AIR BRAD FINISH NAILER
16 GAUGE - 2”
97520
Model
94481
ASSEMBLY AND OPERATING INSTRUCTIONS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright© 2007 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.
For technical questions or replacement parts, please call 1-800-444-3353.
REV 08g
PRODUCT SPECIFICATIONS
Fastener Size Capacity 3/4” ~ 2” Long / 16 Gauge
Magazine Capacity 100 Fasteners
Load Style Top Loading Magazine
Nose Piece Design Spring Actuated Quick Release
Maximum Air Pressure 120 PSI
Average Air Flow 5 ~ 6 SCFM @ 90 PSI
Air Inlet Size 1/4”-18 NPT
Trigger Mechanism Full Sequential
Accessories Pneumatic Tool Oil / Wrenches (Qty. 2)
Overall Dimensions 11-3/4” L x 2-3/4” W x 11-1/4” H
Unit Weight 3.9 Pounds
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly, operating,
inspection, maintenance and cleaning procedures, parts list and assembly diagram.
Keep your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep this manual and invoice in a safe and dry place for future reference.
SAFETY WARNINGS AND PRECAUTIONS
WARNING: When using tool, basic safety precautions should always be
followed to reduce the risk of personal injury and damage to equipment.
Read all instructions before using this tool!
1. Keep work area clean. Cluttered areas invite injuries.
2. Observe work area conditions. Do not use machines or power tools in damp
or wet locations. Do not expose to rain. Keep work area well lit. Do not use
electrically powered tools in the presence of ammable gases or liquids.
3. Keep children away. Children must never be allowed in the work area. Do not
let them handle machines, tools, extension cords, or air hoses.
4. Store idle equipment. When not in use, tools must be stored in a dry location
to inhibit rust. Always lock up tools and keep out of reach of children.
5. Use the right tool for the job. Do not attempt to force a small tool or attachment
to do the work of a larger industrial tool. There are certain applications for
which this tool was designed. It will do the job better and more safely at the rate
for which it was intended. Do not modify this tool, and do not use this tool for a
purpose for which it was not intended.
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 2
6. Dress properly. Do not wear loose clothing or jewelry as they can be caught in
moving parts. Protective, electrically non-conductive clothes and non-skid foot-
wear are recommended when working. Wear restrictive hair covering to contain
long hair.
7. Do not overreach. Keep proper footing and balance at all times. Do not reach
over or across running machines or air hoses.
8. Use eye and ear protection. Always wear ANSI approved impact safety
goggles and appropriate hearing protection. Wear a full face shield if you
are producing metal lings or wood chips. Wear a NIOSH approved dust
mask or respirator when working around metal, wood, and chemical dusts
and mists. Other people in the work area must also wear ANSI approved
impact safety goggles.
9. Maintain tools with care. Keep tools clean for better and safer performance.
Follow instructions for lubricating and changing accessories. Inspect tool cords
and air hoses periodically and, if damaged, have them repaired by a qualied
technician. The handle must be kept clean, dry, and free from oil and grease at
all times. Do not operate a tool if any portion of the tool’s operating controls are
inoperable, disconnected, altered, or not working properly.
10. Disconnect air hose and release any built-up air pressure. Never service the
Nailer, clear jams, or disassemble with the air hose attached. Always release
any built-up air even after disconnecting hose. Disconnect the Nailer when not
in use.
11. Remove adjusting wrenches. Check that adjusting wrenches are removed
from the tool or machine work surface before attaching to an air source.
12. Avoid unintentional starting. Be sure the trigger is in the OFF position when
not in use and before plugging in. Do not carry any tool with your nger on
the trigger, whether it is attached to an air source or not. Do not point the tool
towards yourself or anyone whether it contains brads or not.
13. Stay alert. Watch what you are doing. Use common sense. Do not operate any
tool when you are tired.
14. Check for damaged parts. Before using any tool, any part that appears
damaged should be carefully checked to determine that it will operate properly
and perform its intended function. Check for alignment and binding of moving
parts, any broken parts or mounting xtures, and any other condition that may
affect proper operation. Any part that is damaged should be properly repaired
or replaced by a qualied technician. Do not use the tool if the trigger does not
operate properly.
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 3
15. Guard against electric shock. Prevent body contact with grounded surfaces
such as pipes, radiators, ranges, and refrigerator enclosures.
16. Replacement parts and accessories. This product is to be repaired and
serviced only by a qualied technician. When this product is serviced, only
identical replacement parts should be used. Use of any other parts will void
the warranty. Only use accessories intended for use with this tool. Approved
accessories are available from Harbor Freight Tools.
17. Do not operate tool if under the inuence of alcohol or drugs. Read warning
labels if taking prescription medicine to determine if your judgement or reexes
are impaired while taking drugs. If there is any doubt, do not operate the tool.
18. Use proper size and type extension cord for an air compressor. If an
extension cord is required, it must be of the proper size and type to supply the
correct current to the compressor without heating up. Otherwise, the extension
cord could melt and catch re, or cause electrical damage to the compressor.
Check your air compressor’s manual for the appropriate size cord. It is also
possible that the use of an extension cord may cause your circuit breaker to trip
or your panel fuse to break. If this happens, either use the compressor without
an extension cord or nd a larger amperage circuit to use.
19. Maintenance. The maintenance outlined in the “Maintenance” section should be
performed regularly. For your safety, this product should be serviced or repaired
regularly only by a qualied technician.
20. Compressed air only. Use clean, dry, regulated, compressed air at between 70
and 120 PSI. Never use oxygen, carbon dioxide, combustible gases, or any
other bottled gases a power source for this tool.
21. Do not load brads with the trigger or safety depressed. Unintentional
ring may occur. Do not load brads when the air hose is connected to the
tool. Always assume the tool contains brads.
22. Disconnect air supply before loading the Nailer. Before reloading (or making
any adjustments to) the Nailer, make sure the compressed air is disconnected.
23. Fire brads into an appropriate work surface only. Do not attempt to re
brads into surfaces too hard to penetrate. Do not drive brads on top of other
brads, or at too steep an angle. Brads can ricochet, causing personal injury.
Never re the Nailer into the air, or point it toward yourself or another person.
Always wear ANSI approved impact safety goggles during use, maintenance, and
reloading.
24. Do not re brads too close to the edge of a workpiece. They may split the
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 4
workpiece and y free, causing personal injury.
25. Take caution, as some woods contain preservatives such as copper
chromium arsenate (CCA) which can be toxic. When nailing these materials
extra care should be taken to avoid inhalation and minimize skin contact.
WARNING: Some dust created by power sanding, sawing, grinding, drilling,
and other construction activities contain chemicals known (to the State of
California) to cause cancer, birth defects, or other reproductive harm.
Some examples of these chemicals are:
* Lead from lead-based paints,
* Crystalline silica from bricks, cement, and other masonry products,
* Arsenic and chromium from chemically treated lumber.
(California Health & Safety Code 25249.5, et seq.)
26. Stay within air pressure capacity. Never operate the Nailer above 120 PSI.
27. Hold tool away from head and body. During operation the Nailer may kick
back, causing injury.
28. Transport Nailer safely. Always disconnect air supply when moving the tool in
the workplace. Carry the tool by the handle to avoid contact with the trigger.
29. Avoid working alone. If an accident happens, an assistant can bring help.
30. Note: Performance of the compressor (if powered by line voltage) may vary
depending on variations in local line voltage. Extension cord usage may also
affect the tool performance.
31. WARNING: The warnings, cautions, 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.
UNPACKING
When unpacking, check to make sure that the product is intact and undamaged.
If any parts are missing or broken, please call Harbor Freight Tools at the number
shown on the cover of this manual as soon as possible.
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 5
OPERATION
For best service, you should incorporate a regulator and an in-line lter and oiler
as shown in the diagram below. Hoses, couplers, regulators, lters, and oilers
are all available from Harbor Freight Tools.
REGULATOR
AIR
COMPRESSOR
TO
AIR BRAD
FINISH
NAILER
OILERFILTER
TESTING THE FULL SEQUENTIAL SAFETY TRIP MECHANISM
WARNING: Even though the Nailer should be empty during this procedure,
ALWAYS point the Nailer at a piece of scrap wood when testing.
1. Make sure the tool is disconnected from its air supply.
2. Completely empty the Magazine Assembly (70) of Brads.
3. The Nailer should not re if the Safety (50A) is not depressed against the
workpiece.
4. Make sure the Trigger (36) and Safety (50A) move freely, without sticking.
Trigger (36)
Magazine Assembly
(70)
Safety (50A)
REV 08g
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 6
5. Connect the air supply to the tool at the Quick Connector (83). Set the regulator
at the recommended 70 to 120 operating PSI. Do not exceed the maximum
120 PSI.
6. Test the tool by depressing the Safety (50A) against the workpiece without
pulling the Trigger (36). The tool must not cycle (re). If it cycles (res), stop
immediately and have it repaired by a qualied service technician.
7. Hold the tool away or off the workpiece. The Safety (50A) of the tool should
return to its original position. Squeeze the Trigger (36). The tool should not
cycle (re). If the tool cycles (res), stop immediately and have it repaired by a
qualied service technician.
8. Depress the Safety (50A) against the workpiece and squeeze the Trigger (36).
The tool must cycle (re) only once. Release the Trigger and squeeze it
again. The tool must not cycle (re). With the Trigger held, carefully lift
the Nailer and press it against the workpiece again. The tool must not cycle
(re). If it fails to perform in the manner explained in bold, have it repaired by a
qualied service technician.
LOADING BRADS
WARNING: Always wear ANSI approved impact safety goggles when
reloading or performing any other maintenance on this tool. Other
people in the work area must also wear ANSI approved impact safety
goggles.
1. Slide the Pusher (63) back until it locks in place.
2. Place a full clip of the desired size Brads (3/4” to 2”) in the Magazine Assembly
(70). Up to 100 Brads may be loaded in the Magazine.
Magazine
Assembly (70)
Pusher (63)
REV 08g
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 7
3. While holding the Pusher (63) in place, press the Release (74) and slide the
Pusher forward.
OPERATING THE NAILER
1. Attach the Nailer to the air supply at the Quick Coupler (83). Start your
compressor and check the pressure, making sure it is set at the recommended
70-120 PSI.
Do not exceed the maximum 120 PSI.
2. Rotate the Exhaust Cover (2) so that the exhaust air blast will be directed
away from the operator.
3. To re, place the Safety (50A) of the Nailer on the workpiece. The Nailer
should not re if the Safety is not depressed. Once depressed, gently and briey
squeeze the Trigger (36) once; one Brad will be red.
4. Do not press the Safety (50A) against the workpiece with extra force. Allow
the tool to do the work. Always allow the tool to recoil off the work surface.
5. When nished using the Nailer, always disconnect the tool from its air supply.
Empty the Magazine Assembly (70) completely of Brads. Attempt to re the
Nailer into a piece of scrap wood to ensure it is disconnected and is incapable of
ring any Brads.
6. Make sure to store the Nailer in a clean, dry, safe location out of reach of
children.
Exhaust Cover
(2)
Trigger (36)
Magazine Assembly
(70)
Safety (50A)
REV 08g
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 8
Anytime any maintenance or repairs are done (including clearing jams), FIRST:
1. Disconnect the Nailer from its air supply.
2. Empty the Magazine Assembly (70) completely.
3. Attempt to re the Nailer into a piece of scrap wood to ensure that it is
disconected and is incapable of ring any Brads.
CLEARING JAMS
Use eye and ear protection when clearing jams. Always wear ANSI
approved impact safety goggles and appropriate hearing protection.
1. Occasionally, a Brad may become jammed in the ring mechanism of the
Nailer, making the tool inoperable.
2. To remove a jammed Brad, disconnect the Nailer from its air supply.
3. Slide the Pusher (63) back until it locks in place. Then, lean the Nailer back.
4. Remove all Brads from the Magazine Assembly (70).
5. While holding the Pusher (63) in place, press the Release (74) and slide the
Pusher forward all the way.
6. Attempt to re the Nailer into a piece of scrap wood to ensure it is disconnected
and is incapable of ring any Brads.
7. With the Driver Guide Cover (52A) facing away from you, push the Locker Spring
(92) and remove Driver Guide Cover.
8. Remove the jammed Brad.
9. Close the Driver Guide Cover (52A), making sure it locks in place.
10. Reload the Nailer with Brads. Then, reconnect the air supply hose to the tool.
11. Press the Safety (50A) against a piece of scrap wood, and test re the Nailer
several times while checking for proper operation. If the Nailer is properly ring,
you may continue using the tool. If the tool fails to perform properly, immediately
discontinue use and have the tool repaired by a qualied service technician.
12. When nished working, disconnect the air supply. Remove the Brads. Then,
store the Nailer in a clean, dry, safe location out of reach of children.
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 9
INSPECTION, MAINTENANCE, AND CLEANING
Anytime any maintenance or repairs are done, FIRST:
1. Disconnect the Nailer from its air supply.
2. Empty the Magazine Assembly (70) completely.
3. Attempt to re the Nailer into a piece of scrap wood to ensure that it is
disconnected and is incapable of ring any Brads.
1. Inspect the air supply Screen that is located in the End Cap (81) before each
use, and clean or replace as necessary. Dirt and water in the air supply Screen
are major causes of pneumatic tool wear. Use a lter in the compressed air
system for better performance and longer tool life. The lter must have adequate
ow capacity for the specic application.
2. Clean the external parts of the Nailer with a clean cloth and mild detergent or
non-ammable solvent. Then, dry.
3. Store the tool in a clean, dry, safe location out of reach of children.
4. CAUTION: All maintenance, service, or repairs not listed in this manual
are only to be attempted by a qualied service technician.
TROUBLESHOOTING
Problem Possible Solutions
Air leak near top of tool. 1. Tighten all screws on the cylinder cap.
2. Have a qualied service technician install a head valve piston set.
Tool does not work. 1. Make sure compressor is set between 70 to 120 PSI.
2. Check all air connections for leaks.
3. Make sure to fully depress the safety sleeve on the workpiece when attempting to re
a fastener.
4. Check for fastener jams. Clear the jam if necessary.
5. Have a qualied service technician check out the tool.
Sluggish operation. 1. Make sure the compressor is set between 70 to 120 PSI.
2. Check all air connections for leaks.
3. Have a qualied service technician install a head valve piston set.
Air leak near bottom of tool. 1. Tighten all screws.
2. Have a qualied service technician replace the bumper or head valve piston set.
Poor return after ring the tool. Have a qualied service technician clean the interior of the tool and/or replace the bumper
Weak driving force. 1. Make sure compressor is set between 70 to 120 PSI.
Poor feed. Have a qualied service technician clean the interior of the tool and/or lubricate the
Tool jamming too often. Have a qualied service technician clean the interior of the tool and/or lubricate the
or head valve piston set.
2. Check all air connections for leaks.
3. Have a qualied service technician clean the interior of the tool and/or replace the
bumper or head valve piston set.
magazine and install a new magazine spring.
magazine and install a new magazine spring.
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 10
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 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 RISKS 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.
PARTS LIST
Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.
NOTE:
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 11
ASSEMBLY DIAGRAM
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 12
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 veries 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 specic legal rights and you may also have other rights which
vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
SKU 94481 For technical questions, please call 1-800-444-3353 PAGE 13
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