Harbor Freight Tools Nail Gun 98917 User Manual

FRAMING NAILER  
28 DEGREE  
98917  
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; 09l  
 
c. Keep bystanders, children, and  
visitors away while operating the  
tool. Distractions are able to result in  
the loss of control of the tool.  
be used for the applicable conditions.  
Wear heavy-duty work gloves during  
use. Wear a full face shield if you are  
producing metal filings 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. Al-  
though Nailer has a full  
sequential safety trip  
mechanism, do not point  
tool towards yourself or  
anyone whether it contains  
nails or not.  
c. Avoid unintentional starting. Be  
sure the trigger (56) is off 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 on.  
b. Do not load fasteners when Nailer  
is connected to air hose. Always  
assume tool contains fasteners. Unin-  
tentional firing may occur.  
c. 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.  
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.  
d. hold tool away from head and  
body during use. Tool may kick  
back, causing injury.  
f.  
use safety equipment. A  
dust mask, non-skid safety  
shoes and a hard hat must  
e. Do not fire nails too close to edge  
of workpiece. They may split the  
SKU 98917  
For technical questions, please call 1-800-444-3353.  
Page 3  
 
workpiece and fly free, causing per-  
sonal injury.  
m. 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.  
f.  
carry tool safely. Carry tool by  
handle.  
g. 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.  
b. When servicing a tool, use only  
identical replacement parts. use  
only authorized parts.  
h. 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.  
c. use only the lubricants supplied  
with the tool or specified by the  
manufacturer.  
i.  
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  
pressure or within the rated pressure  
range as marked on the tool (60 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.  
j.  
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.  
k. Maintain the tool with care. Keep  
tool clean. A properly maintained tool,  
reduces the risk of binding and is  
easier to control.  
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.  
l.  
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.  
SAVE thESE  
INStRuctIONS.  
Rev 09l  
SKU 98917  
For technical questions, please call 1-800-444-3353.  
Page 4  
 
Specific Safety Instructions  
SYMBOLS AND  
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.  
Symbol Definitions  
Symbol  
property or statement  
No-load speed  
n
o
Revolutions or reciprocation per  
minute  
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:  
.../min  
pSI  
Pounds per square inch of pressure  
Foot-pounds of torque  
ft-lb  
Blows per minute  
BpM  
cFM  
ScFM  
Npt  
Cubic Feet per Minute flow  
• 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  
those dust masks that are specially  
designed to filter out microscopic  
particles. (California Health & Safety  
Code § 25249.5, et seq.)  
Cubic Feet per Minute flow at  
standard conditions  
National pipe thread, tapered  
National pipe thread, straight  
NpS  
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.  
3. Take caution, as some woods contain  
preservatives such as copper chro-  
mium arsenate (CCA) which can be  
toxic. When nailing these materials,  
extra case 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-  
SKU 98917  
For technical questions, please call 1-800-444-3353.  
Page 5  
 
ductive harm). (California Health &  
Safety code § 25249.5, et seq.)  
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.  
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.  
2. Do not smoke during use. Nico-  
tine reduces the blood supply to the  
hands and fingers, increasing the risk  
of vibration-related injury.  
7. Obey the manual for the air compres-  
sor used to power this tool.  
3. Wear suitable gloves to reduce the  
vibration effects on the user.  
8. Install in-line shutoff valve to allow  
immediate control over air supply in  
emergency, even if hose is ruptured.  
4. Use tools with the lowest vibration  
when there is a choice between dif-  
ferent processes.  
9. Do not lay tool down until it has com-  
pletely stopped. Moving parts can  
grab surface and lead to control loss.  
5. Include vibration-free periods each  
day of work.  
10. The pressure setting must not exceed  
the job site regulations/restrictions.  
6. Grip tool as lightly as possible (while  
still keeping safe control of it). Let  
the tool do the work.  
11. The pressure setting on any Nailer  
should not exceed 90 PSI when  
working with workpieces that have a  
thickness of less than 1-3/4”.  
7. To reduce vibration, maintain tool as  
explained in this manual. If abnormal  
vibration occurs, stop immediately.  
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:  
SAVE thESE  
INStRuctIONS.  
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  
SKU 98917  
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.  
70-120 PSI  
Working Air  
(Depending on nail length and  
Pressure  
wood density)  
Air Inlet  
1/4” -18 NPT  
Magazine  
Capacity  
90 Nails (Not Included)  
Magazine Angle 28°  
Air  
8 CFM @ 60 PSI  
Consumption  
10 CFM @ 100 PSI  
Safety Trigger  
Sequential  
Paper-Collated Clip Head Nails  
Wire-Collated Full Head Nails  
Fastener Type  
0.113” to 0.131” Shank Dia.  
2-3/16” to 3-9/16” L / 28° Angle  
Nail Type  
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  
When unpacking, check to make sure  
that the item is intact and undamaged. If  
any parts are missing or broken, please  
call Harbor Freight Tools at the number  
shown throughout the manual as soon as  
possible.  
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.  
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-  
Rev 09l  
SKU 98917  
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) prior to  
operation.  
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.  
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.  
SKU 98917  
For technical questions, please call 1-800-444-3353.  
Page 8  
 
3. Completely empty the Magazine (71)  
of Nails.  
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.  
4. The Nailer should not fire if the Nose  
Safety Guide (42) is not depressed  
against the workpiece.  
5. Make sure the Trigger (56) and Nose  
Safety Guide move freely, without  
sticking.  
Inspect tool before use, looking  
for damaged, loose, and  
missing parts. If any problems  
are found, do not use tool until  
repaired.  
6. Connect the air supply to the tool at  
the Air Plug (83). Do not exceed the  
maximum 120 pSI.  
7. Test the tool by depressing the Nose  
Safety Guide 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 techni-  
cian.  
tEStING thE FuLL SEQuENtIAL  
SAFEtY tRIp MEchANISM  
tO pREVENt  
SERIOuS INjuRY  
FROM AccIDENtAL  
OpERAtION: Detach the air  
supply, safely discharge any  
residual air pressure in the  
tool, and release the throttle  
and/or turn the switch to its  
off position before performing  
any inspection, maintenance,  
or cleaning procedures.  
8. Hold the tool away or off the work-  
piece in a safe direction. The Nose  
Safety Guide should return to its  
original position. Squeeze the Trig-  
ger. the tool should not cycle  
(fire). If the tool 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.  
9. Depress the Nose Safety Guide  
against the workpiece and squeeze  
the Trigger. the tool must cycle  
(fire) only once. Release the Trigger  
and squeeze it again. the tool must  
not cycle (fire). With the Trigger  
held, carefully lift the Nailer and press  
it against the workpiece again. the  
tool must not cycle (fire). If it fails  
to perform in the manner explained in  
bold, have it repaired by a qualified  
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.  
service technician.  
2. Make sure the tool is disconnected  
from its air supply.  
Rev 09l  
SKU 98917  
For technical questions, please call 1-800-444-3353.  
Page 9  
 
Loading Nails:  
Operating Nailer  
1. Attach the Nailer to the air supply at  
the Air Plug (83).  
1. WARNING! Always wear ANSI-  
approved safety goggles  
2. Start your compressor and check the  
pressure, making sure you do not  
exceed the maximum 120 pSI.  
when reloading or performing  
any other maintenance on Nailer.  
Other people in the work area must  
also wear ANSI-approved safety  
goggles.  
3. Rotate the Exhaust Cover (4) so that  
the exhaust air blast will be directed  
away from the operator.  
2. WARNING! Make sure Nailer is not  
attached to the air hose when load-  
ing tool.  
4. To re, place the Nose Safety Guide  
(42) of the Nailer on the workpiece.  
The Nailer should not fire if the Nose  
is not depressed.  
3. Note: this Nailer only uses 28°  
paper-collated clip head nails and  
wire collated full head nails.  
5. Once depressed, gently and briefly  
squeeze the Trigger (56) once; one  
Nail will be fired.  
4. Pull the Feeder Shoe (69) all the way  
to the rear until it latches.  
6. Do not press the Nose against the  
workpiece with extra force. Allow the  
tool to do the work. Always allow the  
tool to recoil off the work surface.  
5. Orient a strip of Nails (not included)  
with tips down and drop the Nails into  
the Magazine (71).  
6. Slide the Nails forward in the Maga-  
zine. The Magazine will hold 90  
Nails.  
7. When finished using the Nailer,  
always disconnect the tool from its  
air supply. Empty the Magazine (71)  
completely of Nails.  
7. Pull Feeder Shoe backward and then  
press Lock (75) to allow Feeder Shoe  
to slide forward against the Nails.  
8. Attempt to fire the Nailer into a piece  
of scrap wood to ensure it is discon-  
nected and is incapable of firing any  
Nails.  
INSERT NAILS  
HERE  
Trigger (56)  
9. Make sure to store the Nailer in a  
clean, dry, safe location out of reach  
of children.  
Magazine  
(71)  
Feeder Shoe (69)  
Nose Safety Guide (42)  
Rev 09l  
SKU 98917  
For technical questions, please call 1-800-444-3353.  
Page 10  
 
9. Remove the Screw (35) from each  
side of the Magazine. (One on each  
Magazine side.) Remove the two  
Nuts (74).  
clearing jams  
WARNING! Anytime any  
maintenance or repairs are  
done (including clearing  
10. Slide Magazine back, off of the Nose.  
jams), wear ANSI-approved  
safety goggles and appropriate  
hearing protection. thEN:  
11. After clearing the jammed nail, re-  
assemble Nailer Magazine in reverse  
order.  
1. Disconnect the Framing Nailer  
from its air supply.  
12. cAutION! Make sure the Nose (30)  
moves freely.  
2. Empty Magazine (71) completely.  
13. Reload the Nailer with Nails. Then  
reconnect the air supply to tool.  
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.  
14. Press Nose Safety Guide (42) against  
a piece of scrap wood and test fire  
Nailer several times while check-  
ing for operation. If the Nailer fails to  
perform properly, immediately discon-  
tinue use and have tool repaired by  
qualified service technician.  
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.  
5. Occasionally, a nail may become  
jammed in firing mechanism of the  
Nailer, making the tool inoperable.  
15. When finished working, disconnect  
the air supply. Remove the Nails.  
Then, store the Nailer in a clean, dry,  
safe location out of reach of children.  
6. To remove a jammed nail, disconnect  
the tool from its air supply and empty  
the Magazine completely of nails.  
Anytime any maintenance or re-  
pairs are done, FIRSt:  
7. Attempt to fire Nailer into piece of  
scrap wood to ensure it is  
1. Disconnect the Floor Nailer from  
its air supply.  
disconnected and incapable of firing.  
8. Use a pair of needle nose pliers to  
remove a jammed nail from back of  
Nose (30). If a jammed nail cannot  
be removed as described, it may be  
necessary to disassemble the Maga-  
zine as follows:  
2. Empty the Magazine (71) com-  
pletely.  
3. Try to fire the Nailer into a piece  
of scrap wood or flooring to en-  
sure that it is disconnected and  
incapable of firing any nails.  
cAutION! If you are not clear about  
how to remove and re-assemble the  
Magazine to clear a jammed nail,  
have a qualified service technician  
perform this procedure.  
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.  
SKU 98917  
For technical questions, please call 1-800-444-3353.  
Page 11  
 
4. Inspect the air supply screen located  
in the End Cap (82) before each use.  
Clean or replace as necessary. Dirt  
in the air supply is a major cause of  
pneumatic tool wear. Use a filter in  
the compressed air system for better  
performance and longer tool life. The  
filter must have adequate flow capac-  
ity for the specific application.  
uSER-MAINtENANcE  
INStRuctIONS  
Procedures not specifically  
explained in this manual  
must be performed only by a  
qualified technician.  
tO pREVENt  
SERIOuS INjuRY  
FROM AccIDENtAL  
5. Clean the external parts of the Nailer  
with a clean cloth and mild detergent  
or non-flammable solvent. Then dry.  
OpERAtION:  
turn off the tool, detach the  
air supply, safely discharge  
any residual air pressure in  
the tool, and release the  
trigger before performing any  
inspection, maintenance, or  
cleaning procedures.  
6. Store in a clean, dry and safe location  
out of reach of children.  
All maintenance, service or repairs  
not listed in this manual are only  
to be attempted by a qualified ser-  
vice technician.  
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.  
Record product’s Serial Number  
here:  
cleaning, Maintenance, and  
Lubrication  
Note: If product has no serial number,  
record month and year of purchase  
instead.  
Note: Anytime inspection, maintenance  
and cleaning are done:  
Note: Some parts are listed and shown for  
illustration purposes only, and are not  
available individually as replacement  
parts.  
1. Disconnect the Floor Nailer from  
its air supply.  
2. Empty the Magazine (71) complete-  
ly.  
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/staples.  
SKU 98917  
For technical questions, please call 1-800-444-3353.  
Page 12  
 
troubleshooting  
Follow all safety precautions whenever diagnosing or servicing the  
tool. Disconnect air supply before service.  
problem  
possible Solution  
Air leak near top of tool.  
1. Tighten all screws on the cylinder cap. (See Assy. Diagram.)  
2. Have a qualified service technician install a head valve piston set.  
Tool does not work.  
1. Check all air connections for leaks.  
2. Make sure to fully depress the nose of the workpiece when  
attempting to fire a nail.  
3. Check for nail jams. Clear the jam if necessary.  
4. Have a qualified service technician check out the tool.  
Sluggish operation.  
1. Make sure the compressor regulator is set below 120 PSI. Make  
sure the compressor used produces sufficient C.F.M. to operate the  
Nailer.  
2. Check all air connections for leaks.  
3. Have a qualified service technician install a head valve piston set.  
Air leak near bottom of tool. 1. Tighten all screws.  
2. Have a qualified service technician replace the bumper or head  
valve piston set.  
Poor return after firing tool. 1. Have a qualified service technician clean the interior of the tool and/  
or replace the bumper or head valve piston set.  
Weak driving force.  
1. Make sure the compressor regulator is set below 120 PSI.  
2. Check all air connections for leaks.  
3. Have a qualified service technician clean the interior of the tool  
and/or replace the bumper or head valve piston set.  
Poor feed.  
1. Have a qualified service technician clean the interior of the tool  
and/or lubricate the magazine and install a new magazine spring.  
Tool jamming too often.  
Other problems.  
1. Have a qualified service technician clean the interior of the tool  
and/or lubricate the magazine and install a new magazine spring.  
1. Have a qualified service technician check out the tool.  
Follow all safety precautions whenever diagnosing or servicing the  
tool. Disconnect air supply before service.  
Rev 09l  
SKU 98917  
For technical questions, please call 1-800-444-3353.  
Page 13  
 
pARtS LISt  
pARtS LISt  
part  
Description  
part  
Description  
1
2
3
4
5
6
7
Screw (M5 x 20)  
43 O-Ring (20.3 x 2.5)  
Spring Washer (Ø 5)  
Bushing  
Exhaust Cover  
Seal  
Screw (M6 x 30)  
Spring Washer (Ø 6)  
44 O-Ring (20.3 x 1.5)  
45 Valve Set  
46 O-Ring (9.5 x 1.9)  
47 O-Ring (10.3 x 1.9)  
48A Trigger Valve Head  
49 O-Ring (12.8 x 1.9)  
50 Spring  
51 O-Ring (5.5 x 1.5)  
52 Trigger Valve Stem  
53 O-Ring (24.8 x 2)  
54 Trigger Valve Guide  
55 Spring  
8A Cylinder Cap  
9A O-Ring sealing  
10 Washer  
11 Valve Seat  
12 Spring  
13 O-Ring (57.5 x 2.6)  
14 O-Ring (72.4 x 3.5)  
15 Valve  
56 Trigger  
57 Seal  
16 Screw (M6 x 8)  
17 Cylinder Seal  
18 Collar  
19 O-Ring (54.4 x 4)  
20 Piston Assembly  
21 Cylinder  
22 O-Ring (67 x 3)  
23 O-Ring (60.25 x s.5)  
24 Restrictive Plate  
25 O-Ring (97.5 x 3.5)  
26 Bumper A  
58 Pin  
59 Rail  
60 Washer (Ø 5)  
61 Nut (M4)  
62 Spring Washer (Ø 5)  
63 Coil Spring Assembly  
64 Pin  
65 Bushing  
66 Screw (M4 x 8)  
67 Block  
68 Spring Washer (Ø 4)  
69 Feeder Shoe  
70 Screw (M5 x 16)  
71 Magazine  
72 Screw (M4 x 16)  
73 Support  
27 Bumper B  
28 Body  
29 O-Ring (62.3 x 1.8)  
30 Nose  
31 Spring Washer (Ø 8)  
32 Screw (M8 x 25)  
33 Spring  
74 Nut (M5)  
75 Lock  
34 Safe Bracket A  
35 Screw (M5 x 12)  
36 Bushing  
76 Torsion Spring  
77 Bushing  
78 Nut (M4)  
37 Safe Bracket B  
38 Washer  
39 Screw (M5 x 10)  
40 Rubber Cover  
41 Spring Pin  
79 Nut (M6)  
80 Soft Grip Sleeve  
81 O-Ring (65.4 x 2.5)  
82 End Cap  
83 Air Plug  
42 Nose Safety Guide  
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  
SKU 98917  
For technical questions, please call 1-800-444-3353.  
Page 14  
 
ASSEMBLY DIAGRAM  
NOTE:  
Some parts are listed and show for illustration purposes only, and are not available individually as  
replacement parts.  
REV 09g  
SKU 98917  
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 98917  
For technical questions, please call 1-800-444-3353.  
Page 16  
 

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