Central Pneumatic PLASTIC CAP STAPLER 99637 Installation manual

PLASTIC CAP STAPLER
99637
SET UP AND OPERATING INSTRUCTIONS
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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 Manual 10f

SKU 99637 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, operating,
inspection, maintenance and cleaning pro-
cedures. Write the product’s serial number
in the back of the manual (or month and
year of purchase if product has no num-
ber). 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 pre-
cautions 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 Stapler.
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 Stapler in ex-
plosive atmospheres, such as in
the presence of ammable liquids,
gases, or dust. The Stapler is able
to create sparks resulting in the igni-
tion of the dust or fumes.
c. Keep bystanders, children, and
visitors away while operating the

SKU 99637 For technical questions, please call 1-800-444-3353. Page 3
Stapler. Distractions are able to re-
sult 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 Trigger (39) is off before
connecting to the air supply. Do not
carry the Stapler 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 Sta-
pler on. A wrench or a key that is left
attached 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 Stapler in unex-
pected 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.
g. Always wear eye protec-
tion. Wear ANSI-ap-
proved safety goggles.
h. Always wear hearing
protection when using
the Stapler. Prolonged
exposure to high intensity
noise is able to cause hearing loss.
i. Risk of Electric Shock. This tool
is not provided with an insulated
gripping surface. Contact with a
″live″ wire will also make exposed
metal parts of the tool ″live″ and
shock the operator.
j. Avoid body contact with grounded
surfaces such as pipes, radiators,
ranges and refrigerators. There is
an increased risk of electric shock if
your body is grounded.
k. Explore the workpiece to avoid
contact with hidden wiring. Thor-
oughly investigate the workpiece for
possible hidden wiring before per-
forming work. Contact with live wiring
will shock the operator.
Tool use and care
a. Use clamps or another practical
way to secure and support the
workpiece to a stable platform.
Holding the work by hand or against
the body is unstable and is able to
lead to loss of control.
b. Do not force the Stapler. Use the
correct tool for the application. The
correct tool will do the job better and
safer at the rate for which the tool is
designed.

SKU 99637 For technical questions, please call 1-800-444-3353. Page 4
c. Do not use the Stapler if the Trig-
ger (39) does not turn the tool on
or off. Any tool that cannot be con-
trolled with the Trigger is dangerous
and must be repaired.
d. Disconnect the Stapler 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, safely
discharge any residual air pressure,
and release the throttle and/or turn
the switch to its off position before
leaving the work area.
e. Store the Stapler when it is idle out
of reach of children and other un-
trained persons. A tool is dangerous
in the hands of untrained users.
f. Maintain the tool with care. Keep a
cutting tool sharp and clean. A prop-
erly maintained tool, with sharp cut-
ting edges reduces the risk of binding
and is easier to control.
g. Check for misalignment or bind-
ing of moving parts, breakage of
parts, and any other condition that
affects the Stapler’s operation.
If damaged, have the tool serviced
before using. Many accidents are
caused by poorly maintained tools.
There is a risk of bursting if the tool is
damaged.
h. Use only accessories that are
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 Stapler or specied by the
manufacturer.
Air source
a. Never connect to an air
source that is capable of
exceeding 110 psi. Over
pressurizing the tool may
cause bursting, abnormal operation,
breakage of the tool or serious injury
to persons. Use only clean, dry,
regulated compressed air at the rated
pressure or within the rated pressure
range as marked on the tool. Always
verify prior to using the tool that the
air source has been adjusted to the
rated air pressure or within the rated
air-pressure range.
b. Never use oxygen, carbon dioxide,
combustible gases or any bottled
gas as an air source for the tool.
Such gases are capable of explosion
and serious injury to persons.
SAVE THESE
INSTRUCTIONS.

SKU 99637 For technical questions, please call 1-800-444-3353. Page 5
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
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
those dust masks that are specially
designed to lter out microscopic
particles. (California Health & Safety
Code § 25249.5, et seq.)
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.)
3. Only use with accessories rated to
handle the forces exerted by this
Stapler during operation. Other ac-
cessories not designed for the forces
generated may break and forcefully
launch pieces.
4. Attach all accessories properly to the
Stapler before connecting the air sup-
ply. A loose accessory may detach or
break during operation.

SKU 99637 For technical questions, please call 1-800-444-3353. Page 6
5. Obey the manual for the air compres-
sor used to power this Stapler.
6. Install an in-line shutoff valve to allow
immediate control over the air supply
in an emergency, even if a hose is
ruptured.
7. Use this Stapler with both hands only.
Using tools with only one hand can
result in loss of control.
Vibration Precautions
This Stapler vibrates during use.
Repeated 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 Stapler do the work.
7. To reduce vibration, maintain the
Stapler as explained in this manual.
If abnormal vibration occurs, stop im-
mediately.
SAVE THESE
INSTRUCTIONS.

SKU 99637 For technical questions, please call 1-800-444-3353. Page 7
PRODUCT SPECIFICATIONS
Air Pressure Range 70-90 PSI
Air Hose Requirement 3/8” I.D.
Air Inlet 1/4” -18 NPT
Air Consumption 6.0 CFM
Fastener Type Staples with Plastic Caps
Staple Length 3/8” to 1-1/4”
Staple Crown Size 3/8” Crown
Staple Gauge 18 Gauge
Plastic Cap Diameter 1” O.D.
Plastic Cap Capacity 100 Plastic Caps
Magazine Capacity Strip of 100 Staples
Firing Method Intermittent Single Fire
Safety Trigger Single Sequential Safety Trip
Mechanism
Adjustable Drive
Depth
Rotational Knob at Left Side of
Stapler
PRODUCT FEATURES
FIGURE A
DRIVE DEPTH
ADJUSTER
(47)
MAGAZINE
LATCH
(63)
TRIGGER
(39)
BOTTOM PLATE
(95)
CANISTER
LATCH
(104)
PLASTIC
CAP
CANISTER
(105)
EXHAUST
CAP
(1)
MAGAZINES
A & B
(67, 73)
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
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.
• This air tool may be shipped with a
protective cap covering the Air Plug
(57). Remove this cap 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.
REV 08k

SKU 99637 For technical questions, please call 1-800-444-3353. Page 8
1. Incorporate a lter, regulator, oiler
and shut off valve for best service, as
shown in the diagram above. An in-
line shutoff valve is an important
safety device because it can imme-
diately shut-off air ow in case of
tool or hose failure.
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-
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. Make sure the tool’s throttle or switch
is in the off position; refer to Opera-
tion section for description of con-
trols.
5. Close the in-line safety valve be-
tween the compressor and the tool.
6. Turn on the air compressor according
to the manufacturer’s directions and
allow it to build up pressure until it
cycles off.
7. Adjust the air compressor’s output
regulator so that the air output is
enough to properly power the tool,
but the output will not exceed the
tool’s maximum air pressure at any
time. Adjust the pressure gradually,
while checking the air output gauge
to set the right pressure range.
8. Inspect the air connections for leaks.
Repair any leaks found.
9. If the tool will not be used at this time,
detach it from the air supply, safely
discharge any residual air pressure,
and release the throttle and/or turn
the switch to its off position to prevent
accidental operation.
Note: Residual air pressure should not be
present after the tool is disconnected
from the air supply. However, it is a
good safety measure to attempt to

SKU 99637 For technical questions, please call 1-800-444-3353. Page 9
discharge the tool in a safe fashion
after disconnecting to ensure that the
tool is disconnected and unpowered.
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 Stapler before use,
looking for damaged, loose,
and missing parts. If any
problems are found, do not use
tool until repaired.
Tool Set Up
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn off the Stapler, detach
the air supply, safely
discharge any residual air
pressure in the tool, and
release the Trigger (39) to its
off position 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. Each time the Stapler is red, com-
pressed air is exhausted through the
Exhaust Cap (1). The Exhaust Cap
can be turned a full 360°. Prior to
using the Stapler, always adjust the
Exaust Cap so that the compressed
air is exhausted away from your face.
(See Figure B.)
2. Always test for proper fastener pene-
tration by driving staples into a scrap
piece of wood. If the fasterners do
not achieve the desired penetration,
turn the Drive Depth Adjuster (47) to
a higher setting until the desired pen-
etration is achieved.
(See Figure B.)
3. The Stapler is designed to accept
staples from 3/8” to 1-1/4” in length.
To load the tool with staples, depress
the Magazine Latch (63). Pull back
on the Magazine (73). Insert a strip
of staples (up to 100 staples) in the
Magazine. Then push the Magazine
forward until the Magazine Latch
catches.
(See Figures C and D, next page.)
DRIVE DEPTH
ADJUSTER
(47)
EXHAUST
CAP
(1)
FIGURE B

SKU 99637 For technical questions, please call 1-800-444-3353. Page 10
FIGURE C
(MAGAZINE OPENED)
MAGAZINE
LATCH
(63)
MAGAZINE
(73)
4. To load plastic caps into the Cap
Canister (105), insert the plastic
caps into the Cap Canister. Turn the
Canister Latch (104) to apply pres-
sure on the caps. Then remove the
cap holder line from the plastic caps.
(See Figure E.)
5. To test the single sequential safety
trip mechanism of the Stapler:
• WARNING: Even though the Sta-
pler should be empty during this
procedure, ALWAYS point the Sta-
pler at a piece of scrap wood when
testing.
• Make sure the Stapler is discon-
nected from its air supply.
• Completely empty the Stapler of
staples and plastic caps.
• The Stapler should not re if the
Bottom Plate (95) is not depressed
against the scrap wood.
• Make sure the Trigger (39) moves
freely, without sticking.
• Connect the air supply to the Sta-
pler. Set the compressor’s regula-
tor at the recommended 70 to 90
operating pressure (PSI). Do not
exceed the maximum 90 PSI.
• Test the Stapler by depressing the
Bottom Plate (95) against the scrap
wood without pulling the Trigger
(39). The tool must not cycle
(re). If it cycles (res), stop im-
mediately and have it repaired by a
qualied service technician.
• Hold the Stapler away or off the
scrap wood. The Bottom Plate (95)
should return to its original position.
Squeeze the Trigger (39). The tool
should not cycle (re). If the tool
cycles (res), stop immediately and
have it repaired by a qualied ser-
vice technician.
• Depress the Bottom Plate (95)
against the scrap wood and
squeeze the Trigger (39). The tool
must cycle (re) only once. Re-
lease the Trigger and squeeze it
again. The tool must cycle (re)
FIGURE D
(MAGAZINE CLOSED)
FIGURE E
PLASTIC
CAPS
(NOT INCLUDED)
CAP
CANISTER
(105)
CANISTER
LATCH
(104)
REV 08k

SKU 99637 For technical questions, please call 1-800-444-3353. Page 11
only once. With the Trigger held,
carefully lift the Stapler and press it
against the scrap wood again. The
tool must not cycle (re). If it fails
to perform in the manner explained
in bold, have it repaired by a quali-
ed service technician.
(See Figure F.)
FIGURE A
TRIGGER
(39)
BOTTOM PLATE
(95)
Work Area Set Up
1. Designate a work area that is clean
and well-lit. The work area must not
allow access by children or pets to
prevent injury and distraction.
2. Route the air hose along a safe route
to reach the work area without creat-
ing a tripping hazard or exposing the
air hose to possible damage. The air
hose must be long enough to reach
the work area with enough extra
length to allow free movement while
working.
3. Secure loose workpieces using a vise
or clamps (not included) to prevent
movement while working.
4. There must not be hazardous ob-
jects (such as utility lines or foreign
objects) nearby that will present a
hazard while working.
General Operating Instructions
ALWAYS wear
ANSI-approved
safety impact goggles and heavy
duty work gloves when operating the
Stapler.
1. If an automatic oiler is not used, add
a few drops of Pneumatic Tool Oil
to the airline connection before use.
Add a few drops more after each
hour of continual use.
2. Check to make sure the single se-
quential safety trip mechanism of the
Stapler is working properly as previ-
ously discussed in this manual.
3. Load the Stapler with staples and
plastic caps as previously discussed
in this manual.
4. Connect the air supply to the Stapler,
and set the compressor’s regulator
between 70 and 90 PSI.
5. Rotate the Exhaust Cap (1) so that
the exhaust air blast will be directed
away from the operator.
6. Test for proper fastener penetration.
If necessary, adjust per paragraph 2
of tool Set-up Section on page 9.
7. To re, place the Bottom Plate (95)
of the Stapler on the workpiece. The
Stapler should not cycle (re) if the
Bottom Plate is not depressed. Once
REV 08k

SKU 99637 For technical questions, please call 1-800-444-3353. Page 12
depressed, gently and briey squeeze
the Trigger (39) once. One staple and
plastic cap will be red.
8. Do not press the Bottom Plate (95)
against the workpiece with excessive
force. Allow the tool to do the work.
Always allow the tool to recoil off the
work surface.
9. If the Stapler requires more force to
accomplish the task, verify that the
tool receives sufcient, unobstructed
airow ( 6 CFM) and increase the
pressure (70 to 90 PSI) output of
the regulator up to the maximum air
pressure rating of this tool.
CAUTION! TO PREVENT TOOL
AND ACCESSORY FAILURE,
RESULTING IN INJURY:
Do not exceed the tool’s maximum
air pressure rating (90 PSI).
If the Stapler still does not have
sufcient force at maximum pressure
and sufcient airow, then a larger
Stapler may be required.
10. To prevent accidents, turn off the
Stapler, detach the air supply, safely
discharge any residual air pressure
in the tool, and release the Trigger
(39) to its off position after use. Clean
external surfaces of the Stapler with
clean, dry cloth, and apply a thin coat
of tool oil. Then store the tool indoors
out of children’s reach.
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:
Turn off the Stapler, detach
the air supply, safely
discharge any residual air
pressure in the tool, and turn
the Trigger (39) to its off
position 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 the Stapler only
with specied lubricants.
Lubricate the air inlet
using only pneumatic tool
oil. Lubricate the internal
mechanism using only
white lithium grease. Other
lubricants may damage the
mechanism and may be
highly ammable, causing an
explosion.
Note: These procedures are in addition to
the regular checks and maintenance
explained as part of the regular op-
eration of the air-operated tool.
1. Daily:
• Every day, perform maintenance on
the air supply according to the com-
ponent manufacturers’ instructions.
The lubricator’s oil level needs to
be maintained and the moisture
REV 08k

SKU 99637 For technical questions, please call 1-800-444-3353. Page 13
lter must be regularly drained. Per-
forming routine maintenance on the
air supply will allow the tool to oper-
ate more safely and will also reduce
wear on the tool.
2. After each use:
• Clean the exterior of the Stapler us-
ing a clean cloth. Do not use sol-
vents. Do not immersed the tool in
liquid.
3. Quarterly:
• Have the internal mechanism
cleaned, inspected, and lubricated
by a qualied technician. If the
vanes need replacement, all vanes
should be replaced as a set.
4. To clear jams:
• Disconnect the Stapler from its air
supply.
• Empty the Magazine (73) and Cap
Canister (105) completely.
• Attempt to re the Stapler into a
piece of scrap wood to ensure that
it is disconnected and incapable of
ring any staples/plastic caps.
• If the staple/plastic cap is jammed
in the discharge area, remove the
Connecting Plate (76) and use pliers
to remove the jammed staple/plastic
cap. Then re-attach the Connecting
Plate.
• If the staple is jammed inside the
Magazine (73), depress the Maga-
zine Latch (63). Pull back on the
Magazine. Use pliers to remove
the jammed staple. Then push the
Magazine forward until the Magazine
Latch catches.
• If the plastic cap is jammed inside
the Cap Canister (105), turn and
raise the Canister Latch (104). Use
pliers to remove the jammed plastic
cap. Then turn and lower the Can-
ister Latch to re-apply pressure on
the plastic caps.
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.

SKU 99637 For technical questions, please call 1-800-444-3353. Page 14
TROUBLESHOOTING
Problem Possible Causes Possible Solutions
Decreased output. 1. Not enough air pressure and/
or air ow.
2. Obstructed trigger.
3. Incorrect lubrication or not
enough lubrication.
4. Blocked air inlet screen (if
equipped).
5. Air leaking from loose
housing.
6. Mechanism contaminated.
1. Vane wear or damage.
1. Check for loose connections and make
sure that air supply is providing enough air
ow (6 CFM) at required pressure (70-110
PSI) to the tool’s air inlet. Do not exceed
maximum air pressure.
2. Clean around trigger to ensure free
movement.
3. Lubricate using air tool oil and grease
according to directions.
4. Clean air inlet screen of buildup.
5. Make sure housing is properly assembled
and tight.
6. Have qualied technician clean and
lubricate mechanism. Install in-line lter
in air supply as stated in Initial Set Up: Air
Supply.
7. Replace all vanes.
Housing heats
during use.
1. Incorrect lubrication or not
enough lubrication.
2. Worn parts.
1. Lubricate using air tool oil and grease
according to directions.
2. Have qualied technician inspect internal
mechanism and replace parts as needed.
Severe air
leakage.
(Slight air leakage
is normal,
especially on
older tools.)
1. Cross-threaded housing
components.
2. Loose housing.
3. Damaged valve or housing.
4. Dirty, worn or damaged valve.
1. Check for incorrect alignment and uneven
gaps. If cross-threaded, disassemble and
replace damaged parts before use.
2. Tighten housing assembly. If housing
cannot tighten properly, internal parts may
be misaligned.
3. Replace damaged components.
4. Clean or replace valve assembly.
Frequent
jamming.
1. Incorrect fasteners.
2. Damaged fasteners.
3. Magazine is dirty.
4. Driver is worn or damaged.
1. Use the correct fasteners.
2. Replace with undamaged fasteners.
3. Clean magazine.
4. Have a qualied service technician replace
driver.
Follow all safety precautions whenever diagnosing or servicing the
tool. Disconnect air supply before service.

SKU 99637 For technical questions, please call 1-800-444-3353. Page 15
PARTS LIST
Part # Description Part # Description
1 Exhaust Cap 38 O-Ring
2 Hex Bolt 39 Trigger
3 Spring Washer 40 Pin
4 Cylinder Cap Unit 41 Hex Bolt
5 Seal 42 Spring Washer
6 Internal Lining 43 Guide (Work Contact Element)
7 O-Ring 44 Pin
8 Compression Spring 45 Spring
9 Gasket (Cylinder Cap) 46 Hex Bolt
10 O-Ring 47 Drive Depth Adjuster
11 Head Valve/Piston Valve 48 Nut
12 O-Ring 49 Spring
13 O-Ring 50 Ring
14 O-Ring 51 Safety
15 Collar 52 E-Ring
16 O-Ring 53 Stop Ring (Depth Control)
17 Piston Up Cover & Driver 54 Hand Grip
18 O-Ring 55 O-Ring
19 Lining Ring 56 End Cap
20 Cylinder 57 Air Plug
21 O-Ring 58 Hex Bolt
22 O-Ring 59 Tail Hanger
23 Bumper 60 Nut
24 Air Plug 61 Hex Bolt
25 Body 62 Spring
26 Nozzle 63 Magazine Latch
27 Air Hose 64 Pin
28 Seal 65 Tail Cover
29 Trigger Valve Head 66 Hex Bolt
30 Spring 67 Magazine (A)
31 O-Ring 68 Fixed Block
32 Trigger Plunger 69 Bar
33 O-Ring 70 Spring
34 Valve Body (Lower) 71 Pin
35 Spring 72 Pusher
36 Trigger Plate 73 Magazine (B)
37 Pin 74 Set Plate

SKU 99637 For technical questions, please call 1-800-444-3353. Page 16
PARTS LIST - CONTINUED
Part # Description Part # Description
75 Driver Guide 93 Plate
76 Connecting Plate 94 Hex Bolt
77 Hex Bolt 95 Bottom Plate
78 Nut 96 Plate
79 Spring Plate 97 Washer
80 Spring Plate 98 Washer
81 Retainer Ring 99 Hex Bolt
82 Fixing Seat 100 Pin
83 Cylinder Bushing 101 Pusher Spring
84 O-Ring 102 Idler Wheel
85 Piston 103 Spring Holder
86 Spring 104 Canister Latch
87 Stopper 105 Cap Canister
88 Retainer Ring 106 Bent Plate
89 Driver Blade 107 Upper Cover
90 Pusher 108 Pin
91 Cylinder Shelter 109 Connecting Block
92 Plate

SKU 99637 For technical questions, please call 1-800-444-3353. Page 17
ASSEMBLY DIAGRAM

SKU 99637 For technical questions, please call 1-800-444-3353. Page 18
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.
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]