Central Pneumatic 98733 Installation manual

21° ANGLE
FRAMING NAILER
98733
SET UP AND OPERATING INSTRUCTIONS
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright©2008 by Harbor Freight Tools®. All rights reserved. No portion of this manual or any artwork contained
herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools. Diagrams
within this manual may not be drawn proportionally. Due to continuing improvements, actual product may differ slightly
from the product described herein. Tools required for assembly and service may not be included.
For technical questions or replacement parts, please call 1-800-444-3353.
Revised 09i

SKU 98733 For technical questions, please call 1-800-444-3353. Page 2
SAVE THIS MANUAL
Keep this manual for the safety warn-
ings and precautions, assembly, operat-
ing, inspection, maintenance and cleaning
procedures. Write the product’s serial
number in the back of the manual near the
assembly diagram (or month and year of
purchase if product has no number). Keep
this manual and the receipt in a safe and
dry place for future reference.
Safety Alert Symbol and Signal
Words
In this manual, on the labeling,
and all other information provid-
ed with this product:
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.
DANGER indicates
a hazardous
situation which, if not
avoided, will result in death or
serious injury.
WARNING
indicates a
hazardous situation which, if
not avoided, could result in
death or serious injury.
CAUTION, used
with the safety
alert symbol, indicates a
hazardous situation which, if
not avoided, could result in
minor or moderate injury.
NOTICE is used to
address practices
not related to personal injury.
CAUTION, without
the safety alert
symbol, is used to address
practices not related to
personal injury.
IMPORTANT SAFETY
INSTRUCTIONS
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
a. To reduce the risks of electric
shock, re, and injury to persons,
read all the instructions before us-
ing the tool.
Work area
a. Keep the work area clean and well
lighted. Cluttered benches and dark
areas increase the risks of electric
shock, re, and injury to persons.
b. Do not operate the tool in explo-
sive atmospheres, such as in the
presence of ammable liquids,
gases, or dust. The tool is able to
create sparks resulting in the ignition
of the dust or fumes.

SKU 98733 For technical questions, please call 1-800-444-3353. Page 3
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 do-
ing and use common sense when
operating the tool. Do not use the
tool while tired or under the inu-
ence of drugs, alcohol, or medica-
tion. 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 switch is off before con-
necting to the air supply. Do not
carry the tool with your nger on the
switch or connect the tool to the air
supply with the switch on.
d. Remove adjusting keys and
wrenches before turning the tool
on. A wrench or a key that is left at-
tached to a rotating part of the tool
increases the risk of personal injury.
e. Do not overreach. Keep proper
footing and balance at all times.
Proper footing and balance enables
better control of the tool in unexpect-
ed situations.
f. 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. Wear a full face
shield if you are producing metal l-
ings or wood chips.
g. Always wear eye protec-
tion. Wear ANSI-ap-
proved safety goggles with
side shields during use.
h. Always wear hearing
protection when using
the tool. Prolonged expo-
sure to high intensity noise
is able to cause hearing loss.
Tool use and care
a. Avoid unintentional
misres. Be sure Trigger
(56) is in the OFF posi-
tion when not in use and
before plugging in. Do
not carry any tool with your nger on
the Trigger, whether it is attached to
an air source or not. Do not point tool
towards yourself or anyone whether it
contains nails or not.
b. Do not load nails with Trigger or
safety depressed. Unintentional r-
ing may occur. Always assume Nailer
contains fasteners.
c. Do not load fasteners when Nailer
is connected to air hose. Always
assume tool contains fasteners. Unin-
tentional ring may occur.
d. Properly adjust Nailer angle to
match corresponding fasteners
before inserting nail strip. Failure
to do so can cause Nailer to jam and
lead to personal and/or property dam-
age.

SKU 98733 For technical questions, please call 1-800-444-3353. Page 4
e. Fire nails into an appropriate work
surface only. Do not attempt to re
nails into surfaces too hard to pen-
etrate. Do not drive nails on top of
other nails, or at too steep an angle.
Nails can ricochet, causing personal
injury. Never re this tool into the air
or point it toward yourself or another
person.
f. Hold tool away from head and
body during use. Tool may kick
back, causing injury.
g. Do not re fasteners too close to
edge of workpiece. They may split
the workpiece and y free, causing
personal injury.
h. Carry tool safely. Carry tool by
handle.
i. 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 is able to
lead to loss of control.
j. Do not force the tool. Use correct
tool for application. The correct tool
will do the job better and safer at the
rate for which the tool is designed.
k. Disconnect the tool from the air
source before making any adjust-
ments, changing accessories, or
storing the tool. Such preventive
safety measures reduce the risk
of starting the tool unintentionally.
Turn off and detach the air supply
and safely discharge any residual
air pressure before leaving the work
area.
l. Store the tool when it is idle out of
reach of children and other un-
trained persons. A tool is dangerous
in the hands of untrained users.
m. Maintain the tool with care. Keep
tool clean. A properly maintained tool,
reduces the risk of binding and is
easier to control.
n. Check for misalignment or bind-
ing of moving parts, breakage of
parts, and any other condition that
affects the tool’s operation. If dam-
aged, 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.
o. Use only accessories that are
identied by the manufacturer for
the specic tool model. Use of an
accessory not intended for use with
the specic tool model, increases the
risk of injury to persons.
Service
a. Tool service must be performed
only by qualied repair personnel.
b. When servicing a tool, use only
identical replacement parts. Use
only authorized parts.
c. Use only the lubricants supplied
with the tool or specied by the
manufacturer.
Air source
a. Never connect to an air
source that is capable of
exceeding 120 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
Rev 09l

SKU 98733 For technical questions, please call 1-800-444-3353. Page 5
pressure or within the rated pressure
range as marked on the tool (70 to
120 PSI). 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.
SAVE THESE
INSTRUCTIONS.
SYMBOLS AND
SPECIFIC SAFETY
INSTRUCTIONS
Symbol Denitions
Symbol Property or statement
noNo-load speed
.../min Revolutions or reciprocation per
minute
PSI Pounds per square inch of pressure
ft-lb Foot-pounds of torque
BPM Blows per minute
CFM Cubic Feet per Minute ow
SCFM Cubic Feet per Minute ow at
standard conditions
NPT National pipe thread, tapered
NPS National pipe thread, straight
Chart continued in next column.
Symbol Denitions
Symbol Property or statement
WARNING marking concerning Risk
of Eye Injury. Wear ANSI-approved
eye protection.
WARNING marking concerning Risk
of Hearing Loss. Wear hearing
protection.
WARNING marking concerning Risk
of Respiratory Injury. Wear NIOSH-
approved dust mask/respirator.
WARNING marking concerning Risk
of Explosion.
Specic Safety Instructions
1. The warnings and precautions dis-
cussed in this manual cannot cover
all possible conditions and situations
that may occur. It must be under-
stood by the operator that common
sense and caution are factors which
cannot be built into this product, but
must be supplied by the operator.
2. WARNING: Some dust created by
power sanding, sawing, grinding, drill-
ing, 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
• Crystalline silica from bricks and
cement or other masonry products
• Arsenic and chromium from chemi-
cally treated lumber
Your risk from these exposures var-
ies, depending on how often you do
this type of work. To reduce your
exposure to these chemicals: work in
a well ventilated area, and work with
approved safety equipment, such as
Rev 09l

SKU 98733 For technical questions, please call 1-800-444-3353. Page 6
those dust masks that are specially
designed to lter out microscopic
particles. (California Health & Safety
Code § 25249.5, et seq.)
3. Take caution, as some woods contain
preservatives such as copper chro-
mium arsenate (CCA) which can be
toxic. When nailing these materials,
extra care should be taken to avoid
inhalation and minimize skin contact.
4. WARNING: The brass components
of this product contain lead, a chemi-
cal known to the State of California
to cause birth defects (or other repro-
ductive harm). (California Health &
Safety code § 25249.5, et seq.)
5. Only use with accessories rated to
handle forces exerted by tool during
operation. Other accessories not de-
signed for the forces generated may
break and forcefully launch pieces.
6. Attach all accessories properly to the
tool before connecting the air sup-
ply. A loose accessory may detach or
break during operation.
7. Obey the manual for the air compres-
sor used to power this tool.
8. Install in-line shutoff valve to allow
immediate control over air supply in
emergency, even if hose is ruptured.
9. Do not lay tool down until it has com-
pletely stopped. Moving parts can
grab surface and lead to control loss.
Vibration Precautions
This tool vibrates during use. Re-
peated or long-term exposure to vibra-
tion 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 regu-
larly or for an extended period should
rst 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, ner-
vous system disorders, diabetes, or
Raynaud’s Disease should not use
this tool. If you feel any medical or
physical symptoms related to vibra-
tion (such as tingling, numbness, and
white or blue ngers), seek medical
advice as soon as possible.
2. Do not smoke during use. Nico-
tine reduces the blood supply to the
hands and ngers, 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 dif-
ferent 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.
SAVE THESE
INSTRUCTIONS.

SKU 98733 For technical questions, please call 1-800-444-3353. Page 7
FUNCTIONAL DESCRIPTION
Specications
Working Air
Pressure Range
70-120 PSI* (Depending on
nail length and wood density)
Air Inlet 1/4” -18 NPT
Nail Type .113”-.131” diameter, 2-3/16” to
3-1/2” L, 21° Nails
Fastener Type Plastic Collated Full Head Nails
Magazine
Capacity 60 Nails
Air Consumption
3 CFM @ 90 PSI
(Intermittent use)
12 CFM at 90 PSI
(Required for continuous use)
Safety Trigger Single Sequential Actuation
* The pressure setting must not exceed the job
site regulations/restrictions.
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.
Note: For additional information regarding
the parts listed in the following pages,
refer to the Assembly Diagram near
the end of this manual.
Unpacking
When unpacking, check to make sure
item is intact and undamaged. If any parts
are missing or broken, call Harbor Freight
Tools at the number shown throughout the
manual as soon as possible.
• 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:
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.
1. Incorporate an in-line oiler, shut-off
valve, regulator with pressure gauge,
and lter for best service, as shown in
the diagram above. An in-line shut-
off valve is an important safety
device because it controls the air
supply even if the air hose is rup-
tured.
Note: If an automatic oiler system is not
used, add a few drops of Pneumatic
Tool Oil to the airline connection be-
fore operation. Add a few more drops
after each hour of continual use.
2. Attach an air hose to the compres-
sor’s air outlet. Connect the air hose
to the air inlet of the tool. Other com-
Revised 09i; 09l

SKU 98733 For technical questions, please call 1-800-444-3353. Page 8
ponents, such as a connector and
quick coupler, will make operation
more efcient, 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 ow, and therefore tool perfor-
mance, can be hindered by under-
sized air supply components.
3. The air hose must be long enough
to reach the work area with enough
extra length to allow free movement
while working.
4. Close the in-line safety valve be-
tween the compressor and the tool.
5. Turn on the air compressor according
to the manufacturer’s directions and
allow it to build up pressure until it
cycles off.
6. 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.
7. Inspect the air connections for leaks.
Repair any leaks found.
8. If the tool will not be used at this time,
turn off and detach the air supply
and safely discharge any residual air
pressure.
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.
To Attach An Air Connector:
1. Attach a 1/4” Connector (not
included) to the Air Plug (83) on the
Nailer.
2. Wrap about 3” of pipe thread seal
tape (not included) onto threads of
the Connector before attaching it to
the Air Plug.
3. Connect the 3/8” air source hose to
the Nailer.
4. Set the air pressure on compressor to
70 to 120 PSI operating pressure. Do
not exceed 120 maximum PSI.
5. Check air connection for leaks. If any
are present, disconnect the Nailer
from air source hose.
Rev 09l

SKU 98733 For technical questions, please call 1-800-444-3353. Page 9
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.
Inspect tool before use, looking
for damaged, loose, and
missing parts. If any problems
are found, do not use tool until
repaired.
Testing the Single Sequential
Safety Trip Mechanism
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Detach the air
supply, safely discharge any
residual air pressure in the
tool before performing any
inspection, maintenance, or
cleaning procedures.
TO PREVENT SERIOUS
INJURY: Do not adjust or
tamper with any control or
component in a way not
specically explained within
this manual. Improper
adjustment can result in
tool failure or other serious
hazards.
1. WARNING! Even though the Nailer
should be empty during this proce-
dure, ALWAYS point the Nailer at a
piece of scrap wood when testing.
2. Completely empty Magazine (71).
3. The Nailer should not re if Safety
(37) is not depressed against the
workpiece.
4. Make sure Trigger (56) and Safety
(37) move freely, without sticking.
5. Connect air supply to the Air Plug
(83). Set the regulator at the
recommended 70 to 120 PSI.
6. Test by depressing Safety (37)
against the workpiece without pull-
ing the Trigger. The Tool must not
cycle (re). If it cycles (res), stop
immediately and have it repaired by
a qualied service technician.
7. Hold tool away or off of workpiece.
The Safety should return to its
original position. Squeeze Trigger.
The tool should not cycle (re).
If the tool res, stop immediately
and have it repaired by a qualied
service technician.
8. Depress Safety against workpiece
and squeeze Trigger. The tool
must cycle (re) only once. Re-
lease the Trigger and squeeze it
again. The tool must cycle (re)
only once. With the Trigger held,
carefully lift the Nailer and press it
against the workpiece again. The
tool must not cycle (re). If it fails
Safety (37)
Magazine (71)
Trigger (56) Air Plug (83)
Figure 1
Rev 09l

SKU 98733 For technical questions, please call 1-800-444-3353. Page 10
to perform in the manner explained
in bold, have it repaired by a quali-
ed service technician.
WARNING! Disconnect the Nailer
from the air compressor when-
ever loading or servicing.
ALWAYS WEAR ANSI-
APPROVED IMPACT SAFETY
GOGGLES WHEN
RELOADING OR DOING ANY
OTHER MAINTENANCE ON
NAILER. Other people in work
area must also wear ANSI-
approved safety goggles.
Loading Nails
1. CAUTION! Make sure Nailer is not
attached to the air hose when loading
tool.
2. CAUTION! Keep Nailer pointed away
from yourself and others at all times.
Always disconnect Nailer from its air
supply before loading nails. Do not
load Nails with Trigger (56) or Safety
(37) depressed.
3. Pull the Feeder Shoe (69) all the way
to the rear, until it latches.
4. Orient a strip of nails with the tips
down and drop the strip of nails into
Magazine (71).
5. Slide the strip of 60 10-Gauge nails
forward in Magazine.
6. Unlatch the Feeder Shoe (69) and
allow Feeder Shoe to slide forward
against strip of nails.
Operating Framing Nailer
1. Adjust the Exhaust Cover (4) to direct
as desired.
2. To re a nail, place the nose of the
Nailer on the workpiece. The Nailer
should not re if the Safety (37) is
not depressed. Once the Safety
is depressed, gently and briey
squeeze the Trigger once to re
one nail. Release the Trigger.
Do not re repeatedly; nails could
bounce off on one another, damaging
the workpiece or causing personal
injury.
3. Move the Nailer to another spot
on the workpiece and squeeze the
Trigger again to re another nail.
Continue ring nails as needed.
4. When the work is completed, discon-
nect the air supply and remove the
nails from the nailer.
OPERATING FRAMING
NAILER
1. The depth to which a nail is driven is
controlled by the Safety (37).
2. To adjust the depth of drive, loosen
the Screw (39). Slide Safety up or
down to the desired position. Then,
re-tighten the Screw. Note: Sliding
Safety upward increases the depth
of drive. Sliding Safety downward
decreases the depth of drive.
3. Test re a nail, and check its depth of
drive. Repeat Step #2 as necessary
to achieve the desired depth of drive.

SKU 98733 For technical questions, please call 1-800-444-3353. Page 11
Clearing Jams
WARNING! Anytime any
maintenance or repairs are
done (including clearing
jams), wear ANSI-approved
impact safety goggles and appro-
priate hearing protection. THEN:
1. Disconnect the Framing Nailer
from its air supply.
2. Empty the Magazine (71) complete-
ly.
3. Try to re the Nailer into a piece of
scrap wood or ooring to ensure
that there is no trapped air in the
system.
4. Always leave Magazine open dur-
ing maintenance. The Magazine
is spring-loaded and may cause
parts or a nail to y out of Nailer.
5. Always re the Trigger repeatedly to
make sure all of the air is expended
from the Nailer.
6. If a nail is jammed in the discharge
area, simply remove it with pliers.
7. If a nail is jammed in the magazine,
pull the Feeder Shoe (69) all the way
back to the disengaged position.
Using a screwdriver (not included),
attempt to release the jammed nail by
probing any of the three openings in
the Magazine to release the nail. Pull
out the jammed nail and the remain-
der of the nail strip that is still in the
magazine.
8. Dispose of the remaining nail strip;
it may be bent or damaged in some
other way. Reload the magazine with
a new nail strip.
9. Pull back on the Feeder Shoe and
with your other hand, pull the tab
down on the Lock (75) and guide the
Feeder Shoe back into position.
10. Be careful. When pulling back
the Tab, it will spring forward with
force. Keep your ngers clear when
releasing.
11. If you are unable to clear the nail
jam using the method prescribed
above, the tool should be taken to
a qualied service technician for
proper servicing.
WARNING! Anytime any
maintenance or repairs are
done (including clearing
jams), wear ANSI-approved
impact safety goggles and appro-
priate hearing protection. THEN:
1. Disconnect the Framing Nailer
from its air supply.
2. Empty the Magazine (71) complete-
ly.
3. Try to re the Nailer into a piece of
scrap wood or ooring to ensure
that there is no trapped air in the
system.
4. Always leave Magazine open dur-
ing maintenance. The Magazine
is spring-loaded and may cause
parts or a nail to y out of Nailer.

SKU 98733 For technical questions, please call 1-800-444-3353. Page 12
USER-MAINTENANCE
INSTRUCTIONS
Procedures not specically
explained in this manual
must be performed only by a
qualied technician.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Always
disconnect Nailer from its
compressed air supply and
safely discharge any residual
air pressure in the tool before
performing any inspection,
maintenance, or cleaning
procedures.
TO PREVENT SERIOUS
INJURY FROM TOOL
FAILURE: Do not use
damaged equipment. If
abnormal noise, vibration,
or leaking air occurs, have
the problem corrected before
further use.
TO PREVENT EXPLOSION:
Lubricate tool only with
specied lubricants.
Lubricate the air inlet using
only pneumatic tool oil.
Lubricate internal mechanism
using only white lithium
grease. Other lubricants may
damage the mechanism and
may be highly ammable,
causing an explosion.
Cleaning, Maintenance, and
Lubrication
Note: Anytime inspection, maintenance
and cleaning are done:
1. Disconnect the Framing Nailer
from its air supply.
2. Empty Magazine (71) completely.
3. Try to re the Nailer into a piece of
scrap wood or ooring to ensure
that it is disconnected and inca-
pable of ring any nails.
4. Always leave Magazine open dur-
ing maintenance. The Magazine
is spring-loaded and may cause
parts or a nail to y out of Nailer
5. BEFORE EACH USE, inspect gener-
al condition of Framing Nailer. Check
for loose screws, misalignment or
binding of moving parts, jammed
nails, cracked or broken parts, dam-
aged air supply hose, and any other
condition that may affect the safe
operation of this tool. If abnormal
noise or vibration occurs, immediately
disconnect the Nailer from its com-
pressed air supply source and have
the problem corrected before further
use. Do not use damaged equipment.
6. PERIODICALLY, use a premium
quality, lightweight oil to lubricate all
moving parts.
7. When necessary, wipe with damp
cloth.
8. Store in a clean, dry and safe location
out of reach of children.
9. All maintenance, service or repairs
not listed in this manual are only
to be attempted by a qualied ser-
vice technician.

SKU 98733 For technical questions, please call 1-800-444-3353. Page 13
Troubleshooting
Problem Possible Causes Likely Solutions
Air leaking in
Cylinder Cap (8A).
1. Loose Screw (6).
2. O-ring (9A) is cracked or worn.
1. Tighten and recheck.
2. Replace O-ring.
Lack of power.
Slow to cycle.
Low power when
shooting and
returning.
1. Tool is too dry.
2. Air pressure too low.
3. Exhaust blocked.
1. Add about 3 drops of pneumatic tool oil into
the Air Plug (83).
2. Check to make sure regulator on air
compressor is set between 70 PSI and 120
PSI. (70 PSI is the minimum where the Nailer
may work. If power is too low, set it between
100-120 PSI.)
3. Clean exhaust channel.
Not shooting
fasteners or
only intermittent
feeding.
1. Damaged Torsion Spring (76).
2. Wrong size of fasteners.
3. Magazine (71) is dirty.
1. Replace Spring.
2. Use 2-3/16” to 3-1/2”, .113”-.131” diameter
Nails.
3. Clean Magazine.
Fastener is
jammed in tool.
1. Feeder Shoe (69) is broken or
worn.
2. Bent fasteners.
1. Replace Feeder Shoe.
2. Remove bent fasteners. Replace with new
Nails.
Follow all safety precautions whenever diagnosing or servicing the
tool. Disconnect air supply before service.
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.
REV 09g,09i; 09l

SKU 98733 For technical questions, please call 1-800-444-3353. Page 14
Part Description
1 Screw
2 Spring Washer
3 Bushing
4 Exhaust Cover
5 Seal
6 Screw
7 Spring Washer
8A Cylinder Cap
9A O-ring sealing
10 Washer
11 Valve Seat
12 Spring
13 O-Ring (M57.5 x 3.6)
14 O-Ring (M72.4 x 3.5)
15 Valve
16 Screw
17 Cylinder Seal
18 Collar
19 O-Ring (M54.4 x 4)
20 Piston
21 Cylinder
22 O-Ring (M67 x 3)
23 O-Ring (M60.25 x 2.5)
24 Restrictive Seal
25 O-Ring (M97.5 x 3.5)
26 Bumper A
27 Bumper B
28 Body
Part Description
29 O-Ring (M62.3 x1.8)
30 Nose
31 Spring Washer
32 Screw
33 Spring
34 Safety Bracket
35 Screw
36 Bushing
37 Safety
38 Washer
39 Screw
40 Rubber Cover
41 Spring Pin
42 Safety Guide
43 O-Ring (M18.4 x 2.4)
44 O-Ring (M20.3 x 1.5)
45 Valve Set
46 O-Ring (M9.5 x 1.9)
47 O-Ring (M10.3 x 1.9)
48A Trigger Valve Head
49 O-Ring (M12.8 x 1.9)
50 Spring
51 O-Ring (M5.5 x 1.5)
52 Trigger Valve Stem
53 O-Ring (M24.8 x 2)
54 Trigger Valve Guide
55 Trigger Spring
56 Trigger
Part Description
57 Seal
58 Pin
59 Rail
60 Washer
61 Nut
62 Washer
63 Coil Spring
64 Pin
65 Bushing
66 Screw
67 Block
68 Washer
69 Feeder Shoe
70 Screw
71 Magazine
72 Screw
73 Support
74 Nut
75 Lock
76 Torsion Spring
77 Bushing
78 Nut
79 Nut
80 Soft Grip Sleeve
81 O-Ring (65.4x2.5)
82 End Cap
83 Air Plug
PARTS LIST
REV 09g

SKU 98733 For technical questions, please call 1-800-444-3353. Page 15
ASSEMBLY DIAGRAM
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 avail-
able individually as replacement parts.
REV 09g

SKU 98733 For technical questions, please call 1-800-444-3353. Page 16
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 ac-
tivity, 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 com-
plaint must accompany the merchandise. If our inspection veries the defect, we will ei-
ther 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 re-
paired 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 specic 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 • [phone]