Central Pneumatic 93629 User manual

MINI ORBITAL SANDER
Model 93629
ASSEMBLY 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©2006 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 improve-
ments, 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.

PRODUCT SPECIFICATIONS
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly, operat-
ing, inspection, maintenance and cleaning procedures, parts list and assembly diagram.
Keep your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep this manual and invoice in a safe and dry place for future reference.
SAFETY WARNINGS AND PRECAUTIONS
UNPACKING
When unpacking, check to make sure that all the parts and accessories listed on page
8are included, and the product is intact and undamaged. If any parts are missing
or broken, please call Harbor Freight Tools at the number shown on the cover of this
manual as soon as possible.
1.
SKU 93629 For technical questions, please call 1-800-444-3353 PAGE 2
2. Keep work area clean. Cluttered areas invite accidents.
3. Stay within air pressure capacity. Never operate the Air Sander above
90 PSI. Only to be used as a Sander, not to be used as grinder. Never use with
grinding disk.
WARNING! Use eye, breathing, and hearing protection. Always wear
ANSI approved safety impact goggles when using this Air Sander. Wear
an ANSI approved dust mask or respirator. And wear ANSI approved
hearing and clothing protection. Other people in the work area must also
wear appropriate ANSI approved safety equipment.
Item Description
Maximum Operating Air Pressure 90 PSI
Air Consumption 4.0 CFM @ 90 PSI
Air Inlet Size 1/4” - 18 NPT w/Filtation Screen
Free Speed 15,000 RPM
Sanding Disc Diameter 2”
Additional Features 90” Angled Head/Directional Side Exhaust
Paddle Type Throttle/Hook & Loop Fastening Pad
Accessories Fine Sanding Disc (Qty 1)/Medium Sanding Disc (Qty 1)
Coarse Sanding Dist (Qty 1)/Wrench (Qty 1)
New Weight 1.55 lbs.

8. Dress properly. Do not wear loose clothing or jewelry as they can be caught in
moving parts. Protective, electrically non-conductive clothes and non-skid foot-
wear are recommended when working. Wear restrictive hair covering to contain
long hair.
9. Do not overreach. Keep proper footing and balance at all times. Do not reach
over or across running tools or air hoses.
10. Disconnect air hose and release any built-up air pressure. Never service the
Air Sander or disassemble with the air hose attached. Always release any
built-up air even after disconnecting hose. Disconnect the Air Sander when
not in use.
SKU 93629 For technical questions, please call 1-800-444-3353 PAGE 3
6. Store idle equipment. When not in use, tools must be stored in a dry location
to inhibit rust. Always lock up tools and keep out of reach of children.
7. Use the right tool for the job. Do not attempt to force a small tool or
attachment to do the work of a larger industrial tool. There are certain
applications for which this tool was designed. It will do the job better and more
safely at the rate for which it was intended. Do not modify this tool, and do not
use this tool for a purpose for which it was not intended.
4. Observe work area conditions. Keep work area well lit. Do not use pneumatic
 toolsinthepresenceofammablegasesorliquids.
5. Keep children away. Children must never be allowed in the work area. Do not
let them handle machines, tools, extension cords, or air hoses.
11. Remove adjusting wrenches. Check that adjusting wrenches are removed
from the tool and work surface before attaching to an air source.
12. Avoid unintential starting. Be sure the Throttle (2) is in the OFF position
 whennotinuseandbeforepluggingin.Donotcarryanytoolwithyourngeron
Throttle, whether it is attached to an air source or not.
13. Stay alert. Watch what you are doing. Use common sense. Do not operate any
tool when you are tired.
14. Do not operate tool if under the inuence of alcohol or drugs. Read warning
 labelsiftakingprescriptionmedicinetodetermineifyourjudgementorreexes 
are impaired while taking drugs. If there is any doubt, do not operate the tool.
15. Compressed air only. Use clean, dry, regulated, compressed air at 90 PSI.
Never use oxygen, carbon dioxide, combustible gases, or any other bottled gas
as a power source for this tool.

SKU 93629 For technical questions, please call 1-800-444-3353 PAGE 4
17. Replacement parts and accessories. This product is to be repaired and
 servicedonlybyaqualiedtechnician.Whenthisproductisserviced,only 
identical replacement parts should be used. Use of any other parts will void the
warranty. Only use accessories intended for use with this tool. Approved
accessories are available from Harbor Freight Tools.
18. Maintenance. The maintenance outlined in the “Maintenance” section should be
performed regularly. For your safety, this product should be serviced or repaired
 regularlyonlybyaqualiedtechnician.
16. Check for damaged parts. Before using any tool, any part that appears
damaged should be carefully checked to determine that it will operate properly
and perform its intended function. Check for alignment and binding of moving
parts, any broken parts, and any other condition that may affect proper operation.
 Anypartthatisdamagedshouldbeproperlyrepairedorreplacedbyaqualied 
technician. Do not use the tool if the Throttle does not operate properly.
19. Transport Air Sander safely. Always disconnect air supply when moving the
tool in the workplace. Carry the tool by the handle and avoid contact with the
Throttle (2).
20. Avoid working alone. If an accident happens, an assistant can bring help.
21. Forbestservice,youshouldincorporateanoiler,regulator,andin-linelter,as
 showninthediagrambelow.Hoses,couplers,oilers,regulators,andltersare 
all available at Harbor Freight Tools. NOTE: If an automatic oiler is not used,
put 3-5 drops of pneumatic Tool Oil (not included) in the tool’s quick connector
before each use. (See Figure A.)
REGULATOR
FILTER
FIGURE A OILER
22. WARNING! Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities contain 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, cement, and other masonry products, arsenic and chromium from
chemically treated lumber. (California Health & Safety Code § 25249.5, et seq.)

23. WARNING! The warnings, cautions, 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.
ASSEMBLY INSTRUCTIONS
1. Prior to use, the Air Sander requires the attachment of a Quick Connector
(not included) to its Air Inlet (7). To do so, make sure the screen Air Filter
within the Housing (1) is properly seated in the Housing. Wrap approximately
3” of pipe thread sealer tape (not included) around the male threads of the Quick
 Connector.Then,rmlytightentheQuickConnectorintotheAirInlet.
(See Figure B.)
SKU 93629 For technical questions, please call 1-800-444-3353 PAGE 5
OPERATING INSTRUCTIONS
1. CAUTION! Whenever possible, secure smaller workpieces in a vise or with
clamps (neither included) to avoid damage to the workpiece and/or personal
injury.
2. Attach a 2” diameter, self-adhesive, Sanding Disc (46, 46A, 46B) to the Pad (44)
of the Air Sander. (See Figure C, next page.)
Note: Do not use grinding wheels on this tool.
3. Make sure the Throttle (2) of the Air Sander is in its OFF (open) position. Then,
connect an air hose (not included) to the previously installed Quick Connector of
the tool. (See Figure C.)
HOUSING (1)
FIGURE B
AIR INLET
(7) AIR FILTER
(NOT SHOWN)
QUICK
CONNECTOR
(NOT INCLUDED)

FIGURE C
QUICK
CONNECTOR
(NOT INCLUDED)
THROTTLE
(2)
PAD
(44)
SANDING DISC
(46, 46A, 46B)
SKU 93629 For technical questions, please call 1-800-444-3353 PAGE 6
4. Connect the other end of the air hose to the air compressor system.
(See Figure A, page 4.)
5. Turn on the air compressor, and set its regulator to 90 PSI. Do not exceed
90 PSI.
6. GriptheAirSanderrmlywithboth hands.
7. Select an area on the workpiece to be sanded.
8. Squeeze the Throttle (2) to turn on the Air Sander. Make sure the Sanding Disc
(46, 46A, 46B) is not touching any surface before you turn on the tool.
(See Figure C.)
9. Place the revolving Sanding Disc (46, 46A, 46B) on the workpiece surface.
Then, move the Air Sander around the area to remove the residue. To increase
the rate of revolutions (RPM) of the Sanding Disc, squeeze the Throttle (2)
harder. To decrease the rate of revolutions, relax pressure on the Throttle.
(See Figure C.)
10. Keep a light pressure on the Air Sander while in use. Do not apply heavy
pressure, as damage to the surface area may result. (See Figure C.)
11. WARNING! Use eye, breathing, and hearing protection. Always wear
ANSI approved safety impact goggles when using this Air Sander. Wear
an ANSI approved dust mask, face shield or respirator. And wear ANSI
approved hearing protection. Other people in the work area must also
wear appropriate ANSI approved safety equipment.
12. WhennishedusingtheAirSander,releasepressureontheThrottle(2).Turn 
off the air compressor. Squeeze the Throttle again to release any compressed
air in the Air Sander. Disconnect the air hose from the tool. Then, store the Air
Sander in a clean, dry, safe location out of reach of children. (See Figure C.)

SKU 93629 For technical questions, please call 1-800-444-3353 PAGE 7
INSPECTION, MAINTENANCE, AND CLEANING
1. WARNING! Prior to performing any inspection, maintenance, or cleaning of
the Air Sander, make sure to disconnect the air hose from the tool. Then,
squeeze the Throttle (2) again to release any compressed air in the Air Sander.
2. To clean the exterior of the Air Sander, wipe with a clean, damp cloth using
a mild detergent or mild solvent. Do not immerse the tool in liquids.
3. When storing, always store the Air Sander in a clean, dry, safe location out
of reach of children.
4. CAUTION! All maintenance, service, and repairs not mentioned in this
 manualmustonlybeperformedbyaqualiedservicetechnician.
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 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 RISKS 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 93629 For technical questions, please call 1-800-444-3353 PAGE 8

SKU 93629 For technical questions, please call 1-800-444-3353 PAGE 9
REV10k
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.
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