1/4” COMPOSITE AIR DIE GRINDER
95029
ASSEMBLY AND OPERATING
INSTRUCTIONS
Due to continuing improvements, actual product may differ slightly from the product described herein.
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
TO PREVENT SERIOUS INjURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
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.
For technical questions and replacement parts, please call 1-800-444-3353.
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7. Stay alert. Watch what you are doing and use common sense when operating a
pneumatic tool. Do not use a pneumatic tool while tired or under the influence
of drugs, alcohol or medication. A moment of inattention while operating pneumatic
tools may result in serious personal injury.
8. Dress properly. Do not wear loose clothing or jewelry. Contain long hair.
Keep your hair, clothing, and gloves away from moving parts. Loose clothes,
jewelry, or long hair can be caught in moving parts.
9. Avoid accidental starting. Be sure the Trigger Lever (14) is off before connecting
to the air supply. Carrying pneumatic tools with your finger on the Trigger, or
connecting pneumatic tools to the air supply with the Trigger on, invites accidents.
10. Remove adjusting keys or wrenches before turning on the tool. A wrench or a key
that is left attached to a rotating part of the tool may result in personal injury.
11. Do not overreach. Keep proper footing and balance at all times. Proper footing
and balance enables better control and of the toll in unexpected situations.
12. Use safety equipment. Always wear ANSI-approved safety glasses under-
neath a full face shield, and hearing protection.
13. Replacement parts and accessories. When servicing, use only identical
replacement parts. 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.
14. Do not operate tool if under the influence of alcohol or drugs. Read warning
labels if taking prescription medicine to determine if your judgement or reflexes are
impaired while taking drugs. If there is any doubt, do not operate the Wrench.
15. Use proper size and type extension cord. If an extension cord is required, it must
be of the proper size and type to supply the correct current to the compressor without
heating up. Otherwise, the extension cord could melt and catch fire, or cause electrical
damage to the compressor. Check your air compressor’s manual for the appropriate
size cord.
16. Maintenance. For your safety, maintenance should be performed regularly by a
qualified technician.
17. 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.
18. When connecting to the air supply: Prior to each use, if an automatic oiler is not
used, add two drops of air tool oil (not included) into the Air Inlet (13) fitting of the Die
Grinder.
19. Always disconnect the Die Grinder from its compressed air supply source, and
squeeze the Trigger Lever (14) to release all compressed air in the tool before
performing any maintenance or services.
Note: Performance of the compressor (if powered by line voltage) may vary depending on
variations in local line voltage. Extension cord usage may also affect tool performance.
SKU 95029
For technical questions, please call 1-800-444-3353
Page 3
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20. Industrial applications must follow OSHA requirements.
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 and cement or other
masonry products, arsenic and chromium from chemically treated lumber.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 specifically designed
to filter out microscopic particles (California Health & Safety Code 25249.5, et seq.)
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.
Unpacking
When unpacking, check to make sure the parts listed on page 7 are included. If any
parts are missing or broken, please call Harbor Freight Tools at the number on the cover of
this manual as soon as possible.
Assembly and Operating Instructions
To Attach a Quick Connector:
1.
It is recommended that prior to use, you attach a Quick Connector (not included) into
the Die Grinder’s Air Inlet (13). To do so, wrap approximately 3” of pipe thread sealer
tape (not included) around the male threads of a Quick Connector. Then firmly tighten
the Quick Connector into the Air Inlet. (See Figure A.)
Figure A
Quick Connector (not included)
Air Inlet (13)
RECOMMENDED
COMPRESSED
Air Hose (not included)
Quick Connector to Oiler
(not included)
AIR SYSTEM
Regulator
(not included)
Quick Coupler
(not included)
Air Hose
(not included)
Compressor
(not included)
Filter (not included)
Oiler (not included)
SKU 95029
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Assembly and Operation Instructions (continued)
Note:The Composite Air Die Grinder is designed to be used with grinding attachments,
backing pads and sanding discs and other small attachments such as the grind-
ing drum shown in Figure B below.
To Operate the Die Grinder:
1.
2.
3.
WARNING: Prior to performing any assembly and/or adjustment procedures,make
sure the air supply hose (not included) is disconnected from the Die Grinder.
WARNING: Always wear ANSI-approved safety goggles, a full face shield, and
hearing protection when operating the Die Grinder.
Use the two Wrenches (30) to loosen the Collet Nut (29). (See Figure B below.)
Collet (28)
Wrench (30)
Grinding Drum
(not included)
Collet Nut (29)
Spindle (25)
Wrench (30)
Figure B
4.
5.
Insert the 1/4” diameter shank of a Grinding Accessory (not included) fully into the Col-
let (28). Then, firmly re-tighten the Collet Nut (29) to lock both the Collet and Grinding
Drum in place. (See Figure B.)
Connect the air supply hose to the Air Inlet (13).Turn on the air compressor and set its
regulator to the recommended 90 PSI for the Die Grinder.
6.
7.
8.
In order to keep the air supply hose out of the way, hang it over your shoulder.
IMPORTANT! Grip the Die Grinder firmly with both hands.
Trip the Lever Pin (15) with your finger. Then slowly apply hand pressure to the Lever
(14) until the desired speed is obtained.(See Figure C.) NOTE:The Die Grinder always
turns the Grinding Drum clockwise (reference:while holding the tool as you would when
operating it).
Lever (14)
Lever Pin (15)
Figure C
SKU 95029
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Assembly and Operation Instructions (continued)
9.
With a firm grip on the Die Grinder, lightly apply the Grinding Drum to the workpiece,
slowly and steadily moving the Grinding Drum to the right and left until you have achieved
the desired appearance (finish) on the workpiece.
10.
11.
12.
Once the work is completed, release the hand pressure on the Lever (14). The Lever
Pin (15) will automatically return to its locked position to prevent the Lever from ac-
cidentally being activated.
Turn off the air compressor.Trip the Lever Pin (15) with your finger and slowly squeeze
the Trigger (14) to release any remaining air pressure from the Die Grinder. Then dis-
connect the air hose from the tool.
Remove the Grinding Drum from the Die Grinder. Then store the tool in a clean and
dry location out of the reach of children.
Inspection, Maintenance, and Cleaning
1.
2.
Warning:Always make sure the Lever (14) is in its“OFF”position and disconnect
the Die Grinder from its compressed air supply before performing any inspection,
adjustments, maintenance, or cleaning.
Before each use, inspect the general condition of the Die Grinder. Check for loose
screws, misalignment or binding of moving parts, cracked or broken parts, damaged
air hose, and any other condition that may affect its safe operation. If abnormal noise or
vibration occurs, have the problem corrected before further use. Never use damaged
equipment.
3.
Daily:With a clean cloth, remove all dirt, oil, and grease from the Die Grinder. If neces-
sary, you may use a mild detergent. Do not use solvents, as damage to the Die Grinder
may occur. Do not immerse the Die Grinder in any liquids.
SKU 95029
For technical questions, please call 1-800-444-3353
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Parts List and Diagram
Part
1
Description
Plug Screw
Q’ty
1
Part
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Description
Q’ty
1
Bearing
2
O-Ring
1
Bearing Plate
Ball
1
3
O-Ring
1
2
4
Air Regulator
Valve Spring
O-Ring
1
Rotor Blade
Rotor
4
5
1
1
6
1
Cylinder
Bearing Plate
Bearing
1
7
Valve Stem
O-Ring
1
1
8
1
1
9
Motor Housing
Valve Bushing
O-Ring
1
Washer
1
10
11
12
13
14
15
1
Spindle
1
2
Lock Ring
Housing Cap
Collet
1
Muffler
1
1
Air Inlet
1
1
Trigger Lever
Lever Pin
1
Collet Nut
Wrench
1
1
2
NOTE: Some parts are listed and shown for illustration purposes only and are not available
individually as replacement parts.
SKU 95029
For technical questions, please call 1-800-444-3353
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Warranty
Limited 1Year
warrantY
Harbor FreightTools 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 1 year 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, 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.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDEDTHE PARTS DIAGRAM INTHIS
MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBU-
TOR 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 STATESTHAT 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.
SKU 95029
For technical questions, please call 1-800-444-3353
Page 8
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