Harbor Freight Tools Nail Gun 68024 User Manual

COIL ROOFING NAILER  
Model 68024  
SET UP AND OPERATING INSTRUCTIONS  
Read and understand tool labels and  
manual. Failure to follow warnings could  
result in DEATH or SERIOUS INJURY.  
SAVE THIS MANUAL.  
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Copyright 2010 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.  
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WARNING – When using tools, basic  
precautions should always be followed,  
including the following:  
c. Avoid unintentional starting. Be  
sure the trigger is released before  
connecting to the air supply. Do not  
carry the tool with your finger on the  
trigger or connect the tool to the air  
supply with the trigger pressed.  
General  
a. To reduce the risks of electric shock,  
fire, and injury to persons, read all the  
instructions before using the tool.  
d. Do not overreach. Keep proper  
footing and balance at all times.  
Proper footing and balance  
enables better control of the tool in  
unexpected situations.  
Work area  
a. Keep the work area clean and well  
lighted. Cluttered benches and dark  
areas increase the risks of electric  
shock, fire, and injury to persons.  
e.  
Use safety equipment. A  
dust mask, non-skid safety  
shoes and a hard hat must be  
used for the applicable  
b. Do not operate the tool in explosive  
atmospheres, such as in the presence  
of flammable liquids, gases, or dust.  
The tool is able to create sparks resulting  
in the ignition of the dust or fumes.  
conditions. Wear heavy-duty work  
gloves during use.  
f.  
Always wear eye protection.  
Wear ANSI-approved safety  
goggles with side shields.  
c. Keep bystanders, children, and  
visitors away while operating the tool.  
Distractions are able to result in the loss  
of control of the tool.  
g.  
Always wear hearing  
protection when using the  
tool. Prolonged exposure to  
high intensity noise is able to  
cause hearing loss.  
Personal safety  
a. Stay alert. Watch what you are  
doing and use common sense when  
operating the tool. Do not use the  
tool while tired or under the influence  
of drugs, alcohol, or medication. A  
moment of inattention while operating  
the tool increases the risk of injury  
to persons.  
h. Do not attach hose or tool to your  
body. Attach hose to structure to reduce  
risk of loss of balance if hose shifts.  
i.  
Always assume that the tool contains  
fasteners. Do not point the tool toward  
yourself or anyone whether it contains  
fasteners or not.  
j.  
WARNING – Do not fire fastener on  
top of another fastener. This is able to  
cause the fastener to be deflected and  
hit someone, or cause the tool to react  
and result in a risk of injury to persons.  
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.  
k. WARNING – Remove finger from the  
trigger when not driving fasteners.  
Never carry the tool with finger on  
trigger, the tool is able to fire a fastener.  
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specific tool model, increases the risk of  
injury to persons.  
Tool use and care  
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 can lead to loss of control.  
i.  
Use only those fasteners listed in the  
Specifications chart of this manual.  
Fasteners not identified for use with this  
tool by the tool manufacturer are able to  
result in a risk of injury to persons or tool  
damage when used in this tool.  
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.  
Service  
a. Tool service must be performed only  
c. Do not use tool if trigger does not turn  
tool on or off. Any tool that cannot be  
controlled with the trigger is dangerous  
and must not be used until repaired.  
by qualified repair personnel.  
b. When servicing a tool, use only  
identical replacement parts. Use only  
authorized parts.  
d. Disconnect tool from air source  
before making adjustments, doing  
tool maintenance, clearing jams,  
touching safety nosepiece, leaving  
work area, loading, or unloading the  
tool. Such precautionary measures  
reduce the risk of injury to persons.  
c. Use only the lubricants supplied  
with the tool or specified by  
the manufacturer.  
Air source  
a.  
Never connect to an air  
source that is capable of  
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.  
exceeding 200 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.  
f.  
Maintain the tool with care. A properly  
maintained tool reduces the risk of  
binding and is easier to control.  
g. Check for misalignment or binding  
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.  
b. Never use oxygen, carbon dioxide,  
combustible gases or any bottled gas  
as an air source for the tool. Such  
gases are capable of explosion and  
serious injury to persons.  
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  
SAVE THESE  
INSTRUCTIONS.  
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d. Moving the tool to a new location.  
Specific Safety Instructions  
13. Do not make any modifications to tool.  
14. Refer to the tool maintenance  
instructions for detailed information on  
the proper maintenance of the tool.  
1. Operators and others in work area  
MUST wear ANSI‑approved safety  
goggles with side shields during use.  
The employer is responsible to enforce  
the use of eye protection by the operator  
and others in the work area.  
15. 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.  
2. Keep fingers away from trigger  
when not driving fasteners to avoid  
accidental firing.  
3. Choice of triggering method is  
important. Check manual for  
triggering options.  
16. Do not fire fasteners too close to edge of  
a workpiece. They may split workpiece  
and fly free, causing personal injury.  
4. Always assume tool contains fasteners.  
17. Keep clear of workpiece near the area  
being fastened. Fasteners may bend  
sideways during firing, causing them  
to exit the workpiece at an unexpected  
point, causing personal injury.  
5. Do not point tool toward yourself or  
anyone whether it contains fasteners  
or not.  
6. Do not actuate the tool unless the tool is  
placed firmly against the workpiece.  
18. Transport tool safely. Always disconnect  
air supply when moving tool. Carry tool  
by handle and avoid contact with trigger.  
7. Respect the tool as a working implement.  
8. No horseplay. This tool is not a toy and  
can be deadly if misused.  
19. Hold tool away from head and body.  
During operation the tool may kick back  
causing injury.  
9. Do not load tool with fasteners when any  
one of the operating controls, such as  
20. Do not fire fasteners into a workpiece  
that has people, utility lines, or other  
objects behind or inside it.  
Trigger or Safety Nosepiece, is activated.  
10. Do not remove, tamper with, or otherwise  
cause the tool operating controls to  
become inoperable.  
21. Keep balance while using this tool.  
Keep area below clear if working in  
an elevated location, and secure air  
hose to prevent falls from bystanders  
accidentally pulling on it.  
11. Do not operate if any portion of operating  
controls is inoperable, disconnected,  
altered, or not working properly.  
12. Disconnect the tool from the air  
supply when:  
22. Obey the manual for the air compressor  
used to power this tool.  
a. Unattended.  
23. Install in-line shutoff valve to allow  
immediate control over air supply in an  
emergency, even if a hose is ruptured.  
b. Performing any maintenance or repair.  
c. Clearing a jam.  
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24. Do not engrave or stamp anything into  
the housing to avoid weakening it.  
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  
25. WARNING: Some dust created by  
power sanding, sawing, grinding,  
drilling, and other construction activities,  
contains 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  
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.  
• Crystalline silica from bricks and  
cement or other masonry products  
• Arsenic and chromium from chemically  
treated lumber  
Your risk from these exposures varies,  
depending on how often you do this type 2. Do not smoke during use. Nicotine  
of work. To reduce your exposure to  
these chemicals: work in a well ventilated  
area, and work with approved safety  
equipment, such as those dust masks  
that are specially designed to filter out  
microscopic particles. (California Health  
& Safety Code § 25249.5, et seq.)  
WARNING: The brass components of  
this product contain lead, a chemical  
known to the State of California to cause  
birth defects (or other reproductive  
harm). (California Health & Safety code  
§ 25249.5, et seq.)  
reduces the blood supply to the hands  
and fingers, increasing the risk of  
vibration-related injury.  
3. Wear suitable gloves to reduce the  
vibration effects on the user.  
4. Use tools with the lowest vibration  
when there is a choice between  
different processes.  
5. Include vibration-free periods each day  
of work.  
6. Grip tool as lightly as possible (while still  
keeping safe control of it). Let the tool  
do the work.  
26. 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.  
7. To reduce vibration, maintain tool as  
explained in this manual. If abnormal  
vibration occurs, stop immediately.  
SAVE THESE  
INSTRUCTIONS.  
Vibration Precautions  
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:  
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Initial Tool Setup/Assembly
Functional Description  
Specifications  
Read the ENTIRE IMPORTANT  
SAFETY INFORMATION  
Max. Air Pressure 120 PSI  
section at the beginning of this  
manual including all text under  
subheadings therein before set up  
or use of this product.  
Air Inlet  
1/4” -18 NPT  
Air Consumption 1 CFM @ 90 PSI  
Fastener  
Capacity  
11 Gauge, 3/4” to 1-3/4” Wire-  
Collated Roofing Nails  
Magazine  
Capacity  
Note: For additional information regarding the  
parts listed in the following pages, refer  
to the Assembly Diagram near the end of  
this manual.  
120  
Components and Controls  
Unpacking  
Mode Switch (41)  
Trigger (44)  
Air  
Inlet  
(100)  
When unpacking, make sure that the  
item is intact and undamaged. If any parts  
are missing or broken, please call Harbor  
Freight Tools at 1-800-444-3353 as soon as  
possible.  
Depth Knob  
(52)  
This air tool may be shipped with a  
protective plug covering the air inlet.  
Remove this plug before set up.  
Air Supply  
TO PREVENT  
EXPLOSION:  
Roofing  
Gauge (82)  
Safety (37)  
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.  
Safety Nosepiece - Also called the workpiece  
contact, the Safety Nosepiece helps  
prevent the tool from firing unless it is  
pressed against an object.  
1. Connect a regulator valve, an in-line shut  
off valve, and 1/4” NPT air hose (all sold  
separately) to the Quick Coupler. Use  
thread tape for all threaded connections.  
The air hose must be long enough to  
reach the work area with enough extra  
length to allow free movement while  
working. An in‑line shutoff ball valve  
is an important safety device because  
it controls the air supply even if the  
Depth Knob - This controls the nail depth.  
Push the Knob to the left for shorter nails  
(or to fire nails less deep). Push the  
Knob to the right for longer nails (or for  
deeper depths).  
Roofing Gauge - This can be adjusted to  
guide the shingle spacing. Loosen the  
Cap Screw, adjust Gauge as needed,  
then retighten the Cap Screw.  
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Air Tool & Spray Gun Portable Setup  
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Air Tool & Spray Gun Stationary Setup  
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air hose is ruptured. The shutoff  
valve should be a ball valve because  
it can be closed quickly. See pages 8  
and 9 for Air Tool Setup procedures.  
the air output gauge to set the right  
pressure range.  
8. 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: If an automatic oiler system is not  
used, add a few drops of Pneumatic  
Tool Oil into the airline connection before  
operation. Add a few more drops after  
each hour of continual use.  
9. Inspect the air connections for leaks.  
Repair any leaks found.  
2. Attach an air hose to the compressor’s  
air outlet. Connect the air hose to the  
air inlet of the tool. Please note: a  
quick coupler will be needed for  
proper connection.  
10. If the tool will not be used at this time,  
turn off and detach the air supply, safely  
discharge any residual air pressure,  
and release the trigger to prevent  
accidental operation.  
WARNING! TO PREVENT SERIOUS  
INJURY FROM ACCIDENTAL  
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  
discharge the tool in a safe fashion after  
disconnecting to ensure that the tool is  
disconnected and unpowered.  
OPERATION: Do not install a quick  
coupler on the tool. A coupler contains  
an air valve that will allow the air tool to  
retain pressure and operate accidentally  
after the air supply is disconnected.  
Note: Air flow, and therefore tool  
performance, can be hindered by  
undersized air supply components.  
Nail Penetration Depth Adjustment  
1. With the tool connected to its air supply  
and with the nails loaded, test fire on a  
scrap material (similar to the workpiece)  
and note the depth of nail’s penetration.  
3. The air hose must be long enough  
to reach the work area with enough  
extra length to allow free movement  
while working.  
2. To adjust nail depth penetration, rotate  
the Depth Knob (52). Turn the Depth  
Knob to the left (+) for deeper nail  
penetration and to the right (-) for more  
shallow penetration.  
4. Release the tool’s Trigger (44).  
5. Close the in-line safety valve between  
the compressor and the tool.  
6. Turn on the air compressor according to  
the manufacturer’s directions and allow it  
to build up pressure until it cycles off.  
3. CAUTION! When working with asphalt  
shingles in particular, the nail head  
should not sink below the top face of  
the shingle.  
7. 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  
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The tool should only fire if the Safety  
Nosepiece is pressed against the workpiece  
and the trigger is pulled. It should fire again  
if the trigger is released and pulled OR  
if the safety is lifted and pressed against  
the workpiece again. The Tool should not  
fire if the Safety Nosepiece is not pressed  
against an object. Contact safety trip /  
bump fire should only be enabled and  
used by skilled operators who are aware  
of the hazards and use proper, safe  
work practices.  
OperatingInstructions
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.  
Inspect tool before use, looking  
for damaged, loose, and missing  
parts. If any problems are found,  
do not use tool until repaired.  
Contact Safety Trip (Bump Fire)  
Mechanism Testing Procedure  
Work Piece and Work Area Set Up  
TO PREVENT  
SERIOUS INJURY  
FROM ACCIDENTAL  
OPERATION:  
Empty the tool before this  
procedure. Point the tool at a  
piece of scrap wood  
when testing.  
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.  
2. Route the air hose along a safe path to  
reach the work area without creating a  
tripping hazard or exposing the air hose  
to possible damage. The air hose must  
be long enough to reach the work area  
with enough extra length to allow free  
movement while working.  
1. Disconnect the tool from the air supply.  
2. Empty the magazine of fasteners.  
3. Check that the Trigger and the Safety  
Nosepiece move freely, without sticking.  
3. Secure loose workpieces using a vise  
or clamps (not included) to prevent  
movement while working.  
4. Connect the air supply to the tool and  
set within the Operating Air Pressure  
indicated on the Specification chart.  
4. There must not be hazardous objects  
(such as utility lines or foreign objects)  
nearby that will present a hazard  
while working.  
5. Test the tool by pressing the Safety  
Nosepiece against the workpiece  
without pulling the Trigger. The tool  
must not cycle (fire). If it cycles (fires),  
stop immediately and take the tool to a  
qualified service technician for repair.  
Contact Safety Trip (Bump Fire)  
Mechanism Definition  
When selected, the Bump Fire  
6. Hold the tool away, or off of the  
workpiece. The Safety Nosepiece  
should return to its original position.  
Squeeze the Trigger. The tool must  
not cycle (fire). If it cycles (fires),  
mechanism allows for rapid firing. To set the  
Nailer in Bump Fire mode, turn the Mode  
Switch (41) to the Bump Fire Position (as  
indicated by the two bump fire symbols).  
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stop immediately and take the tool to a  
qualified service technician.  
3. Check that the Trigger and the Safety  
Nosepiece move freely, without sticking.  
7. Press the Safety Nosepiece against  
the workpiece and squeeze the Trigger.  
The tool must cycle (fire) only once.  
Release the trigger and squeeze it  
again. The tool must cycle (fire)  
again only once. With the Trigger  
held, carefully lift the tool and press it  
against the workpiece again. The tool  
must cycle (fire) again only once. If  
it fails to act in the manner explained  
in bold, have it repaired by a qualified  
service technician.  
4. Connect the air supply to the tool and  
set within the Operating Air Pressure  
indicated on the Specification chart.  
5. Test the tool by pressing the Safety  
Nosepiece against the workpiece  
without pulling the Trigger. The tool  
must not cycle (fire). If it cycles (fires),  
stop immediately and take the tool to a  
qualified service technician for repair.  
6. Hold the tool away, or off of the  
workpiece. The Safety Nosepiece  
should return to its original position.  
Squeeze the Trigger. The tool must  
not cycle (fire). If it cycles (fires),  
stop immediately and take the tool to a  
qualified service technician.  
Single Sequential Safety Trip  
Mechanism Definition  
The Single Sequential safety trip  
mechanism is designed to prevent inadvertent  
firing. To set the Nailer in the Single  
Sequential mode, turn the Mode Switch to the  
Single Sequential position (as indicated by the  
single bump fire symbol).  
7. Press the Safety Nosepiece against  
the workpiece and squeeze the Trigger.  
The tool must cycle (fire) only once.  
Release the trigger and squeeze it  
again. The tool must cycle (fire)  
again only once. With the Trigger  
held, carefully lift the tool 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.  
The tool should only fire if the Safety  
Nosepiece is pressed against the workpiece  
prior to pulling the Trigger. It should only fire  
again if the trigger is released and squeezed  
again. The Tool should not fire if the Safety  
Nosepiece is not pressed against an object.  
Single Sequential Safety Trip  
Mechanism Testing Procedure  
TO PREVENT  
SERIOUS INJURY  
FROM ACCIDENTAL  
OPERATION: Empty the tool  
before this procedure. Point the  
tool at a piece of scrap wood  
when testing.  
1. Disconnect the tool from the air supply.  
2. Empty the magazine of fasteners.  
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5. Swing the Magazine Cover closed.  
Then, close the Cover Plate, making  
sure the Latch snaps shut. If the Latch  
does not engage, the nail head is not in  
the slot in the upper portion of the Feed  
Drive Guide.  
Loading the Tool  
TO PREVENT  
SERIOUS INJURY  
FROM ACCIDENTAL OPERATION,  
BEFORE LOADING:  
Wear ANSI‑approved safety  
goggles with side shields. Other  
people in the work area must also  
wear ANSI-approved impact safety  
goggles with side shields.  
Roofing Gauge Adjustment  
1. The Roofing Gauge (82) controls roof  
shingle spacing. To adjust the Roofing  
Gauge to work with a particular width of  
shingles, use the accessory Hex Wrench  
to loosen the Hex Bolt (83) on the  
Roofing Gauge.  
Release the trigger.  
Detach the air supply.  
• Attempt to fire the Tool into a  
piece of scrap wood to ensure  
that it is disconnected and is  
incapable of firing any fasteners.  
2. Slide the Bracket forward or backward to  
the desired shingle spacing.  
3. Then, retighten the Hex Bolt.  
1. To open the Magazine Cover (85), pull  
up on the Latch (81) and pull back the  
Moveable Cover Plate (80).  
General Operating Instructions  
1. Test the Tool, as directed on page 10 or  
11, before each use.  
2. Once the Cover Plate is lifted, lift up the  
Magazine Cover.  
2. 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.  
3. Check the Nail Support (92) inside the  
Magazine. Twist the Support and pull  
it up (or down) to adjust to use various  
lengths of nails from 3/4” to 1-3/4”:  
A.3/4” Long Nails  
(Use top setting marked on inside of  
Magazine).  
3. Attach the air hose to the Nailer. Start  
your compressor and check the pressure  
making sure it is not set to go over the  
maximum 120 PSI.  
B.Between 3/4” and 1‑3/4” Long Nails  
(Use middle setting marked on inside  
of Magazine).  
4. To re, place the nose of the Nailer  
on the workpiece. The Nailer should  
not fire if the nose is not depressed.  
Once depressed, gently and briefly  
squeeze the Trigger once. Do not fire  
repeatedly. Nails could bounce off of  
one another, damaging the workpiece or  
causing PERSONAL INJURY.  
C.1‑3/4” Long Nails  
(Use bottom setting marked on inside  
of Magazine).  
3. Place a coil of nails around the Nail  
Support in the Magazine.  
4. Uncoil enough nails to reach the Drive  
Guide (29). Place the second nail on the  
coil between the tabs of the Drive Guide,  
making sure the nail head fits in the slot  
in the top end of the Drive Guide.  
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5. If the tool requires more force to  
accomplish the task, verify that the  
tool receives sufficient, unobstructed  
airflow (CFM) and increase the pressure  
(PSI) output of the regulator up to the  
maximum air pressure rating of this tool.  
CAUTION! TO PREVENT TOOL AND  
ACCESSORY FAILURE, RESULTING  
IN INJURY: Do not exceed the tool’s  
maximum air pressure rating.  
If the tool still does not have sufficient  
force at maximum pressure and  
sufficient airflow, then a larger tool may  
be required.  
Note: While working on roofs, tar and  
dirt may build up on the Nose of the  
Roofing Nailer. This can prevent normal  
operation. Remove buildup with a  
nonflammable solvent. NEVER use  
gasoline or other flammable solvents.  
Do not immerse the Roofing Nailer in  
an approved solvent beyond the height  
of the nail heads, to avoid getting the  
solvent into the drive cylinder of the  
tool. Dry off the Roofing Nailer before  
use; any oil film left after cleanup will  
accelerate tar buildup.  
6. After use, to prevent accidents:  
a. Release the trigger.  
b. Detach the air supply.  
c. Attempt to fire the Tool into a piece  
of scrap wood to ensure that it is  
incapable of firing any fasteners.  
d. Release the trigger again.  
e. Clean external surfaces with clean,  
dry cloth.  
f. Store indoors out of children’s reach.  
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mechanism and may be highly  
flammable, causing an explosion.  
User‑Maintenance Instructions  
Note: These procedures are in addition to  
the regular checks and maintenance  
explained as part of the regular operation  
of the air-operated tool.  
Procedures not specifically  
explained in this manual must  
be performed only by a qualified  
technician.  
Daily ‑ Air Supply Maintenance:  
TO PREVENT  
SERIOUS INJURY  
FROM ACCIDENTAL OPERATION,  
BEFORE ANY MAINTENANCE OR  
REPAIRS ARE DONE (including  
clearing jams):  
Every day, perform maintenance on the  
air supply according to the component  
manufacturers’ instructions. If equipped.  
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 efficiently and  
will also reduce wear on the tool.  
Wear ANSI‑approved safety  
goggles with side shields. Other  
people in the work area must also  
wear ANSI-approved impact safety  
goggles with side shields.  
Clearing Jams  
Release the Trigger.  
Detach the air supply.  
TO PREVENT  
SERIOUS INJURY  
FROM ACCIDENTAL OPERATION,  
BEFORE ANY MAINTENANCE OR  
REPAIRS ARE DONE (including  
clearing jams):  
• Attempt to fire the Tool into a  
piece of scrap wood to ensure  
that it is disconnected and is  
incapable of firing any fasteners.  
Empty the magazine and leave  
it open during service. The  
Magazine is spring‑loaded and  
may cause parts or a fastener to  
fly out of the Tool.  
Wear ANSI‑approved safety  
goggles with side shields. Other  
people in the work area must also  
wear ANSI-approved impact safety  
goggles with side shields.  
TO PREVENT SERIOUS INJURY  
FROM TOOL FAILURE:  
Release the trigger.  
Detach the air supply.  
Do not use damaged equipment.  
If abnormal noise, vibration,  
or leaking air is detected, have  
the problem corrected before  
further use.  
• Attempt to fire the Tool into a  
piece of scrap wood to ensure  
that it is disconnected and is  
incapable of firing any fasteners.  
Empty the magazine and leave  
it open during service. The  
Magazine is spring‑loaded and  
may cause parts or a fastener to  
fly out of the Tool.  
TO PREVENT EXPLOSION:  
Lubricate 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  
1. If a fastener is jammed in the discharge  
area, pull up on the Latch and lift up the  
Moveable Cover Plate.  
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2. Remove the jammed fasteners  
with pliers.  
3. If a fastener is jammed in the Magazine,  
lift open the Latch, and then swing back  
the moveable Cover Plate and then the  
Magazine Cover.  
4. Uncoil the fasteners and, if necessary,  
use a screwdriver to release the  
jammed fastener.  
5. Pull out the jammed fastener.  
6. If you are unable to clear the fastener  
jam using the method prescribed above,  
the tool should be taken to a qualified  
service technician for proper servicing.  
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.  
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Troubleshooting  
Problem  
Insufficient  
fastener depth.  
Possible Causes  
1. Incorrect tool depth setting.  
2. Not enough air pressure.  
Likely Solutions  
1. Adjust depth setting.  
2. Check for loose connections and make sure that air  
supply is providing enough air pressure (PSI) to the  
tool’s air inlet. Do not exceed 120 PSI maximum  
air pressure.  
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. Mechanism contaminated.  
5. Have qualified technician clean and lubricate  
mechanism. Install in-line filter to the air supply as  
stated in Initial Set Up: Air Supply.  
Fasteners drive  
too deeply.  
1. Incorrect tool depth setting.  
2. Too much air pressure.  
1. Jammed fastener.  
1. Adjust depth setting, if available.  
2. Reduce air supply pressure (PSI).  
Tool cycles  
without firing  
fastener.  
1. Clear jammed fastener according to Clearing  
Jams instructions.  
2. Tool empty.  
2. Fill with correct fasteners.  
3. Incorrect fasteners used.  
3. Empty, then fill with correct fasteners.  
4. Clean and lubricate magazine and pusher.  
4. Magazine dirty or not  
lubricated properly.  
5. Insufficient air flow.  
5. Check for loose connections and make sure that  
air supply is providing enough air flow (CFM) and  
pressure (PSI) to the tool’s air inlet. Do not exceed  
120 PSI maximum air pressure.  
Frequent  
jamming.  
Incorrect fastener type.  
Confirm fastener diameter, type, length, angle, and  
collation type. Correct as needed.  
Severe air  
leakage.  
(Slight air leakage  
is normal,  
especially on  
older tools.)  
1. Cross-threaded housing  
components.  
1. Check for incorrect alignment and uneven gaps. If  
cross-threaded, disassemble and replace damaged  
parts before use.  
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.  
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Parts List  
Part  
Description  
Hex bolt M5x10  
Flat Washer 6  
Q’ty  
1
2
1
1
1
4
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
1
Part  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
92  
93  
94  
95  
96  
97  
98  
99  
Description  
Q’ty  
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
5
1
1
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
Depth Knob  
2
3
Retaining Ring 3  
Air valve seat sealing ring  
O-ring 16x1.6  
Sleeve seat  
O-ring 6.1x1.8  
O-ring 6.4x2  
Air deflector  
Deflector cover  
Cylinder cap sleeve  
Hex bolt M5x25  
Spring Washer 5  
Hex flat end bolt M5x8  
Cylinder cap  
4
5
6
7
8
9
Valve sleeve  
O-ring 9x1.8  
Cylinder cap O-ring 17x1.8  
Cylinder cap bumper  
Head valve spring  
O-ring 36.5x2.65  
Head valve  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
O-ring 2.5x1.5  
Air valve spring  
Air valve stem  
O-ring 18x2.65  
Air valve seat  
Trigger spring  
O-ring 8.75x1.8  
Nail claw pin  
Nailing piston  
Pin sleeve  
O-ring 17x2.65  
Nailing spring  
Piston spring seat  
Snap ring  
Cover plate pin  
Latch spring  
Nail stopping piece  
Nail stopping piece spring  
Axis pin  
Movable cover plate  
Latch  
Roofing Gauge  
Hex bolt M6x20  
Elastic piece  
O-ring 21x3  
O-ring 33.3x3.5  
O-ring 26.5x3.55  
Piston assembly  
Cylinder  
O-ring 33.6x2  
O-ring 37.5x3.55  
Collar  
Collar O-ring 46x2  
Cylinder cap gasket  
Housing  
Bumper  
Drive guide O-ring 10.6x1.8  
O-ring 2.8x1.8  
Drive guide  
Magnet assembly  
Spring Washer 6  
Hex bolt M6x25  
Nail claw spring  
Nail claw  
Hex bolt M4x10  
Drive guide cover  
Safety Nosepiece  
Retaining Ring 5  
Steel ball 3  
Magazine cover  
Hook seat  
Hook spring  
Magazine  
Hex bolt M5x18  
Flat Washer  
Magazine cover pin  
Nail Support  
Support spring cap  
Bracket  
Hex bolt M5x16  
Hex flange nut M5  
Rubber grip  
Position spring  
41 Mode Switch  
Pin 2.5x18  
Trigger Lever  
Trigger  
Pin 3x30  
Adjusting seat  
Pin 2.5x22  
Safety Nosepiece spring  
Flat Washer  
Push stem  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
O-ring 36.3x3.55  
End cap  
100 Air inlet plug  
101 Air inlet plug cover  
Depth screw  
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Limited 1‑Year 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 one year from the date of purchase  
(90 days if used by a professional contractor or if used as rental equipment). This warranty  
does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents,  
repairs or alterations outside our facilities, 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.  
3491 Mission Oaks Blvd. • PO Box 6009 Camarillo, CA 93011 • (800) 444-3353  
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