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SKU 90288

For technical questions, please call 1-800-444-3353.

in moving parts.  Protective, electrically nonconductive clothes and nonskid 

footwear are recommended when working.  Wear restrictive hair covering to 

contain long hair.

7. 

Use eye protection

. Always wear ANSI approved impact safety goggles. 

Wear a full face shield if you are producing metal filings or wood chips. Wear 

an ANSI approved dust mask or respirator when working around metal, wood, 

and chemical dusts and mists.

8. 

Do not overreach

. Keep proper footing and balance at all times. Do not reach 

over or across running machines.

9. 

Maintain tools with care

. Keep tools clean for better and safer performance. 

Follow instructions for changing accessories. Inspect tool periodically and if any 

part appears broken or damaged, have it repaired by an authorized technician. 

The handles must be kept clean, dry, and free from oil and grease at all times.

10. 

Disconnect power

.  Disconnect tool from air compressor when not in use.

11. 

Remove adjusting keys and wrenches

. Check that adjusting wrenches are 

removed from the tool or machine work surface before connecting it to its power 

source.

12. 

Avoid unintentional starting

. Be sure the air compressor switch is in the Off 

position when not in use and before connecting to this tool. Do not carry any 

tool with your finger on the trigger, whether it is plugged in or not.

13. 

Stay alert

. Watch what you are doing, use common sense. Do not operate any 

tool when you are tired.

14. 

Take caution as some woods contain preservatives such as copper chro-

mium arsenate (CCA) which can be toxic

. When sanding these materials 

extra care should be taken to avoid inhalation and minimize skin contact.

15. 

Check for damaged parts

. Before using any tool, any part that appears dam-

aged 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 qualified 

technician. Do not use the tool if any switch does not turn On and Off properly.

16. 

guard against electric shock

.  Prevent body contact with grounded surfaces 

such as pipes, radiators, ranges, and refrigerator enclosures.

17. 

Replacement parts and accessories

.  When servicing, use only identical 

replacement parts. Use of any other parts will void the warranty. Only use ac-

cessories intended for use with this tool. Approved accessories are available 

from Harbor Freight Tools.

Summary of Contents for 90288

Page 1: ... 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 te...

Page 2: ...all instructions before using this tool 1 Keep work area clean Cluttered areas invite injuries 2 Observe work area conditions Do not use machines or power tools in damp or wet locations Don t expose to rain Keep work area well lighted Do not use electrically powered tools in the presence of flammable gases or liquids 3 Keep children away Children must never be allowed in the work area Do not let t...

Page 3: ...rting Be sure the air compressor switch is in the Off position when not in use and before connecting to this tool Do not carry any tool with your finger on the trigger whether it is plugged in or not 13 Stay alert Watch what you are doing use common sense Do not operate any tool when you are tired 14 Take caution as some woods contain preservatives such as copper chro mium arsenate CCA which can b...

Page 4: ...rilling 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 and cement or other masonry products Arsenic and chromium from chemically treated lumber Your risk from these exposures varies depending on how often you ...

Page 5: ...manual and the instruction manual for the Air Compressor being used This air tool requires lubrication during operation For best results it is recom mended to have an oiler and water filter in line with the air supply as shown in the diagram above This will extend the life of the tool To Attach Sanding Paper And The Pad 1 Ensure that the Pad is firmly screwed onto the Drive Spindle 38 The Spindle ...

Page 6: ...all attachments are secure before turning on the tool 5 Grip the Handle with your left hand and the Housing 1 with your right reverse if you are left handed Depress the Trigger 16 with your right hand to turn the tool on Allow the motor to reach its full speed before sanding Make sure the Air Sander is running properly Make sure the Pad is rotating evenly and all parts appear to be working properl...

Page 7: ... Blade 5 28 Work Spindle 1 29 Woodruff Key 1 30 Rear Gasket 1 31 Rear Cover 1 32 Screw 2 Part Description Q ty 33 Screw 2 34 Balancer 1 35 Screw 1 36 Screw 1 37 Bearing 1 38 Drive Spindle 1 39 Retainer Ring 1 40 Cap 1 41 Spindle Lock 1 42 Washer 1 43 Screw 1 44 Pad 1 45 Washer 1 46 Wrench 1 PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN TH...

Page 8: ...Page 8 SKU 90288 For technical questions please call 1 800 444 3353 Assembly Drawing REV 04i 04k 05e 06d 10f 46 ...

Page 9: ...ntal 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 trans portation charges prepaid Proof of purchase date and an explanation of the complaint must...

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