings, precautions, and instructions discussed
in this manual cannot cover all possible conditions
and situations that may occur. The operator must
understand that common sense and caution are
factors which cannot be built into this product, but
must be supplied by the operator.
WARNING
1. Use only attachments recommended or sold by
manufacturer. Use of non-recommended attachments
may result in fire, electric shock or injury.
2. Do not disassemble the Impact Wrench. Take it
to a qualified professional when service or repair
is required. Incorrect reassembly may result in
electric shock or fire.
3. Keep air hose away from heat, oil and sharp
edges. Check air hose for wear before each use
and ensure that all connections are secure.
4. Only use impact sockets which are specifically
designed for use with an impact wrench.
5. Wear approved safety eye/face shield, ear
defenders and hand protection.
6. When not in use disconnect from air supply and
store in a safe dry, childproof location.
7. DO NOT use the wrench for task it is not
designed to perform.
8. DO NOT carry the wrench by the air hose, or
yank the hose from the air supply.
9. DO NOT operate wrench if you are tired or under
the influence of alcohol, drugs or intoxicating
medication.
10. DO NOT direct air from the air hose at yourself
or others.
DISPOSAL
At the end of the useful life of the OEMTOOLS Impact
Wrench, dispose of the components according to all
state, federal, and local regulations.
PURPOSE
The 24403 Mighty Compact ½” Impact Drive Wrench is a
combination of composite materials, alloyed metals and
twin hammer design resulting in a lightweight, durable and
powerful wrench that is suitable for professional garage use.
PRODUCT SPECIFICATIONS
Driver Size: 1/2”
Free Speed: 11000 RPM
Bolt Capacity: 16 mm
Working Torque: 450 Ft./Lbs.
Clutch Type: Twin Hammer
Air Consumption: 4.7 CFM
Weight: 3.5 Lbs.
Length: 5 1/4”
Inlet (NPT) 1/4”
WARNING
Ensure the air supply is clean and does not exceed
90 psi while operating the wrench. Excessive wear
will result if air pressure is too high and /or you use
unclean air. This can shorten the product life and may
be dangerous causing damage and/or personal injury.
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2014 ©OEMTOOLS

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Operating Instructions and Parts Manual 24403
MIGHTY COMPACT
½” IMPACT WRENCH
PREPARING WRENCH FOR USE
Air Supply
Ensure wrench air valve (or trigger) is in the “off” position
before connecting to the air supply. According to
specifications your wrench requires an air pressure of
90 psi.
• Drain the compressor air tank daily as water in the air line
will damange the wrench.
• Clean compressor air inlet filter weekly.
• Line pressure should be increased to compensate for
unusually long air hoses (over 8 meters).
• The minimum hose diameter should be 3/8”.
• Keep hose away from heat, oil and sharp edges.
• Check hose for wear,and make certain that all
connections are secure.
Couplings
Vibration may cause failure if a quick change coupling
is connected directly to the wrench. To overcome this,
connect a leader hose to the wrench. A quick change
coupling may then be used to connect the leader hose to
the air line recoil hose.
OPERATING INSTRUCTIONS:
WARNING
Ensure you read, understand and apply safety
instructions before use.
1. Only use impact sockets which are specifically
designed for use with an impact wrench.
2. Connect the wrench to the air hose.
3. Place the socket over the fastener nut and depress
the trigger to operate the wrench.
4. The Forward Reverse Valve is located on the
back of the Impact. Simply
move the valve right or left to
change direction.
DO NOT allow wrench to free run for an exdtended period
of time as this will reduce bearing life.
MAINTENANCE
WARNING
Disconnect wrench from air supply before changing
accessories, servicing or performing maintenance.
1. Replace or repair damaged parts. Use genuine
parts only. Unauthorized parts may be dangerous
and will invalidate the warranty.
2. If the air system does not have an oiler then
lubricate the Impact Wrench daily with a few drops
of air tool oil into the air inlet.
3. Clean the wrench after use.
4. DO NOT use worn, or damaged sockets.
TROUBLESHOOTING
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2014 ©OEMTOOLS
Problem Cause Remedies
Loss of
power or
erratic action.
Reduced
performance.
a. Excessive drain
on the air line.
b. Moisture or
restriction in the
air pipe.
c. Incorrect size
or type of hose
connectors.
Grit or gum
deposits in the
wrench.
Check the air supply
and follow the
Preparing Wrench for
Use section
of this manual.
If your model has an
air strainer (located in
the area of the
air inlet), remove
the strainer and clean
it. Flush the wrench
out with gum solvent
oil or an equal mixture
of SAE No 10 oil and
paraffin. Allow to dry
before use.

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Operating Instructions and Parts Manual 24403
MIGHTY COMPACT
½” IMPACT WRENCH
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2014 ©OEMTOOLS
1
2
3
5
4
14
16
18
17
19
20
21
22
24
23
15
26
27
28
29
8
32
30
31
33
34
25
11
12
6
7
35
36
9
10
13
11
Item # Part Name Quantity
24403-1 Housing 1
24403-2 Trigger 1
24403-3 Valve Seat 1
24403-4 Throttle Valve 1
24403-5 Valve Spring 1
24403-6 Exhaust Deflector 1
24403-7 Air Inlet Bushing 1
24403-8 Screw 1
24403-9 Socket Retainer 8
24403-10 O-Ring 1
24403-11 Cap Screw 1
24403-12 Flying Ring 1
24403-13 Housing 1
24403-14 O-Ring 1
24403-15 Bushing 1
24403-16 Anvil (1/2” DR) 1
24403-17 Hammer Cage 1
24403-18 Hammer Dog 2
Item # Part Name Quantity
24403-19 Hammer Pin 2
24403-20 Ball Bearing 1
24403-21 Front End Plate 1
24403-22 Cylinder 1
24403-23 Rotor 1
24403-24 Rotor Blade 6
24403-25 Locking Pin 1
24403-26 Rear End Plate 1
24403-27 Dowel Pin 1
24403-28 Ball Bearing 1
24403-29 Gasket 1
24403-30 O-Ring 1
24403-31 Retainer Ring 1
24403-32 End Cap 1
24403-33 Reverse Lever 1
24403-34 Spring 1
24403-35 O-Ring 1
24403-36 O-Ring 1
Note:
Not all components of the Impact
Wrench are replacement items, but are
illustrated as a convenient reference for
location and position in the assembly
sequence.

6
Operating Instructions and Parts Manual 24403
MIGHTY COMPACT
½” IMPACT WRENCH
OEMTOOLS™ ONE YEAR WARRANTY
If for up to one year from the date of purchase of this OEMTOOLS product you find any defect in material
or workmanship, through normal usage, return it to the place of purchase, or to OEMTOOLS for repair or
replacement at our discretion. In order to obtain this service send your tool and proof of purchase, transportation
pre-paid, to OEMTOOLS Q.A. Dept, 3580 E. Raines Road #3, Memphis, TN 38118. We will not be responsible
for lost or damaged goods during transportation, please insure your package. 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.
OEMTOOLS does not provide warranty for products labeled other than OEM or OEMTOOLS . OEMTOOLS will
not provide any warranty for products subjected to abnormal use. Abnormal use includes, but is not limited to,
abuse, accident, alteration, neglect, and unauthorized or unreasonable use or repairs. This warranty does not
cover bits, blades, files, batteries, or calibration. We recommend that you maintain your tools and sharpen or
replace blades, bits, files, and batteries as necessary. OEMTOOLS reserves the right to makes any changes in
construction or design at any time without any obligation in incorporating such changes to tools or equipment
previously sold.
OEMTOOLS 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 one year 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. This warranty gives you specific legal rights, and you may
also have other rights, which vary from state to state.
12/14
2014 ©OEMTOOLS
CONTACT US
3580 E. Raines Road, Suite 3, Memphis, TN 38118
Tel: [phone]
www.oem-tools.com