56512
Visit our website at: http://www.harborfreight.com
Email our technical support at: [email protected]
Owner’s Manual & Safety Instructions
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. 19h
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright
©
2019 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 an d se rv ic e may n ot b e in cl uded.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Page 2 For technical questions, please call 1-888-866-5797. Item 56512
SaFEty OpEratiOn MaintEnancESEtup
table of contents
Safety ......................................................... 2
Specifications ............................................. 6
Setup .......................................................... 7
Operation ................................................... 10
Maintenance .............................................. 12
Parts List and Diagram .............................. 14
Warranty .................................................... 16
tM
WarninG SyMBOLS anD DEFinitiOnS
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.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses 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
to reduce the risks of electric shock,
fire, and injury to persons, read all the
instructions before using the tool.
Work area
1. Keep the work area clean and well lighted.
Cluttered benches and dark areas increase the
risks of electric shock, fire, and injury to persons.
2. Do not operate the tool in explosive
atmospheres, such as in the presence
of flammable liquids, gases, or dust.
The tool is able to create sparks resulting
in the ignition of the dust or fumes.
3. Keep bystanders, children, and visitors away
while operating the tool. Distractions are
able to result in the loss of control of the tool.
Page 3For technical questions, please call 1-888-866-5797.Item 56512
SaFEtyOpEratiOnMaintEnancE SEtup
personal Safety
1. Stay alert. Watch what you are doing and
use common sense when operating the tool.
Do not use the tool while tired or under the
influence of drugs, alcohol, or medication.
A moment of inattention while operating the
tool increases the risk of injury to persons.
2. 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.
3. avoid unintentional starting. Be sure the switch
is off before connecting to the air supply.
Do not carry the tool with your finger on the switch or
connect the tool to the air supply with the switch on.
4. 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.
5. Do not overreach.
Keep proper footing and balance at all times.
Proper footing and balance enables better
control of the tool in unexpected situations.
6. use safety equipment.
A dust mask, non-skid safety shoes
and a hard hat must be used for the
applicable conditions.
7. always wear eye protection.
Wear ANSI-approved safety goggles.
8. always wear hearing protection
when using the tool.
Prolonged exposure to high intensity
noise is able to cause hearing loss.
9. risk of Electric Shock. this tool is not
provided with an insulated gripping surface.
Contactwitha″live″wirewillalsomakeexposed
metalpartsofthetool″live″andshocktheoperator.
10. 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.
11. 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
1. 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.
2. 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.
3. 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.
4. 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.
5. 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.
6. 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.
7. 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.
8. 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.
Page 4 For technical questions, please call 1-888-866-5797. Item 56512
SaFEty OpEratiOn MaintEnancESEtup
Service
1. Tool service must be performed only
by qualified repair personnel.
2. When servicing a tool, use only identical
replacement parts. use only authorized parts.
air Source
1. never connect to an air source that
is capable of exceeding 200 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.
2. 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 Definitions
Symbol property or statement
n
o
No-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 flow
ScFM
Cubic Feet per Minute flow
at standard conditions
Symbol property or statement
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.
Page 5For technical questions, please call 1-888-866-5797.Item 56512
SaFEtyOpEratiOnMaintEnancE SEtup
Specific Safety instructions
1. this air tool is intended to function as a
sander. read all safety warnings, instructions,
illustrations and specifications provided with
this air tool. Failure to follow all instructions
listed below may result in electric
shock, fire and/or serious injury.
2. Operations such as grinding, wire brushing,
polishing, or cutting-off are not recommended
to be performed with this air tool. Operations
for which the air tool was not designed may
create a hazard and cause personal injury.
3. Do not use accessories which are not
specifically designed and recommended
by the tool manufacturer. Just because
the accessory can be attached to your
air tool, it does not assure safe operation.
4. Only use with accessories rated to handle the
forces exerted by this tool during operation.
Other accessories not designed for the forces
generated may break and forcefully launch pieces.
5. the outside diameter and the thickness of your
accessory must be within the capacity rating
of your air tool. Incorrectly sized accessories
cannot be adequately guarded or controlled.
6. the arbor size of wheels, flanges, backing
pads or any other accessory must properly
fit the spindle of the air tool. Accessories
with arbor holes that do not match the mounting
hardware of the air 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 for tears
and the backing pad for cracks, tears or excess
wear. if air tool or accessory is dropped, inspect
for damage or install an undamaged accessory.
8. Attach all accessories properly to the tool before
connecting the air supply. A loose accessory
may detach or break during operation.
9. 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
workpiece fragments. the eye protection must
be capable of stopping flying debris generated
by various operations. The eye protection must
be capable of stopping flying debris generated by
various operations. The dust mask or respirator
must be capable of filtering out particles generated
by your operation. Prolonged exposure to high
intensity noise may cause hearing loss.
10. Keep bystanders a safe distance away
from work area. anyone entering the
work area must wear personal protective
equipment. Fragments of workpiece or of
a broken accessory may fly away and cause
injury beyond immediate area of operation.
11. Do not depress the spindle lock when
starting or during operation.
12. Obey the manual for the air compressor
used to power this tool.
13. Install an in-line shutoff valve to allow
immediate control over the air supply in an
emergency, even if a hose is ruptured.
14. Use this tool with both hands only. Using tools
with only one hand can result in loss of control.
15. Hold power tool by insulated gripping
surfaces only, when performing an operation
where the accessory may contact hidden
wiring. Anaccessorycontactinga″live″
wire may make exposed metal parts of the
powertool″live″andshocktheoperator.
16. Do not lay the tool down until it has come to
a complete stop. Moving parts can grab the
surface and pull the tool out of your control.
17. Do not run the air tool while carrying it
at your side. Accidental contact with the
spinning accessory could snag your clothing,
pulling the accessory into your body.
18. 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.
19. Do not operate the air tool near flammable
materials. Sparks could ignite these materials.
20. Maintain labels and nameplates on the tool.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
21. Avoid unintentional starting.
Prepare to begin work before turning on the tool.
22. This product is not a toy.
Keep it out of reach of children.
23. The warnings and precautions discussed in this
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.
Page 6 For technical questions, please call 1-888-866-5797. Item 56512
SaFEty OpEratiOn MaintEnancESEtup
Vibration precautions
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 first be examined
by a doctor and then have regular medical
check-ups to ensure medical problems are not
being caused or worsened from use. Pregnant
women or people who have impaired blood
circulation to the hand, past hand injuries,
nervous system disorders, diabetes, or Raynaud’s
Disease should not use this tool. If you feel
any symptoms related to vibration (such as
tingling, numbness, and white or blue fingers),
seek medical advice as soon as possible.
2. Do not smoke during use. Nicotine reduces
the blood supply to the hands and fingers,
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.
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
tool as explained in this manual.
If abnormal vibration occurs, stop immediately.
SaVE tHESE inStructiOnS.
Functional Description
Specifications
Maximum Air Pressure 90 PSI
Air Inlet 1/4 -18 NPT
Rated Speed* 1,100 OPM
Average Air Consumption 3.0 CFM @ 90 PSI
Disc diameter 6 inches
* Rated speed at stated maximum air pressure.
Excess air pressure is hazardous and
may cause the tool to exceed stated rated speed.
components and controls
trigger
air inlet
Backing pad
pSa Sanding disc
regulator
Page 7For technical questions, please call 1-888-866-5797.Item 56512
SaFEtyOpEratiOnMaintEnancE SEtup
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.
note: This air tool may be shipped with a protective plug covering the air inlet. Remove this plug before set up.
air Supply
tO prEVEnt SEriOuS inJury FrOM 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.
1. Incorporate a filter, regulator with pressure gauge,
in-line shutoff valve, and quick coupler for best
service, as shown on Figure A on page 8 and
Figure B on page 9. 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.
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 efficient, 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 flow, and therefore tool performance,
can be hindered by undersized air supply components.
The air hose must be long enough to reach
the work area with enough extra length to
allow free movement while working.
3. Turn the tool's throttle or switch to the off position;
refer to Operation section for description of controls.
4. Close the in-line shutoff valve between
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, safely discharge
any residual air pressure, and release
the throttle and/or turn the switch to its off
position to prevent accidental operation.
9. 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 not powered.
tM
Page 8 For technical questions, please call 1-888-866-5797. Item 56512
SaFEty OpEratiOn MaintEnancESEtup
Figure a: portable air Supply Setup
G
A
E
E
H
F
B
Non-lubricated
Tools
Lubricated
Tools
A
B
C
C
D
A
Description Function
A Air Hose Connects air to tool
B Filter Prevents dirt and condensation from damaging tool or workpiece
C Regulator Adjusts air pressure to tool
D Lubricator (optional) For air tool lubrication
E Coupler and Plug Provides quick connection and release
F Leader Hose (optional) Increases coupler life
G Air Cleaner / Dryer (optional) Prevents water vapor from damaging workpiece
H Air Adjusting Valve (optional) For fine tuning airflow at tool
Page 9For technical questions, please call 1-888-866-5797.Item 56512
SaFEtyOpEratiOnMaintEnancE SEtup
Figure B: Stationary air Supply Setup
N
L
L O
M
C
C
Non-lubricated Tools
Lubricated
Tools
H
I
I
J
J
K
H
F
G
E
Slope
F
F
B
B
A
A
C
D
Description Function
A Vibration Pads For noise and vibration reduction
B Anchor Bolts Secures air compressor in place
C Ball Valve Isolates sections of system for maintenance
D Isolation Hose For vibration reduction
E MainAirLine-3/4″minimumrecommended Distributes air to branch lines
F Ball Valve To drain moisture from system
G BranchAirLine-1/2″minimumrecommended Brings air to point of use
H Air Hose Connects air to tool
I Filter Prevents dirt and condensation from damaging tool or workpiece
J Regulator Adjusts air pressure to tool
K Lubricator (optional) For air tool lubrication
L Coupler and Plug Provides quick connection and release
M Leader Hose (optional) Increases coupler life
N Air Cleaner / Dryer (optional) Prevents water vapor from damaging workpiece
O Air Adjusting Valve (optional) For fine tuning airflow at tool
Page 10 For technical questions, please call 1-888-866-5797. Item 56512
SaFEty OpEratiOn MaintEnancESEtup
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 and/or turn the switch 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 specifically explained within
this manual. improper adjustment can result in tool failure or other serious hazards.
installing Sanding Disc
1. Detach air supply from the Sander.
2. Connect the Pressure-Sensitive Sanding Disc
(sold separately) to the face of the Backing Pad by
pressing it firmly in place. Use only 6″ diameter
pressure-Sensitive Sanding (pSa) discs.
Sanding Disc
Workpiece 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 route to reach
the work area without creating a tripping hazard
or exposing the hose to possible damage.
The 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. Disconnect the air supply when replacing the
sand paper or backing pad. Replace the PSA
sandpaper disc with the grit of choice.
6. The6″diameterPressure-SensitiveAdhesive(PSA)
sandpaper discs attach to the Backing Pad, just
press the sanding disc onto the Backing Pad. The
PSA sanding discs are standard and sold separately.
Page 11For technical questions, please call 1-888-866-5797.Item 56512
SaFEtyOpEratiOnMaintEnancE SEtup
General Operating instructions
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. Wipe the work surface clean of all dirt and
debris, especially that of previous coarse
grit sanding sessions, which will scratch the
surface of a finer grit sanding session.
3. Attach the desired grit sanding disc (sold
separately) onto the Backing Pad.
4. Attach the air supply.
5. Pressing down on the Trigger with the palm of
your hand starts the Sander. Grip the Sander
but with the palm of the hand not pressing down.
With the sanding pad placed flat on the working
surface, press down on the Trigger with the palm
of the hand to begin the sanding operation.
cautiOn! Start and stop the Sander while it is held
firmly against the work surface. Applying the Sander
to the workpiece while running with the sanding
pad tilted will sand a groove into the workpiece and
may cause the Sander to move in the direction of
rotation, resulting in loss of control of the tool.
6. The speed of the Sander may be varied
by turning the air Regulator Value.
note: Do not allow free, no-load rotating at high
speed to avoid possible injury or damage to the tool.
7. Keep heavy pressure off of the Sander when
operating. Allow the sanding disc to do the work.
8. Move the Sander in a uniform pattern up and
down or side to side to ensure even sanding.
9. Periodically, stop the Sander and check
for possible disc wear. Replace used or
worn sanding discs when necessary.
10. If the tool requires more force to accomplish
the task, verify that the tool receives sufficient,
unobstructed airflow (CFM) and increase the
pressure (PSI) output of the regulator up to the
maximum air pressure rating of this tool.
cautiOn! tO prEVEnt inJury FrOM
tOOL Or accESSOry FaiLurE:
Do not exceed the tool’s maximum air
pressure rating.
If the tool still does not have sufficient force
at maximum pressure and sufficient airflow,
then a larger tool may be required.
11. To prevent accidents, after use, release the Trigger,
detach the air supply and then safely discharge
any residual air pressure in the tool. Clean
external surfaces of the tool with a clean, dry cloth.
Then store the tool indoors out of children’s reach.
Page 12 For technical questions, please call 1-888-866-5797. Item 56512
SaFEty OpEratiOn MaintEnancESEtup
user-Maintenance instructions
procedures not specifically explained in this manual must
be performed only by a qualified technician.
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 and/or turn the switch 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.
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. BEFOrE EacH uSE, inspect the general
condition of the tool. Check for:
• loose hardware or housing,
• misalignment or binding of moving parts,
• cracked or broken parts, and
• any other condition that may
affect its safe operation.
2. Daily - air Supply Maintenance:
Every day, maintain the air supply according
to the component manufacturers' instructions.
Drain the moisture filter regularly.
Performing routine air supply maintenance
will allow the tool to operate more safely
and will also reduce wear on the tool.
3. Quarterly (every 3 months) –
tool Disassembly, cleaning, and inspection:
Have the internal mechanism cleaned, inspected,
and lubricated by a qualified technician.
4. Any dirt or dust inside the motor may result in
slow rotation or complete stoppage. Use an air
filter at the air source to filter out dust and dirt.
5. Periodically, remove the Backing Pad by sliding
the supplied Wrench between the Backing Pad
and the Shroud. Engage the nut on the shaft
to lock it, and spin the Backing Pad off.
6. Clean out the inner workings of the Sander,
inside the Housing, with a vacuum or a brush.
7. Replace and secure the Backing Pad.
replacing Backing pad
1. Detach air supply from the Sander.
2. Peel off the Sanding Disc from the
face of the Backing Pad (39).
3. Using the Hex Key (41), remove six
Screws (40) connecting the Backing Pad to
the Gear Seat (35). Save the screws.
4. Connect new Backing Pad to Gear Seat
using the six Screws. Use the Hex Key
to tighten the Screws securely.
Backing pad (39)
Hex Key (41)
Screws (40)
Gear Seat (35)
Page 13For technical questions, please call 1-888-866-5797.Item 56512
SaFEtyOpEratiOnMaintEnancE SEtup
troubleshooting
problem possible causes Likely Solutions
Decreased output. 1. Not enough air pressure.
2. Low air flow.
3. Obstructed Trigger.
4. Blocked air inlet screen
(if equipped).
5. Air leaking from loose housing.
6. Mechanism contaminated.
1. Ensure the air hose is the proper size. Check for loose
connections and make sure that air supply is providing
enough air flow (CFM) at required pressure (PSI) to the
tool's air inlet. Do not exceed maximum air pressure.
2. Adjust the Regulator Value on the Sander.
3. Clean around Trigger to ensure free movement.
4. Clean air inlet screen of buildup.
5. Make sure housing is properly assembled and tight.
6. Have qualified technician
clean and lubricate mechanism. Install in-line filter
in air supply as stated in Setup: Air Supply.
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. Technician needs
to disassemble tool, align parts and reassemble.
3. Replace damaged components.
4. Clean or replace valve assembly.
Housing heats
during use.
Worn parts. Have qualified technician inspect internal
mechanism and replace parts as needed.
Moisture is
blowing out of the
Sander’s exhaust.
There is water in the air
compressor’s tank.
Drain the air compressor’s tank (see air
compressor manual for instructions). Lubricate
the Sander with oil and run it until moisture no
longer comes out of the exhaust. Lubricate
the tool again and run for 1-2 minutes.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect air supply before service.
Page 14 For technical questions, please call 1-888-866-5797. Item 56512
SaFEty OpEratiOn MaintEnancESEtup
part Description Qty
1 Housing 1
2 Silencer 1
3 Filter 1
4 Screw 1
5 Valve Stem 1
6 Bushing 1
7 Valve 1
8 Packing 1
9 Housing Back Seat 1
10 Regulator 1
11 Snap Ring 1
12 Trigger 1
13 Pin 3 x 24L 1
14 Air Inlet 1
15 Screw and Washer 2
16 Snap Ring 1
17 Bearing 6000ZZ 1
18 Rear Plate 1
19 Rotor 1
20 Rotor Blade 8
21 Cylinder 1
part Description Qty
22 Front Plate 1
23 Bearing 6002ZZ 1
24 O-Ring 1
25 Washer 1
26 Rotor Key 1
27 Motor Shaft Balancer 1
28 Housing Cover 1
29 Screw 4
30 Faceplate 1
31 Dust-Proof Washer 1
32 Washer 1
33 Gear 1
34 Screw M3 x 10 4
35 Gear Seat 1
36 Balancer6″ 1
37 Screw 1
38 Shroud 1
39 Backing Pad 1
40 Screw 6
41 Hex Key 1
42 Exhaust Sleeve 1
parts List and Diagram
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
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.
Page 15For technical questions, please call 1-888-866-5797.Item 56512
SaFEtyOpEratiOnMaintEnancE SEtup
assembly Diagram
Limited 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 verifies 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 specific legal rights and you may also have other rights which vary from state to state.
26541 agoura road • calabasas, ca 91302 • 1-888-866-5797
tM
