Harbor Freight Tools Nail Gun 98733 User 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  
 
c. Keep bystanders, children, and  
visitors away while operating the  
tool. Distractions are able to result in  
the loss of control of the tool.  
conditions. Wear heavy-duty work  
gloves during use. Wear a full face  
shield if you are producing metal fil-  
ings or wood chips.  
g.  
h.  
Always wear eye protec-  
tion. Wear ANSI-ap-  
proved safety goggles with  
side shields during use.  
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 influ-  
ence of drugs, alcohol, or medica-  
tion. A moment of inattention while  
operating the tool increases the risk  
of injury to persons.  
Always wear hearing  
protection when using  
the tool. Prolonged expo-  
sure to high intensity noise  
is able to cause hearing loss.  
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.  
tool use and care  
a.  
Avoid unintentional  
misfires. 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 finger 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.  
c. Avoid unintentional starting. Be  
sure the switch is off before con-  
necting to the air supply. Do not  
carry the tool with your finger on the  
switch or connect the tool to the air  
supply with the switch on.  
b. Do not load nails with Trigger or  
safety depressed. Unintentional fir-  
ing may occur. Always assume Nailer  
contains fasteners.  
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.  
c. Do not load fasteners when Nailer  
is connected to air hose. Always  
assume tool contains fasteners. Unin-  
tentional firing may occur.  
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.  
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.  
f.  
use safety equipment. A dust mask,  
non-skid safety shoes and a hard  
hat must be used for the applicable  
SKU 98733  
For technical questions, please call 1-800-444-3353.  
Page 3  
 
e. Fire nails into an appropriate work  
surface only. Do not attempt to fire  
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 fire this tool into the air  
or point it toward yourself or another  
person.  
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.  
f.  
hold tool away from head and  
body during use. Tool may kick  
back, causing injury.  
g. Do not fire fasteners too close to  
edge of workpiece. They may split  
the workpiece and fly free, causing  
personal injury.  
o. 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.  
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.  
Service  
a. Tool service must be performed  
only by qualified repair personnel.  
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.  
b. When servicing a tool, use only  
identical replacement parts. use  
only authorized parts.  
c. use only the lubricants supplied  
with the tool or specified by the  
manufacturer.  
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.  
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  
l.  
Store the tool when it is idle out of  
reach of children and other un-  
Rev 09l  
SKU 98733  
For technical questions, please call 1-800-444-3353.  
Page 4  
 
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.  
Symbol Definitions  
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.  
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.  
WARNING marking concerning Risk  
of Respiratory Injury. Wear NIOSH-  
approved dust mask/respirator.  
WARNING marking concerning Risk  
of Explosion.  
SAVE thESE  
INStRuctIONS.  
Specific 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.  
SYMBOLS ANd  
SpEcIFIc SAFEtY  
INStRuctIONS  
Symbol Definitions  
Symbol  
property or statement  
No-load speed  
n
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:  
o
Revolutions or reciprocation per  
minute  
.../min  
pSI  
Pounds per square inch of pressure  
Foot-pounds of torque  
ft-lb  
Blows per minute  
BpM  
cFM  
ScFM  
Npt  
• 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  
Cubic Feet per Minute flow  
Cubic Feet per Minute flow at  
standard conditions  
National pipe thread, tapered  
National pipe thread, straight  
NpS  
chart continued in next column.  
Rev 09l  
SKU 98733  
For technical questions, please call 1-800-444-3353.  
Page 5  
 
those dust masks that are specially  
designed to filter out microscopic  
particles. (California Health & Safety  
Code § 25249.5, et seq.)  
arms and shoulders. To reduce the risk of  
vibration-related injury:  
1. Anyone using vibrating tools regu-  
larly 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, 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 fingers), seek medical  
advice as soon as possible.  
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.  
2. Do not smoke during use. Nico-  
tine reduces the blood supply to the  
hands and fingers, increasing the risk  
of vibration-related injury.  
6. Attach all accessories properly to the  
tool before connecting the air sup-  
ply. A loose accessory may detach or  
break during operation.  
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.  
7. Obey the manual for the air compres-  
sor used to power this tool.  
5. Include vibration-free periods each  
day of work.  
8. Install in-line shutoff valve to allow  
immediate control over air supply in  
emergency, even if hose is ruptured.  
6. Grip tool as lightly as possible (while  
still keeping safe control of it). Let  
the tool do the work.  
9. Do not lay tool down until it has com-  
pletely stopped. Moving parts can  
grab surface and lead to control loss. 7. To reduce vibration, maintain tool as  
explained in this manual. If abnormal  
Vibration precautions  
vibration occurs, stop immediately.  
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,  
SAVE thESE  
INStRuctIONS.  
SKU 98733  
For technical questions, please call 1-800-444-3353.  
Page 6  
 
Air Supply  
FuNctIONAL dEScRIptION  
tO pREVENt  
Specifications  
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.  
Working Air  
70-120 PSI* (Depending on  
Pressure Range nail length and wood density)  
Air Inlet  
1/4” -18 NPT  
.113”-.131” diameter, 2-3/16” to  
3-1/2” L, 21° Nails  
Nail Type  
Fastener Type  
Plastic Collated Full Head Nails  
Magazine  
Capacity  
60 Nails  
3 CFM @ 90 PSI  
(Intermittent use)  
12 CFM at 90 PSI  
Air Consumption  
(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.  
1. Incorporate an in-line oiler, shut-off  
valve, regulator with pressure gauge,  
and filter 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: For additional information regarding  
the parts listed in the following pages,  
refer to the Assembly Diagram near  
the end of this manual.  
unpacking  
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.  
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.  
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 7  
 
ponents, such as a connector and  
quick coupler, will make operation  
more efficient, but are not required.  
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.  
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.  
To Attach An Air Connector:  
1. Attach a 1/4” Connector (not  
included) to the Air Plug (83) on the  
Nailer.  
Note: Air flow, and therefore tool perfor-  
mance, can be hindered by under-  
sized air supply components.  
2. Wrap about 3” of pipe thread seal  
tape (not included) onto threads of  
the Connector before attaching it to  
the Air Plug.  
3. The air hose must be long enough  
to reach the work area with enough  
extra length to allow free movement  
while working.  
3. Connect the 3/8” air source hose to  
the Nailer.  
4. Close the in-line safety valve be-  
tween the compressor and the tool.  
4. Set the air pressure on compressor to  
70 to 120 PSI operating pressure. Do  
not exceed 120 maximum PSI.  
5. Turn on the air compressor according  
to the manufacturer’s directions and  
allow it to build up pressure until it  
cycles off.  
5. Check air connection for leaks. If any  
are present, disconnect the Nailer  
from air source hose.  
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.  
Rev 09l  
SKU 98733  
For technical questions, please call 1-800-444-3353.  
Page 8  
 
Figure 1  
OpERAtING INStRuctIONS  
Trigger (56)  
Air Plug (83)  
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.  
Magazine (71)  
Inspect tool before use, looking  
for damaged, loose, and  
missing parts. If any problems  
are found, do not use tool until  
repaired.  
Safety (37)  
3.  
The Nailer should not fire if Safety  
(37) is not depressed against the  
workpiece.  
testing the Single Sequential  
Safety trip Mechanism  
4.  
5.  
Make sure Trigger (56) and Safety  
(37) move freely, without sticking.  
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.  
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 (fire). If it cycles (fires), stop  
immediately and have it repaired by  
a qualified service technician.  
tO pREVENt SERIOuS  
INjuRY: do not adjust or  
tamper with any control or  
component in a way not  
specifically explained within  
this manual. Improper  
adjustment can result in  
tool failure or other serious  
hazards.  
7.  
Hold tool away or off of workpiece.  
The Safety should return to its  
original position. Squeeze Trigger.  
The tool should not cycle (fire).  
If the tool fires, stop immediately  
and have it repaired by a qualified  
service technician.  
8.  
Depress Safety against workpiece  
and squeeze Trigger. the tool  
must cycle (fire) only once. Re-  
lease the Trigger and squeeze it  
again. The tool must cycle (fire)  
only once. With the Trigger held,  
carefully lift the Nailer and press it  
against the workpiece again. the  
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).  
tool must not cycle (fire). If it fails  
Rev 09l  
SKU 98733  
For technical questions, please call 1-800-444-3353.  
Page 9  
 
to perform in the manner explained  
in bold, have it repaired by a quali-  
fied service technician.  
Operating Framing Nailer  
1. Adjust the Exhaust Cover (4) to direct  
as desired.  
WARNING! disconnect the Nailer  
from the air compressor when-  
ever loading or servicing.  
2. To re a nail, place the nose of the  
Nailer on the workpiece. The Nailer  
should not fire if the Safety (37) is  
not depressed. Once the Safety  
is depressed, gently and briefly  
squeeze the Trigger once to fire  
one nail. Release the trigger.  
Do not fire repeatedly; nails could  
bounce off on one another, damaging  
the workpiece or causing personal  
injury.  
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  
3. Move the Nailer to another spot  
on the workpiece and squeeze the  
Trigger again to fire another nail.  
Continue firing nails as needed.  
1. cAutION! Make sure Nailer is not  
attached to the air hose when loading  
tool.  
4. When the work is completed, discon-  
nect the air supply and remove the  
nails from the nailer.  
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.  
OpERAtING FRAMING  
NAILER  
3. Pull the Feeder Shoe (69) all the way  
to the rear, until it latches.  
1. The depth to which a nail is driven is  
controlled by the Safety (37).  
4. Orient a strip of nails with the tips  
down and drop the strip of nails into  
Magazine (71).  
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.  
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.  
3. Test fire 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 10  
 
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.  
clearing jams  
WARNING! Anytime any  
maintenance or repairs are  
done (including clearing  
10. Be careful. When pulling back  
the tab, it will spring forward with  
force. Keep your fingers clear when  
releasing.  
jams), wear ANSI-approved  
impact safety goggles and appro-  
priate hearing protection. thEN:  
1. disconnect the Framing Nailer  
from its air supply.  
11. If you are unable to clear the nail  
jam using the method prescribed  
above, the tool should be taken to  
a qualified service technician for  
proper servicing.  
2. Empty the Magazine (71) complete-  
ly.  
3. Try to fire the Nailer into a piece of  
scrap wood or flooring to ensure  
that there is no trapped air in the  
system.  
WARNING! Anytime any  
maintenance or repairs are  
done (including clearing  
jams), wear ANSI-approved  
impact safety goggles and appro-  
priate hearing protection. thEN:  
4. Always leave Magazine open dur-  
ing maintenance. the Magazine  
is spring-loaded and may cause  
parts or a nail to fly out of Nailer.  
1. disconnect the Framing Nailer  
from its air supply.  
5. Always fire the Trigger repeatedly to  
make sure all of the air is expended  
from the Nailer.  
2. Empty the Magazine (71) complete-  
ly.  
6. If a nail is jammed in the discharge  
3. Try to fire the Nailer into a piece of  
scrap wood or flooring to ensure  
that there is no trapped air in the  
system.  
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.  
4. Always leave Magazine open dur-  
ing maintenance. the Magazine  
is spring-loaded and may cause  
parts or a nail to fly out of Nailer.  
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.  
SKU 98733  
For technical questions, please call 1-800-444-3353.  
Page 11  
 
1. disconnect the Framing Nailer  
from its air supply.  
uSER-MAINtENANcE  
INStRuctIONS  
2. Empty Magazine (71) completely.  
Procedures not specifically  
explained in this manual  
must be performed only by a  
qualified technician.  
3. Try to fire the Nailer into a piece of  
scrap wood or flooring to ensure  
that it is disconnected and inca-  
pable of firing any nails.  
tO pREVENt  
SERIOuS INjuRY  
FROM AccIdENtAL  
4. Always leave Magazine open dur-  
ing maintenance. the Magazine  
is spring-loaded and may cause  
parts or a nail to fly out of Nailer  
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.  
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.  
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.  
6. pERIOdIcALLY, use a premium  
quality, lightweight oil to lubricate all  
moving parts.  
tO pREVENt ExpLOSION:  
Lubricate tool only with  
specified lubricants.  
7. When necessary, wipe with damp  
cloth.  
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 flammable,  
causing an explosion.  
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 qualified ser-  
vice technician.  
cleaning, Maintenance, and  
Lubrication  
Note: Anytime inspection, maintenance  
and cleaning are done:  
SKU 98733  
For technical questions, please call 1-800-444-3353.  
Page 12  
 
troubleshooting  
problem  
Air leaking in  
possible causes  
1. Loose Screw (6).  
Likely Solutions  
1. Tighten and recheck.  
Cylinder Cap (8A).  
2. O-ring (9A) is cracked or worn. 2. Replace O-ring.  
Lack of power.  
Slow to cycle.  
Low power when  
shooting and  
returning.  
1. Tool is too dry.  
1. Add about 3 drops of pneumatic tool oil into  
the Air Plug (83).  
2. Air pressure too low.  
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. Exhaust blocked.  
3. Clean exhaust channel.  
Not shooting  
fasteners or  
only intermittent  
feeding.  
1. Damaged Torsion Spring (76). 1. Replace Spring.  
2. Wrong size of fasteners.  
2. Use 2-3/16” to 3-1/2”, .113”-.131” diameter  
Nails.  
3. Magazine (71) is dirty.  
3. Clean Magazine.  
Fastener is  
jammed in tool.  
1. Feeder Shoe (69) is broken or 1. Replace Feeder Shoe.  
worn.  
2. Bent fasteners.  
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 13  
 
pARtS LISt  
part  
description  
part  
description  
29 O-Ring (M62.3 x1.8)  
30 Nose  
part  
description  
1
2
3
4
5
6
7
Screw  
57 Seal  
58 Pin  
59 Rail  
60 Washer  
61 Nut  
62 Washer  
63 Coil Spring  
64 Pin  
65 Bushing  
66 Screw  
Spring Washer  
Bushing  
Exhaust Cover  
Seal  
Screw  
Spring Washer  
31 Spring Washer  
32 Screw  
33 Spring  
34 Safety Bracket  
35 Screw  
36 Bushing  
8A Cylinder Cap  
9A O-ring sealing  
10 Washer  
37 Safety  
38 Washer  
11 valve Seat  
39 Screw  
67 Block  
12 Spring  
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  
68 Washer  
69 Feeder Shoe  
70 Screw  
71 Magazine  
72 Screw  
73 Support  
74 Nut  
75 Lock  
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  
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  
27 Bumper B  
28 Body  
REV 09g  
SKU 98733  
For technical questions, please call 1-800-444-3353.  
Page 14  
 
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 15  
 
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 equip-  
ment). 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 ap-  
ply 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 verifies 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 specific legal rights and you may also have other rights  
which vary from state to state.  
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353  
SKU 98733  
For technical questions, please call 1-800-444-3353.  
Page 16  
 

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