Harbor Freight Tools Nail Gun 97525 User Manual

AIR NAILER/STAPLER  
2-IN-1 KIT  
Model 97525  
ASSEMBLY AND OPERATING INSTRUCTIONS  
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 con-  
tained 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 10f  
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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 filings 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 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 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 keys and wrenches. Check that keys and 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 finger 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 fixtures; and any other condition that may affect proper operation. Any  
part that is damaged should be properly repaired or replaced by a qualified technician.  
Do not use the tool if 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. This product is to be repaired and serviced  
only by a qualified 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 influence of alcohol or drugs. Read warning  
labels if taking prescription medicine to determine if your judgement or reflexes 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  
SKU 97525  
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heating up. Otherwise, the extension cord could melt and catch fire, or cause electrical  
damage to the tool. 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 find 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 qualified 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  
firing may occur. Do not load nails when the air hose is connected to the  
tool. Always assume that the tool contains fasteners.  
22. Disconnect air supply before loading Nailer. Before reloading (or making any  
adjustments to) the Nailer make sure that the compressed air is disconnected.  
23. Fire fasteners into an appropriate work surface only. Do not attempt to fire  
fasteners into surfaces too hard to penetrate. Do not drive fasteners on top of other  
fasteners, or at too steep of an angle. Fasteners can ricochet causing personal injury.  
Never fire the Nailer into the air, or point it toward yourself or another person. Always  
wear ANSI approved safety goggles during use, maintenance, and reloading.  
24. Do not fire fasteners too close to the edge of a workpiece. They may split the  
workpiece and fly free, causing personal injury.  
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.  
26. 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. )  
27. Stay within air pressure capacity. Never operate the Nailer above 100 PSI.  
28. Hold tool away from head and body. During operation the Nailer may kick back  
causing injury.  
29. 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.  
30. 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 97525  
For technical questions, please call 1-800-444-3353.  
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Unpacking  
When unpacking, check to make sure the parts listed on page 9 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  
1/4”-18 NPT  
For best service you should incorporate an oiler, regulator, and inline filter, as shown in the  
diagram above. Hoses, couplers, oilers, regulators, and filters are all available at Harbor  
Freight Tools.  
1.  
You will need to prepare a 1/4” air connector (sold separately) to connect to the air inlet  
on the Nailer/Stapler First, wrap the 1/4” air connector (not included) with pipe thread  
seal tape before connecting to a 3/8” ID Air Source Hose (not included). Connect the  
Air Source Hose to the Air Plug (77).  
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 60-100 PSI. Do not exceed the maximum  
air pressure of 100 PSI.  
3.  
Check the air connection for leaks.  
Note: The amount of air pressure effects how deep the nails/staples will be driven. It  
is suggested that you experiment on scrap material.  
4.  
Check the air connection for leaks and disconnect the Nailer/Stapler.  
Testing The Single Sequential Safety Trip Mechanism  
Warning: Even though the nailer should be empty during this procedure, ALWAYS point  
the nailer/Stapler at a piece of scrap wood when testing.  
1.  
The Nailer/Stapler should not fire if the nose is not depressed against the workpiece.  
This tool has a contact safety tip mechanism, which is designed to prevent inadvertent  
firing. The tool will only fire if the Safety (42) is resting on the workpiece prior to pulling  
the Trigger (38).  
2.  
Make sure the tool is disconnected from the air supply.  
SKU 97525  
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Operation - Testing The Single Sequential Safety Trip Mechanism (continued)  
3.  
4.  
Empty the magazine of nails or staples.  
Check that the Trigger (38) and the Safety (42) on the nose of the tool, move freely,  
without sticking.  
5.  
6.  
Connect the air supply to the tool at the Air Plug (77) and set at the recommended 60-  
100 PSI, and not over the maximum 100 PSI.  
Test the tool by depressing the Safety (42) on the nose of the tool against the workpiece  
without pulling the Trigger (38). The tool must not cycle (fire). If it cycles (fires), stop  
immediately and take the tool to a qualified service technician for repair.  
7.  
8.  
Hold the tool away, or off of the workpiece. The Safety (42) or nose of the tool should  
return to its original position. Squeeze the Trigger (38). The tool should not cycle (fire).  
If it cycles (fires), stop immediately and take the tool to a qualified service technician.  
Depress the Safety (42) against the workpiece and squeeze the Trigger (38). The tool  
must cycle (fire) once only. Release the trigger and squeeze it again. The tool must  
cycle (fire) once only. With the Trigger held, carefully lift the nailer and press it against  
the workpiece again. The tool must not cycle (fire). If it fails to act in the manner  
explained in bold, have it repaired by a qualified service technician.  
Loading Nails or Staples  
ALWAYS WEAR ANSI APPROVED IMPACT SAFETY GOGGLES WHEN  
RELOADING OR DOING ANY OTHER MAINTENANCE ON THIS TOOL. Other  
people in the work area must also wear ANSI approved impact safety goggles.  
Warning! Make sure the Nailer/Stapler is not attached to the air hose whenever loading  
the tool.  
1.  
Depress the Latch (67) and pull back on the Magazine Tail Cover (72), opening Magazine  
A (61).  
2.  
Insert the brad nails into the Magazine, letting the pointed end ride on the rail of Magazine  
B (53). If loading staples, fit the crown of the staples so they fit over, and ride on the rail  
of the Magazine B (53).  
3.  
After the nails or staples reach the nose of the tool, close Magazine A (61).  
Note: The window gauge on MagazineA(61) lets you know how many nails or staples remain.  
Operating the Stapler/Nailer  
1.  
Attach the Nailer/Stapler to the air supply at the Air Plug (77). Start your compressor  
and check the pressure making sure it is set at the recommended 60-100 PSI and not  
over the maximum 100 PSI.  
2.  
To re, place the nose of the Nailer/Stapler on the workpiece. The Nailer/Stapler should  
not fire if the Safety (42) is not depressed. Once depressed, gently and briefly squeeze  
the Trigger (38) once. Do not fire repeatedly; nails or staples could bounce off of one  
another, damaging the work piece or causing PERSONAL INJURY.  
SKU 97525  
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Anytime any maintenance or repairs are done (including clearing jams), FIRST:  
1.  
2.  
3.  
Disconnect the Nailer/Stapler from the air hose.  
Empty Magazine A (61) completely.  
Attempt to fire the Nailer/Stapler into a piece of scrap wood to ensure that it is  
disconnected and is incapable of firing any staples.  
4.  
Always leave MagazineA(61) open during maintenance. The Magazine is spring-  
loaded and may cause parts or a fastener to fly out of the Nailer/Stapler.  
Clearing Jams  
FIGURE 1  
1.  
Disconnect tool from air hose, empty Magazine A  
(61) of fasteners, release any built-up air pressure,  
and leave the magazine open, as explained above.  
2.  
While doing this step and the next 2 steps, hold the  
Nailer/Stapler pointed away from you and any other  
people or fragile objects - see Figure 1. Remove all  
three Safety Cover Bolts (48) on the Safety Cover  
FIGURE 2  
(47) - see Figure 2.  
3.  
4.  
Lift the Safety Cover (47) off the top of the Nailer/  
Stapler - see Figure 3.  
Carefully slide the Driver Cover (50) off around the  
Safety (42). Note the position of the tab on the Driver  
Cover (50). Remove the jammed fastener; pliers  
may be necessary to remove a stuck fastener.  
Safety  
Cover (47)  
Safety Cover  
Bolts (48)  
5.  
6.  
Inspect the Driver (17A) for bends or breakage. If  
it is damaged, do not use the tool until it is repaired  
by a qualified technician.  
Safety  
(42)  
FIGURE 3  
Lightly oil the Driver (17A) and replace the Driver  
Cover (50) with the tab in the Cover facing the Driver  
Guide (52). Replace the Safety Cover (47), being  
careful to line up the bolt holes and fit the Safety  
(42) into the slot. Replace and securely tighten all  
of the Safety Cover Bolts (48). Make sure that the  
Safety (42) moves without sticking.  
Safety  
Cover (47)  
7.  
8.  
9.  
Reload the Nailer/Stapler.  
Reconnect the Nailer/Stapler to the air hose.  
tab  
Driver  
Cover (50)  
Safety  
Cover (47)  
Press the Safety (42) of the Nailer/Stapler against  
an appropriate piece of scrap wood.  
10. Test fire the Nailer/Stapler several times, checking  
for proper operation.  
11. Disconnect the Nailer/Stapler, remove the fasteners,  
and store the Nailer/Stapler in a location out of  
children’s reach.  
FIGURE 4  
SKU 97525  
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Anytime any maintenance or repairs are done, FIRST:  
Disconnect the Nailer/Stapler from the air hose.  
Empty Magazine A (61) completely.  
1.  
2.  
3.  
Attempt to fire the Nailer/Stapler into a piece of scrap wood to ensure that it is  
disconnected and is incapable of firing any staples.  
4.  
Always leave MagazineA(61) open during maintenance. The Magazine is spring-  
loaded and may cause parts or a fastener to fly out of the Nailer/Stapler.  
Troubleshooting Guide  
Stop using the Nailer/Stapler immediately if any of the following problems occur.  
Repairs and part replacements must be done only by a qualified technician.  
Allproceduresinboldonthischartaretobeattemptedonlybeaqualifiedtechnician.  
Problem  
Likely Cause  
Solution  
O-Rings in Valve Body (92) are  
damaged.  
Replace O-Rings and check contact  
trip operation.  
Air leaking at Trigger area.  
1. Loose screws in Housing.  
2. Damaged O-Rings/Bumper (85). 2. Replace O-Rings or Bumper (85).  
1. Tighten screws.  
Air leaking between  
Housing and Nose.  
1. Loose screws.  
2. Damaged Gasket (9).  
1. Tighten Screws.  
2. Replace Gasket (9).  
Air leaking between  
Housing and Cap (4).  
1. Insufficient oil.  
2. Broken Spring in Cylinder Cap  
(4).  
3. Exhaust is blocked.  
1. Worn Bumper (85) or damaged  
Pusher Spring.  
1. Lubricate as instructed.  
2. Replace Compression Spring (8).  
3. Clean Cap (4) or replace damaged  
parts.  
1. Replace Bumper (85) or Pusher  
Spring.  
Runs slowly or has power  
loss.  
2. Dirt in Driver Guide (52).  
3. Inadequate airflow to Nailer/  
Stapler.  
4. Worn or dry O-Ring on Piston.  
5. Damaged O-Ring on Trigger  
Valve.  
2. Clean channels in Driver Guide  
(52).  
3. Check hose and compressor  
fittings.  
4. Replace or lubricate O-Rings.  
5. Replace O-Rings.  
Tool skips a nail.  
6. Cap Gasket (9) leaking.  
1. Guide on driver is worn.  
2. Fasteners are wrong size or  
damaged.  
6. Replace Gasket (9).  
1. Replace Guide.  
2. Use correct, undamaged Fasteners.  
3. Tighten screws.  
Fasteners are jammed.  
3. Magazine or Nose screws are  
loose.  
4. Replace Driver (17A).  
4. Driver (17A) is damaged.  
1. Rounded Driver (17A) slipping  
off fastener crown.  
2. Lack of air pressure.  
3. Slow cycling and loss of power.  
1. Replace Driver (17A).  
2. Supply correct pressure (60-100  
PSI).  
3. Check Compression Spring (8) for  
broken coils or reduced length.  
Make sure Exhaust is clear.  
Replace either or both parts.  
Nailer/Stapler will not drive  
down tight.  
Worn Bumper (85) and/or Piston  
Spacer.  
Blade driving fastener too  
deeply.  
Allproceduresinboldonthischartaretobeattemptedonlybeaqualifiedtechnician.  
SKU 97525  
For technical questions, please call 1-800-444-3353.  
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Maintenance  
Warning! Always disconnect the tool from the air compressor and then empty the magazine  
of nails or staples before attempting to inspect or perform maintenance to the Nailer/  
Stapler.  
1.  
2.  
Inspect all of the nuts and screws and make sure they are securely fastened.  
Periodically lubricate the driving mechanism and magazine with a light oil. Wipe down  
with a clean cloth. Never use gasoline or flammable solvents to clean the tool.  
3.  
Inspect your air compressor according to manufacturer’s instructions.  
Warning! If you detect any air leaks, power loss, the Nailer/Stapler skips driving, drives too  
deep, or not deep enough, take the Nailer/Stapler to a qualified service technician.  
Parts List  
Part  
1
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
16  
Description  
Exhaust Deflector  
Hex. Bolt  
Head Cap  
Seal  
Internal Lining  
O-Ring  
Compression Spring  
Gasket  
O-Ring  
Head Valve Piston  
O-Ring  
O-Ring  
O-Ring  
Part  
44  
45  
46  
47  
48  
49  
50  
51  
Description  
Hex Bolt  
Stopper  
Compression Spring  
Safety Cover  
Safety Cover Bolt  
Spacer  
Driver Cover  
Hex. Bolt  
Part  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
92  
93  
Description  
Cylinder Pin  
Magazine Tail Cover  
Lock Nut  
Hand Grip  
O-ring  
End Cap  
Air Plug  
Collar  
Fixed Ring  
O-Ring  
Ling Ring  
O-Ring  
Cylinder  
Ling Ring  
Bumper  
52  
Driver Guide  
53A Magazine B  
54  
55  
56  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
Steel Bar  
Pusher Unit  
Spring Holder  
Spring  
Spring Washer  
Hex Bolt  
Magazine A  
Magazine Bracket  
Hex Bolt  
Hex Bolt  
Lock Nut  
Retainer Pin  
Latch  
Spring  
O-Ring  
17A Piston & Driver  
25  
26  
34  
36  
37  
38  
39  
40  
41  
42  
43  
Body  
Nozzle  
Spring  
Spring Pin  
E-Ring  
Trigger  
Pin  
Safety Guide  
Spring Pin  
Safety  
Seal  
Trigger Valve Upper  
Spring  
O-Ring  
Trigger Plunger  
Trigger Plate  
Trigger Valve Lower  
Trigger Plate  
O-Ring  
Hex Bolt  
Non-Marking Tip  
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.  
SKU 97525  
For technical questions, please call 1-800-444-3353.  
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NOTE: Some parts are listed and shown for illustration purposes only and are  
not available individually as replacement parts.  
SKU 97525  
For technical questions, please call 1-800-444-3353.  
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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 pur-  
chase. 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, im-  
proper 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 OTH-  
ER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MER-  
CHANTABILITY AND FITNESS.  
To take advantage of this warranty, the product or part must be returned to us with transpor-  
tation 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 can-  
not 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.  
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353  
SKU 97525  
For technical questions, please call 1-800-444-3353.  
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