Owner’s Manual & Safety Instructions
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REV 16c
Visit our website at: http://www.harborfreight.com
Email our technical support at: productsupport@harborfreight.com
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2016 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.
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.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Table of Contents
SAFETY
Safety.......................................................... 2
Maintenance............................................... 14
Specifications.............................................. 7
Setup........................................................... 8
Operation.................................................... 11
Parts List and Diagram............................... 18
Warranty..................................................... 20
WARNING SYMBOLS AND DEFINITIONS
SETUP
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
OPERATION
Addresses practices not related to personal injury.
Symbol
PSI
Property or statement
Pounds per square inch of pressure
CFM
Cubic Feet per Minute flow
SCFM
Cubic Feet per Minute flow
at standard conditions
Symbol
Property or statement
Warning marking concerning
Risk of Puncture Injury.
Wear heavy‑duty work gloves.
Read the manual before
set-up and/or use.
WARNING marking concerning
Risk of Hearing Loss.
Wear hearing protection.
MAINTENANCE
NPT
National pipe thread, tapered
NPS
National pipe thread, straight
WARNING marking concerning
Risk of Respiratory Injury. Wear
NIOSH‑approved dust mask/respirator.
WARNING marking concerning
Risk of Eye Injury. Wear ANSI-approved
safety goggles with side shields.
WARNING marking concerning
Risk of Explosion.
Table A: Symbol Definitions
Page 2
For technical questions, please call 1-888-866-5797.
Item 63175 63176
IMPORTANT SAFETY INSTRUCTIONS
SAFETY
INSTRUCTIONS PERTAINING TO A RISK OF FIRE,
ELECTRIC SHOCK, OR INJURY TO PERSONS
WARNING – When using tools, basic precautions should always be followed, including the following:
General
To reduce the risks of electric shock, fire, and injury to persons,
read all the instructions before using the tool.
Work area
c. Keep bystanders, children, and visitors away
while operating the tool. Distractions are able
to result in the loss of control of the tool.
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.
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.
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.
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.
e.
Use safety equipment.
A dust mask, non-skid safety shoes and
a hard hat must be used for the
applicable conditions. Wear heavy-duty
work gloves during use.
Item 63175 63176
f.
Always wear eye protection.
Wear ANSI-approved safety goggles
with side shields.
g.
Always wear hearing protection when
using the tool. Prolonged exposure to
high intensity noise is able to
cause hearing loss.
h. Do not attach the hose or tool to your body.
Attach the hose to the structure to reduce the
risk of loss of balance if the 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.
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.
For technical questions, please call 1-888-866-5797.
Page 3
OPERATION
SETUP
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.
MAINTENANCE
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.
Tool use and care
SAFETY
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.
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.
c. Do not use the tool if the trigger does not
turn the tool on or off. Any tool that cannot
be controlled with the trigger is dangerous
and must not be used until repaired.
SETUP
d. Disconnect the tool from the air source
before making adjustments, doing tool
maintenance, clearing jams, touching the
safety nosepiece, leaving work area, loading,
or unloading the tool. Such precautionary
measures reduce the risk of injury to persons.
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.
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.
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 specific
tool model, increases the risk of injury to persons.
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.
Service
a. Tool service must be performed only
by qualified repair personnel.
c. Use only the lubricants supplied with the
tool or specified by the manufacturer.
b. When servicing a tool, use only identical
replacement parts. Use only authorized parts.
OPERATION
Air source
a.
Never connect to an air source that is
capable of 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.
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.
MAINTENANCE
SAVE THESE INSTRUCTIONS.
Page 4
For technical questions, please call 1-888-866-5797.
Item 63175 63176
Specific Safety Instructions
4. Always assume the tool contains fasteners.
5. Do not point the 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.
7. Respect the tool as a working implement.
8. No horseplay. This tool is not a toy
and can be deadly if misused.
9. Do not load the tool with fasteners when any
one of the operating controls, such as the
Trigger or Safety Nosepiece, is activated.
10. Do not remove, tamper with, or otherwise cause
the tool operating controls to become inoperable.
11. Do not operate the tool if any portion of
the tool operating controls is inoperable,
disconnected, altered, or not working properly.
12. Disconnect the tool from the air supply when:
a. Unattended.
b. Performing any maintenance or repair.
c. Clearing a jam.
d. Moving the tool to a new location.
13. Do not make any modifications to this tool.
14. Refer to the tool maintenance instructions for detailed
information on the proper maintenance of the tool.
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.
Item 63175 63176
SAFETY
18. Transport tool safely. Always disconnect air
supply when moving the tool. Carry the tool by
the handle and avoid contact with the trigger.
19. Hold tool away from head and body. During operation
the tool may kick back causing injury.
20. Do not fire fasteners into a workpiece that has people,
utility lines, or other objects behind or inside it.
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.
SETUP
3. Choice of triggering method is important.
Check manual for triggering options.
17. Keep clear of the 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.
22. Obey the manual for the air compressor
used to power this tool.
23. Install an in-line shutoff valve to allow
immediate control over the air supply in an
emergency, even if a hose is ruptured.
24. Do not engrave or stamp anything into
the housing to avoid weakening it.
25. WARNING: This product contains lead, a chemical
known to the State of California to cause cancer
and birth defects or other reproductive harm.
(California Health & Safety Code § 25249.5, et seq.)
26. WARNING: This product contains di (2-ethylhexyl)
phthalate (DEHP), a chemical known to the State
of California to cause cancer and birth defects
or other reproductive harm. (California Health
& Safety Code § 25249.5, et seq.)
27. 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.
For technical questions, please call 1-888-866-5797.
Page 5
OPERATION
2. Keep fingers away from trigger when not
driving fasteners to avoid accidental firing.
16. Do not fire fasteners too close to the edge of
a workpiece. They may split the workpiece
and fly free, causing personal injury.
MAINTENANCE
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.
Vibration Precautions
SAFETY
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:
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 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.
2. Do not smoke during use. Nicotine 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.
7. To reduce vibration, maintain tool as explained
in this manual. If abnormal vibration occurs,
stop immediately.
SETUP
SAVE THESE INSTRUCTIONS.
OPERATION
MAINTENANCE
Page 6
For technical questions, please call 1-888-866-5797.
Item 63175 63176
Functional Description
Specifications
63175
63176
Maximum Air Pressure
120 PSI
120 PSI
Air Inlet
1/4″–18 NPT
1/4″–18 NPT
Air Consumption
3 CFM @ 90 PSI
3 CFM @ 90 PSI
Single Sequential or
Contact Trip (switchable)
10 Gauge,
2-3/8″– 3-1/4″ Long, 21° Angle,
Plastic Collated Full Head
Single Sequential or
Contact Trip (switchable)
10 Gauge,
2-3/8″– 3-1/4″ Long, 28° Angle,
Paper Collated Clipped Head
Safety Mechanism Type
Nail Type
SAFETY
Model
SETUP
Components and Controls
Exhaust
Mode
Switch
Trigger
Pusher
Lock
OPERATION
Air Inlet
Magazine
Pusher
Safety
Nosepiece
MAINTENANCE
Depth
Adjustment
Screw
Safety Nosepiece - Also called the workpiece contact, the Safety Nosepiece helps
prevent the tool from firing unless it is pressed against an object.
Item 63175 63176
For technical questions, please call 1-888-866-5797.
Page 7
Initial Tool Set Up/Assembly
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.
SAFETY
Note: For additional information regarding the parts listed in the following pages,
refer to the Assembly Diagram near the end of this manual.
Air Supply
TO PREVENT EXPLOSION:
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.
SETUP
1. Incorporate a filter, regulator with pressure gauge,
oiler, in-line shutoff valve, and quick coupler for
best service, as shown on Figure A on page 9
and Figure B on page 10. An in-line shutoff
ball valve is an important safety device because
it controls the air supply even if the air hose
is ruptured. The shutoff valve should be a
ball valve because it can be closed quickly.
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.
Note: This air tool may be shipped with a protective plug
covering the air inlet. Remove this plug before set up.
OPERATION
2. Attach an air hose to the compressor’s air outlet.
Connect the air hose to the air inlet of the tool.
Other components, such as a coupler plug
and quick coupler, will make operation
more efficient, but are not required.
WARNING! TO PREVENT SERIOUS INJURY
FROM ACCIDENTAL OPERATION:
Do not install a female quick coupler on the tool.
Such 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.
MAINTENANCE
3. The air hose must be long enough to reach
the work area with enough extra length to
allow free movement while working.
Page 8
4. Release the tool’s trigger and empty its magazine.
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.
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 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
workpieces that have a thickness of less than 1-3/4″.
9. Inspect the air connections for leaks.
Repair any leaks found.
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.
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.
For technical questions, please call 1-888-866-5797.
Item 63175 63176
Item 63175 63176
For technical questions, please call 1-888-866-5797.
Page 9
Air Hose
Filter
Regulator
Lubricator (optional)
Coupler and Plug
Leader Hose (optional)
Air Cleaner / Dryer (optional)
Air Adjusting Valve (optional)
MAINTENANCE
A
B
C
D
E
F
G
H
B
B
OPERATION
Description
Non-lubricated
Tools
A
Lubricated
Tools
C
C
A
SETUP
Function
A
E
E
F
H
SAFETY
Connects air to tool
Prevents dirt and condensation from damaging tool or workpiece
Adjusts air pressure to tool
For air tool lubrication
Provides quick connection and release
Increases coupler life
Prevents water vapor from damaging workpiece
For fine tuning airflow at tool
G
D
Figure A: Portable Air Supply Setup
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
F
Description
F
G
I
I
J
K
N
Slope
J
H
Function
H
L
L
M
O
For noise and vibration reduction
Secures air compressor in place
Isolates sections of system for maintenance
For vibration reduction
Distributes air to branch lines
To drain moisture from system
Brings air to point of use
Connects air to tool
Prevents dirt and condensation from damaging tool or workpiece
Adjusts air pressure to tool
For air tool lubrication
Provides quick connection and release
Increases coupler life
Prevents water vapor from damaging workpiece
For fine tuning airflow at tool
Non-lubricated Tools
C
C
Lubricated
Tools
Vibration Pads
Anchor Bolts
Ball Valve
Isolation Hose
Main Air Line - 3/4″ minimum recommended
Ball Valve
Branch Air Line -1/2″ minimum recommended
Air Hose
Filter
Regulator
Lubricator (optional)
Coupler and Plug
Leader Hose (optional)
Air Cleaner / Dryer (optional)
Air Adjusting Valve (optional)
B
A
MAINTENANCE
B
A
E
OPERATION
C D
SETUP
Figure B: Stationary Air Supply Setup
SAFETY
Page 10
For technical questions, please call 1-888-866-5797.
Item 63175 63176
F
Operating Instructions
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.
SAFETY
Inspect tool before use, looking for damaged, loose, and missing parts.
If any problems are found, do not use tool until repaired.
Workpiece and Work Area Set Up
2. Route the air hose along a safe route 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.
3. Secure loose workpieces using a vise or clamps
(not included) to prevent movement while working.
4. There must not be hazardous objects
(such as utility lines or foreign objects) nearby
that will present a hazard while working.
SETUP
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.
Single Sequential Safety Trip Mechanism Definition
The single sequential safety trip mechanism is designed to prevent inadvertent firing. Use the Mode
Switch near the Trigger to change modes. 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.
1. Disconnect the tool from the air supply.
2. Load the magazine with fasteners.
3. Check that the Trigger and the Safety Nosepiece
move freely, without sticking.
4. Place the Mode Switch on the Trigger in
the Single Sequential position. Refer to
Safety Trip Mode Switch on page 12.
5. Connect the air supply to the tool and
set within the Operating Air Pressure
indicated on the Specification chart.
6. 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 have it
repaired by a qualified service technician.
Item 63175 63176
7. 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.
8. Press the Safety Nosepiece against the workpiece
and squeeze the Trigger.
The tool must cycle (fire) only once.
Release the trigger, slide the nailer to a fresh piece of
wood, 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.
For technical questions, please call 1-888-866-5797.
Page 11
MAINTENANCE
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Point the tool at a piece of scrap wood when testing.
OPERATION
Single Sequential Safety Trip Mechanism Testing Procedure
Contact Safety Trip (Bump Fire) Mechanism Definition
SAFETY
The contact safety trip (or bump fire) mechanism allows rapid fire. Use the Mode Switch near the Trigger
to change modes. 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.
Contact Safety Trip (Bump Fire) Mechanism Testing Procedure
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Point the tool at a piece of scrap wood when testing.
1. Disconnect the tool from the air supply.
2. Load the magazine with fasteners.
SETUP
3. Check that the Trigger and the Safety Nosepiece
move freely, without sticking.
4. Place the Mode Switch on the Trigger
in the Contact Trip position. Refer to
Safety Trip Mode Switch below.
5. Connect the air supply to the tool and
set within the Operating Air Pressure
indicated on the Specification chart.
6. 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 have it
repaired by a qualified service technician.
7. 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.
8. Press the Safety Nosepiece against the workpiece
and squeeze the Trigger.
The tool must cycle (fire) only once.
Release the trigger, slide the nailer to a fresh piece of
wood, and squeeze it again.
The tool must cycle (fire) again only once.
With the Trigger depressed, carefully lift the tool
and press it against the workpiece
again in a new location.
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.
OPERATION
Safety Trip Mode Switch
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL FIRING:
•Release Trigger and point tool in a safe direction before changing safety trip mode.
•ONLY operate the tool with the Switch fully in one of the safety trip mode positions.
1. Turn the Switch on the Trigger to the
(single nail)
setting to enable Single Sequential operation.
This operation is safer and should
be used whenever practical.
MAINTENANCE
2. Turn the Switch on the Trigger to the
(multiple
nail) setting to enable contact trip / bump fire
operation. This operation is more dangerous.
Only a skilled operator who is aware of the
hazards and uses proper, safe work practices
should use contact trip / bump fire operation.
Single Sequential
Position
Contact Trip
Position
Figure C: Trigger Mode Switch Positions
Page 12
For technical questions, please call 1-888-866-5797.
Item 63175 63176
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.
•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.
b. Item 63176 uses 10 gauge, 2-3/8"– 3-1/4" long,
28° angle, paper collated clipped head nails.
3. Orient a strip of nails with the tips down and
drop the strip of nails into Magazine.
4. Pull Pusher back, release Pusher Lock, and
allow Pusher to slide forward against strip of nails.
1. Before each use, test the tool as
directed in the prior section.
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.
WARNING! TO PREVENT
SERIOUS INJURY: Keep second hand
away from tool discharge area,
especially if holding workpiece.
Tool applies extreme force to fastener,
and fasteners may deflect or fire in an
unexpected direction.
CAUTION! TO PREVENT INJURY: Do not hold tool
near body while firing. Tool recoil can cause injury.
3. Position tool at desired fastener location and depress
the Safety Nosepiece fully against the workpiece.
Squeeze the trigger to fire a fastener.
Note: PREVENT DOUBLE FIRING,
allow the tool to recoil from the workpiece,
do not force it against the workpiece.
4. Firing multiple fasteners
using contact trip (bump fire) mode:
Squeeze and hold trigger, then push
Safety Nosepiece to fire one fastener,
move and push Safety Nosepiece
again to fire additional fasteners.
5. To change firing depth: Disconnect Air Supply
and keep Safety Nosepiece pointed away.
Loosen the Depth Adjustment Screw,
adjust the Safety Nosepiece, and retighten the
Screw to control the firing depth. See Figure D.
Item 63175 63176
SETUP
General Operating Instructions
Depth
Adjustment
Screw
Safety
Nosepiece
Figure D: Depth Adjustment
6. If, at the maximum depth setting, 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.
OPERATION
a. Item 63175 uses 10 gauge, 2-3/8"– 3-1/4" long,
21° angle, plastic collated full head nails.
2. Pull Pusher all the way to the rear of Magazine
until it is held in place by the Pusher Lock.
CAUTION! TO PREVENT INJURY FROM TOOL OR
ACCESSORY FAILURE:
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: The nailer will stop firing when it is empty.
7. After use, to prevent accidents:
a. Release the Trigger.
b. Detach the air supply.
c. Change the Mode Switch to
setting.
d. Attempt to fire the tool into a piece of scrap
wood to ensure that it is disconnected
and is incapable of firing any fasteners.
e. Release the Trigger again.
f. Clean external surfaces with clean, dry cloth.
g. Store indoors out of children’s reach.
For technical questions, please call 1-888-866-5797.
Page 13
MAINTENANCE
1. Make sure nail type and angle are correct for nailer:
SAFETY
Loading the Tool
User-Maintenance Instructions
Procedures not specifically explained in this manual must be performed only by a qualified technician.
SAFETY
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION,
BEFORE ANY MAINTENANCE OR REPAIRS ARE DONE (including clearing jams):
•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.
•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.
•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.
SETUP
TO PREVENT SERIOUS INJURY FROM TOOL FAILURE:
Do not use damaged equipment.
If abnormal noise, vibration, or leaking air is detected, have the problem corrected before further use.
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 mechanism and may be highly flammable, causing an explosion.
Note: These procedures are in addition to the regular checks and maintenance
explained as part of the regular operation of the air-operated tool.
1. BEFORE EACH USE, inspect the general
condition of the tool. Check for:
• proper safety trip mechanism operation
• free Safety Nosepiece and Trigger movement
OPERATION
• loose hardware or housing
• misalignment or binding of moving parts
• cracked or broken parts
2. Daily - Air Supply Maintenance:
Every day, perform maintenance on the air supply
according to the component manufacturers'
instructions. Maintain the lubricator's oil level.
Drain the moisture filter regularly.
Performing routine maintenance on the air
supply will allow the tool to operate more safely
and will also reduce wear on the tool.
• any other condition that may
affect its safe operation.
MAINTENANCE
Page 14
For technical questions, please call 1-888-866-5797.
Item 63175 63176
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION,
BEFORE ANY MAINTENANCE OR REPAIRS ARE DONE (including clearing jams):
•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.
•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.
•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.
4. If the jam cannot be cleared using the method above,
have the tool serviced by a qualified technician.
MAINTENANCE
OPERATION
2. If a fastener is jammed in the Magazine, pull the
Pusher all the way back to the engaged position.
Use a screwdriver to release the jammed fastener
by probing the openings in the Magazine.
3. Pull out the jammed fastener and the remainder of
the fastener strip from the Magazine.
Dispose of the remaining fastener strip;
it is likely bent or damaged and may cause repeated
jamming or damage to the tool if reused.
SETUP
1. If a fastener is jammed in the
discharge area, remove it with pliers.
SAFETY
Clearing Jams
Item 63175 63176
For technical questions, please call 1-888-866-5797.
Page 15
Troubleshooting
Problem
Insufficient
fastener depth.
Possible Causes
1. Incorrect tool depth setting.
2. Not enough air pressure.
SAFETY
3. Incorrect lubrication or
not enough lubrication.
4. Blocked air inlet screen
(if equipped).
5. Mechanism contaminated.
Likely Solutions
1. Adjust depth setting, if available.
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 maximum air pressure.
3. Lubricate using air tool oil and grease
according to directions.
4. Clean air inlet screen of buildup.
5. Have qualified technician clean and lubricate
mechanism. Install in-line filter in air supply
as stated in Initial Set Up: Air Supply.
SETUP
Fasteners drive
too deeply.
1. Incorrect tool depth setting.
2. Too much air pressure.
1. Adjust depth setting, if available.
2. Reduce air supply pressure (PSI).
Tool cycles
without firing
fastener.
1. Jammed fastener.
1. Clear jammed fastener according to
Clearing Jams instructions.
2. Reload with correct fasteners.
3. Empty, then reload with correct fasteners.
4. Clean and lubricate Magazine and Pusher.
Frequent
jamming.
2. Tool empty.
3. Incorrect fasteners used.
4. Magazine dirty or not
lubricated properly.
5. Insufficient air flow.
Incorrect nail type.
OPERATION
Severe air
1. Cross‑threaded housing
leakage.
components.
(Slight air leakage
is normal,
2. Loose housing.
especially on
older tools.)
3. Damaged valve or housing.
4. Dirty, worn or damaged valve.
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 maximum air pressure.
Confirm nail collation type, diameter, angle,
type, and length. Correct as needed.
1. Check for incorrect alignment and uneven gaps.
If cross-threaded, disassemble and
replace damaged parts before use.
2. Tighten housing assembly. If housing cannot tighten
properly, internal parts may be misaligned.
3. Replace damaged components.
4. Clean or replace valve assembly.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect air supply before service.
MAINTENANCE
Page 16
For technical questions, please call 1-888-866-5797.
Item 63175 63176
MAINTENANCE
OPERATION
SETUP
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.
SAFETY
PLEASE READ THE FOLLOWING CAREFULLY
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.
Item 63175 63176
For technical questions, please call 1-888-866-5797.
Page 17
Parts List and Diagram
Parts List
SAFETY
Part
SETUP
OPERATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Description
Screw M5 x 25
Sleeve
O-Ring 11.2 x 1.8
Air Deflector
O-Ring 10.5 x 3.55
Screw M6 x 35
Spring Washer
Cylinder Cap
Spring Plate Washer
Spring Plate
Head Valve Spring
Head Valve Washer
O-Ring 41.7 x 3
O-Ring 56.8 x 3
Head Valve
O-Ring 43 x 4.9
Piston Assembly
Locating Ring
O-Ring 63 x 2.65
Cylinder Gasket
Cylinder
O-Ring 56 x 3.1
Collar
O-Ring 88 x 3
O-Ring 56 x 5.7
Bumper Outer Ring
Bumper Inner Ring
Cylinder Cap Gasket
Gun Body
Compressed Spring
Safety Shelf
Depth Adjustment Screw M5 x 10
Spring Washer
Part
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
Description
Washer
Depth Adjustment Nut
Safety Nosepiece
Collar
Safety Tip
Sealing Washer
Sleeve Seat
O-Ring 16 x 1.6
O-Ring 6.1 x 1.8
Air Valve Sleeve
O-Ring 6.4 x 2
O-Ring 9 x 1.8
Spring
Air Valve Stem
O-Ring 2.4 x 1.6
O-Ring 18 x 2.65
Air Valve Seat
Spring
O-Ring 1.7 x 2
Adjusting Seat
Pin
Rubber Grip
End Cap Gasket
End Cap
Air Inlet Plug
Air Inlet Plug Cover
Screw M5 x 20
Spring Gasket 5
Spring Gasket 8
Screw M8 x 30
Pin Sleeve
Pin
O-Ring 62 x 1.8
Part
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
98
99
100
Description
Driver Guide
Lock Nut
Washer 4
Screw M4 x 8
Nail Guiding Bar
Plain Washer 5
Screw M8 x 25
Hex Bolt M5
Position Seat
Scew M4 x 42
Latch Spring
Strut
Latch
Pin 2 x 12
Pusher
Spiral Srping
Spring Core
Pin
Strut Sleeve
Screw M5 x 14
Magazine
Set Plate
Screw M6 x 14
Adjusting Rod
Adjusting Spring
Adjusting Stop Block
Safety Plate
Trigger
Mode Switch
Pin
Hex Wrench 6 mm
Hex Wrench 8 mm
Oil Bottle
Note: Specify the nailer you are ordering for when ordering parts: 21° Item 63175 or 28° Item 63176.
MAINTENANCE
Page 18
For technical questions, please call 1-888-866-5797.
Item 63175 63176
MAINTENANCE
OPERATION
SETUP
SAFETY
Assembly Diagram
Item 63175 63176
For technical questions, please call 1-888-866-5797.
Page 19
Limited 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 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 • 1-888-866-5797
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