Harbor Freight Tools Grinder 92007 User Manual

®
1/4” AIR DIE GRINDER  
Model 92144 / 92007  
ASSEMBLY AND OPERATING INSTRUCTIONS  
®
3491 Mission Oaks Blvd., Camarillo, CA 93011  
Visit ourWeb site at:http://www.harborfreight.com  
TO PREVENT SERIOUS INJURY,  
READ AND UNDERSTAND ALL WARNINGS  
AND INSTRUCTIONS BEFORE USE.  
Copyright© 2004 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 or replacement parts, please call 1-800-444-3353.  
 
WORK AREA  
1.  
2.  
Keep your work area clean and well lit. Cluttered benches and dark areas  
invite accidents.  
Do not operate pneumatic tools in explosive atmospheres, such as in the  
presence of flammable liquids, gases, or dust. Pneumatic tools create sparks  
which may ignite flammables.  
3.  
Keep bystanders, children, and visitors away while operating a pneumatic  
tool. Distractions can cause you to lose control. Protect others in the work area  
from debris such as metal filings and sparks. Provide barriers or shields as  
needed.  
PERSONAL SAFETY  
1.  
2.  
3.  
Stay alert. Watch what you are doing, and use common sense when oper-  
ating 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.  
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.  
Avoid accidental starting. Be sure the Trigger (4) is off before connect-  
ing 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 acci-  
dents.  
4.  
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.  
5.  
6.  
Do not overreach. Keep proper footing and balance at all times. Proper  
footing and balance enables better control of the tool in unexpected situations.  
Use safety equipment. Always wear ANSI approved safety glasses under-  
neath a full face shield, and hearing protection.  
TOOL USE AND CARE  
1.  
Use clamps or other practical ways to secure and support the workpiece to  
a stable platform. Holding the work by hand is unstable and may lead to loss of  
control. Only work on a workpiece that is properly secured.  
SKU 92144/92007  
For technical questions, please call 1-800-444-3353  
PAGE 3  
 
2.  
3.  
4.  
Do not force the tool. Use the correct tool for your application. The correct  
tool will do the job better and safer at the rate for which it is designed.  
Do not use the power tool if the Trigger does not turn it on or off. Any tool  
that cannot be controlled with the Trigger is dangerous and must be replaced.  
Disconnect the air hose from the tool before making any adjustments,  
changing accessories, or storing the tool. Such preventive safety measures  
reduce the risk of starting the tool accidentally.  
5.  
6.  
7.  
Store idle tools out of reach of children and other untrained persons. Tools  
are dangerous in the hands of untrained users.  
Maintain tools with care. Do not use a damaged tool. Tag damaged tools “Do  
not use” until repaired.  
Check for misalignment or binding of moving parts, breakage of parts,  
damaged air hose (not included), and any other condition that may affect the  
tool’s operation. If damaged, have the tool serviced before using. Many  
accidents are caused by poorly maintained tools.  
8.  
Use only accessories that are recommended by the manufacturer for your  
model. Accessories that may be suitable for one tool may become hazardous  
when used on another tool.  
SERVICE  
1.  
2.  
Tool service must be performed only by qualified repair personnel. Service  
or maintenance performed by unqualified personnel could result in a risk of injury.  
When servicing a tool, use only identical replacement parts. Follow  
instructions in the “Inspection, Maintenance, And Cleaning” section of this  
manual. Use of unauthorized parts or failure to follow maintenance instructions  
may create a risk of injury.  
SPECIFIC SAFETY RULES  
1.  
2.  
Maintain labels and nameplates on the Die Grinder. These carry impor-  
tant information. If unreadable or missing, contact Harbor Freight Tools for a  
replacement.  
To avoid accidental injury, always wear ANSI approved safety glasses, a  
full face shield, and hearing protection when operating the Die Grinder.  
SKU 92144/92007  
For technical questions, please call 1-800-444-3353  
PAGE 4  
 
3.  
4.  
5.  
Use clean, dry, regulated, compressed air at 90 PSI. Do not exceed the  
recommended 90 PSI. Never use oxygen, carbon dioxide, combustible gases, or  
any other bottled gas as a power source for this tool.  
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 (1) fitting of  
the Die Grinder.  
Always disconnect the Die Grinder from its compressed air supply source,  
and squeeze the Trigger (4) to release all compressed air in the tool before  
performing any maintenance or services.  
6.  
7.  
Industrial applications must follow OSHA requirements.  
WARNING! Some dust created by power sanding, sawing, grinding, drill-  
ing, 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 specially designed to filter out microscopic particles.  
(California Health & Safety Code 25249.5, et seq.)  
8.  
WARNING! The warnings, precautions, and instructions discussed in this  
manual cannot cover all possible conditions and situations that may occur. The  
operator must understand that common sense and caution are factors which  
cannot be built into this product, but must be supplied by the operator.  
SAVE THESE INSTRUCTIONS  
ASSEMBLY AND OPERATING INSTRUCTIONS  
NOTE: For additional references to the parts listed in the following pages, refer to the  
Assembly Diagram on page 9.  
To Attach A Quick Connector:  
1.  
WARNING! Prior to performing any assembly and/or adjustment  
procedures, make sure the air supply hose (not included) is disconnected  
from the Die Grinder.  
SKU 92144/92007  
For technical questions, please call 1-800-444-3353  
PAGE 5  
 
2.  
Prior to use, the Die Grinder requires the attachment of a Quick Connector (34)  
into its Air Inlet (1). 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.)  
RECOMMENDED COMPRESSED AIR SYSTEM  
QUICK CONNECTOR (34)  
AIR INLET (1)  
AIR HOSE  
(NOT INCLUDED)  
QUICK CONNECTOR TO OILER  
(NOT INCLUDED)  
QUICK COUPLER REGULATOR  
(NOT INCLUDED) (NOT INCLUDED)  
AIR HOSE  
(NOT INCLUDED)  
COMPRESSOR  
(NOT INCLUDED)  
FIGURE A  
FILTER  
(NOT INCLUDED)  
OILER  
(NOT INCLUDED)  
To Operate The Die Grinder:  
1.  
2.  
WARNING! Always wear ANSI approved safety glasses, a full face  
shield, and hearing protection when operating the Die Grinder.  
Use the two Wrenches (24) provided to loosen the Collet Nut (25).  
(See Figure B, next page.)  
3.  
4.  
Insert the Collet (26) into the Spindle (27). (See Figure B.)  
Insert the 1/4” diameter shank of a Grinding Drum (not included) fully into the  
Collet (26). Then, firmly re-tighten the Collet Nut (25) to lock both the Collet and  
Grinding Drum in place. (See Figure B.)  
SKU 92144/92007  
For technical questions, please call 1-800-444-3353  
PAGE 6  
 
COLLET  
(26)  
WRENCH (24)  
COLLET NUT  
(25)  
GRINDING DRUM  
(NOT INCLUDED)  
WRENCH  
(24)  
SPINDLE  
(27)  
FIGURE B  
5.  
Connect the air supply hose to the Quick Connector (34) on the Die Grinder.  
Turn on the air compressor, and set its regulator to the recommended 90 PSI for  
the Die Grinder. (See Figure A.)  
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 Safety (8) with your finger. Then slowly apply hand pressure to the  
Trigger (4) until the desired speed is obtained. NOTE: The Die Grinder always  
turns the Grinding Drum clockwise. (See Figure C.)  
TRIGGER  
SAFETY  
(4)  
(8)  
FIGURE C  
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.  
Once the work is completed, release hand pressure on the Trigger (4). The  
Safety (8) will automatically return to its locked position to prevent the Trigger  
from accidentally being activated. (See Figure C.)  
Turn off the air compressor. Trip the Safety (8) with your finger, and slowly  
squeeze the Trigger (4) to release any remaining air pressure from the Die  
Grinder. Then, disconnect the air hose from the tool. (See Figure A.)  
SKU 92144/92007  
For technical questions, please call 1-800-444-3353  
PAGE 7  
 
12.  
Remove the Grinding Drum from the Die Grinder. Then, store the tool in a clean,  
dry location out of reach of children.  
INSPECTION, MAINTENANCE, AND CLEANING  
1.  
2.  
WARNING! Always make sure the Trigger (4) 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. Do not use damaged equipment.  
3.  
Daily: With a clean cloth, remove all dirt, oil, and grease from the Die Grinder. If  
necessary, 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.  
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 ORWARRANTY OF ANY KINDTOTHE BUYERTHAT HE  
OR SHE IS QUALIFIEDTO MAKE ANY REPAIRSTOTHE PRODUCT, ORTHAT HE OR SHE IS QUALIFIED  
TO REPLACE ANY PARTS OFTHE 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 PARTSTHERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT  
PARTSTHERETO.  
SKU 92144/92007  
For technical questions, please call 1-800-444-3353  
PAGE 8  
 
PARTS LIST  
Part #  
1
2
3
4
5
6
7
Description  
Air Inlet  
Exhaust Deflector  
Valve  
Trigger  
Roll Pin  
Roll Pin  
Spring  
Safety  
Washer  
Throttle Valve  
O-Ring  
Spring  
Air Regulator  
O-Ring  
O-Ring  
Qty.  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Part #  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
Description  
Bearing  
Rear End Plate  
Rotor Blade  
Rotor  
Roll Pin  
Cylinder  
Wrench  
Collet Nut  
Collet  
Qty.  
1
1
4
1
1
1
2
1
1
1
1
1
1
1
2
1
8
9
10  
11  
12  
13  
14  
15  
16  
17  
Spindle  
Housing Cap  
Joint  
Bearing  
Front End Plate  
Steel Ball  
Washer  
Valve Screw  
Housing  
1
Quick Connector  
1
ASSEMBLY DIAGRAM  
34: QUICK CONNNECTOR NOT SHOWN.  
NOTE:  
Some parts are listed and shown for illustration purposes only, and are not  
available individually as replacement parts.  
SKU 92144/92007  
For technical questions, please call 1-800-444-3353  
PAGE 9  
 

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