Central Pneumatic 4495 Installation manual

7” VERTICAL AIR
POLISHER/SANDER
Model 4495
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©2009 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.
For technical questions or replacement parts, please call 1-800-444-3353.

Page 2For technical questions, please call 1-800-444-3353.SKU 4495
SAVE THIS MANUAL
Keep this manual for the safety warnings
and precautions, assembly, operating,
inspection, maintenance and cleaning
procedures. Write the product’s serial number
in the back of the manual near the assembly
diagram (or month and year of purchase if
product has no number). Keep this manual
and the receipt in a safe and dry place for
future reference.
Safety Alert Symbol and Signal
Words
In this manual, on the labeling, and
all other information provided with
this product:
This is the safety alert
symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that follow
this symbol to avoid possible
injury or death.
DANGER indicates a
hazardous situation
which, if not avoided, will result
in death or serious injury.
WARNING indicates a
hazardous situation
which, if not avoided, could
result in death or serious injury.
CAUTION, used with
the safety alert
symbol, indicates a hazardous
situation which, if not avoided,
could result in minor or moderate
injury.
NOTICE is used to
address practices not
related to personal injury.
CAUTION, without the
safety alert symbol, is
used to address practices not
related to personal injury.
IMPORTANT SAFETY
INSTRUCTIONS
INSTRUCTIONS PERTAINING
TO A RISK OF FIRE, ELECTRIC
SHOCK, OR INJURY TO
PERSONS
WARNING – When using tools, basic
precautions should always be followed,
including the following:
General
a. To reduce the risks of electric shock,
re, and injury to persons, read all the
instructions before using the tool.
Work area
a. Keep the work area clean and well
lighted. Cluttered benches and dark
areas increase the risks of electric
shock, re, and injury to persons.
b. Do not operate the tool in explosive
atmospheres, such as in the presence
of ammable liquids, gases, or dust.
The tool is able to create sparks resulting
in the ignition of the dust or fumes.
c. Keep bystanders, children, and
visitors away while operating the tool.
Distractions are able to result in the loss
of control of the tool.
Personal safety
a. Stay alert. Watch what you are
doing and use common sense when
operating the tool. Do not use the

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tool while tired or under the inuence
of drugs, alcohol, or medication. A
moment of inattention while operating
the tool increases the risk of injury to
persons.
b. Dress properly. Do not wear loose
clothing or jewelry. Contain long hair.
Keep hair, clothing, and gloves away
from moving parts. Loose clothes,
jewelry, or long hair increases the risk
of injury to persons as a result of being
caught in moving parts.
c. Avoid unintentional starting. Be sure
the switch is off before connecting to
the air supply. Do not carry the tool with
your nger on the switch or connect the
tool to the air supply with the switch on.
d. Remove adjusting keys and wrenches
before turning the tool on. A wrench
or a key that is left 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 tool in unexpected
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 protection.
Wear ANSI-approved safety
goggles.
h. Always wear hearing
protection when using the
tool. 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. Thoroughly
investigate the workpiece for possible
hidden wiring before performing 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 tool. 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.
c. Do not use the tool if the switch does
not turn the tool on or off. Any tool that
cannot be controlled with the switch is
dangerous and must be repaired.
d. Disconnect the tool from the
air source before making any
adjustments, 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.

Page 4For technical questions, please call 1-800-444-3353.SKU 4495
e. Store the tool when it is idle out of
reach of children and other untrained
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 properly
maintained tool, with sharp cutting edges
reduces the risk of binding and is easier
to control.
g. Check for misalignment or binding
of moving parts, breakage of parts,
and any other condition that affects
the tool’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 tool or specied by the
manufacturer.
Air source
a. Never connect to an air
source that is capable of
exceeding 90 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.
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.
Chart continued in next column.

Page 5For technical questions, please call 1-800-444-3353.SKU 4495
Symbol Property or statement
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.
Safety Warnings Common for
Grinding, Sanding, Wire Brushing,
Polishing, or Abrasive Cutting-Off
Operations
1. This power tool is intended to
function as a sander and polisher.
Read all safety warnings, instructions,
illustrations and specications
provided with this power tool. Failure
to follow all instructions listed below
may result in electric shock, re and/or
serious injury.
2. Operations such as grinding, wire
brushing, or cutting-off are NOT
recommended to be performed with
this power tool. Operations for which
the power tool was not designed may
create a hazard and cause personal
injury.
3. Do not use accessories which
are not specically designed
and recommended by the tool
manufacturer. Just because the
accessory can be attached to your power
tool, it does not assure safe operation.
4. The rated speed of the accessory
must be at least equal to the
maximum speed marked on the power
tool. Accessories running faster than
their RATED SPEED can break and y
apart.
5. The outside diameter and the
thickness of your accessory must
be within the capacity rating of
your power tool. Incorrectly sized
accessories cannot be adequately
guarded or controlled.
6. The arbor size of wheels, anges,
backing pads or any other accessory
must properly t the spindle of the
power tool. Accessories with arbor
holes that do not match the mounting
hardware of the power tool will run out
of balance, vibrate excessively and may
cause loss of control.
7. Do not use a damaged accessory.
Before each use inspect the
accessory such as abrasive wheels
for chips and cracks, backing pad
for cracks, tear or excess wear,
wire brush for loose or cracked
wires. If power tool or accessory
is dropped, inspect for damage or
install an undamaged accessory.
After inspecting and installing an
accessory, position yourself and
bystanders away from the plane of
the rotating accessory and run the
power tool at maximum no-load speed
for one minute. Damaged accessories
will normally break apart during this test
time.
8. Wear personal protective equipment.
Depending on application, use face
shield, safety goggles or safety
glasses. As appropriate, wear dust
mask, hearing protectors, gloves
and workshop apron capable of
stopping small abrasive or work piece
fragments. The eye protection must
be capable of stopping ying debris
generated by various operations.
The eye protection must be capable
of stopping ying debris generated by
various operations. The dust mask or

Page 6For technical questions, please call 1-800-444-3353.SKU 4495
respirator must be capable of ltering out
particles generated by your operation.
Prolonged exposure to high intensity
noise may cause hearing loss.
9. Keep bystanders a safe distance away
from work area. Anyone entering
the work area must wear personal
protective equipment. Fragments of
work piece or of a broken accessory
may y away and cause injury beyond
immediate area of operation.
10. Hold power tool by insulated gripping
surfaces only, when performing an
operation where the accessory may
contact hidden wiring or its own cord.
An accessory contacting a ″live″ wire
may make exposed metal parts of the
power tool ″live″ and shock the operator.
11. Never lay the power tool down until
the accessory has come to a complete
stop. The spinning accessory may grab
the surface and pull the power tool out of
your control.
12. Do not run the power tool while
carrying it at your side. Accidental
contact with the spinning accessory
could snag your clothing, pulling the
accessory into your body.
13. Regularly clean the power tool’s air
vents. The motor’s fan will draw the
dust inside the housing and excessive
accumulation of powdered metal may
cause electrical hazards.
14. Do not operate the power tool near
ammable materials. Sparks could
ignite these materials.
15. Maintain labels and nameplates on
the tool. These carry important safety
information. If unreadable or missing,
contact Harbor Freight Tools for a
replacement.
16. Avoid unintentional starting. Prepare to
begin work before turning on the tool.
17. Do not leave the tool unattended when
it is plugged into an electrical outlet.
Turn off the tool, and unplug it from its
electrical outlet before leaving.
18. Use clamps (not included) or other
practical ways to secure and support the
workpiece to a stable platform. Holding
the work by hand or against your body is
unstable and may lead to loss of control
and personal injury.
19. This product is not a toy. Keep it out of
reach of children.
20. People with pacemakers should
consult their physician(s) before use.
Electromagnetic elds in close proximity
to heart pacemaker could cause
pacemaker interference or pacemaker
failure. In addition, people with
pacemakers should:
• Avoid operating alone.
• Do not use with power switch locked
on.
• Properly maintain and inspect to avoid
electrical shock.
• Any power cord must be properly
grounded. Ground Fault Circuit
Interrupter (GFCI) should also be
implemented – it prevents sustained
electrical shock.
21. WARNING: Some dust created by power
sanding, sawing, grinding, drilling, 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 chemically
treated lumber

Page 7For technical questions, please call 1-800-444-3353.SKU 4495
Your risk from these exposures varies,
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.)
22. WARNING: Handling the cord on this
product will expose you to lead, a
chemical known to the State of California
to cause cancer, and birth defects or
other reproductive harm. Wash hands
after handling. (California Health &
Safety Code § 25249.5, et seq.)
23. The warnings, precautions, and
instructions discussed in this instruction
manual cannot cover all possible
conditions and situations that may occur.
It must be understood by the operator
that common sense and caution are
factors which cannot be built into this
product, but must be supplied by the
operator.
Kickback and Related Warnings
Kickback is a sudden reaction to a
pinched or snagged rotating wheel, backing
pad, brush or any other accessory. Pinching
or snagging causes rapid stalling of the
rotating accessory which in turn causes the
uncontrolled power tool to be forced in the
direction opposite of the accessory’s rotation
at the point of the binding.
For example, if an abrasive wheel is
snagged or pinched by the workpiece, the
edge of the wheel that is entering into the
pinch point can dig into the surface of the
material causing the wheel to climb out or
kick out. The wheel may either jump toward
or away from the operator, depending on
direction of the wheel’s movement at the point
of pinching. Abrasive wheels may also break
under these conditions.
Kickback is the result of power tool
misuse and/or incorrect operating procedures
or conditions and can be avoided by taking
proper precautions as given below.
1. Maintain a rm grip on the power
tool and position your body and
arm to allow you to resist kickback
forces. Always use auxiliary handle, if
provided, for maximum control over
kickback or torque reaction during
start-up. The operator can control
torque reactions or kickback forces, if
proper precautions are taken.
2. Never place your hand near the
rotating accessory. Accessory may
kickback over your hand.
3. Do not position your body in the
area where power tool will move
if kickback occurs. Kickback will
propel the tool in direction opposite to
the wheel’s movement at the point of
snagging.
4. Use special care when working
corners, sharp edges etc. Avoid
bouncing and snagging the
accessory. Corners, sharp edges or
bouncing have a tendency to snag the
rotating accessory and cause loss of
control or kickback.
5. Do not attach a saw chain
woodcarving blade or toothed saw
blade. Such blades create frequent
kickback and loss of control.
Safety Warnings Specic for
Sanding Operations
1. Do not use excessively oversized
sanding disc paper. Follow
manufacturer’s recommendations

Page 8For technical questions, please call 1-800-444-3353.SKU 4495
when selecting sanding paper. Larger
sanding paper extending beyond the
sanding pad presents a laceration
hazard and may cause snagging, tearing
of the disc or kickback.
Safety Warnings Specic for
Polishing Operations
1. Do not allow any loose portion of the
polishing bonnet or its attachment
strings to spin freely. Tuck away or
trim any loose attachment strings.
Loose and spinning attachment strings
can entangle your ngers or snag on the
workpiece.
Vibration Safety
This tool vibrates during use. Repeated
or long-term exposure to vibration 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 regularly
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, nervous system disorders,
diabetes, or Raynaud’s Disease should
not use this tool. If you feel any medical
or physical symptoms related to vibration
(such as tingling, numbness, and white
or blue ngers), seek medical advice as
soon as possible.
2. Do not smoke during use. Nicotine
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 different
processes.
5. Include vibration-free periods each day
of work.
6. Grip tool as lightly as possible (while still
keeping safe control of it). Let the tool
do the work.
7. To reduce vibration, maintain the tool
as explained in this manual. If any
abnormal vibration occurs, stop use
immediately.
SAVE THESE
INSTRUCTIONS.

Page 9For technical questions, please call 1-800-444-3353.SKU 4495
SPECIFICATIONS
Max. Speed* 2300 RPM
Max. Air Pressure 90 PSI
Average Air Consumption 6 SCFM @ 90
Air Inlet 1/4” - 18 NPT
Spindle Thread 5/8” - 11
Recommended Hose Size 3/8”
Pad Diameter 6-3/4”
Accessories (1) Open-End Wrench
(1) Spanner
* Maximum speed at stated maximum air pressure. Excess
air pressure is hazardous and may cause the tool to
exceed stated maximum speed.
INITIAL TOOL SET UP/
ASSEMBLY
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set up
or use of this product.
Note: For additional information regarding the
parts listed in the following pages, refer
to the Assembly Diagram near the end of
this manual.
Unpacking
When unpacking, make sure that the
item is intact and undamaged. If any parts
are missing or broken, please call Harbor
Freight Tools at 1-800-444-3353 as soon as
possible.
• This air tool may be shipped with a
protective plug covering the air inlet.
Remove this plug before set up.
Assembly
1. Thread the Exhaust Handle (3) into the
exhaust port on the side of the Motor
Housing (1) until tight. See Figure 1.
2. Thread raised side of Pad (42) onto
Spindle (32). See Figure 2.
3. Thread Pad Nut (43) onto Spindle,
making sure Nut’s at edge is facing
towards you. See Figure 2.
4. Place open-end Wrench (46) on Collar
(21) located around base of Spindle.
See Figure 2.
5. Align two cutouts on Pad Nut with two
knobs on Spanner (47) and, while
holding Spindle, tighten until secure. See
Figure 2.
Exhaust
Handle (3)
Figure 1 Motor
Housing (1)
Exhaust
Port
Figure 2
Wrench
(46)
Spanner
(47)
Pad Nut (43)
Pad
(42)

Page 10For technical questions, please call 1-800-444-3353.SKU 4495
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.
Quick
Coupler
Recommended Air Line Components
Regulator with
Pressure Gauge
Quick
Coupler Air Hose
on Reel
Valve FilterOiler
Coupler
Plug
Tool
Air
Compressor
Coupler
Plug
1. Incorporate a lter, regulator with
pressure gauge, oiler, in-line shutoff
valve, and quick coupler for best service,
as shown in the diagram above. An in-
line shutoff ball valve is an important
safety device because it controls
the air supply even if the air hose is
ruptured. The shutoff valve should be
a ball valve because it can be closed
quickly.
Note: If an automatic oiler system is not
used, add a few drops of Pneumatic
Tool Oil to the airline connection before
operation. Add a few more drops after
each hour of continual use.
2. Attach an air hose to the compressor’s
air outlet. Connect the air hose to the air
inlet of the tool. Other components, such
as a coupler plug 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
performance, can be hindered by
undersized 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. Turn the tool’s throttle or switch to the off
position; refer to Operation section for
description of controls.
5. Close the in-line shutoff valve between
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,
turn off and detach the air supply, safely
discharge any residual air pressure, and
release the throttle and/or turn the switch

Page 11For technical questions, please call 1-800-444-3353.SKU 4495
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
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 tool 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 tool, detach the air
supply, safely discharge any
residual air pressure in the tool,
and release the throttle 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.
Work Piece and 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
distraction and injury.
2. Route the air hose along a safe path to
reach the work area without creating 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 objects
(such as utility lines or foreign objects)
nearby that will present a hazard while
working.
5. If an automatic oiler is not used, put a
few drops of Pneumatic Tool Oil into tool
at air inlet connection before use. Add
a few drops more after each hour of
continual use.
Sanding Operating Instructions
1. Set the compressor to 90 PSI, locate
the Pad in the center of the sanding disc
(sold separately), making sure there is
equal overhang on the disc.
2. Grip Polisher/Sander with both hands
and place onto the area to sand.
3. Squeeze the Throttle Lever (7). You can
vary the speed of the Polisher/Sander to
suit your needs by varying the amount of
pressure on the Throttle Lever.
4. Move Polisher/Sander in a uniform
pattern, either up or down or side to side.
This will ensure even sanding.

Page 12For technical questions, please call 1-800-444-3353.SKU 4495
5. Periodically check the Polisher/Sander
for any potential disc wear. Replace
used disc when necessary.
Polishing Operating Instructions
1. Set the compressor to 90 PSI, attach a
polishing bonnet (sold separately) and
apply a small amount of the appropriate
polishing compound onto the bonnet in a
circular (or swirl) fashion.
2. Grip Polisher/Sander with both hands.
3. Place the Polisher/Sander onto the area
you wish to polish.
4. Squeeze Throttle Lever (7) halfway
down. Move Polisher/Sander in random
pattern. CAUTION! Do not polish in one
position for more than a few seconds.
5. Once you’ve covered the desire area,
stop and replace bonnet with a new
bonnet for bufng operation.
6. Avoid polishing body part edges. Use
hand force to prevent possible damage
to auto body nish.
7. Buff the polished area using the same
technique, applying light pressure and
moving in a random pattern until all of
the compound has been removed.
8. Use a clean, lint-free cloth to remove any
compound from crevices that could not
be reached with Polisher/Sander.
9. If the tool requires more force to
accomplish the task, verify that the
tool receives sufcient, unobstructed
airow (CFM) and increase the pressure
(PSI) output of the regulator up to the
maximum air pressure rating of this tool.
10. CAUTION! TO PREVENT TOOL AND
ACCESSORY FAILURE, RESULTING
IN INJURY: Do not exceed tool’s
maximum air pressure rating.
11. If tool still does not have sufcient force
at maximum pressure and sufcient
airow, a larger tool may be required.
12. To prevent accidents, turn off the tool,
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 after use. Clean
external surfaces of the tool with clean,
dry cloth, and apply a thin coat of tool
oil. Then store the tool indoors out of
children’s reach.
USER-MAINTENANCE
INSTRUCTIONS
Procedures not specically
explained in this manual must
be performed only by a qualied
technician.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Turn off tool,
detach air supply, safely
discharge any residual air
pressure in tool, and release
throttle lever 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 problem
corrected before further use.
TO PREVENT EXPLOSION:
Lubricate the tool 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

Page 13For technical questions, please call 1-800-444-3353.SKU 4495
may damage the mechanism
and may be highly ammable,
causing an explosion.
Cleaning, Maintenance, and
Lubrication
Note: These procedures are in addition to
the regular checks and maintenance
explained as part of the regular operation
of the air-operated tool.
1. Daily - Air Supply Maintenance:
Every day, perform maintenance
on the air supply according to the
component manufacturers’ instructions.
The lubricator’s oil level needs to be
maintained and the moisture lter must
be regularly drained. Performing routine
maintenance on the air supply will allow
the tool to operate more safely and will
also reduce wear on the tool.
2. Quarterly (every 3 months) -
Tool Disassembly, Cleaning,
and Inspection: Have the internal
mechanism cleaned, inspected, and
lubricated by a qualied technician.
3. Regularly remove the Exhaust Deector
(5) from the Exhaust Handle (3) by
turning it counterclockwise. Clean by
blowing compressed air (at 10 PSI)
through it. Replace once cleaned.
Troubleshooting
Problem Possible Causes Likely 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. Check for loose connections and make sure that
air supply is providing adequate air ow (CFM) at
required pressure (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 common 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.
Housing heats
during use.
1. Incorrect lubrication or not
enough lubrication.
2. Worn parts.
1. Lubricate using air tool oil and common 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 be
tightened properly, internal parts may be misaligned.
3. Replace damaged components.
4. Clean or replace valve assembly.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect air supply before service.

Page 14For technical questions, please call 1-800-444-3353.SKU 4495
Part Description Qty.
1 Motor Housing 1
2 Set Screw 1
3 Exhaust Handle 1
4 Handle Grip 1
5Exhaust Deector 1
6 Spring Pin 1
7 Throttle Lever 1
8 Bottom Handle Grip 1
9 Inlet Handle 1
10 Inlet Bushing 1
11 Bearing Cap 1
12 External Stop Ring 1
13 Rear End Plate 1
14 Rotor Blade 4
15 Rotor 1
16 Spring Pin 1
17 Cylinder 1
18 Front End Plate 1
19 Ball Bearing (#608) 1
20 Spring Pin 1
21 Collar 1
22 Clamp Nut 1
Part Description Qty.
23 Oil Seal 1
24 Ball Bearing (#6204) 1
26 Internal Gear 1
27 Planet Pin 2
28 Needle Roller (1.5 x 13.8 mm) 22
29 Planet Gear 2
30 Ball Bearing (#6005) 1
32 Spindle 1
33 Ball Bearing (#6000) 1
34 “O” Ring 1
35 Valve Stem 1
36 “O” Ring 1
37 Valve Spring 1
38 Air Regulator 1
39 “O” Ring 1
40 “O” Ring 1
41 Valve Screw 1
42 Pad 1
43 Pad Nut 1
45 Bushing 1
46 Wrench 1
47 Spanner 1
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.
PARTS LIST

Page 15For technical questions, please call 1-800-444-3353.SKU 4495
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 available
individually as replacement parts.
1
354
2
6
7
810 9
11
12
13
14
15
16
17
18
19
20
21
22
23
24 26
27
27
28
28
29
29
30
32
33
34
35 36 37 38 39 40 41
42
43
45
Please note: Wrench (46) and Spanner (47) not shown.

Page 16For technical questions, please call 1-800-444-3353.SKU 4495
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 activity, 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 complaint
must accompany the merchandise. If our inspection veries the defect, we will either 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 repaired 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]