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Page 7

SKU 90288

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

distance from the sanding pad while the Sander is operating.  Do not force the 

Pad or apply too much pressure. If the Pad slows down as you work with your 

material, you are applying too much pressure.  Always keep your body and 

clothing a safe distance from the running Air Sander.

8.  Once you have turned the Sander off, continue to hold onto the tool with both 

hands until the Pad stops spinning completely and before you set it down.  

Disconnect Sander from compressor when finished.

NOTE:

 Some parts are listed and shown for illustration purposes only and are not avail-

able individually as replacement parts.

Parts List

Part

Description

Q’ty

1

Housing

1

2

Air Inlet

1

3

O-Ring

1

4

Spring

1

5

O-Ring

4

6

Valve Stem

1

7

O-Ring

1

8

O-Ring

1

9

O-Ring

1

10

Valve Body

1

11

Screw

1

12

Bracket

1

13

Trigger Screw

1

14

Screw

1

15

Cap

1

16

Trigger

1

Part

Description

Q’ty

17

Rubber

1

18

Retainer Ring

1

19

Air Regulator

1

20

Retainer Ring

1

21

Bearing

2

22

End Plate

2

23

Cylinder

1

24

O-Ring

1

25

Pin

1

26

Rotor

1

27

Rotor 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 THIS MANUAL AS A REFERENCE TOOL ONLY.  NEITHER THE MANUFACTURER NOR DIS-

TRIBUTOR 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.

REV 04i, 04k, 05e, 06d, 10f

Maintenance

Be sure to follow all recommended steps for Maintenance as listed on Pages 3-4.
Sanding Pads must be clean and sharp for maximum sanding efficiency and 

safety. Do not use cracked or torn Sanding Pads.

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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