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.

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.

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.

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.

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.

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

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.

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.

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

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 ﬁre, 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.