Page 1
6 IN 1 AIR FRAMING NAILER
97510
93910
SET UP AND OPERATING INSTRUCTIONS
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. 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.
For technical questions or replacement parts, please call 1-800-444-3353.
Revised manual 08j
Page 2
SPECIFICATIONS
Air Inlet 1/4” NPT
Recommended Air Pressure 70-125 PSI*
Maximum Air Pressure 125 PSI
Nail Type Approx. 10 Gauge (0.113 & 0.131” Dia.) Clipped or Full Head Nails
2 - 3-1/2” Length
Safety Feature Full Sequential Actuation
Magazine Capacity 21° - 60 Qty., 28° and 34° - 100 Qty.
Air Consumption 8-12 CFM @ 90 PSI
* The air pressure setting must not exceed job site regulations/restrictions. The air
pressure setting must not exceed 90 PSI when being used with work pieces that
have a thickness of less than 1-3/4”.
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 tool performance.
SAVE THIS MANUAL
You will need the manual for the safety warnings and precautions, assembly instructions, operating and maintenance procedures, parts list and diagram. Keep your invoice
with this manual. Write the invoice number on the inside of the front cover. Keep the
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. Don’t 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 in-
tended. Do not modify this tool and do not use this tool for a purpose for which it was
not intended.
SKU 97510
93910
For technical questions, please call 1-800-444-3353.
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Page 3
6. Dress properly. Do not wear loose clothing or jewelry as they can be caught in moving
parts. Protective, electrically nonconductive clothes and nonskid footwear are recom-
mended when working. Wear restrictive hair covering to contain long hair.
7. Wear ANSI-approved impact safety goggles. 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.
8. Do not overreach. Keep proper footing and balance at all times. Do not reach over or across
running machines or air hoses.
9. Maintain tools with care. Keep tools clean for better and safer performance. Follow instruc-
tions for lubricating and changing accessories. Inspect tool cords and air hoses periodically
and, if damaged, have them repaired by an authorized 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 supply. Disconnect air hose when adding nails, during maintenance, and
when not in use.
11. Remove adjusting keys and wrenches. Check that keys and adjusting wrenches are re-
moved 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
fasteners 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 prop-
erly repaired or replaced by a qualied technician. Do not use the tool if any the trigger does
not operate properly.
15. Guard against electric shock. Prevent body contact with grounded surfaces such as pipes,
radiators, ranges, and refrigerator enclosures.
16. Replacement parts and accessories. When servicing, use only identical replacement parts.
Use of any other parts will void the warranty. Only use accessories intended for use with this
tool.
17. Do not operate tool if under the inuence of alcohol or drugs. Read warning labels if tak-
ing 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. 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. Oth-
erwise, the extension cord could melt and catch re, or cause electrical damage to the tool.
Check your air compressor’s manual for the appropriate size cord.
SKU 97510
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Page 4
19. Maintenance. For your safety, maintenance should be performed regularly by a qualied
technician.
20. Compressed air only. Never use combustible gas as a power source.
21. Do not load nails with the trigger or safety depressed. Unintentional ring
may occur. Do not load nails when the air hose is connected to the tool. Always
assume that the tool contains fasteners.
22. Fire fasteners into an appropriate work surface only. Do not attempt to re fasten-
ers into surfaces too hard to penetrate. Do not drive fasteners on top of other fasten-
ers, or at too steep of an angle. Fasteners can ricochet causing personal injury.
23. Do not re fasteners too close to the edge of a workpiece. They may split the
workpiece and y free, causing personal injury.
24. Disconnect air supply before loading Nailer. Before reloading (or making any ad-
justments) to the Nailer make sure that the compressed air is disconnected.
25. Take caution as some woods contain preservatives such as copper chromium
arsenate (CCA) which can be toxic. When stapling or 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 and cement or 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 125 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 and avoid contact with the trigger.
29. 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.
SKU 97510
93910
For technical questions, please call 1-800-444-3353.
Page 4
Page 5
UNPACKING
When unpacking, check to make sure the parts listed on page 11 are included. If any
parts are missing or broken, please call Harbor Freight Tools at the number on the cover of
this manual as soon as possible.
OPERATION
1. You will need to prepare a 1/4” air connector (sold separately) to connect to the air in-
let on the Nailer. First, wrap the 1/4” air connector (not included) with pipe thread seal
tape before threading it into the Air Inlet (90). Connect the 3/8” ID Air Source Hose to
the Nailer.
Note: If you are not using an automatic oiler system, before operation, add a few drops of
Pneumatic Tool Oil to the airline connection. Add a few drops more after each hour of
continual use.
2. Set the air pressure on your compressor to 70 to 125 PSI. Do not exceed the maxi-
mum air pressure of 125 PSI.
3. Check the air connection for leaks. Disconnect the Nailer from the air source hose.
SKU 97510
93910
For technical questions, please call 1-800-444-3353.
Page 5
Page 6
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 the power supply.
2. Completely empty the Magazine (76) of nails.
3. The Nailer should not re if the Safety (41) is not depressed against the workpiece.
4. Make sure the Trigger (47) and Safety (41) move freely, without sticking. Do not
use nailer if Trigger or Safety sticks.
5. Connect the air supply to the tool at the Air Inlet (90). Set the regulator at the recom-
mended 70 to 125 PSI.
6. Test the tool by depressing the Safety (41) against the workpiece without pulling the
Trigger (47). 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 of the workpiece. The Safety (41) of the tool should return to
its original position. Squeeze the Trigger (47). The tool should not cycle (re). If
the tool res, stop immediately and have it repaired by a qualied service technician.
8. Depress the Safety (41) against the workpiece and squeeze the Trigger (47). 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.
Warning! Disconnect the Nailer from the air compressor whenever loading.
ALWAYS WEAR ANSI APPROVED IMPACT SAFETY GOGGLES WHEN RELOAD-
ING OR DOING ANY OTHER MAINTENANCE ON THIS TOOL. Other people in the
work area must also wear ANSI-approved impact safety goggles.
LOADING NAILS
See FIGURE 2 on page 7.
1. Slide the Tab (70) back and the Latch (83) will hold it in place.
2. Load a stick of nails into the top slot, making sure the nail heads are facing up.
3. Be Careful. When you pull back on the Latch (83) to release the Tab (70), it will
spring forward with force. Keep your ngers clear when you release the Latch (83)
and slide the Tab (70) forward.
Note: The Nailer may not work if there are only two or three nails left in the tool. If there
are only a few nails remaining, simply load another strip of nails into the Magazine
behind the few remaining nails and the Nailer will be ready for further use.
SKU 97510
93910
For technical questions, please call 1-800-444-3353.
Page 6
Page 7
ILLUSTRATIONS
Warning! Disconnect the Nailer from the air compressor whenever loading.
Exhaust Cover (4)
Air Inlet (90)
Magazine (76)
FIGURE 1
Trigger (47)
FIGURE 3
FIGURE 2
Tab (71)
Latch (83)
Safety (41)
FIGURE 4
Angle Adjustment Holes
Hex Bolt
21o28
o
o
34
FIGURE 5
o
28
o
o
21
34
Plate (80)
Tab (71)
FIGURE 6
o
28o/34
Pin in
A
o
21
Position
Pin in
B
28o /34
Position
o
21
Adjustment Knob (81)
o
SKU 97510
93910
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Page 7
Page 8
OPERATION
Note: The Nailer may not work if there are only 2 or 3 nails left-see Note on page 6, bot-
tom.
1. Set the proper angle of the Nailer for your application (a three step process):
a. Pull back and engage the Tab (70), exposing three adjustment holes. Loosen the
hex bolt and slide it into the appropriate hole (21°, 28°, 34°). Retighten the hex bolt
securely, making sure it ts into the appropriate hole properly. See FIGURE 3. Gen-
tly release the Tab (70).
b. Remove the Adjustment Knob (81). See FIGURE 4. Move the Magazine (76) so that
the desired hole on the Plate (80) lines up with the nut on the Magazine (76). See
FIGURE 5. Replace and tighten the Adjustment Knob (81).
c. Inspect the Pin’s (34) location and compare it to FIGURE 6. If you are driving 21° an-
gle nails the Pin should be in the lower hole (position A). If you are driving 28° or 34°
angle nails the Pin should be in the upper hole (position B). If the Pin is in the wrong
position, pull the Pin (34) out (it is held in place with a rubber washer), reposition the
Guide Plate (35), and reinsert and secure the Pin (34). Before using the nailer, be
sure that the Pin is properly secured.
2. The driving depth of a nail can be adjusted in two ways. First, by increasing or de-
creasing air pressure (never to exceed the maximum of 125 PSI). Secondly, by
loosening the Screw (37) and adjusting the Bracket A (38). We recommend you ex-
periment in a scrap piece of material to determine how far to adjust the unit.
3. Attach the Nailer to the air supply at the Air Inlet (90). See FIGURE 1. Start your air
compressor and make sure it is set to between the recommended 70-125 PSI and not
over the maximum 125 PSI.
4. To re, place the Safety (41) of the Nailer on the workpiece. The Nailer should not
re if the Safety (41) is not depressed. Once depressed, quickly squeeze the Trigger
(47) once. Do not re repeatedly; nails could bounce off of one another causing
injury. We recommend you practice with a piece of scrap material.
5. The Exhaust Cover (4) may be turned to suit your preference. See FIGURE 1 on
page 7.
6. The Rubber Cover (42) provides a non-marring surface. If desired, the Rubber Cover
may be removed to expose the teeth on Safety (41). Doing so provides a nonslip sur-
face and can improve accuracy.
7. When nished, disconnect the Nailer from the air source.
SKU 97510
93910
For technical questions, please call 1-800-444-3353.
Page 8
Page 9
Anytime any maintenance or repairs are done (including clearing jams), FIRST:
1. Disconnect the Nailer from the air hose.
2. Empty the Magazine (76) 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 nails.
4. Always leave the Magazine (76) open during maintenance. The Magazine is
spring-loaded and may cause parts or a nail to y out of the Nailer.
CLEARING JAMS
1. Disconnect tool from air hose. Always re the trigger repeatedly to make sure all of
the air is expended from the Nailer.
2. If a nail is jammed in the discharge area, simply
remove it with pliers.
Figure 7
3. If a nail is jammed in the magazine, pull the Tab
(70) all the way back to the engaged position. Using
a screwdriver, attempt to release the jammed nail
by probing either or both of the two openings in the
magazine (see photo at right) to release the nail.
Pull out the jammed nail and the remainder of the
nail strip that is still in the magazine.
4. Dispose of the remaining nail strip; it may be bent
or damaged in some other way. Reload the maga-
Probe in these areas with a
screwdriver to release jammed nails.
zine with a new nail strip.
5. Be careful. When you pull back on the Latch (83) to release the Tab (70), it will
spring forward with force. Keep your ngers clear when you release the Latch (83)
and slide the Tab (70) forward.
6. If you are unable to clear the nail jam using the method prescribed above, the
tool should be taken to a qualied service technician for proper servicing.
SKU 97510
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Page 9
Page 10
TROUBLESHOOTING
Any internal repair should be performed by a qualied service technician.
Symptom Cause Solution
Top of tool or Trigger (47)
leaks air, sluggish operation, or will not operate
Bottom of tool leaks air 1. Loose Screws,
Frequent Jamming Nail-type does not correspond
Tool double-res All 3 adjustment locations are
Adjustment pin (33, 34)
will not remove
1. Loose Screws,
2. Worn or damaged O-rings or
seals
3. Inadequate air supply,
4. Inadequate lubrication,
5. Worn/damaged O-rings or
seals
2. Worn/damaged O-rings,
seals.
with the adjustment angle
setting.
not set at the same angle (see
Figures 1-6 on page 7.)
The rubber O-ring at the tip of
the pin (Fig. 6, page 7) is tight-
tted.
1. Verify screws are tight,
2. Check/replace O-rings or seals
3. Use a compressor that delivers the proper
CFM,
4. Add air tool oil (not incl.),
5. Check/replace O-rings or seals
1. Verify screws are tight,
2. Check/replace O-rings, seals.
Ensure nail-type loaded corresponds to the
adjustment angle setting. Nail types are as
follows:
21° Plastic Collated Full Head Nails
28° Paper Collated Clip Head Nails
34° Paper Collated Clip Head Nails
Set all 3 adjustment locations at the same
angle, whether its 21°, 28°, or 34°.
Remove rubber O-ring with a small athead
screwdriver. The upper hole corresponds
to 28°/34° and the lower hole to 21°. Make
adjustment and secure pin with rubber O-ring.
MAINTENANCE
Disconnect the Nailer from the air source hose before attempting any maintenance.
1. Wipe tool clean with a lint free cloth and inspect it for damage. Do not use the tool if
you nd damage. Have it repaired by an authorized service technician.
2. Always test the Full Sequential Safety mechanism before each use (see page 6).
3. Keep all screws tight. Loose screws may damage the tool and cause personal injury.
4. Make sure that Base (29) is clear of all dirt or debris.
5. Make sure the Trigger (47) and Safety (41) move freely, without sticking. Do not
use nailer if Trigger or Safety sticks.
REV 08j
SKU 97510
93910
For technical questions, please call 1-800-444-3353.
Page 10
Page 11
PARTS LIST
Part Description
1 Screw
2 Spring Washer
3 Bushing
4 Exhaust Cover
5 Seal
6 Screw
7 Spring Washer
8 Cylinder Cap
9 Gasket
10 O-ring
11 O-ring
12 Spring
13 Valve
14 Valve Seal
15 O-ring
16 Valve Seat
17 Screw
18 Bushing
19 Washer
20 O-ring
21 Piston Assembly
22 O-ring
23 Cylinder
24 O-ring
25 Bumper A
26 Bumper B
27 Body
28 O-ring
29 Base
30 Spring Washer
Part Description
31 Screw
32 Washer
33 Pin
34 Pin
35 Guide Plate
36 Spring
37 Screw
38 Bracket A
39 Washer
40 Screw
41 Safety (Bracket B)
42 Rubber Cover
43 Washer
44 Pin
45 Safe Guide
46 Trigger Spring
47 Trigger
48 Seal
49 Trigger Valve Head
50 Spring
51 O-ring
52 Trigger Valve Stem
53 O-ring
54 Trigger Valve Guide
55 Spring Pin
56 Screw
57 Spring Washer
58 Nut
59 Washer
60 Turn Plate A
Part Description
61 Bushing
62 Screw
63 Washer
64 Turn Plate B
65 Bushing
66 Coil Spring
67 Coil Spring Base
68 Pin
69 Screw
70 Tab
71 Feeder Shoe
72 Hex Bolt
73 Washer
75 Screw
76 Magazine
77 Screw
78 Rail
79 Nut
80 Plate
81 Adjustment Knob
82 Support
83 Latch
84 Torsion Spring
85 Bushing
86 Nut
87 Grip Sleeve
88 O-ring
89 End Cap
90 Air Inlet
91 Washer
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS
MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR 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.
NOTE: Some parts are listed and shown for illustration purposes only and are not available
individually as replacement parts.
SKU 97510
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Page 11
Page 12
ASSEMBLY DRAWING
SKU 97510
93910
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Page 12
Page 13
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 97510
93910
For technical questions, please call 1-800-444-3353.
Page 13
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